Six-cylinder aero-engine with heat insulation belt positioning oil nozzle frame

Abstract

The invention relates to the technical field of engines, and discloses a six-cylinder aero-engine with a heat insulation belt positioning oil nozzle frame, the six-cylinder aero-engine comprises an engine body and a mounting seat mounted on the engine body, the mounting seat is provided with a positioning mechanism, the positioning mechanism is used for fixing a pipeline, and the positioning mechanism is used for positioning the pipeline. Accurate positioning and reliable fixing of the oil injection pipeline are achieved, and manual assembly errors are eliminated; through the design of the sliding clamping structure and the heat insulation cavity, the influence of thermal stress in a high-temperature environment is effectively relieved; the distributed clamping node layout adapts to the compact space requirement of the six-cylinder engine, the spraying angle consistency of all the oil nozzles is ensured, stable sliding adjustment between a second positioning ring block and a first positioning ring block is achieved, connection looseness caused by engine vibration is effectively restrained through constraint of the contact face of a second fixing block and a connecting rod, and the reliability of the engine is improved. And the precise injection angle of the oil nozzle can still be kept under the high-temperature and high-pressure working conditions.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engines, in particular to a six-cylinder aero-engine with a heat-insulating band positioning fuel nozzle rack. BACKGROUND

[0002] Aero-engines are the core power systems in modern aviation, encompassing a wide range of technical and design innovations, from turbine engines to piston engines, each serving different tasks. In the research and application of aviation piston engines, the fuel injection system, as a key link in power generation, plays a crucial role. Six-cylinder aviation piston engines are widely used in small aircraft and civil aviation fields, and the fuel nozzle rack, as part of the system, is responsible for providing fuel injection support for each cylinder of the engine. In the design of these fuel injection systems, the fuel nozzle rack not only needs to precisely position the injection angle of each fuel nozzle, but also needs to ensure that the entire system can withstand the thermal stress in the high-temperature environment of the engine, thereby ensuring the efficiency of fuel injection and the stability of engine performance.

[0003] In traditional six-cylinder aviation piston engine fuel injection systems, the installation of the fuel nozzle rack relies on manual operation, and the installer needs to adjust the fuel nozzle to the specified angle based on experience and markings. Although this method can ensure the installation of the fuel nozzle to a certain extent, due to human factors, different workers or different batches of assembly may result in inconsistent angles of the fuel nozzle, affecting the fuel injection effect, and further affecting the combustion efficiency and running stability of the engine. In addition, if the installation position and angle of the fuel nozzle rack are not precisely controlled, it may cause interference between the fuel nozzle and other components, or even overheating or fuel boiling.

[0004] Therefore, we propose a six-cylinder aero-engine with a heat-insulating band positioning fuel nozzle rack to solve the above-mentioned problems. SUMMARY

[0005] The present application aims to provide a six-cylinder aero-engine with a heat-insulating band positioning fuel nozzle rack to solve the problem of human factors affecting the consistency of the angle of the fuel nozzle, thereby affecting the fuel injection effect and further affecting the combustion efficiency and running stability of the engine.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a six-cylinder aero-engine with a heat-insulating band positioning fuel nozzle rack, comprising an engine body and a mounting seat mounted on the engine body, a positioning mechanism is provided on the mounting seat, and the positioning mechanism is used to fix the pipeline; The positioning mechanism includes a first positioning ring block disposed on the mounting base, a second positioning ring block disposed on one side of the first positioning ring block, and a plurality of second positioning ring blocks disposed therein, and an abutment ring block is slidably disposed within each plurality of second positioning ring blocks, the abutment ring block being used to clamp the pipe.

[0007] Preferably, the mounting base is further provided with a connecting mechanism, and the second positioning ring block is slidably disposed on one side of the first positioning ring block through the connecting mechanism; The connecting mechanism includes a first fixing block disposed on the mounting base, a second fixing block adapted to the first fixing block disposed on the second positioning ring block, a connecting rod disposed on the first fixing block, and the second fixing block slidably disposed on the connecting rod.

[0008] Preferably, a moving mechanism is also provided inside the second positioning ring block, and the abutting ring block is slidably disposed inside the second positioning ring block through the moving mechanism; The moving mechanism includes a sliding groove formed in the second positioning ring block, and a sliding block adapted to the sliding groove is provided on the abutting ring block. A return spring is also provided on the sliding block, and the sliding block is elastically connected to the second positioning ring block through the return spring.

[0009] Preferably, the moving mechanism further includes a positioning rod disposed in the sliding groove, the second fixing block is slidably disposed on the positioning rod, and the return spring is sleeved on the outside of the positioning rod.

[0010] Preferably, the second positioning ring block is further provided with a heat dissipation mechanism, which is used to assist in heat dissipation of the contact ring block; The heat dissipation mechanism includes a guide groove formed on the second positioning ring block, and a heat dissipation rod adapted to the guide groove is provided on the abutting ring block. The heat dissipation rod is slidably disposed in the guide groove and passes through the guide groove to the outside of the second positioning ring block.

[0011] Preferably, the second positioning ring block is further provided with an assembly mechanism, which is used to assemble the second positioning ring block and the first positioning ring block; The assembly mechanism includes a through slide on the second positioning ring block, and an insert rod adapted to the through slide on the abutting ring block. The insert rod passes through the through slide to the outside of the second positioning ring block. A slot adapted to the insert rod is provided on the first positioning ring block, and the insert rod is inserted into the slot.

[0012] Preferably, the insertion rod is further provided with a limiting mechanism, which is used to fix the insertion rod into the slot; The locking and limiting mechanism includes a placement groove on the insertion rod, a magnetic insertion block is provided in the placement groove, and a magnetic groove adapted to the magnetic insertion block is provided in the first positioning ring block, and the magnetic insertion block is inserted into the magnetic groove.

[0013] Preferably, the insertion rod is further provided with a mating mechanism, which is used to assist the magnetic insertion block in being inserted into the magnetic groove; The cooperating mechanism includes a telescopic rod disposed in the through slide, one end of the telescopic rod being connected to the insert rod, and the other end of the telescopic rod being connected to the magnetic insert block; An auxiliary spring is also provided at the bottom of the magnetic plug. The magnetic plug is elastically connected to the plug rod through the auxiliary spring, and the auxiliary spring is sleeved on the outside of the telescopic rod.

[0014] The beneficial effects of this invention are: 1. This application achieves precise positioning and reliable fixation of the fuel injection pipe, eliminating manual assembly errors; through the sliding clamping structure and heat insulation cavity design, it effectively alleviates the thermal stress effect under high temperature environment; the distributed clamping node layout adapts to the compact space requirements of a six-cylinder engine, ensuring the consistency of the injection angle of each fuel injector.

[0015] 2. This application achieves stable sliding adjustment between the second positioning ring block and the first positioning ring block. During the assembly of the fuel injector bracket, the operator can push the second positioning ring block along the connecting rod to the target position. The guiding effect of the connecting rod automatically corrects the movement path, avoiding angle deviations that may occur during manual adjustment. The contact surface constraint between the second fixing block and the connecting rod effectively suppresses connection loosening caused by engine vibration, ensuring that the fuel injector can maintain a precise injection angle under high temperature and high pressure conditions. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a rear view schematic diagram of the overall structure of the present invention.

[0018] Figure 3 This is a front view of the present invention.

[0019] Figure 4 for Figure 3 Sectional view at point AA.

[0020] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0021] Figure 6 This is a side view of the present invention.

[0022] Figure 7 for Figure 6 Sectional view at point BB.

[0023] Figure 8 This is a top-view sectional view of the present invention.

[0024] Figure 9 for Figure 8 A magnified view of a section at point C.

[0025] In the diagram: 1. Mounting base; 2. Positioning mechanism; 21. First positioning ring block; 22. Second positioning ring block; 23. Abutting ring block; 3. Connecting mechanism; 31. First fixing block; 32. Second fixing block; 33. Connecting rod; 4. Moving mechanism; 41. Sliding groove; 42. Sliding block; 43. Positioning rod; 44. Return spring; 5. Heat dissipation mechanism; 51. Guide groove; 52. Heat dissipation rod; 6. Assembly mechanism; 61. Through slide; 62. Insert rod; 63. Slot; 7. Limiting mechanism; 71. Placement groove; 72. Magnetic insert block; 73. Magnetic groove; 8. Matching mechanism; 81. Telescopic rod; 82. Auxiliary spring. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] The terms "first," "second," and "third" in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] Example 1: Please refer to Figures 1-9 A six-cylinder aircraft engine with a heat-insulating positioning fuel injector bracket includes an engine body and a mounting base 1 mounted on the engine body. The mounting base 1 is provided with a positioning mechanism 2, which is used to fix the pipeline. The positioning mechanism 2 includes a first positioning ring block 21 disposed on the mounting base 1, a second positioning ring block 22 disposed on one side of the first positioning ring block 21, and a plurality of second positioning ring blocks 22, each of which has a sliding contact ring block 23 disposed therein, the contact ring block 23 being used to clamp the pipe.

[0030] In this embodiment: In the prior art, the installation of fuel injector mounts for aero engines relies on manual operation, which suffers from insufficient positioning accuracy and the impact of thermal stress on structural stability. Traditional methods involve manually adjusting the injector angle, which is easily affected by differences in operator experience, leading to inconsistent injection angles. Under high-temperature environments, heat conduction between the fuel injector mount and the engine body intensifies, easily causing differences in material expansion, resulting in clamping failure or structural deformation. In the compact layout of a six-cylinder engine, the clearance control between the fuel injection pipe and adjacent components requires strict control, and manual assembly makes it difficult to ensure uniform stress on each node.

[0031] To address the aforementioned issues, a mechanical positioning benchmark is constructed to overcome the insufficient accuracy of manual positioning; an adaptively adjustable clamping structure is designed to address the impact of thermal stress; and distributed clamping nodes are employed to meet the requirements of multi-pipe layouts. This hierarchical positioning structure combines benchmark positioning with dynamic adjustment, utilizes sliding contact surfaces to compensate for thermal expansion deformation, and simultaneously forms an insulating cavity to block heat conduction paths.

[0032] Therefore, this application proposes a six-cylinder aircraft engine including an engine body and a mounting base 1, wherein the mounting base 1 is provided with a positioning mechanism 2. The positioning mechanism 2 includes a first positioning ring block 21 fixed on the mounting base 1, and a plurality of second positioning ring blocks 22 arranged on the side of the first positioning ring block 21. Each second positioning ring block 22 has an abutment ring block 23 slidably installed inside it, and the abutment ring block 23 clamps the pipe.

[0033] Mounting base 1 refers to the support structure that is rigidly connected to the engine body. Specifically, it can be made of cast aluminum alloy base with an anti-oxidation coating on the surface to withstand high temperature environment. Its function is to provide a stable mounting platform for positioning mechanism 2.

[0034] The first positioning ring block 21 refers to an annular component with a central through hole. It can be formed by processing high-temperature alloy steel. The axis of the through hole coincides with the design axis of the engine fuel injection pipe. Its function is to establish a reference positioning surface for pipe installation.

[0035] The second positioning ring block 22 refers to the clamping unit distributed along the circumference. Specifically, it can adopt a split arc-shaped block structure, with the number matching the number of cylinders. Its function is to achieve circumferential constraint of the pipeline through multi-point contact.

[0036] The contact ring 23 refers to a sliding component with an arc-shaped inner wall, which can be made of graphite copper composite material. The inner wall surface is provided with anti-slip texture. Its function is to adjust the clamping force through axial sliding to compensate for pipeline assembly tolerances.

[0037] Mounting base 1 is fixed at a designated position on the engine body, and the first positioning ring block 21 is fastened to the surface of mounting base 1 with bolts. Several second positioning ring blocks 22 are equidistantly distributed circumferentially along the first positioning ring block 21, and each second positioning ring block 22 has a guide rail inside its cavity. Abutment ring blocks 23 move axially via the rails and maintain their initial clamping state under the action of springs. When the fuel injection pipe is inserted into the positioning mechanism 2, the outer wall of the pipe pushes the abutment ring blocks 23 backward along the rails until the clamping forces of each abutment ring block 23 reach equilibrium. An annular gap is maintained between the first positioning ring block 21 and the second positioning ring blocks 22, forming a heat-insulating cavity to block the direct transmission of high engine temperature to the fuel injector holder.

[0038] Traditional manual positioning methods rely on operator experience, while this solution achieves precise benchmark positioning through mechanical positioning ring block 21; traditional rigid clamping structures are prone to stress concentration during thermal expansion, while the sliding contact ring block 23 of this solution can adaptively adjust the clamping position; traditional integral clamping rings are difficult to adapt to multi-pipe layouts, while the distributed second positioning ring block 22 of this solution can independently adjust the force on each clamping point.

[0039] Through the above technical solutions, this application achieves precise positioning and reliable fixation of the fuel injection pipe, eliminating manual assembly errors; through the sliding clamping structure and heat insulation cavity design, the thermal stress effect under high temperature environment is effectively alleviated; the distributed clamping node layout adapts to the compact space requirements of the six-cylinder engine, ensuring the consistency of the injection angle of each fuel injector.

[0040] Example 2: Please refer to Figures 1-9 The mounting base 1 is also provided with a connecting mechanism 3, and the second positioning ring block 22 is slidably set on one side of the first positioning ring block 21 through the connecting mechanism 3; The connecting mechanism 3 includes a first fixing block 31 disposed on the mounting base 1, a second fixing block 32 disposed on the second positioning ring block 22 that is adapted to the first fixing block 31, a connecting rod 33 disposed on the first fixing block 31, and the second fixing block 32 slidably disposed on the connecting rod 33.

[0041] In this embodiment: the present application further proposes that the mounting base 1 is also provided with a connecting mechanism 3, and the second positioning ring block 22 is slidably disposed on one side of the first positioning ring block 21 through the connecting mechanism 3; the connecting mechanism 3 includes a first fixing block 31 disposed on the mounting base 1, a second fixing block 32 adapted to the first fixing block 31 is disposed on the second positioning ring block 22, a connecting rod 33 is also disposed on the first fixing block 31, and the second fixing block 32 is slidably disposed on the connecting rod 33.

[0042] The first fixing block 31 refers to the basic support component fixed on the mounting base 1. Specifically, it can be a metal block with mounting holes, fixed to the mounting base 1 by bolts, and is used to provide an initial positioning reference for the second positioning ring block 22. The second fixing block 32 refers to the mating component set on the second positioning ring block 22. Specifically, it can be a groove structure with a shape complementary to the first fixing block 31, and achieves initial alignment with the first fixing block 31 through mechanical interlocking. The connecting rod 33 refers to the guide component extending along the axial direction. Specifically, it can be a smooth cylindrical metal rod, with both ends fixed to the first fixing block 31 by welding or threaded connection, and is used to constrain the movement trajectory of the second fixing block 32.

[0043] The fitting relationship between the first fixing block 31 and the second fixing block 32 forms an initial positioning reference. When the second positioning ring block 22 needs to be adjusted, the second fixing block 32 slides along the axial direction of the connecting rod 33. The rigid material and linear extension characteristics of the connecting rod 33 ensure that no radial displacement occurs during the sliding process. The inner wall of the second fixing block 32 contacts the outer surface of the connecting rod 33 to form a surface constraint. After the sliding adjustment is completed, the friction between the second fixing block 32 and the connecting rod 33 can maintain the current position and prevent accidental displacement caused by vibration. The integral fixing method of the first fixing block 31 and the mounting base 1 enhances the torsional resistance of the connecting mechanism 3 and can maintain structural stability when subjected to alternating loads during engine operation.

[0044] Traditional fuel injector holders typically use a bolt connection without a guide structure for the second positioning ring block 22. Adjustment requires repeated bolt disassembly and manual alignment, which can easily lead to assembly errors. This solution utilizes the linear guiding effect of the connecting rod 33 to allow the second positioning ring block 22 to move along a preset trajectory without disassembling any parts. Furthermore, the mechanical interlocking design between the first fixing block 31 and the second fixing block 32 eliminates the possibility of manual alignment deviations.

[0045] Through the above technical solution, this application achieves stable sliding adjustment between the second positioning ring block 22 and the first positioning ring block 21. During the assembly of the fuel injector bracket, the operator can push the second positioning ring block 22 along the connecting rod 33 to the target position. The guiding effect of the connecting rod 33 automatically corrects the movement path, avoiding angle deviations that may occur during manual adjustment. The contact surface constraint between the second fixing block 32 and the connecting rod 33 effectively suppresses connection loosening caused by engine vibration, ensuring that the fuel injector can maintain a precise injection angle under high temperature and high pressure conditions.

[0046] Example 3: Please refer to Figures 1-9 The second positioning ring block 22 is also provided with a moving mechanism 4, and the abutting ring block 23 is slidably disposed in the second positioning ring block 22 through the moving mechanism 4; The moving mechanism 4 includes a sliding groove 41 formed in the second positioning ring block 22, a sliding block 42 adapted to the sliding groove 41 is provided on the abutting ring block 23, and a return spring 44 is also provided on the sliding block 42. The sliding block 42 is elastically connected to the second positioning ring block 22 through the return spring 44.

[0047] In this embodiment: the present application further proposes that a moving mechanism 4 is also provided in the second positioning ring block 22, and the abutting ring block 23 is slidably disposed in the second positioning ring block 22 through the moving mechanism 4; the moving mechanism 4 includes a sliding groove 41 opened in the second positioning ring block 22, and a sliding block 42 adapted to the sliding groove 41 is provided on the abutting ring block 23. A return spring 44 is also provided on the sliding block 42, and the sliding block 42 is elastically connected to the second positioning ring block 22 through the return spring 44.

[0048] The sliding groove 41 refers to the guide structure set inside the second positioning ring block 22, which can be implemented as a rectangular groove or a dovetail groove structure, used to limit the movement trajectory of the sliding block 42. The sliding block 42 refers to the protruding part that matches the shape of the sliding groove 41, which can be made of metal or high-temperature resistant composite material, and forms a linear sliding pair by embedding it into the sliding groove 41. The return spring 44 refers to the mechanical element that provides elastic restoring force, which can be implemented as a helical spring or a disc spring, with one end fixedly connected to the sliding block 42 and the other end in contact with the inner wall of the second positioning ring block 22.

[0049] When the pipe is clamped, the contact ring 23, under the action of external force, drives the sliding block 42 to move along the sliding groove 41. At this time, the return spring 44 is compressed, generating a reverse force, so that the clamping force and the outer diameter of the pipe are dynamically balanced. The side wall of the sliding groove 41 constrains the lateral displacement of the sliding block 42, preventing displacement caused by thermal expansion of materials under high temperature conditions. Under vibration conditions, the return spring 44 absorbs impact energy through elastic deformation, keeping the contact ring 23 in contact with the pipe at all times. When the external force is released, the return spring 44 pushes the sliding block 42 back to the initial position, realizing automatic reset.

[0050] Traditional fuel injector holders use a rigid fixed structure, which cannot compensate for dimensional changes caused by thermal expansion, and manual adjustment makes it difficult to achieve precise positioning under dynamic operating conditions. This solution uses the linear guiding cooperation of the sliding groove 41 and the sliding block 42, combined with the elastic buffer of the return spring 44, to enable the clamping mechanism to have self-adjusting capability, maintaining a stable clamping state without manual intervention.

[0051] Through the above technical solution, this application achieves dynamic force balance during pipe clamping, solving the problem of clamping loosening caused by high-temperature expansion and vibration. The cooperation between the sliding groove 41 and the sliding block 42 eliminates human error in traditional assembly, and the elastic characteristics of the return spring 44 effectively suppress the influence of mechanical impact on positioning accuracy, thereby ensuring that the fuel injector always maintains a precise injection angle during engine operation.

[0052] Example 4: Please refer to Figures 1-9 The moving mechanism 4 also includes a positioning rod 43 disposed in the sliding groove 41, a second fixing block 32 slidably disposed on the positioning rod 43, and a return spring 44 sleeved on the outside of the positioning rod 43.

[0053] In this embodiment: the present application further proposes that a moving mechanism 4 is also provided in the second positioning ring block 22, and the abutting ring block 23 is slidably disposed in the second positioning ring block 22 through the moving mechanism 4; the moving mechanism 4 includes a sliding groove 41 opened in the second positioning ring block 22, and a sliding block 42 adapted to the sliding groove 41 is provided on the abutting ring block 23. A return spring 44 is also provided on the sliding block 42, and the sliding block 42 is elastically connected to the second positioning ring block 22 through the return spring 44.

[0054] The sliding groove 41 refers to the guide structure set inside the second positioning ring block 22, which can be implemented as a rectangular groove or a dovetail groove structure, used to limit the movement trajectory of the sliding block 42. The sliding block 42 refers to the protruding part that matches the shape of the sliding groove 41, which can be made of metal or high-temperature resistant composite material, and forms a linear sliding pair by embedding it into the sliding groove 41. The return spring 44 refers to the mechanical element that provides elastic restoring force, which can be implemented as a helical spring or a disc spring, with one end fixedly connected to the sliding block 42 and the other end in contact with the inner wall of the second positioning ring block 22.

[0055] When the pipe is clamped, the contact ring 23, under the action of external force, drives the sliding block 42 to move along the sliding groove 41. At this time, the return spring 44 is compressed, generating a reverse force, so that the clamping force and the outer diameter of the pipe are dynamically balanced. The side wall of the sliding groove 41 constrains the lateral displacement of the sliding block 42, preventing displacement caused by thermal expansion of materials under high temperature conditions. Under vibration conditions, the return spring 44 absorbs impact energy through elastic deformation, keeping the contact ring 23 in contact with the pipe at all times. When the external force is released, the return spring 44 pushes the sliding block 42 back to the initial position, realizing automatic reset.

[0056] Traditional fuel injector holders use a rigid fixed structure, which cannot compensate for dimensional changes caused by thermal expansion, and manual adjustment makes it difficult to achieve precise positioning under dynamic operating conditions. This solution uses the linear guiding cooperation of the sliding groove 41 and the sliding block 42, combined with the elastic buffer of the return spring 44, to enable the clamping mechanism to have self-adjusting capability, maintaining a stable clamping state without manual intervention.

[0057] Through the above technical solution, this application achieves dynamic force balance during pipe clamping, solving the problem of clamping loosening caused by high-temperature expansion and vibration. The cooperation between the sliding groove 41 and the sliding block 42 eliminates human error in traditional assembly, and the elastic characteristics of the return spring 44 effectively suppress the influence of mechanical impact on positioning accuracy, thereby ensuring that the fuel injector always maintains a precise injection angle during engine operation.

[0058] Example 5: Please refer to Figures 1-9 The second positioning ring block 22 is also provided with a heat dissipation mechanism 5, which is used to provide auxiliary heat dissipation for the contact ring block 23. The heat dissipation mechanism 5 includes a guide groove 51 formed on the second positioning ring block 22, and a heat dissipation rod 52 adapted to the guide groove 51 is provided on the abutting ring block 23. The heat dissipation rod 52 is slidably disposed in the guide groove 51 and passes through the guide groove 51 to the outside of the second positioning ring block 22.

[0059] In this embodiment: This application further proposes to provide a heat dissipation mechanism 5 on the second positioning ring block 22. The heat dissipation mechanism 5 is used to assist in heat dissipation of the contact ring block 23. The heat dissipation mechanism 5 includes a guide groove 51 opened on the second positioning ring block 22. A heat dissipation rod 52 adapted to the guide groove 51 is provided on the contact ring block 23. The heat dissipation rod 52 is slidably disposed in the guide groove 51 and passes through the guide groove 51 to the outside of the second positioning ring block 22.

[0060] The heat dissipation mechanism 5 refers to a device that establishes a directional heat conduction path through a physical structure. Specifically, it can be implemented by combining a metal rod with a heat dissipation channel. Its function is to directly conduct the heat generated by the contact pipe to the external environment.

[0061] The guide groove 51 refers to the linear channel opened on the second positioning ring block 22. Specifically, it can be realized by a groove structure formed by machining. Its function is to constrain the movement trajectory of the heat dissipation rod 52 and maintain its contact area with the ring block 22.

[0062] The heat dissipation rod 52 is a heat-conducting component connected to the contact ring 23. It can be made of copper alloy or aluminum alloy. Its function is to conduct the heat of the contact ring 23 to the external space through the rod.

[0063] When the pipe is clamped by the contact ring 23, the heat generated at the contact surface is transferred to the outside of the second positioning ring 22 via the heat dissipation rod 52 along the guide groove 51. As the heat dissipation rod 52 slides within the guide groove 51, the groove wall provides continuous contact support to the rod, ensuring the stability of the heat conduction path. The portion of the heat dissipation rod 52 that penetrates the outside of the ring 22 is exposed to the air, dissipating heat through natural convection or forced air cooling. The geometry of the guide groove 51 restricts the movement of the heat dissipation rod 52 to a preset direction, preventing a reduction in contact area due to displacement deviation, thereby maintaining heat dissipation efficiency.

[0064] Traditional fuel injector holder positioning mechanisms lack directional heat dissipation channels, relying solely on the material's own heat conduction or passive heat dissipation, leading to heat accumulation at the clamping area. This solution actively extends the heat conduction path, separating the heat source from the heat dissipation surface. This achieves efficient heat dissipation while maintaining the adjustability of the positioning mechanism 2, solving the problem of metal expansion and deformation caused by localized overheating in traditional structures.

[0065] Through the above technical solution, this application effectively reduces the peak temperature of the contact ring 23 under high-temperature conditions, avoiding fluctuations in clamping force or positioning misalignment due to thermal expansion. Heat is quickly dissipated through the heat dissipation rod 52, reducing the impact on the accuracy of the fuel injector angle adjustment, thereby ensuring the stability of fuel injection and engine operating efficiency.

[0066] Example 6: Please refer to Figures 1-9The second positioning ring block 22 is also provided with an assembly mechanism 6, which is used to assemble the second positioning ring block 22 and the first positioning ring block 21. The assembly mechanism 6 includes a through slide 61 formed on the second positioning ring block 22, and an insert rod 62 adapted to the through slide 61 is provided on the abutting ring block 23. The insert rod 62 passes through the through slide 61 to the outside of the second positioning ring block 22. A slot 63 adapted to the insert rod 62 is formed on the first positioning ring block 21, and the insert rod 62 is inserted into the slot 63.

[0067] In this embodiment: the present application further proposes a through slide 61 opened on the second positioning ring block 22, and an insertion rod 62 adapted to the through slide 61 is provided on the abutting ring block 23. The insertion rod 62 passes through the through slide 61 to the outside of the second positioning ring block 22. A slot 63 adapted to the insertion rod 62 is opened on the first positioning ring block 21, and the insertion rod 62 is inserted into the slot 63.

[0068] The through slide 61 refers to a straight channel set on the second positioning ring block 22. Specifically, it can be realized by a through hole structure formed by machining. Its function is to provide a linear movement path for the insertion rod 62 and ensure that the insertion rod 62 moves in a predetermined direction.

[0069] The insert rod 62 refers to the columnar positioning element set on the abutting ring block 23. Specifically, it can be implemented by a metal rod or a composite material rod. Its function is to form a rigid connection with the slot 63 and limit the displacement of the second positioning ring block 22 relative to the first positioning ring block 21.

[0070] The slot 63 refers to the recess formed on the first positioning ring block 21. Specifically, it can be implemented by using a blind hole structure that matches the cross-sectional shape of the insertion rod 62. Its function is to provide a precise receiving space for the insertion rod 62 and to achieve assembly positioning through geometric constraints.

[0071] As the second positioning ring block 22 approaches the first positioning ring block 21, the insertion rod 62 moves in a straight line under the guidance of the through slide 61. After the end of the insertion rod 62 passes through the outside of the second positioning ring block 22, it is directly inserted into the slot 63 of the first positioning ring block 21. The depth and position of the slot 63 are preset according to the assembly accuracy requirements, so that when the insertion rod 62 is fully inserted, the relative positions of the second positioning ring block 22 and the first positioning ring block 21 are automatically aligned. The contact surface between the insertion rod 62 and the slot 63 forms a surface constraint, eliminating angular deviations that may occur during manual adjustment. The design of the insertion rod 62 passing through the second positioning ring block 22 allows the assembly status to be verified in real time by visual inspection or sensor detection of the position of the end of the insertion rod 62.

[0072] Example 7: Please refer to Figures 1-9The insertion rod 62 is also provided with a limiting mechanism 7, which is used to fix the insertion rod 62 into the slot 63; The locking and limiting mechanism 7 includes a placement groove 71 on the insertion rod 62, a magnetic insertion block 72 is provided in the placement groove 71, and a magnetic groove 73 adapted to the magnetic insertion block 72 is provided in the first positioning ring block 21, and the magnetic insertion block 72 is inserted into the magnetic groove 73.

[0073] In this embodiment: This application further proposes to provide a limiting mechanism 7 in the insertion rod 62. The limiting mechanism 7 includes a placement groove 71 opened on the insertion rod 62, a magnetic insertion block 72 is provided in the placement groove 71, and a magnetic groove 73 adapted to the magnetic insertion block 72 is opened in the first positioning ring block 21. The magnetic insertion block 72 is inserted into the magnetic groove 73.

[0074] The placement groove 71 refers to the recessed structure inside the insertion rod 62 used to accommodate the magnetic insertion block 72. It can be formed by machining or casting, and its depth and shape match the magnetic insertion block 72 to limit its range of motion. The magnetic insertion block 72 is a magnetic metal block, specifically a neodymium iron boron magnet or an alnico magnet, which attracts the magnetic groove 73 through magnetic force. The magnetic groove 73 is a recessed structure formed on the inner surface of the first positioning ring block 21, made of magnetic material or with embedded magnetic components, used to magnetically engage with the magnetic insertion block 72.

[0075] When the insertion rod 62 is inserted into the slot 63, the magnetic insertion block 72 is attracted into the magnetic groove 73 under the action of magnetism, forming a dual locking of physical engagement and magnetic attraction. The magnetic insertion block 72 can move axially along the insertion rod 62 within the placement slot 71. During insertion, the magnetic force guides the insertion block 72 to automatically align with the position of the groove 73. The depth of the magnetic groove 73 is greater than the thickness of the insertion block 72, ensuring that the insertion block 72 forms surface contact with the inner wall of the groove 73 after insertion, preventing detachment due to vibration. The fixing of the insertion rod 62 and the slot 63 is achieved through a combination of magnetic attraction and mechanical engagement, requiring no manual intervention for locking.

[0076] Traditional plug-in structures often rely on threaded fastening or elastic clips, which pose a risk of loosening and are cumbersome to install and remove. For example, threaded connections are prone to preload failure due to thermal expansion at high temperatures, and elastic clips are susceptible to plastic deformation after prolonged use. This solution combines magnetic attraction with mechanical interlocking, achieving self-alignment and self-locking functions while ensuring connection strength. Furthermore, the magnetic attraction is unaffected by temperature changes, adapting to the thermal cycling conditions during engine operation.

[0077] Through the above technical solution, this application solves the problem of unstable fixing between the insert rod 62 and the slot 63, avoiding loosening caused by mechanical vibration or thermal expansion. The magnetic attraction and mechanical engagement form redundant fixing, ensuring the reliability of the fuel injector holder assembly. The self-aligning characteristic of the magnetic insert 72 reduces the assembly accuracy requirements, while the auxiliary spring 82 can compensate for dimensional deviations during the insertion process, improving assembly efficiency. Fixing the insert rod 62 and slot 63 requires no additional tools, simplifying the maintenance process.

[0078] Example 8: Please refer to Figures 1-9 The insertion rod 62 is also provided with a mating mechanism 8, which is used to assist the magnetic insertion block 72 in being inserted into the magnetic groove 73. The cooperating mechanism 8 includes a telescopic rod 81 disposed in the through slide 61, one end of the telescopic rod 81 being connected to the insert rod 62, and the other end of the telescopic rod 81 being connected to the magnetic insert block 72; The bottom of the magnetic plug 72 is also provided with an auxiliary spring 82. The magnetic plug 72 is elastically connected to the plug rod 62 through the auxiliary spring 82. The auxiliary spring 82 is sleeved on the outside of the telescopic rod 81.

[0079] In this embodiment: the present application further proposes that the insertion rod 62 is also provided with a mating mechanism 8, which is used to assist the magnetic insertion block 72 in being inserted into the magnetic groove 73; the mating mechanism 8 includes a telescopic rod 81 provided in the through slide 61, one end of the telescopic rod 81 is connected to the insertion rod 62, and the other end of the telescopic rod 81 is connected to the magnetic insertion block 72; an auxiliary spring 82 is also provided at the bottom of the magnetic insertion block 72, and the magnetic insertion block 72 is elastically connected to the insertion rod 62 through the auxiliary spring 82, and the auxiliary spring 82 is sleeved on the outside of the telescopic rod 81.

[0080] The coordination mechanism 8 refers to a device that achieves coordinated movement between components through mechanical linkage. Specifically, it can be implemented using a combination of rigid connectors and elastic elements to synchronously control the displacement trajectory of the magnetic plug 72 and the plug rod 62.

[0081] The telescopic rod 81 refers to a rigid connecting rod that can extend and retract axially. Specifically, it can be implemented using a sleeve-type sliding pair structure. Its two ends are respectively hinged to the insertion rod 62 and the magnetic insertion block 72, which is used to convert the linear motion of the insertion rod 62 into the directional movement of the magnetic insertion block 72.

[0082] The auxiliary spring 82 is a mechanical element that provides elastic preload. Specifically, it can be implemented using a helical compression spring. It is sleeved on the outside of the telescopic rod 81 to limit the radial deformation of the spring and absorb assembly impact and maintain contact pressure through elastic deformation.

[0083] As the insertion rod 62 moves along the through slide 61 towards the slot 63, the telescopic rod 81 drives the magnetic insertion block 72 to move synchronously. During the insertion of the insertion rod 62, if there is a positional deviation between the magnetic insertion block 72 and the magnetic groove 73, the auxiliary spring 82 absorbs the impact energy through compression deformation, preventing damage to the components due to rigid collision. The guiding effect of the telescopic rod 81 constrains the movement path of the magnetic insertion block 72, ensuring that it is always aligned with the insertion direction of the magnetic groove 73. When the insertion rod 62 is fully inserted into the slot 63, the restoring force of the auxiliary spring 82 pushes the magnetic insertion block 72 to fully embed into the magnetic groove 73, forming a stable magnetic connection.

[0084] Traditional plug-in structures lack buffering and guiding devices, and the rigid contact between the plug rod 62 and the slot 63 can easily lead to positioning deviations or component wear. This solution, through the synergistic action of the telescopic rod 81 and the auxiliary spring 82, achieves flexible adjustment during the assembly process while ensuring plug-in accuracy, thus solving the problem of rigid connection structures being sensitive to machining errors.

[0085] Through the above technical solution, this application achieves precise alignment and insertion of the magnetic plug 72 and the magnetic groove 73, effectively avoiding insertion failure caused by assembly deviation. The buffering effect of the auxiliary spring 82 reduces the impact load during the insertion process, preventing the magnetic plug 72 from being deformed by collision and affecting the magnetic attraction effect. The guiding constraint of the telescopic rod 81 ensures the stability of the insertion trajectory, allowing reliable connection to be completed without relying on repeated manual adjustments during the assembly process.

[0086] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0087] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A six-cylinder aircraft engine with a heat-insulating positioning fuel injector bracket, characterized in that: It includes an engine body and a mounting base (1) mounted on the engine body. The mounting base (1) is provided with a positioning mechanism (2) for fixing the pipe. The positioning mechanism (2) includes a first positioning ring block (21) disposed on the mounting base (1), a second positioning ring block (22) disposed on one side of the first positioning ring block (21), and a plurality of second positioning ring blocks (22) are provided, and an abutment ring block (23) is slidably disposed in each of the plurality of second positioning ring blocks (22), and the abutment ring block (23) is used to clamp the pipe.

2. A six-cylinder aircraft engine with a heat-insulating positioning fuel injector bracket according to claim 1, characterized in that: The mounting base (1) is also provided with a connecting mechanism (3), and the second positioning ring block (22) is slidably disposed on one side of the first positioning ring block (21) through the connecting mechanism (3); The connecting mechanism (3) includes a first fixing block (31) disposed on the mounting base (1), a second fixing block (32) adapted to the first fixing block (31) disposed on the second positioning ring block (22), a connecting rod (33) disposed on the first fixing block (31), and the second fixing block (32) slidably disposed on the connecting rod (33).

3. A six-cylinder aircraft engine with a heat-insulating positioning fuel injector bracket according to claim 2, characterized in that: The second positioning ring block (22) is also provided with a moving mechanism (4), and the abutting ring block (23) is slidably disposed in the second positioning ring block (22) through the moving mechanism (4); The moving mechanism (4) includes a sliding groove (41) formed in the second positioning ring block (22), and a sliding block (42) adapted to the sliding groove (41) is provided on the abutting ring block (23). A return spring (44) is also provided on the sliding block (42), and the sliding block (42) is elastically connected to the second positioning ring block (22) through the return spring (44).

4. A six-cylinder aircraft engine with a heat-insulating positioning fuel injector bracket according to claim 3, characterized in that: The moving mechanism (4) further includes a positioning rod (43) disposed in the sliding groove (41), the second fixing block (32) is slidably disposed on the positioning rod (43), and the reset spring (44) is sleeved on the outside of the positioning rod (43).

5. A six-cylinder aircraft engine with a heat-insulating positioning fuel injector bracket according to claim 4, characterized in that: The second positioning ring block (22) is also provided with a heat dissipation mechanism (5), which is used to assist in heat dissipation of the contact ring block (23); The heat dissipation mechanism (5) includes a guide groove (51) formed on the second positioning ring block (22). The abutting ring block (23) is provided with a heat dissipation rod (52) adapted to the guide groove (51). The heat dissipation rod (52) is slidably disposed in the guide groove (51) and passes through the guide groove (51) to the outside of the second positioning ring block (22).

6. A six-cylinder aircraft engine with a heat-insulating positioning fuel injector bracket according to claim 5, characterized in that: The second positioning ring block (22) is also provided with an assembly mechanism (6), which is used to assemble the second positioning ring block (22) and the first positioning ring block (21); The assembly mechanism (6) includes a through slide (61) on the second positioning ring block (22), and an insert rod (62) adapted to the through slide (61) is provided on the abutting ring block (23). The insert rod (62) passes through the through slide (61) to the outside of the second positioning ring block (22). A slot (63) adapted to the insert rod (62) is provided on the first positioning ring block (21), and the insert rod (62) is inserted into the slot (63).

7. A six-cylinder aircraft engine with a heat-insulating positioning fuel injector bracket according to claim 6, characterized in that: The insertion rod (62) is also provided with a limiting mechanism (7), which is used to fix the insertion rod (62) into the slot (63); The locking and limiting mechanism (7) includes a placement groove (71) opened on the insertion rod (62), a magnetic insertion block (72) is provided in the placement groove (71), and a magnetic groove (73) adapted to the magnetic insertion block (72) is opened in the first positioning ring block (21), and the magnetic insertion block (72) is inserted into the magnetic groove (73).

8. A six-cylinder aircraft engine with a heat-insulating positioning fuel injector bracket according to claim 7, characterized in that: The insertion rod (62) is also provided with a mating mechanism (8), which is used to assist the magnetic insertion block (72) in being inserted into the magnetic groove (73); The cooperating mechanism (8) includes a telescopic rod (81) disposed in the through slide (61), one end of the telescopic rod (81) is connected to the insert rod (62), and the other end of the telescopic rod (81) is connected to the magnetic insert block (72); The bottom of the magnetic plug (72) is also provided with an auxiliary spring (82). The magnetic plug (72) is elastically connected to the plug rod (62) through the auxiliary spring (82). The auxiliary spring (82) is sleeved on the outside of the telescopic rod (81).

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