A high capacity scroll pump

Abstract

The present invention relates to a high-capacity scroll vacuum pump designed for handling various fluids, including lubricating and non-lubricating types. The pump features a fixed scroll and an orbiting scroll housed in separate transmission and fixed casings, with braided tip / lip seals for improved reliability and longevity. The design includes a unique sliding mechanism for the fixed casing, allowing easy access to internal components for maintenance by a single operator. Taper roller bearings reduce friction, enabling the pump to handle loads up to 1000 times greater than traditional scroll pumps. A water jacket cooling system, which can be connected to an external refrigeration or forced cooling system, prevents overheating. The cooling system is detachably connected and sealed, ensuring no leakage into the processed fluid. These innovations enhance the pump's performance, durability, and ease of maintenance, making it ideal for high-capacity vacuum applications.

Description

A HIGH CAPCITY SCROLL PUMPFIELD OF THE INVENTION

[0001] The present disclosure generally relates to the field of scroll pumps. More particularly, the present subject matter relates to a dual shaft high capacity scroll pump.

[0002] The present invention relates generally to scroll pumps, and more particularly to high-capacity scroll pumps featuring dual-shaft drive configurations, integrated translational motion systems, and advanced thermal management assemblies including water cooling jackets.BACKGROUND

[0003] Circular translation motion is used in rotary machines like scroll pump. Generally, a scroll pump comprises an orbiting scroll with a fixed scroll in arrangement where it make pocket where gas or fluid get trap and pump toward center. This arrangement can be used as vacuum pump, compressor or fluid pump.

[0004] The present invention relates generally to scroll-type fluid machines, and more particularly to high-capacity scroll pumps that incorporate dual-shaft drive configurations, translational motion mechanisms, advanced sealing systems, oil injection technology, and integrated water cooling jackets for enhanced thermal and mechanical performance.

[0005] Scroll pumps are positive displacement devices widely used in industrial applications requiring efficient, oil-free, and quiet vacuum generation or fluid compression. These pumps operate by orbiting a movable scroll relative to a fixed scroll to progressively reduce the volume of sealed fluid chambers, thereby compressing or displacing fluid along a defined path between an inlet and outlet. Due to their low noise levels and high efficiency, scroll pumps are widely applied in sectors such as chemical processing, semiconductor manufacturing, pharmaceutical production, and vacuum metallurgy.

[0006] However, conventional scroll pumps face several performance limitations in high- capacity or continuous-duty scenarios. Traditional single-shaft designs with eccentric drive mechanisms are often structurally limited when exposed to high radial loads and sustained thermal stress. Heat is generated not only from the compression process but also through internal friction at bearings, seals, and transmission interfaces. Without robust thermal management, this heat can cause material expansion, seal degradation, and bearing wear, ultimately resulting in reduced efficiency, shortened lifespan, and increased maintenance requirements.

[0007] U.S. Patent No. 3,473,728 discloses a scroll-type rotary machine with an orbiting mechanism involving multiple crankshafts and coupling elements designed to control translational scroll motion. While this design improves scroll engagement, it introduces considerable mechanical complexity, including synchronization challenges and increased part count. Additionally, the system employs bellows for fluid isolation, which add bulk and generate excess heat requiring separate cooling. These features lead to increased maintenance and system inefficiency, particularly under high-duty operating conditions.

[0008] Moreover, existing scroll pump systems often rely on passive air cooling or basic thermal dissipation methods that are insufficient for modern high-performance applications. Such approaches result in uneven temperature distribution, thermal distortion, and inadequate clearance control between moving components. Additionally, many traditional designs lack modularity, making repair and part replacement cumbersome.

[0009] To overcome these challenges, there is a clear and long-standing need for a scroll pump that combines mechanical robustness with efficient thermal and operational control. Specifically, an improved scroll pump should:• Provide enhanced radial load handling and mechanical balance through a dual- shaft or multi-shaft drive architecture;• Include a pressure-rated water cooling jacket system integrated into both the scroll casing and transmission sections to ensure uniform thermal regulation;• Feature a detachable, modular mechanical layout for easy serviceability and customization;• Eliminate complex and failure -prone components such as bellows by employing reliable sealing technologies;• Utilize high-performance braided tip and face seals capable of withstanding extreme pressure differentials and radial loads without leakage;• Integrate an oil injection system to manage lubrication at critical interfaces, particularly in the transmission region, ensuring optimal friction control and extending bearing life.

[0010] The present invention addresses these needs by providing a novel scroll pump architecture that combines a dual crankshaft transmission system, a modular sealing and cooling arrangement, a precision oil injection flow control system, and a robust braided sealing interface — all engineered to enhance durability, reliability, and performance under demanding industrial conditions.OBJECTS OF THE INVENTION:

[0011] The primary objective of the present subject matter is to provide an apparatus for achieving controlled translational motion within a scroll pump assembly, thereby improving the mechanical performance and operational efficiency of high-capacity vacuum systems.

[0012] Another objective of the present subject matter is to provide a high-capacity scroll pump or a scroll pump integrated with a translational motion apparatus, enabling superior displacement volumes and pressure differentials compared to existing technologies.

[0013] Another objective of the present subject matter is to offer a high-capacity scroll pump capable of delivering multiple times the volumetric throughput of conventional scroll pumps, thereby enhancing application suitability in industrial, chemical, and process vacuum systems.

[0014] Another objective of the present subject matter is to provide a scroll pump incorporating a dual crankshaft configuration, arranged to symmetrically transmit torque and balance load distribution, thus enabling operation under high-pressure differentials without mechanical degradation.

[0015] Another objective of the present subject matter is to provide a scroll pump utilizing a dual- shaft drive assembly that effectively manages high radial loads generated during operation, ensuring long service life and stable performance.

[0016] Another objective of the present subject matter is to provide a scroll pump assembly adapted to handle a wide variety of working fluids, including those with minimal or no lubricating properties, without compromising mechanical integrity or sealing performance.

[0017] Another objective of the present subject matter is to provide a scroll pump mounted on a transmission stand with guided rail systems, such as those defined by parts 129A, 129B, 129A1, 129B1, 129 A2, and 129B2, allowing simplified alignment, disassembly, and servicing during maintenance operations.

[0018] Another objective of the present subject matter is to provide a scroll pump equipped with tapered roller bearings (e.g., 105A, 105B, 108A, 108B, 116A, 116B, 119A, 119B), which reduce friction and enable the orbiting scroll to endure significant radial loads without loss of kinematic precision.

[0019] Another objective of the present subject matter is to provide a scroll pump incorporating braided face and tip seals (e.g., 135, 136, 235, 236), optimized to mitigate fluidleakage between the orbiting and fixed scroll members, particularly under high-pressure and high-radial-load conditions.

[0020] Another objective of the present subject matter is to provide a scroll pump with a multi-jacketed cooling system, comprising parts such as 102AB2, 102D, 203, with integrated inlets and outlets (102AB3, 102AB4, 102E, 102F), which effectively regulate the thermal state of the pump while preventing leakage of coolant into the high-pressure working fluid stream.

[0021] Still another objective of the present subject matter is to provide a scroll pump wherein the cooling system is detachably mounted to the fixed scroll or casing, allowing for modular replacement or upgrade, thereby increasing the maintainability and versatility of the pump in demanding industrial applications.

[0022] Another objective of the present subject matter is to provide a scroll pump incorporating a water cooling jacket configured to surround or interface with the scroll casing and / or transmission housing, thereby enhancing heat dissipation during continuous or high- load operation.

[0023] Another objective of the present subject matter is to provide a scroll pump with a segmented water cooling jacket assembly, such as components 102AB2 (Transmission Disc Cooling Jacket) and 102D (Transmission Cooling Jacket), allowing for zonal thermal management and localized temperature control within the scroll pump system.

[0024] Another objective of the present subject matter is to provide a scroll pump in which the water cooling jacket is integrally formed or retrofitted with the fixed casing (e.g., part 201 or 203), facilitating effective thermal conduction away from the scroll body and minimizing thermal distortion.

[0025] Another objective of the present subject matter is to provide a scroll pump cooling system incorporating dedicated water inlets and outlets (e.g., parts 102AB3, 102AB4, 102E, and 102F) that allow for a continuous flow of coolant through the jacket, ensuring uniform cooling and preventing fluid stagnation or localized overheating.

[0026] Another objective of the present subject matter is to provide a scroll pump wherein the water cooling jacket assembly is leak-resistant and pressure-rated, suitable for integration with high-performance scroll pumps operating at elevated pressures and temperatures.

[0027] Another objective of the present subject matter is to provide a scroll pump in which the water cooling jacket is detachably coupled to the scroll components, allowing for rapid removal, inspection, and replacement without disturbing the primary mechanical alignment of the scroll elements.

[0028] Another objective of the present subject matter is to provide a scroll pump system having a redundant or dual-path cooling loop, enabled by multiple jacket and flow channel components, which allows for operational flexibility in mission-critical or continuous-duty applications.

[0029] Another objective of the present subject matter is to provide a scroll pump wherein the water cooling system is configured to maintain an optimal thermal envelope, thereby reducing seal wear, enhancing oil viscosity stability, and extending bearing life under variable operating conditions.

[0030] It is an object of the present invention to provide a scroll pump system that addresses the limitations of existing designs and enhances performance, reliability, and serviceability under high-capacity and continuous-duty conditions.

[0031] Another object of the invention is to provide a scroll pump equipped with an oil injection system that ensures targeted lubrication of critical moving components, including the crankshaft bearings and transmission line, thereby reducing friction, controlling wear, and extending the operational life of the pump.

[0032] Another object of the invention is to provide a scroll pump with an oil injection flow controller and solenoid valve arrangement that precisely regulates the volume and timing of lubricant delivery, optimizing pump performance across variable operating conditions.

[0033] Another object of the invention is to provide a scroll pump incorporating a durable braided tip and face seal assembly positioned between the orbiting and fixed scrolls to prevent leakage of high-pressure fluid during operation, even under significant radial loads and thermal expansion.

[0034] Another object of the invention is to provide a scroll pump with braided sealing elements that are wear-resistant and capable of maintaining a tight fluid seal over prolonged operation cycles, particularly in high-vacuum or chemically aggressive environments.

[0035] Another object of the invention is to provide a scroll pump featuring a reinforced transmission line assembly, including dual crankshafts and bearing hubs, capable of withstanding high torsional loads and delivering synchronized orbital motion with improved mechanical efficiency.

[0036] Another object of the invention is to provide a scroll pump with a modular transmission line, comprising detachable components such as transmission bearings, hubs, shafts, and lock nuts, enabling simplified assembly, disassembly, and maintenance during service intervals.

[0037] Another object of the invention is to provide a scroll pump system that integrates oil injection pathways and transmission components into a unified mechanical framework, minimizing leakage paths, simplifying internal routing, and ensuring consistent lubrication under all operating regimes.

[0038] Another object of the invention is to provide a scroll pump wherein the oil injection system, transmission line, and braided seals work in synergy to enable high-speed, high-load, and high-pressure operation with minimized frictional losses and thermal degradation.SUMMARY OF THE INVENTION:

[0039] The present invention relates to a high-capacity scroll vacuum pump designed for industrial-scale applications requiring efficient and continuous evacuation of gases or vapors. The invention provides a scroll pump assembly incorporating a fixed scroll and an orbiting scroll housed within a sealed structure, driven by a synchronized crank mechanism and powered by an external drive motor.

[0040] The scroll pump includes a robust transmission assembly mounted on a structural base frame, with multiple crankshafts supported by precision bearings and hubs. A synchronization system, such as a timing belt, gear, or synchronized motor, ensures the orbital motion of the scroll is properly maintained without rotation. Dynamic balance is achieved through dedicated load balancing assemblies integrated into the crankshaft system.

[0041] The invention further provides a dedicated water-cooling system consisting of integrated cooling jackets around both the fixed scroll and the crankshaft transmission region, allowing for temperature control during extended operation. An oil lubrication and injection system is also included to maintain mechanical reliability and reduce wear on critical moving components.

[0042] Gas is drawn into the pump via a suction port configured to direct vapor toward the rear side of the orbiting scroll, aiding in cooling and pressure equalization. Compressed gases are discharged axially through a centrally located exhaust port in the fixed scroll. To ensure vacuum integrity, the invention includes a comprehensive sealing system comprising tip seals, face seals, oil seals, and O-rings.

[0043] This scroll pump design offers improved volumetric efficiency, enhanced thermal performance, and reduced maintenance through modular construction. The arrangement is particularly suited for use in high-demand environments such as semiconductor manufacturing, chemical processing, and industrial vacuum systems.

[0044] Referring now to FIGS. 1 through 8 and the associated reference numerals, the present invention provides a high-capacity scroll vacuum pump comprising a modularassembly that includes a transmission casing (101), a fixed scroll casing (201), and a scroll assembly consisting of a fixed scroll (202) and a moving or orbiting scroll (102) supported by multiple synchronized shafts (115A, 115B). The orbiting scroll (102) is rotatably driven via a crank mechanism supported by a plurality of crank front bearings (105A, 105B) and crank rear bearings (108A, 108B), housed within bearing hubs (106A, 106B), and retained by bearing lock nuts (104 A, 104B). The shaft rotation is synchronized by a synchronization system, which may include a V-belt, timing belt (125), timing chain, gear train, or synchronized motor (131), depending on the implementation.

[0045] The drive torque is transmitted from a motor (131) via a drive pulley (132) and drive belt (126), connected to a crankshaft (115A, 115B), which imparts orbital motion to the moving scroll. Flywheels or pulleys (124A, 124B) may be included for rotational inertia and system balance. A reverse rotation mechanism (128) may be employed for backflushing or servicing purposes.

[0046] The scroll pump is mounted on a base skid (130) via a pair of transmission stands (129A, 129B), incorporating guide shims (129A1, 129B1) and stand guides (129 A2, 129B2) to maintain positional alignment. To ensure dynamic balance during high-speed operation, balancing weights (117A1, 117B2) along with keys (117A2, 117B2) and clamps (117A3, 117B3) are incorporated into the rotor assembly.

[0047] The scroll pump is designed for efficient vapor compression and is equipped with a suction port configured to allow process vapors or foreign gases to enter and impinge upon the back surface of the orbiting scroll (102), optimizing cooling and load distribution. The exhaust port (204) is located at the center of the fixed scroll (202) to facilitate axial ejection of compressed media.

[0048] A cooling system is integrated to manage thermal loads arising from continuous operation. A cooling jacket (203) is formed around the fixed casing (201), and additional jackets (102AB2, 102D) are incorporated into the transmission disc (102) to cool the crank mechanism. Coolant flow is regulated through dedicated water inlets (102AB3, 102E) and outlets (102AB4, 102F). The preferred cooling medium is water, but other liquids or gases may be used depending on system requirements.

[0049] A comprehensive sealing system includes oil seals (109A, 109B), tip seals (136, 236), and face seals (135, 235) to prevent leakage between the scroll elements and the housing, thereby maintaining vacuum integrity and minimizing contamination. An oil injection system comprising an oil injection pipe (206), flow controller (208), and solenoidvalve (207) ensures adequate lubrication of critical rotating components. Lubricant is stored in an oil tank (210) and monitored by an oil level sensor (211).

[0050] The scroll vacuum pump is enclosed within a robust transmission casing (101) and fixed casing (201), both of which are sealed with O-rings (102AB1, 201A, 201B, 201C) to prevent ingress or egress of working fluids. The assembly includes spacers (103A, 103B), bushings (111A, 11 IB, 114A, 114B), and covers (110A, HOB, 112A, 112B, 122A, 122B) for structural support and maintenance access. A drive guard (127) is optionally provided to shield the belt and pulley assembly for operator safety and contamination control.

[0051] Further, referring to FIGS. 1 through 8 and the associated reference numerals, the present invention provides a high-capacity scroll vacuum pump configured to deliver continuous and efficient gas evacuation under industrial conditions. The assembly comprises a transmission housing (101) operatively connected to a fixed scroll housing (201), enclosing a scroll mechanism formed by a fixed scroll (202) and an orbiting scroll (102). The orbiting scroll is mounted on crankshafts (115A, 115B) which are rotatably supported within the housing by crank front bearings (105A, 105B) and crank rear bearings (108A, 108B), located within crank bearing hubs (106A, 106B).

[0052] Power is supplied to the scroll assembly by a motor (131), which transmits torque through a drive pulley (132) and drive belt (126) to the crank mechanism. The crankshafts are dynamically balanced using load balancing assemblies (117A1, 117B2) consisting of keys (117A2, 117B2) and clamps (117A3, 117B3), and are retained with bearing lock nuts (104A, 104B). Rotational synchronization of the orbiting scroll is achieved through a synchronization mechanism, which may include V-belts, timing belts (125), gears, chains, or a synchronized drive. Pulleys (124A, 124B) and a reverse rotation arrangement (128) are provided for motion control and maintenance flexibility.

[0053] The transmission and scroll assemblies are mounted to a base skid (130) via transmission stands (129A, 129B), incorporating guide shims (129A1, 129B1) and guides (129 A2, 129B2) for structural alignment. Internal spacers (103A, 103B), bushings (111A, 11 IB; 114A, 114B), and covers (110A, HOB; 112A, 112B; 122A, 122B) provide support, alignment, and enclosure for internal rotating elements. For safety, a drive guard (127) is installed over the belt system.

[0054] The scroll vacuum pump includes a suction path configured such that gases or vapor-phase materials drawn in through the inlet reach the rear surface of the orbiting scroll, assisting in heat dissipation and pressure balancing. The exhaust outlet (204) is positioned centrally in the fixed scroll (202) for axial ejection of the compressed gas.

[0055] To mitigate thermal loads, a cooling system is incorporated, comprising a cooling jacket (203) around the fixed casing (201) and additional jackets integrated into the transmission disc (102AB2) and transmission casing (102D). Water inlets (102AB3, 102E) and outlets (102AB4, 102F) enable circulation of cooling fluid, preferably water. Sealing elements such as O-rings (102AB1, 102C, 201A, 201B, 201C), face seals (135, 235), and tip seals (136, 236) are used to maintain vacuum integrity and prevent interstage leakage.

[0056] The pump incorporates an oil injection system for lubrication, including an oil flow pipe (206), solenoid valve (207), and flow controller (208), which direct lubricant from an oil tank (210) to key rotating components. Automatic grease devices (107A, 107B) are positioned near the crank bearings for continuous bearing lubrication. An oil level sensor (211) provides operational feedback to ensure proper system lubrication.

[0057] The structural and fluid-handling components are assembled and enclosed within robust transmission (101) and fixed scroll (201) housings. All functional interfaces are sealed using appropriate elastomeric or metallic seals. The compact and integrated design allows for high-throughput vacuum generation with efficient thermal management and mechanical stability under continuous-duty operation.

[0058] Referring now to FIGS. 1 through 8, the scroll vacuum pump is mounted on a structural base skid (130), which supports both the transmission casing (101) and the fixed scroll casing (201). The fixed scroll assembly (FIGS. 5 and 6) is configured to be laterally slidable relative to the supporting base, thereby allowing the pump to be opened for inspection, service, or maintenance. The transmission box (101) is securely mounted to the base skid (130) and interfaces with the crankshaft drive system. An integrated oil injection arrangement, including an oil flow pipe (206), solenoid valve (207), and flow controller (208), delivers lubricating media at predefined intervals to critical contact surfaces, including the tip seals (136, 236), face seals (135, 235), and scroll flanks, ensuring reduced friction and wear during prolonged operation.

[0059] In one embodiment, a plurality of synchronized crankshafts (115A, 115B) is employed, each featuring an eccentric portion and a concentric shaft portion. These crankshafts are configured as cantilevered eccentric shafts and are rotationally synchronized via a synchronization arrangement, which may include synchronization belts (125), timing belts, gears, or a synchronized motor (131), as illustrated in FIG. 7. This synchronization ensures uniform orbital motion of the orbiting scroll without axial or radial misalignment.

[0060] Each crankshaft (115A, 115B) is journaled within a bearing hub (106A, 106B), which houses a pair of bearings (105A, 108A; 105B, 108B) to support both front and rearshaft ends. These bearings may be identical or different in type and size, depending on the load distribution and design criteria. Suitable bearing types include ball bearings, roller bearings, spherical roller bearings, needle bearings, taper roller bearings, or bushings, with selection based on operational speed, load, and lubrication regime.

[0061] In one aspect, balancing weights (117A1, 117B2) are mounted directly onto the eccentric shafts to counterbalance inertial forces caused by eccentric rotation. These weights are secured using balancing keys (117A2, 117B2) and clamps (117A3, 117B3), minimizing dynamic imbalance and reducing vibrations during the orbiting motion of the crankshaft system.

[0062] The transmission box (101) is located at a calculated offset from the orbiting scroll to allow for proper mechanical clearance, thermal isolation, and dynamic decoupling, thus preventing undesired thermal or mechanical interference between the transmission mechanism and the scroll assembly.

[0063] In one implementation, the transmission casing (101) and the fixed scroll casing (201) are each provided with a series of peripheral guide features (129 A2, 129B2) integrated into the transmission stands (129A, 129B) and guide shims (129A1, 129B1). These features facilitate precise linear movement of the fixed scroll casing and allow controlled disassembly or realignment of the scroll elements when the pump is opened.

[0064] The orbiting scroll and fixed scroll are each provided with an annular face seal (135, 235) configured to rest against the mating scroll surfaces. These seals function to prevent gas bypass between scroll chambers and maintain axial sealing during compression cycles, as shown in FIG. 4.

[0065] In addition, a tip seal (136, 236) is installed in a circumferential groove located in the spiral flank of each scroll element. These tip seals provide radial sealing between the scroll wraps and enhance the vacuum integrity and overall efficiency of the pump, particularly under varying thermal expansion conditions.

[0066] In one aspect, a clutch bearing (not explicitly numbered but part of the synchronization arrangement illustrated in FIG. 7 or 8) is integrated into the synchronization mechanism. This clutch or one-way bearing prevents reverse rotation of the orbiting scroll, which may occur during shutdown, backflow conditions, or system failures, thereby protecting the scroll geometry and synchronization integrity.

[0067] The features and technical configurations of the present scroll vacuum pump are further illustrated in the accompanying figures. These drawings are intended to aid in understanding the structure and function of the invention and are not intended to limit itsscope. Rather, they serve to exemplify preferred embodiments as described in the detailed specification.

[0068] Referring to FIGS. 1 through 8, the scroll vacuum pump is structurally mounted on a robust base skid (130), which supports both the transmission casing (101) and the fixed scroll casing (201). The fixed scroll assembly is designed to be linearly slidable with respect to the base skid via integrated guide mechanisms (129 A2, 129B2) and guide shims (129A1, 129B1), allowing for axial displacement of the fixed scroll to open the pump for maintenance or inspection. The transmission box (101) is rigidly affixed to the base and maintains a predefined clearance from the orbiting scroll for operational safety and thermal isolation. A centralized oil injection system — comprising an oil flow pipe (206), flow controller (208), and solenoid valve (207) — provides controlled lubrication to the scroll elements, particularly the tip seals (136, 236), face seals (135, 235), and associated sealing interfaces, at predetermined intervals to reduce wear and maintain vacuum performance.

[0069] In one embodiment, the scroll pump employs a plurality of synchronized crankshafts (115A, 115B), each configured as a cantilevered shaft having both eccentric and concentric segments. These crankshafts are rotationally synchronized using a mechanical synchronization arrangement, which may include a synchronization belt (125), timing chain, gear system, or synchronized motor (131), as illustrated in FIGS. 2 and 7. This synchronization ensures that each shaft imparts uniform orbital motion to the scroll, avoiding phase mismatch and vibration.

[0070] Each crankshaft (115A, 115B) is supported within a crank bearing hub (106A, 106B) by two precision bearings — typically crank front bearings (105A, 105B) and crank rear bearings (108A, 108B). These bearings may be of the same or varying types and sizes depending on load and design requirements, including ball bearings, roller bearings, needle bearings, taper roller bearings, spherical roller bearings, or bushings. The bearing hub assembly is retained with lock nuts (104A, 104B) and enclosed by crank covers (110A, HOB).

[0071] To compensate for inertial forces generated by the eccentric shaft motion, balancing weights (117A1, 117B2) are mounted on the crankshafts using keys (117A2, 117B2) and clamps (117A3, 117B3). This dynamic balancing minimizes radial and axial vibration, prolongs bearing life, and improves operational stability.

[0072] The transmission box (101) is located at a fixed offset from the scroll assembly to provide clearance for thermal expansion and prevent mechanical interference. The shafts drive an orbiting disc (102) mounted atop the crankshafts. This disc is guided by transmissiondisc guides (102A, 102B) and interfaces with the crank bearing hubs (106A, 106B) to translate rotary input into orbital motion. The guided nature of the orbiting disc ensures precise and controlled movement of the orbiting scroll.

[0073] The complete assembly is supported by transmission stands (129A, 129B) mounted on the base skid (130). Rotational energy is delivered from a motor (131) through a drive pulley (132) and drive belt (126), connected to the crankshaft system. A reverse rotation mechanism (128) is included to enable controlled bidirectional operation for system flexibility, such as back-flushing, re-priming, or servicing routines.

[0074] In the scroll assembly, both the fixed scroll (202) and orbiting scroll (integrated with the orbiting disc) are equipped with face seals (135, 235) that rest flush against the opposing scroll surfaces. These seals prevent axial leakage of compressed gases between scroll chambers, preserving compression efficiency and vacuum integrity. The face seals are preferably spring-loaded or elastomeric and are positioned concentrically relative to the scroll wraps.

[0075] Additionally, tip seals (136, 236) are inserted into machined grooves located along the spiral flanks of the scroll elements. These tip seals provide radial sealing between the fixed and orbiting scroll wraps, accommodating thermal expansion and ensuring consistent sealing over a range of temperatures and operating pressures.

[0076] A clutch bearing, such as a one-way or overrunning bearing (not explicitly numbered), is optionally incorporated into the synchronization drive train. This element prevents reverse rotation of the orbiting scroll under conditions such as sudden shutdown, back pressure from the exhaust, or emergency stop scenarios, thereby preserving synchronization and protecting the internal geometry of the scroll mechanism.

[0077] The invention will be further understood by reference to the accompanying figures, which illustrate key aspects of the design, assembly, and functionality. It is noted that the drawings are provided for illustrative purposes only and do not limit the scope of the invention, which is defined by the appended claims.BRIEF DESCRIPTION OF THE DRAWINGS:

[0078] Some non-limiting exemplary embodiments or features of the disclosed subject matter are illustrated in the following drawings.

[0079] FIG. 1 is an exploded perspective view of a high-capacity scroll pump, illustrating the primary structural and functional components.

[0080] FIG. 2 is a side elevation view of a synchronized shaft assembly, which maintains phase alignment between orbiting and stationary components.

[0081] FIG. 3 is a side elevation view of the scroll pump shown in an open or intake position, depicting the scroll elements during the gas intake cycle.

[0082] FIG. 4 is a side elevation view of the scroll pump in a closed or compression position, illustrating the meshing scrolls at peak compression.

[0083] FIG. 5 is a schematic representation of a water cooling jacket system for the fixed scroll, showing coolant flow paths surrounding the stationary scroll casing.

[0084] FIG. 6 is a schematic view of an integrated water cooling arrangement configured for both fixed and orbiting scrolls, enhancing thermal management under high-duty operation.

[0085] FIG. 7 illustrates the transmission and synchronization mechanism associated with the orbiting scroll, showing the arrangement of belts, pulleys, and phase-locking components.

[0086] FIG. 8 is a detailed mechanical drawing of the crankshaft bearing assembly, depicting the arrangement of front and rear bearings, lubrication system, and sealing components.

[0087] With specific reference now to the drawings, it is noted that the illustrations are provided by way of example only and are intended to facilitate an illustrative discussion of various embodiments of the present invention. Accordingly, the description, when taken in conjunction with the accompanying figures, will enable those skilled in the art to understand and practice embodiments of the invention.

[0088] Identical, corresponding, or functionally similar components appearing in multiple figures are generally indicated using the same reference numerals. In some cases, additional letters (e.g., “A,” “B,” etc.) may be appended to distinguish between similar components or multiple instances of a part. For brevity, such components may not be relabeled or redescribed in each figure. Cross-referencing to earlier figures or descriptions is implicitly understood unless explicitly stated otherwise.

[0089] The dimensions and proportions of components illustrated in the figures are selected for clarity and ease of illustration and may not be drawn to scale. Some components may be omitted, shown schematically, or depicted in partial or alternate views to more effectively illustrate key aspects of the invention.DETAILED DESCRIPTION OF THE PRESENT INVENTION:

[0090] It should be understood that the foregoing description and the accompanying figures (FIGS. 1-8) are intended to illustrate the principles and structural features of the present invention as embodied in a high-capacity scroll vacuum pump. The specific embodiments disclosed herein are presented by way of example and are not intended to limit the scope of the invention. Those skilled in the art will recognize that the inventive concepts disclosed may be adapted or modified to develop alternative configurations or assemblies that fulfill the same functional objectives described herein. Such modifications — including but not limited to variations in the synchronization mechanism (e.g., belt, gear, or chain drive), bearing arrangements, sealing systems, and cooling configurations — fall within the spirit and scope of the claimed invention.

[0091] Furthermore, the illustrative embodiments and examples provided herein are intended primarily to facilitate understanding of the key mechanical principles, operational methods, and integrated subsystems (e.g., transmission drive, synchronization arrangement, sealing assemblies, and lubrication / cooling systems) that characterize the invention. These principles may be implemented in various forms that are not explicitly shown or described but are nonetheless encompassed within the scope of the invention as defined by the appended claims. The novel structural combinations and methods of operation disclosed herein, along with their associated functional advantages, will be further apparent from the following detailed description when considered in conjunction with the referenced figures.

[0092] Referring to FIG. 1, which illustrates an exploded view of a high-capacity scroll vacuum pump assembly, the invention comprises a modular and industrial-grade configuration designed for efficient gas compression and evacuation. The system includes a transmission casing (101) and a fixed scroll casing (201) that houses a fixed scroll (202). An orbiting scroll, mounted on an orbiting disc (102), operates in conjunction with the fixed scroll to create the compression chambers.The orbiting disc (102) is driven by a plurality of synchronized crankshafts (115A, 115B), each supported by corresponding crank bearing hubs (106A, 106B). These hubs contain front bearings (105A, 105B) and rear bearings (108A, 108B), secured in place with crank bearing lock nuts (104A, 104B) and enclosed by crank covers (110A, HOB). Each shaft is fitted with oil seals (109A, 109B) and supported by bushings (111A, 11 IB) to ensure stability and minimize leakage during high-speed rotation.The synchronized crankshafts operate in phase through a synchronization mechanism that may include synchronization belts (125), a timing chain, gear system, or a synchronized motor (131). The shafts drive the orbiting disc (102), translating rotary motion into orbitalmovement, guided by transmission disc guides (102A, 102B). The motion is supported by transmission stands (129A, 129B) mounted on a rigid base skid (130).The drive system includes a motor (131) that delivers torque through a drive pulley (132) and drive belt (126). A reverse rotation mechanism (128) may be provided to enable controlled bidirectional rotation, enhancing functionality during maintenance or backflushing operations.To offset the eccentric motion of the crankshafts, balancing weights (117A1, 117B2) are mounted on the shafts using keys (117A2, 117B2) and clamps (117A3, 117B3), minimizing vibration and improving operational stability. A transmission cooling jacket (102D) and a scroll casing water jacket (203) are provided, with corresponding water inlets (102E) and outlets (102F) to circulate coolant — preferably water — around heat- generating components to manage thermal load.Sealing integrity is achieved through multiple components. Tip seals (136, 236) are positioned in machined grooves along the scroll flanks to maintain radial sealing, while face seals (135, 235) provide axial sealing between scroll faces. Additional oil seals (109A, 109B), front seals (113A, 113B), and back seals (123A, 123B) are installed to prevent lubricant migration and gas leakage throughout the drive and compression assemblies.The pump includes a centralized oil injection system, comprising an oil flow pipe (206), oil flow controller (208), solenoid valve (207), and oil storage tank (210). This system periodically delivers lubrication to the orbiting scroll, tip and face seals, and bearing assemblies as required.Working fluid is drawn into the system through a suction port (53), directed toward the rear side of the orbiting scroll for optimized pressure distribution. Compressed gases are discharged through a central exhaust outlet (204) located at the center of the fixed scroll (202), completing the compression cycle.

[0093] Referring to FIG. 1, there is illustrated an exploded view of a high-capacity scroll vacuum pump assembly. The system comprises a structural transmission casing (101) and a fixed scroll casing (201), which encloses a fixed scroll (202). Opposing the fixed scroll is an orbiting scroll, operatively mounted on a rotatable transmission disc (102). The orbital motion of the scroll is achieved via a plurality of synchronized crankshafts (115A, 115B), each supported by corresponding crank bearing hubs (106A, 106B). These hubs accommodate a combination of front (105A, 105B) and rear bearings (108A, 108B), which may be selected from ball bearings, roller bearings, or bushings, depending on load and performance requirements. Bearing assemblies are retained using crank bearing lock nuts(104A, 104B) and are further supported by crank bushings (111 A, 11 IB) and enclosed within crank covers (110A, HOB).Shaft synchronization is achieved through a mechanical coordination system that may include a synchronization belt (125), timing chain, gear train, or synchronized motor (131). The transmission disc (102) is further guided by disc guides (102A, 102B) to ensure precise orbital translation. Motion is initiated via a drive pulley (132) coupled to the motor (131) and transferred by a drive belt (126) to the crankshaft system. The complete assembly is supported on transmission stands (129A, 129B), which are fixed to a rigid base skid (130). To provide additional operational versatility, a reverse rotation mechanism (128) is incorporated, enabling bidirectional operation, which may assist in clearing obstructions or system backflushing.To minimize unbalanced dynamic loads resulting from eccentric shaft motion, balancing weights (117A1, 117B2) are attached to the crankshafts and secured via keys (117A2, 117B2) and clamps (117A3, 117B3). This configuration effectively neutralizes inertial forces during rotation, enhancing mechanical efficiency and reducing vibration.Thermal regulation is achieved through an integrated cooling arrangement, which includes a transmission cooling jacket (102D) and a scroll casing water jacket (203). Coolant, preferably water, is circulated through dedicated inlet (102E) and outlet (102F) ports in the transmission section, and through cooling ports (102AB3, 102AB4) associated with the transmission disc, maintaining thermal stability under sustained operation.To preserve vacuum integrity and mechanical longevity, a comprehensive sealing system is provided. Tip seals (136, 236) are embedded in the spiral grooves of both the fixed and orbiting scrolls to maintain radial sealing under thermal expansion. Face seals (135, 235) are disposed between the mating surfaces of the scrolls to prevent axial leakage of process gases. Additional sealing elements, such as shaft seals (109A, 109B), front seals (113A, 113B), and back seals (123A, 123B), are used throughout the rotating and reciprocating components to prevent ingress of contaminants and egress of lubricants or gases.An oil injection and lubrication system is provided to maintain continuous operation and minimize wear across the sealing interfaces and bearing elements. This system comprises an oil injection pipe (206), oil flow controller (208), solenoid valve (207), and an oil storage tank (210). Oil is delivered at defined intervals to critical contact areas, including the scroll sealing zones and bearing locations.Gas enters the scroll pump via a strategically located suction port (53), which directs incoming media to the rear face of the orbiting scroll to ensure even pressure distribution.Compressed gas is discharged through a central exhaust port (204) located within the fixed scroll (202), thereby completing the pumping cycle.

[0094] The plurality of synchronized crank shafts 115A, 115B having an eccentric portion PF, the plurality of synchronized shafts (115A, 115B) are cantilever eccentric shaft and the shafts 115A, and 115B are in synchronization with each other with the help of the synchronization arrangement 125; wherein the synchronization arrangement comprising at least one synchronization belt (125), one drive belt (126), and optionally one or more of: a timing belt, gear, chain, or synchronized motor, to ensure synchronized rotation of the shafts, The crank bearing hub 106A and 106B having the plurality of bearings 105A, 105B, 108A, and 108B and the crank bearing hub 106 A and 106B is mounted over the eccentric portion PF of the synchronized shaft 115A and 115B, and the plurality of bearings 105A, 105B, 108A, and 108B in the bearing hub 106A and 106B are of same size or different sizes with respect to one another and the bearings may be a ball bearing, a roller bearing, a spherical roller bearing, a needle bearing, a taper roller bearing or a bush; or more preferably a taper roller bearing.

[0095] Referring to FIG. 1, a pair of balancing weights (117A1, 117B2) are mounted on the respective crankshafts (115A, 115B) to counteract the dynamic imbalance resulting from the eccentric portions of the crankshafts. These balancing weights are precisely positioned along the shaft axis opposite the center of mass of the eccentric lobes to neutralize centrifugal forces generated during the orbital motion of the orbiting scroll (102). The weights are securely affixed to the crankshafts via corresponding balancing keys (117A2, 117B2) and clamps (117A3, 117B3), ensuring phase-aligned rotation and minimizing vibrational loads on the transmission and scroll assemblies. This configuration enhances operational stability, reduces bearing wear, and ensures smooth dynamic performance during high-speed operation.

[0096] Referring to FIG. 1, the transmission casing (101) is structurally configured to remain at a predefined axial offset from the orbiting scroll, allowing for optimal dynamic clearance and thermal expansion control. The transmission casing (101) and the fixed scroll casing (201) are each provided with a plurality of peripheral guide features, including transmission disc guides (102A, 102B) and transmission stand guides (129 A2, 129B2), which facilitate precise alignment during assembly and operational stability during motion.Both the orbiting scroll (102) and the fixed scroll (202) are equipped with face seals (135, 235) disposed axially between the opposing scroll surfaces. These seals are designed to maintain airtight separation between the compression chambers and adjacent voids, ensuringhigh volumetric efficiency and minimal leakage under vacuum conditions. Additionally, tip seals (136, 236) are seated within machined grooves in the spiral profiles of both the orbiting and fixed scrolls. These tip seals provide radial sealing along the scroll flanks, compensating for thermal expansion and wear over extended operational cycles.This dual sealing arrangement — comprising both face and tip seals — ensures robust containment of working gases within the scroll chambers, supports long-term operational integrity, and contributes to the overall efficiency and reliability of the high-capacity scroll vacuum pump.

[0097] In one embodiment of the present invention, and as illustrated in FIG. 1, the suction port is configured such that incoming vapor or foreign particulates are directed toward the rear surface of the orbiting scroll. This rear- side entry facilitates uniform pressure distribution across the scroll assembly and reduces axial loading on the moving components. The exhaust pipe (204) is positioned concentrically at the center of the fixed scroll (202), enabling efficient axial discharge of the compressed gases following the completion of the compression cycle.The scroll assembly, including the orbiting scroll (102) and fixed scroll (202), is thermally managed by an integrated cooling system, wherein cooling jackets (203, 102D) and associated fluid paths are configured to circulate a cooling medium, preferably water, around the high-friction and high-temperature regions of the scroll structure. The transmission casing (101) is mounted on a robust supporting base (130), and the fixed scroll casing (201) is mechanically mounted in a manner that allows sliding displacement, enabling tool-free access for service, inspection, or scroll assembly opening.Additionally, the system includes a centralized lubricating arrangement, which supplies lubrication at predefined intervals to the scroll elements (202, orbiting scroll), tip seals (136, 236), and face seals (135, 235). The lubrication system ensures reduced friction, enhanced sealing longevity, and reliable operation over extended duty cycles.

[0098] The cooling arrangement for the high-capacity scroll vacuum pump is further defined to include an external liquid cooling loop containing a coolant such as water or another thermally conductive fluid. The system incorporates cooling jackets (203 for the fixed scroll casing and 102D for the transmission casing) integrated within the pump body. These jackets are fluidly connected via a plurality of hose pipes, comprising at least one coolant inlet (102E, 102AB3) and one coolant outlet (102F, 102AB4) to facilitate closed-loop circulation of the cooling medium.The external cooling source may include, but is not limited to, a forced circulation cooling system, a refrigerated chiller unit with coil-based heat exchangers, or other refrigeration equipment capable of maintaining operational temperatures within design limits. This integrated cooling strategy ensures thermal stability of critical components during high-load or continuous-duty operation, thereby preserving sealing integrity, preventing thermal deformation, and extending the overall service life of the scroll pump system.

[0099] Referring to FIG. 1, the high-capacity scroll vacuum pump is powered by a motor (131), which transmits rotational energy via a drive pulley (132) and a drive belt (126). This motion is transferred to a pair of transmission pulleys (124A, 124B), which are mounted on the ends of the crankshafts (115A, 115B). These shafts are part of a synchronized drive train and operate in phase through a synchronization arrangement, which may include the synchronization belt (125) or other mechanical systems such as timing chains or gear drives. The crankshafts (115A, 115B) are supported within crank bearing hubs (106A, 106B) and operate with associated crank front and back bearings (105A, 105B, 108A, 108B) to ensure smooth rotation. The rotational energy from the shafts drives the transmission disc (102), which in turn induces an orbital motion in the orbiting scroll (not numbered specifically but mechanically integrated atop disc 102). This mechanism translates rotational energy into orbital or translational movement required for gas compression within the scroll geometry.

[0100] As the orbiting scroll moves relative to the fixed scroll — shown in the closed position in FIG. 4 — a series of crescent- shaped gas chambers are formed and progressively compressed toward the central region of the scroll assembly. This volumetric compression generates a vacuum at the inlet side, allowing ambient gas or vapor to be drawn into the system through the suction port. The vacuum level generated can be monitored using a pressure gauge mounted at a suitable location on the pump housing.Once compressed, the gas is discharged axially through the exhaust pipe (204) located at the central axis of the fixed scroll. This discharge is facilitated by the scrolls' dynamic engagement and sealing interfaces, including tip seals (136, 236) and face seals (135, 235), which maintain internal compression integrity and prevent leakage during operation. The overall configuration ensures high-efficiency vacuum generation and controlled gas exhaust from the scroll chamber into downstream applications.

[0101] In one embodiment, the cooling jacket (203) — also referred to as a water jacket or coolant pocket — is integrally or detachably mounted on the fixed scroll of the high-capacity scroll vacuum pump. The cooling jacket (203) is designed to circulate a cooling medium,preferably water, around high-temperature regions of the fixed scroll to dissipate heat generated during continuous compression cycles. The jacket is fluidly connected via a pair of ports, namely the cooling inlet (102E) and cooling outlet (102F), and may be detachably secured to the fixed scroll using fasteners or sealed interfaces to allow for ease of maintenance, inspection, or replacement. This arrangement ensures localized thermal control, enhances scroll longevity, and maintains dimensional stability critical to sealing efficiency and pump performance.

[0102] Referring to FIG. 2, a side view of a synchronized cantilever crank shaft 115A is illustrated. The synchronized shaft 115A is composed of multiple distinct portions: PQ, QD, DE, EF, FG, GH, HI, IJ, JK, KL, LM, and MR. Among these portions, the portion PF is eccentric of the crank shaft PR. The eccentric portion (PF) begins at point P and extends through to point F, and from point F, the concentric portion (FR) starts and continues up to point R. This configuration ensures that the shaft operates effectively to drive the orbital motion of the associated scrolls in the vacuum pump, providing the necessary synchronization for smooth operation.

[0103] Referring to FIG. 3, a side view of the high-capacity scroll vacuum pump is illustrated in an open position. In this configuration, the fixed scroll is axially displaced away from the orbiting scroll, such that the two scroll elements are no longer in contact. The open position facilitates access to the compression chamber for inspection, maintenance, or service operations. This separation is achieved by allowing the fixed scroll casing (201) to slide relative to the supporting structure, made possible by integrated guide mechanisms such as the transmission stand guides (129 A2, 129B2) and guide shims (129A1, 129B1). Opening the scroll assembly enables direct visual and physical access to critical internal components, including the tip seals (136, 236) and face seals (135, 235), and provides clearance for cleaning or replacement without disassembling the complete pump housing.

[0104] In one embodiment, the fixed scroll and the orbiting scroll can be readily separated by disengaging their bolted or fastened interface. This is accomplished by unfastening the mechanical connections at the mating surfaces of the scrolls, allowing the fixed scroll casing (201) to be slid laterally along the supporting base (130). The base is configured with integrated guide features — such as guide rails, guide shims (129A1, 129B1), or transmission stand guides (129A2, 129B2) — that enable smooth, controlled linear displacement of the fixed scroll without requiring full disassembly of the pump assembly.This guided sliding mechanism ensures that the entire weight of the fixed scroll is supported during movement, both in operational (energized) and non-operational (de-energized) conditions. This design facilitates quick maintenance access and component servicing while maintaining alignment and structural integrity of the pump assembly.

[0105] Referring to FIG. 4, the high-capacity scroll vacuum pump is illustrated in the closed (operational) position, wherein the fixed scroll is fully re-engaged with the orbiting scroll following separation. From the previously described open position in FIG. 3, the fixed scroll casing (201) is repositioned by sliding it along the supporting base (130), which is configured with precision alignment features such as transmission stand guides (129A2, 129B2) and guide shims (129A1, 129B1).These guide structures facilitate accurate, linear movement and ensure that the weight of the scroll is fully supported during both operational and maintenance states. Upon reaching the correct alignment, the fixed scroll is securely fastened to the orbiting scroll using mechanical fasteners at predefined contact surfaces. The peripheral guide system — integrated primarily on the fixed scroll casing (201) — ensures repeatable, error-free reassembly. This maintains optimal sealing engagement of the face seals (135, 235) and tip seals (136, 236), ensuring reliable compression chamber integrity and efficient vacuum generation during operation.

[0106] The figure 7 depicts the assembly wherein synchronized pulleys (124A, 124B) are mounted on one end of respective cantilevered eccentric shafts (115A, 115B). These pulleys receive rotational input via the drive pulley (132) and drive belt (126) from the motor (131), with motion synchronized by a synchronization belt (125) or equivalent mechanism.At the opposite end of each eccentric shaft (115A, 115B), an orbiting disc (102) — mechanically linked to or integrated with the orbiting scroll — is mounted. As rotational energy is transmitted through the shafts, the eccentricity induces an orbital path in the orbiting disc (102). This orbital motion is then imparted to the orbiting scroll, which moves relative to the fixed scroll to facilitate gas compression. The arrangement effectively transforms rotary input into the required translational motion for scroll pump operation, while maintaining dynamic balance through supporting components such as crank bearing hubs (106A, 106B) and balancing weights (117A1, 117B2).

[0107] Further, the plurality of eccentric shafts (115A, 115B) experience an unbalanced radial load due to the offset mass of the orbiting disc (102) and the orbiting scroll mounted at one end. To counteract this dynamic imbalance and maintain smooth rotational motion, balancing weights (117A1, 117B2) are affixed to the shafts. These weights are strategically positioned along the shaft length between the orbiting disc (102) and the synchronizedpulleys (124A, 124B), depending on the specific mass distribution and dynamic balancing requirements of the assembly. This arrangement ensures minimization of vibration, reduces bearing loads, and enhances the operational stability and lifespan of the scroll pump system.

[0108] Furthermore, a plurality of lubrication points, including oil injection ports, grease fittings, or serviceable lubrication holes, may be strategically incorporated into the assembly at locations subject to relative motion or mechanical load. These include, but are not limited to, the crank bearing hubs (106A, 106B), front and back bearings (105A, 105B, 108A, 108B), synchronized shafts (115A, 115B), and associated bushings (111A, 11 IB). The purpose of these lubrication provisions is to ensure continuous, low-friction operation of critical rotating and orbiting components, minimize wear, extend bearing life, and reduce the risk of thermal buildup or seizure.In a preferred embodiment, automatic grease devices (107 A, 107B) may be integrated to provide consistent and timed lubrication to key bearing interfaces without manual intervention. These features enhance the maintainability and reliability of the high-capacity scroll vacuum pump, especially in continuous or high-load operational environments.

[0109] In yet another aspect of the invention, the high-capacity scroll vacuum pump is an advanced and highly efficient device designed to create a high vacuum. It incorporates a variety of sophisticated components and mechanisms to ensure optimal performance, long- lasting durability, and ease of maintenance. This vacuum pump is particularly well-suited for applications that require robust and reliable vacuum generation. Key components of the system include:• Transmission casing (101), which houses and supports the internal mechanisms.• Transmission disc (102) and associated transmission disc guide (102A & 102B), which ensure precise alignment and movement.• Transmission disc O-ring (102AB1) and transmission disc cooling jacket (102AB2), critical for sealing and maintaining temperature stability.• Transmission cooling inlet (102E) and outlet (102F), which facilitate the efficient management of coolant through the system.• Crank bearing hub (106 A & 106B) and automatic grease devices (107 A & 107B), ensuring smooth motion and lubrication of moving parts.• Crank shaft (115A & 115B) and transmission front bearing (116A & 116B), which provide robust support and ensure consistent operation.• Synchronization belt (125) and drive belt (126), which work together to transfer mechanical energy efficiently throughout the system.• Oil injection flow pipe (206), solenoid valve (207), and oil storage tank (210), critical for maintaining proper lubrication and flow control.• Fixed casing (201) and fixed disc (202), with the fixed scroll components featuring advanced sealing technologies like fixed face seal (235) and fixed tip seal (236), all contributing to the pump’s ability to maintain high vacuum levels.By integrating these sophisticated parts, the vacuum pump ensures enhanced operational efficiency, increased reliability, and minimal maintenance downtime, making it an ideal solution for demanding vacuum generation tasks in various industrial applications.Components and Their Functions1. Transmission Box (101): o Houses the mechanisms that transmit power from the driving energy source to the moving parts of the pump.2. Fixed Scroll Box (201) o Contains the fixed scroll (202) and provides structural integrity to the pump assembly.3. Scroll Assembly o Comprises a fixed scroll (202) and a moving (orbiting) scroll (102), which together create the vacuum through their interaction. The orbiting scroll (102) and fixed scroll (202) are sealed using fixed face seal (235) and fixed tip seal (236).4. Synchronized Crank Shafts (115A, 115B)1. Multiple shafts ensure synchronized motion of the scrolls. Each shaft has an eccentric portion for precise motion control. Crank Shaft (115A & 115B) means the main shaft that converts rotary motion into linear motion via its eccentric design. Here shaft has meaning as a shaft having an eccentric portion at one end as referenced in the drawings and may be understood as a pair (or more than one) of synchronized crank shafts (115A, 115B), each having an eccentric portion and a concentric portion configured to drive the orbiting disc. The eccentric portion is named as PF in figure 2.5. Crank Bearing Hub (106A, 106B) and Bearings (105A, 105B, 108A, 108B)The bearing hub (106A & 106B) houses multiple bearings, providing smooth rotational motion and supporting the synchronized shafts. Bearings may include ball bearings, roller bearings, spherical roller bearings, needle bearings, taper roller bearings, or bushes. The bearings i.e. a plurality of bearings (105A & 105B, 108A &108B) are mounted onto each eccentric shaft (115A & 115B) at designated locations along its length. A first bearing is positioned to abut a defined shoulder or step on the shaft, aligning concentrically with a first bore in the transmission casing (101) and supported therein. A second bearing is mounted at a spaced interval from the first, closer to the free cantilevered end of the shaft, and is aligned with a second bore in the transmission casing. A locking nut (104A & 104B) is then fastened at the end of the shaft to axially secure the entire bearing assembly, ensuring both radial and axial stability during operation.6. Flywheels or Pulleys (124A, 124B) o Assist in the transmission of power and help in maintaining the smooth operation of the scroll mechanism.7. Driving Energy Source (131) o Powers the entire vacuum pump system, converting electrical energy into mechanical motion.8. Supporting Base (130) o Provides stability and support for the vacuum pump. The fixed scroll box (201) can slide on this base for easy opening and maintenance.9. Balancing Weights (117A1, 117B2) o Mounted on the shafts to balance the eccentric load during the orbiting motion, reducing vibrations and wear.10. Cooling Arrangement (102AB2, 203, 102D)• The cooling arrangement consists of integrated cooling jackets such as the fixed casing water jacket (203) and the transmission disc cooling jacket (102AB2).• These components use a cooling medium, preferably water, to regulate the temperature of the fixed scroll (202) and orbiting scroll (102).• Water inlet and outlet ports (102 AB 3 and 102 AB 4) allow fluid to circulate through the jackets, maintaining optimal thermal performance.• This system is illustrated in Fig. 5 and Fig. 6, which show coolant flow paths in both fixed and transmission disc assemblies.11. Oil Seals, Tip Seals, and Face Seals• The vacuum integrity of the pump is ensured through a comprehensive sealing system: o Oil seals (109 A & 109B) prevent leakage around the crank shafts.o Fixed face seal (235) and fixed tip seal (236) seal the interface of the fixed scroll (202). o Transmission face seal (135) and transmission tip seal (136) ensure sealing within the orbiting scroll assembly (102).• These seals prevent the escape of lubricants and maintain airtight operation under high-vacuum conditions.12. Oiling Arrangement (206)• The oil injection flow pipe (206) delivers lubricating media to critical regions of the pump, including the scroll interfaces, tip seals, and face seals.• This system is part of a broader oiling network that may also include components such as the solenoid valve (207), oil injection flow controller (208), oil storage tank (210), and oil level sensor (211) for automated and precise lubrication.13. Suction and Exhaust• The suction port is designed to direct incoming vapor or foreign materials toward the back surface of the orbiting scroll (102).• The exhaust pipe (204) is centrally located within the fixed scroll (202), allowing compressed gases to be expelled efficiently after the compression cycle.• This arrangement ensures an effective flow path, contributing to high vacuum generation and system efficiency.Functional Details1. Cooling Mechanism o The cooling arrangement (102D) ensures that the scrolls (102, 202) remain at an optimal temperature during operation by circulating a cooling medium such as water. This prevents overheating and extends the lifespan of the pump components. This system can be observed in Fig. 5 and Fig. 6, showing coolant flow paths through 102AB2, 102AB3, and 102AB4.2. Support and Accessibility o The supporting base (130) not only provides stability but also allows the fixed scroll box (201) to slide, enabling easy access for maintenance and inspection. The transmission casing (101) is securely mounted on this base to maintain a consistent operational distance from the orbiting scroll (102).3. Eubrication System o The oil injection arrangement (206) automatically lubricates critical components, such as the scrolls (102, 202), tip seals (136, 236), and face seals(135, 235), at regular intervals. This ensures smooth operation and reduces wear and tear on the moving parts.4. Shaft Synchronization o The synchronized shafts (115A, 115B), equipped with both eccentric and concentric portions, are crucial for the precise movement of the orbiting scroll (102). The synchronization arrangement (125, 126) may include belts, chains, or gears to ensure the shafts move in harmony, providing consistent vacuum generation.5. Load Balancing o Balancing weights (117A1, 117B2) attached to the shafts (115A, 115B) counteract the eccentric loads, minimizing vibrations and enhancing the stability of the pump during operation. This balance is essential for maintaining the integrity of the pump's mechanical components.6. Sealing Mechanisms o The use of multiple sealing types — including oil seals (123 A, 123B), tip seals (136, 236), and face seals (135, 235) — ensures that the pump operates efficiently without leaks. The tip seals fit into grooves in the scrolls (102, 202), while the face seals rest on the surfaces of both the orbiting and fixed scrolls, providing comprehensive sealing.7. Reverse Rotation Prevention o A reverse rotation arrangement (128) integrated into the synchronization system (125, 126) prevents reverse rotation of the orbiting scroll (102), ensuring unidirectional movement and protecting the pump from potential damage caused by reverse flow.Additional Features1. Guides on Fixed and Transmission Boxes (201, 101) o Both the transmission box (101) and fixed scroll box (201) are equipped with guides around their peripheries to facilitate precise movement and alignment during maintenance or operation.2. Clutch Bearing for Reverse Rotation (128) o The clutch bearing (128) ensures that the orbiting scroll (102) cannot rotate in the reverse direction, safeguarding the pump's internal components from undue stress and damage.By integrating these advanced features and mechanisms, the high-capacity scroll vacuum pump offers superior performance, reliability, and ease of maintenance, making it ideal for demanding industrial applications.

[0110] In yet another object of the invention, the high-capacity scroll vacuum pump comprising: a transmission box; a fixed scroll box; a scroll having a fixed scroll and a moving / orbiting scroll; a plurality of synchronized shafts; a plurality of bearing hub; a plurality of bearings; a plurality of flywheels or pulleys; a synchronization arrangement by means of a synchronizer as V-belt, timing belt, timing chain, gear, synchronized motor; a driving energy source; a supporting base; a plurality of balancing weight; a cooling arrangement; a plurality of oil seals; a plurality of tip seal; a plurality of face seal; an oiling arrangement; a suction and an exhaust, wherein the suction is such that vapor or any foreign material entering through the suction reaches a back surface of the orbiting scroll and the exhaust of the high capacity vacuum pump is at the center of the fixed scroll; wherein, the cooling arrangement is for cooling the scrolls using a cooling media preferably water; wherein, the supporting base is such that the scroll vacuum pump is being supported and the fixed scroll box can be slide for an opening of the scroll pump and the transmission box is mounted on the supporting base; wherein, the oiling arrangement is for oiling the scroll, the tip seal and the face seal at predefined interval using a lubricating media; wherein the plurality of synchronized shafts having an eccentric portion and a concentric portion; the plurality of synchronized shafts is a cantilever eccentric shaft and the shafts are in synchronization with each other with the help of the synchronization arrangement; wherein the bearing hub having the plurality of bearings and the bearing hub is mounted over the synchronized shaft; the plurality of bearings in the bearing hub are preferably two and the bearings are of same size or different sizes with respect to one another and the bearings may be a ball bearing, a roller bearing, a spherical roller bearing, a needle bearing, a taper roller bearing or a bush; wherein the balancing weight is being mounted onto the shaft such that it balances the eccentric load of the eccentric portion of the shaft during an orbiting motion of the shaft; wherein the transmission box remains at a predefined distance from the orbiting scroll; wherein the transmission box or the fixed boxes are being provided with a plurality of guides on the periphery of the fixed scroll box or the transmission box; wherein the orbiting scroll and the fixed scroll are provided with a face seal and the face seal rests on the surface of the orbiting scroll and the fixed scroll; wherein the tip seal is inserted in the groove provided in the scroll of the orbiting scroll and the fixed scroll; wherein a clutchbearing is attached to the synchronization arrangement to prevent the reverse rotation of the orbiting scroll.

[0111] In yet another object of the invention, the high-capacity scroll vacuum pump comprising: i. a transmission casing (101); ii. a fixed casing (201); iii. a scroll assembly including an orbiting scroll (102) and a fixed scroll (202); iv. a pair of synchronized shafts (115A, 115B), each having an eccentric portion and a concentric portion configured to drive the orbiting scroll in an orbital motion relative to the fixed scroll; v. a synchronization arrangement comprising at least one synchronization belt (125), one drive belt (126), and optionally one or more of: a timing belt, gear, chain, or synchronized motor, to ensure synchronized rotation of the shafts; vi. a plurality of bearing hubs (106A, 106B) mounted over the synchronized shafts; vii. a plurality of bearings (105A, 105B; 108A, 108B) housed within the bearing hubs to support the shafts; viii. a plurality of balancing weights (117A1, 117B2) mounted on the shafts to compensate eccentric loading during orbiting motion; ix. a cooling arrangement comprising a transmission disc cooling jacket (102AB2), a water inlet (102AB3), a water outlet (102AB4), and a fixed casing water jacket (203) for circulating a cooling medium to regulate the temperature of the scroll assembly; x. an oiling arrangement (206) for lubricating the scroll components and seals at predefined intervals; xi. a plurality of sealing elements including oil seals (123A, 123B), tip seals (136, 236), and face seals (135, 235); xii. a suction port configured such that vapor or foreign material entering through the suction impinges on a rear surface of the orbiting scroll (102); xiii. an exhaust port positioned centrally within the fixed scroll (202); xiv. a supporting base (130) adapted to support the fixed casing (201) in a slidable configuration and to mount the transmission casing (101); and xv. a reverse rotation arrangement (128) operatively coupled to the synchronization arrangement to prevent reverse rotation of the orbiting scroll (102), wherein the tip seals (136, 236) are disposed in grooves formed in the scrolls, and the face seals (135, 235) rest between opposing surfaces of the orbiting and fixed scrolls to prevent leakage during operation;, wherein the reverse rotation arrangement (128) comprises a clutch bearing configured to allow unidirectional motion of the orbiting scroll (102) and prevent reverse motion caused by sudden pressure fluctuations or flow reversals; wherein the cooling arrangement utilizes water as the cooling medium and provides a closed-loop flow path through the transmission disc cooling jacket (102AB2) and fixed casing water jacket (203), enabling effective thermal regulation of the scroll assembly; wherein the oiling arrangement (206) comprises an oil injection control unit (208), a solenoid valve (207),and an oil storage tank (210) for automated lubrication of the scrolls, tip seals (136, 236), and face seals (135, 235) at predefined intervals; wherein the supporting base (130) includes guide mechanisms (129 A2, 129B2) and guide shims (129A1, 129B1) to enable precise sliding and positioning of the fixed casing (201) relative to the supporting base (130), facilitating access to internal components for maintenance or assembly; wherein the balancing weights (117A1, 117B2) are dynamically arranged on the synchronized shafts (115A, 115B) to counteract centrifugal forces generated during the orbiting motion of the scrolls (102, 202), thereby minimizing vibration and improving the operational stability of the pump; wherein the bearings (105A, 105B; 108A, 108B) housed in the bearing hubs (106A, 106B) are selected from ball bearings, roller bearings, spherical roller bearings, needle bearings, taper roller bearings, or bushes, based on the specific application requirements for the pump's operational environment; wherein the transmission casing (101) and fixed casing (201) include guide structures (102A, 102B) for precise alignment and support, ensuring the proper positioning of the scroll assembly and minimizing mechanical stress during operation.

[0112] In yet another object of the invention, a scroll pump cooling arrangement comprising: i. a transmission disc cooling jacket (102AB2) configured to encase at least a portion of the orbiting scroll (102); ii. a water inlet (102AB3) and a water outlet (102AB4) operatively connected to the cooling jacket; iii. a fixed casing water jacket (203) in thermal communication with the fixed scroll (202); and iv. a flow path between the transmission disc cooling jacket and the fixed casing water jacket, wherein the arrangement enables circulation of a liquid cooling medium to regulate the temperature of both the orbiting and fixed scrolls during operation, thereby preventing thermal distortion and improving efficiency of the pump.

[0113] In yet another object of the invention, a reverse rotation protection mechanism for a scroll vacuum pump, comprising: i. a clutch bearing (128) operatively integrated within a synchronization assembly configured to drive an orbiting scroll (102); ii. the clutch bearing arranged to permit rotational motion in a first direction and prevent motion in a reverse direction, wherein reverse torque resulting from sudden pressure changes or flow reversal is absorbed or blocked by the clutch bearing to prevent damage to the scroll mechanism and associated drive components; iii. the clutch bearing (128) mounted on a pulley shaft or gear hub within the synchronization arrangement; iv. the synchronization assembly includes one or more synchronization belts (125), drive belts (126), or gears connected to the scroll shaft (115A, 115B).

[0114] In yet an other object of the invention, a high-capacity scroll vacuum pump comprising: i. a transmission casing (101); ii. a fixed casing (201); iii. a scroll assembly including an orbiting scroll (102) and a fixed scroll (202); iv. a pair of synchronized crank shafts (115A, 115B), each having an eccentric portion of similar eccentricity configured to drive the orbiting scroll in an orbital motion relative to the fixed scroll; v. a synchronization arrangement comprising at least one synchronization belt (125), one drive belt (126), and optionally one or more of: a timing belt, gear, chain, or synchronized motor, to ensure synchronized rotation of the shafts; vi. a plurality of bearing hubs (106A, 106B) mounted over the synchronized crank shafts (115A and 115B); vii. a plurality of bearings (105A, 105B; 108A, 108B) housed within the bearing hubs to support the shafts; viii. a plurality of balancing weights (117A1, 117B2) mounted on the shafts to compensate eccentric loading during orbiting motion; ix. a cooling arrangement comprising a orbiting disc cooling jacket (102AB2), a water inlet (102AB3), a water outlet (102AB4), and a fixed casing water jacket (203) for circulating a cooling medium to regulate the temperature of the scroll assembly; x. an oiling arrangement (206) for lubricating the scroll components and seals at predefined intervals; xi. a plurality of sealing elements including oil seals (123A, 123B), tip seals (136, 236), and face seals (135, 235); xii. a suction port configured such that vapor or foreign material entering through the suction impinges on a rear surface of the orbiting scroll (102); xiii. an exhaust port positioned centrally within the fixed scroll (202); xiv. a supporting base (130) adapted to support the fixed casing (201) in a slidable configuration and to mount the transmission casing (101); and xv. a reverse rotation arrangement (128) operatively coupled to the synchronization arrangement to prevent reverse rotation of the orbiting scroll (102), wherein the tip seals (136, 236) are disposed in grooves formed in the scrolls, and the face seals (135, 235) rest between opposing surfaces of the orbiting and fixed scrolls to prevent leakage during operation.

[0115] In yet another object of the invention, the high-capacity scroll vacuum pump comprises: a transmission casing (101); a fixed casing (201); a scroll assembly having a fixed scroll (202) and an orbiting scroll (102); a plurality of synchronized shafts (115A, 115B); a plurality of bearing hubs (106A, 106B); a plurality of bearings (105A, 105B; 108A, 108B); a plurality of pulleys (124A, 124B); a synchronization arrangement comprising synchronization belts (125), drive belts (126), chains, gears, or a synchronized motor; a driving energy source (131); a supporting base (130); a plurality of balancingweights (117A1, 117B2); a cooling arrangement (102D, 203); a plurality of oil seals (123A, 123B); a plurality of tip seals (136, 236); a plurality of face seals (135, 235); an oiling arrangement (206); a suction and an exhaust, wherein the suction is such that vapor or any foreign material entering through it reaches a back surface of the orbiting scroll (102) and the exhaust of the high-capacity vacuum pump is at the center of the fixed scroll (202).Wherein:• The cooling arrangement, comprising components like transmission disc cooling jacket (102AB2), water inlet (102AB3), water outlet (102AB4), and fixed casing water jacket (203), is for cooling the scrolls using a cooling medium, preferably water.• The supporting base (130) provides structural support and enables the fixed casing (201) to slide, allowing access to the scroll pump interior. The transmission casing(101) is mounted on this base.• The oiling arrangement (206) oils the scrolls (102, 202), tip seals (136, 236), and face seals (135, 235) at predefined intervals using a lubricating medium.• The synchronized shafts (115A, 115B) include an eccentric portion and a concentric portion; they function as cantilever eccentric shafts and are synchronized via the synchronization arrangement (125, 126).• The bearing hubs (106A, 106B) house two bearings (105A, 105B; 108A, 108B) each, which may be ball bearings, roller bearings, spherical roller bearings, needle bearings, taper roller bearings, or bushes.• The balancing weights (117A1, 117B2) are mounted on the shafts (115A, 115B) to balance the eccentric loads during the orbiting motion of the scroll.• The transmission casing (101) maintains a predefined distance from the orbiting scroll(102).• The transmission casing (101) and the fixed casing (201) are equipped with a plurality of guides (102A, 102B; 129 A2, 129B2) on their periphery for alignment.• The face seals (135, 235) rest between the orbiting scroll (102) and fixed scroll (202) to prevent leaks.• The tip seals (136, 236) are inserted into grooves in both scrolls for effective sealing.• A reverse rotation arrangement (128), including a clutch bearing, is attached to the synchronization system to prevent reverse rotation of the orbiting scroll (102).

[0116] The corresponding structures, materials, acts, and equivalents of all means or step plus function elements in the claims below are intended to include any structure, material, or act for performing the function in combination with other claimed elements as specifically claimed. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprising", “including” and / or "having" and other conjugations of these terms, when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0117] The terminology used herein should not be understood as limiting, unless otherwise specified, and is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosed subject matter. While certain embodiments of the disclosed subject matter have been illustrated and described, it will be clear that the disclosure is not limited to the embodiments described herein. Numerous modifications, changes, variations, substitutions and equivalents are not precluded.

[0118] The above description does not provide specific details of the manufacture or design of the various components. Those of skill in the art are familiar with such details, and unless departures from those techniques are set out, techniques, known, related art or later developed designs and materials should be employed. Those in the art are capable of choosing suitable manufacturing and design details.

[0119] Further, the terminology used herein is for describing particular embodiments only and is not intended to be limiting of the disclosure. It will be appreciated that several of the above-disclosed and other features and functions, or alternatives thereof, may be combined into other systems or applications. Various presently unforeseen or unanticipated alternatives, modifications, variations, or improvements therein may subsequently be made by those skilled in the art without departing from the scope of the present disclosure as encompassed by the following claims.

[0120] The claims, as originally presented and as they may be amended, encompass variations, alternatives, modifications, improvements, equivalents, and substantial equivalents of the embodiments and teachings disclosed herein, including those that are presently unforeseen or unappreciated, and that, for example, may arise from applicants / patentees and others.

[0121] It will be appreciated that variants of the above-disclosed and other features and functions, or alternatives thereof, may be combined into many other different systems or applications. Various presently unforeseen or unanticipated alternatives, modifications, variations, or improvements therein may be subsequently made by those skilled in the art, which are also intended to be encompassed by the following claims.The detailed description below outlines the components and their arrangement to achieve these objectives.

[0122] Advantages of the Present Subject MatterThe high-capacity vacuum scroll pump proposed in the present subject matter offers several notable advantages, particularly in terms of functionality, repairability, and performance. These advantages are attributed to the innovative design and various specialized features integrated into the pump:1. Versatility in Fluid Handling: The high-capacity scroll pump is designed to handle a wide range of fluids, both lubricating and non-lubricating. This is made possible through the use of braided tip / lip seals between the fixed and moving scrolls. These seals provide excellent sealing performance and allow the pump to function efficiently with various types of fluids, ensuring reliable performance across different applications.2. Ease of Repair and Maintenance: The larger size of the scrolls, while contributing to the pump's high capacity, can pose challenges during repair or maintenance tasks. However, this issue is addressed by the innovative design that incorporates handles and structures on the outer bodies of the fixed box and transmission box. These allow the fixed box to slide away from the transmission box easily. The sliding mechanism is facilitated by guide rails beneath the pump, which enable smooth movement. The process can be performed by a single person, significantly reducing the complexity of repairs. Furthermore, once maintenance is complete, the fixed box can be slid back toward the transmission box with precision, ensuring that alignment is restored without error.3. Reduced Friction and High Efficiency: The high-capacity scroll pump is equipped with a series of taper roller bearings to support the crank / drive shafts at their ends, which extend through the transmission box. These bearings ensure smooth, friction- free operation of the pump, significantly reducing wear and tear. The frictionless operation is crucial for achieving the high capacity, with the pump being capable of handling loads approximately 1000 times larger than traditional scroll pumps, ensuring long-term operational efficiency and reliability.4. Durability of Seals: The braided tip / lip seal used in the high-capacity scroll pump is a critical component that contributes to the longevity and reliability of the pump. These seals are specifically engineered to withstand harsh operating conditions, offering a service life of up to six months. The high-quality construction of these seals ensures they maintain their effectiveness over extended periods, minimizing the need for frequent replacements and ensuring consistent performance.5. Enhanced Cooling System: The pump incorporates an advanced cooling system to manage heat generation during operation. Water jackets are integrated into the fixed box of the scroll pump, providing an efficient method for dissipating heat. This cooling arrangement is crucial for maintaining optimal operating temperatures, ensuring that the pump operates within safe thermal limits, even under high-capacity conditions.6. External Cooling Capability: The cooling system of the high-capacity scroll pump can be supplemented by an external refrigeration system or forced cooling system. This flexibility allows the cooling process to be tailored to the specific requirements of the application, ensuring the pump operates efficiently across different environmental conditions and operational loads.7. Leak-Proof and Detachable Cooling System: The cooling system fitted to the fixed scroll pump is detachably connected to the high-capacity scroll pump. This design ensures that the cooling system can be easily removed for maintenance or replacement. Additionally, the connection is properly sealed to prevent any leakage of the cooling medium into the fluid being processed by the pump. This feature ensures that the cooling system remains isolated from the high-pressure fluid within the pump, maintaining both the integrity of the cooling system and the purity of the pumped fluid.These advantages combine to make the high-capacity vacuum scroll pump a robust, reliable, and highly efficient solution for handling large volumes of various fluids, all while ensuring ease of maintenance, reduced friction, enhanced durability, and a flexible cooling system for optimal performance.

Claims

aim:

1. A high-capacity scroll vacuum pump comprising: i. a transmission casing (101); ii. a fixed casing (201); iii. a scroll assembly including an orbiting scroll (102) and a fixed scroll (202); iv. a pair of synchronized crank shafts (115A, 115B), each having an eccentric portion of similar eccentricity configured to drive the orbiting scroll in an orbital motion relative to the fixed scroll; v. a synchronization arrangement comprising at least one synchronization belt (125), one drive belt (126), and optionally one or more of: a timing belt, gear, chain, or synchronized motor, to ensure synchronized rotation of the shafts; vi. a plurality of bearing hubs (106A, 106B) mounted over the synchronized crank shafts (115A and 115B); vii. a plurality of bearings (105A, 105B; 108A, 108B) housed within the bearing hubs to support the shafts; viii. a plurality of balancing weights (117A1, 117B2) mounted on the shafts to compensate eccentric loading during orbiting motion; ix. a cooling arrangement comprising a orbiting disc cooling jacket (102AB2), a water inlet (102AB3), a water outlet (102AB4), and a fixed casing water jacket (203) for circulating a cooling medium to regulate the temperature of the scroll assembly; x. an oiling arrangement (206) for lubricating the scroll components and seals at predefined intervals; xi. a plurality of sealing elements including oil seals (123A, 123B), tip seals (136, 236), and face seals (135, 235); xii. a suction port configured such that vapor or foreign material entering through the suction impinges on a rear surface of the orbiting scroll (102); xiii. an exhaust port positioned centrally within the fixed scroll (202); xiv. a supporting base (130) adapted to support the fixed casing (201) in a slidable configuration and to mount the transmission casing (101); and xv. a reverse rotation arrangement (128) operatively coupled to the synchronization arrangement to prevent reverse rotation of the orbiting scroll (102), wherein the tip seals (136, 236) are disposed in grooves formed in the scrolls, and the face seals (135,235) rest between opposing surfaces of the orbiting and fixed scrolls to prevent leakage during operation.

2. The high-capacity scroll vacuum pump as claimed in claim 1, wherein the reverse rotation arrangement (128) comprises a clutch bearing configured to allow unidirectional motion of the orbiting scroll (102) and prevent reverse motion caused by sudden power failure or rotate reversals.

3. The high-capacity scroll vacuum pump as claimed in claim 1, wherein the cooling arrangement utilizes water as the cooling medium and provides a closed-loop flow path through the transmission disc cooling jacket (102AB2) and fixed casing water jacket (203), enabling effective thermal regulation of the scroll assembly.

4. The high-capacity scroll vacuum pump as claimed in claim 1, wherein the lubricating arrangement (206) comprises an oil injection control unit (208), a solenoid valve (207), and an oil storage tank (210) for automated lubrication of the scrolls, tip seals (136, 236), and face seals (135, 235) at predefined intervals.

5. The high-capacity scroll vacuum pump as claimed in claim 1, wherein the supporting base (130) includes guide mechanisms (129 A2, 129B2) and guide shims (129A1, 129B1) to enable precise sliding and positioning of the fixed casing (201) relative to the supporting base (130), facilitating access to internal components for maintenance or assembly.

7. The high-capacity scroll vacuum pump as claimed in claim 1, wherein the balancing weights (117A1, 117B2) are dynamically arranged on the synchronized shafts (115A, 115B) to counteract centrifugal forces generated during the orbiting motion of the scrolls (102, 202), thereby minimizing vibration and improving the operational stability of the pump.

8. The high-capacity scroll vacuum pump as claimed in claim 1, wherein the bearings (105A, 105B; 108A, 108B) housed in the bearing hubs (106A, 106B) are selected from ball bearings, roller bearings, spherical roller bearings, needle bearings, taper roller bearings, or bushes, based on the specific application requirements for the pump's operational environment.

8. The high-capacity scroll vacuum pump as claimed in claim 1, wherein the transmission casing (101) and fixed casing (201) include guide structures (102A,102B) for precise alignment and support, ensuring the proper positioning of the scroll assembly and minimizing mechanical stress during operation.

9. A scroll pump cooling arrangement comprising: i. a transmission disc cooling jacket (102AB2) configured to encase at least a portion of the orbiting scroll (102); ii. a water inlet (102AB3) and a water outlet (102AB4) operatively connected to the cooling jacket; iii. a fixed casing water jacket (203) in thermal communication with the fixed scroll (202); and iv. a flow path between the transmission disc cooling jacket and the fixed casing water jacket, wherein the arrangement enables circulation of a liquid cooling medium to regulate the temperature of both the orbiting and fixed scrolls during operation, thereby preventing thermal distortion and improving efficiency of the pump.

10. A reverse rotation protection mechanism for a scroll vacuum pump, comprising: i. a clutch bearing (128) operatively integrated within a synchronization assembly configured to drive an orbiting scroll (102); ii. the clutch bearing arranged to permit rotational motion in a first direction and prevent motion in a reverse direction, wherein reverse torque resulting from sudden pressure changes or flow reversal is absorbed or blocked by the clutch bearing to prevent damage to the scroll mechanism and associated drive components; iii. the clutch bearing (128) mounted on a pulley shaft or gear hub within the synchronization arrangement; iv. the synchronization assembly includes one or more synchronization belts (125), drive belts (126), synchronous motor or gears connected to the scroll shafts (115A, 115B).

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