Lubricated housing system

Abstract

A lubricated housing system includes a housing body defining an oil passage and a coolant passage, a main oil inlet fluidly coupled to the oil passage, an oil temperature sensor disposed within the oil passage, the oil temperature sensor determining an oil temperature of the oil, a thermostat disposed within the oil passage and communicatively coupled to the oil temperature sensor, the thermostat being transitionable between an open position and a closed position, a cooler cavity formed within the housing body, a cooler positioned within the cooler cavity, a coolant inlet fluidly coupled to the coolant passage and configured to receive a coolant, and a coolant outlet fluidly coupled to the coolant inlet via the coolant passage. In the open position, the thermostat directs the oil through the cooler positioned within the cooler cavity, and in the closed position, the thermostat directs the oil to bypass the cooler positioned within the cooler cavity.

Description

Technical Field

[0001] This disclosure relates to lubrication systems, and more specifically to lubrication housing systems configured to support fluid filtration, cooling, and pressure control within an engine or other similar machinery. Background Technology

[0002] Internal combustion engines (such as diesel engines) manage lubrication and cooling system components to maintain performance, durability, and emissions compliance. In conventional engines, these lubrication and cooling system components (e.g., oil coolers, oil filter heads, volutes, etc.) are provided as separate parts installed at various locations throughout the engine block. Therefore, these components are typically connected via hoses, external pipes, intermediate housings, and other similar connecting mechanisms, resulting in increased space requirements, additional leak points, longer assembly times, and greater complexity in engine block maintenance. Furthermore, conventional lubrication and cooling system components often lack internal flow distribution structures, which can lead to a flow arrangement within the engine block that reduces the engine's heat transfer efficiency and thermal effectiveness. For example, the flow arrangement provided in a conventional engine block can result in higher oil temperatures, potentially accelerating oil degradation throughout the engine block and increasing thermal stress on various lubrication and cooling system components. Utility Model Content

[0003] Therefore, there is a need for a lubrication housing system configured to house multiple lubrication and cooling components within a single housing, enabling the lubrication housing system to achieve lubricant cooling, filtration, and oil temperature control, while providing improved flow arrangement and thermal performance.

[0004] In embodiments of this disclosure, a lubrication housing system is disclosed. The lubrication housing system includes: a housing body defining an oil passage and a coolant passage; a main oil inlet fluidly connected to the oil passage; an oil temperature sensor disposed within the oil passage, the oil temperature sensor determining the oil temperature; a thermostat disposed within the oil passage and communicatively connected to the oil temperature sensor, the thermostat being switchable between an open position and a closed position; a cooler cavity formed within the housing body; a cooler positioned within the coolant cavity; a coolant inlet fluidly connected to the coolant passage and configured to receive coolant; and a coolant outlet fluidly connected to the coolant inlet via the coolant passage. In the open position, the thermostat guides oil through the cooler located within the cooler cavity, and in the closed position, the thermostat guides oil around the cooler located within the cooler cavity.

[0005] In another embodiment, the lubrication housing system includes a housing body comprising: a coolant passage defined within the housing body; a volute fluidly connected to the coolant passage and configured to supply coolant to the coolant passage; a coolant inlet fluidly connected to the coolant passage and configured to supply coolant to the coolant passage; a coolant outlet fluidly connected via the coolant passage to each of the volute and the coolant inlet; an oil passage defined within the housing body; a main oil inlet fluidly connected to the oil passage; a gallery oil outlet fluidly connected via the oil passage to the main oil inlet; and a cooler cavity having a plurality of ribs integrally formed within the cooler cavity. The lubrication housing system further includes: an oil temperature sensor disposed within the oil passage and configured to determine the oil temperature within the oil passage; a thermostat disposed within the oil passage and communicatively connected to the oil temperature sensor, the thermostat being switchable between an open position and a closed position; and a cooler received within the cooler cavity. In the open position, the thermostat guides the oil in the oil passage to the cooler, and at least a portion of the coolant is guided to the cooler cavity, such that multiple ribs formed in the cooler cavity guide the coolant to flow through the outer wall of the cooler as the oil flows through it.

[0006] In yet another embodiment, a method for guiding oil and coolant within a lubrication housing system includes: receiving oil at a main oil inlet formed in the lubrication housing system; guiding the oil through an oil passage to an oil filter interface; filtering the oil through the oil filter interface; selectively transferring the oil through a cooler of the lubrication housing system based on the oil temperature; discharging the oil from the lubrication housing system via an oil passage outlet; receiving coolant from at least one of a volute and a coolant inlet of the lubrication housing system; guiding a first flow portion of the coolant to a cooler cavity formed in the lubrication housing system such that the first flow portion of the coolant contacts an outer wall of the cooler; and guiding a second flow portion of the coolant to a coolant outlet formed in the lubrication housing system.

[0007] This disclosure includes, but is not limited to, the following provisions.

[0008] Clause 1. A lubrication housing system comprising: A housing body defining an oil passage and a coolant passage; A main oil inlet, which is fluidly connected to the oil passage; An oil temperature sensor is disposed within the oil passage and configured to determine the oil temperature within the oil passage; A thermostat, which is disposed within the oil passage and communicatively connected to the oil temperature sensor, is capable of switching between an open position and a closed position; A cooler cavity is formed within the housing body; A cooler, the cooler being positioned within a cooler cavity formed within the housing body; A coolant inlet, fluidly connected to the coolant passage and configured to receive coolant; and A coolant outlet, which is fluidly connected to the coolant inlet via the coolant passage; In the open position, the thermostat guide oil passes through the cooler located within the cooler cavity, and in the closed position, the thermostat guide oil bypasses the cooler located within the cooler cavity.

[0009] Clause 2. The lubrication housing system according to Clause 1 further includes a plurality of ribs formed within the cooler cavity.

[0010] Clause 3. The lubrication housing system according to Clause 1, wherein the coolant received in the coolant passage is divided into a first flow portion and a second flow portion, such that the first flow portion is directed into the cooler cavity and the second flow portion is directed to the coolant outlet.

[0011] Clause 4. The lubrication housing system according to Clause 1 further includes a volute located adjacent to the main oil inlet, the volute being fluidly connected to the coolant passage.

[0012] Clause 5. The lubrication housing system according to Clause 4, wherein the volute further includes a coolant outlet formed in a volute passage within the volute.

[0013] Clause 6. The lubrication housing system according to Clause 1 further includes a turbine oil inlet fluidly connected to the oil passage and configured to discharge oil received via an oil filter interface fluidly connected to the main oil inlet through the oil passage.

[0014] Clause 7. The lubrication housing system according to Clause 6, wherein the oil filter interface further includes an oil filter outlet configured to discharge oil from the housing body and an oil filter inlet configured to receive filtered oil.

[0015] Clause 8. The lubrication housing system according to Clause 1 further includes an oil service inlet fluidly connected to the oil passage and positioned between the main oil inlet and the thermostat.

[0016] Clause 9. The lubrication housing system according to Clause 1 further includes a turbine coolant inlet located adjacent to and fluidly isolated from the coolant passage.

[0017] Clause 10. The lubrication housing system according to Clause 1 further includes a coolant heater located between the coolant inlet and the coolant outlet and in fluid communication with the coolant passage.

[0018] Clause 11. The lubrication housing system according to Clause 1 further includes an oil quality sensor, which is received in an oil quality detection port formed in the housing body.

[0019] Clause 12. The lubrication housing system according to Clause 1 further includes a bypass valve located between the cooler cavity and the oil passage outlet of the housing body, the bypass valve being in fluid communication with the oil passage.

[0020] Clause 13. The lubrication housing system according to Clause 12, wherein the bypass valve is configured to automatically change from a closed position to an open position when the oil pressure in the oil passage reaches or exceeds a predetermined oil pressure threshold.

[0021] Clause 14. A lubrication housing system comprising: The housing body includes: - Coolant passage, which is defined within the housing body; - A volute, which is in fluid communication with the coolant passage and is configured to supply coolant to the coolant passage; - A coolant inlet, which is in fluid communication with the coolant passage and is configured to supply coolant to the coolant passage; - A coolant outlet, which is in fluid communication with each of the volute and the coolant inlet via the coolant passage; - Oil passage, which is defined within the housing body; - Main oil inlet, which is fluidly connected to the oil passage; - An oil passage outlet, which is fluidly connected to the main oil inlet via the oil passage; and - A cooler cavity having a plurality of ribs integrally formed therein; An oil temperature sensor is disposed within the oil passage and configured to determine the oil temperature within the oil passage; A thermostat, disposed within the oil passage and communicatively connected to the oil temperature sensor, the thermostat being capable of switching between an open and a closed position; and A cooler, the cooler being housed within the cooler cavity; In the open position, the thermostat guides the oil in the oil passage to the cooler, and at least a portion of the coolant is guided to the cooler cavity, such that the plurality of ribs formed in the cooler cavity guide the coolant to flow through the outer wall of the cooler as the oil flows through it.

[0022] Clause 15. The lubrication housing system according to Clause 14, wherein the volute further includes a coolant outlet formed in a volute passage within the volute.

[0023] Clause 16. The lubrication housing system according to Clause 14, wherein the housing body further includes a turbine coolant inlet located adjacent to and fluidly isolated from the coolant passage.

[0024] Clause 17. The lubrication housing system according to Clause 14 further includes a bypass valve located between the cooler cavity and the oil passage outlet, the bypass valve being in fluid communication with the oil passage.

[0025] Clause 18. The lubrication housing system according to Clause 17, wherein the bypass valve is configured to automatically change from a closed position to an open position when the oil pressure in the oil passage reaches or exceeds a predetermined oil pressure threshold.

[0026] Clause 19. The lubrication housing system according to Clause 18, wherein the thermostat switches to the open position when the oil temperature reaches or exceeds a predetermined oil temperature threshold, and switches to the closed position when the oil temperature drops below the predetermined oil temperature threshold.

[0027] Clause 20. A method for guiding oil and coolant within a lubrication housing system, the method comprising: The oil is received at the main oil inlet formed in the lubrication housing system; The oil is guided through the oil channel and directed to the oil filter interface; The oil is filtered through the oil filter interface; The oil is selectively transported through the cooler of the lubrication housing system based on its temperature. The oil is discharged from the lubrication housing system via the oil outlet; Coolant is received from at least one of the volute and coolant inlet of the lubrication housing system; A first flow portion of the coolant is guided to a cooler cavity formed in the lubrication housing system, such that the first flow portion of the coolant contacts the outer wall of the cooler; and The second flow portion of the coolant is directed to the coolant outlet formed in the lubrication housing system. Attached Figure Description

[0028] The embodiments illustrated in the accompanying drawings are illustrative and exemplary in nature and are not intended to limit the subject matter as defined by the claims. The following detailed description of the illustrative embodiments will be understood when read in conjunction with the following drawings, wherein like structures are indicated by like reference numerals, and wherein: Figure 1 This is a perspective view of a lubrication housing system according to one or more embodiments shown and described herein; Figure 2 It is based on one or more embodiments shown and described herein. Figure 1 Rear view of the lubrication housing system; Figure 3 It is based on one or more embodiments shown and described herein. Figure 1 Front view of the lubrication housing system; Figure 4 It is based on one or more embodiments shown and described herein. Figure 1 A partial perspective view of the oil cooler of the lubrication housing system; Figure 5 It is based on one or more embodiments shown and described herein. Figure 1 A partial perspective view of the flow distribution mechanism of the lubrication housing system; Figure 6 It is based on one or more embodiments shown and described herein. Figure 4 A cross-sectional view of the oil cooler; Figure 7 It is based on one or more embodiments shown and described herein. Figure 1 A cross-sectional view of the lubrication housing system, which depicts the oil bypass; Figure 8 It is based on one or more embodiments shown and described herein. Figure 1 The rear perspective view of the lubrication housing system, which depicts the oil bypass; Figure 9 It is based on one or more embodiments shown and described herein. Figure 1 The bottom side view of the lubrication housing system depicts the oil flow path; Figure 10 It is based on one or more embodiments shown and described herein. Figure 1The rear view of the lubrication housing system depicts the oil flow path; Figure 11 It is based on one or more embodiments shown and described herein. Figure 10 A partial cross-sectional view of the lubrication housing system, which depicts the oil flow path; Figure 12 It is based on one or more embodiments shown and described herein. Figure 10 The front view of the lubrication housing system depicts the oil flow path and the oil cooler; Figure 13 It is based on one or more embodiments shown and described herein. Figure 1 The left-side view of the lubrication housing system, which depicts the coolant flow path; Figure 14 It is based on one or more embodiments shown and described herein. Figure 1 The rear view of the lubrication housing system depicts the coolant flow path; Figure 15 It is based on one or more embodiments shown and described herein. Figure 1 A perspective view of the lubrication housing system, depicting the coolant vent; and Figure 16 This is an illustrative flowchart of a method for guiding oil and coolant within a lubrication housing system.

[0029] Other features and advantages of this disclosure will be understood from the following embodiments described in detail herein and with reference to the accompanying drawings, in which the same reference numerals denote the same or similar parts. Detailed Implementation

[0030] In the embodiments described herein, the lubrication housing system includes: a housing body defining an oil passage and a coolant passage; a main oil inlet fluidly connected to the oil passage; an oil filter port fluidly connected to the main oil inlet via the oil passage; an oil outlet fluidly connected to the oil filter port and the main oil inlet via the oil passage; an oil temperature sensor disposed within the oil passage and configured to determine the oil temperature within the oil passage; a thermostat disposed within the oil passage and communicatively connected to the oil temperature sensor, the thermostat being switchable between an open position and a closed position; a cooler cavity disposed within the housing body; a cooler positioned within a cooler cavity formed within the housing body; a coolant inlet fluidly connected to the coolant passage and configured to receive coolant; and a coolant outlet fluidly connected to the coolant inlet via the coolant passage. In the open position, the thermostat directs oil through the cooler located within the cooler cavity, and in the closed position, the thermostat directs oil around the cooler located within the cooler cavity.

[0031] However, it should be understood that the disclosed embodiments are merely examples, and other embodiments may take various and alternative forms. The drawings are not necessarily to scale; some features may be exaggerated or minimized to show details of specific components. Therefore, the specific structural and functional details disclosed herein should not be construed as limiting, but merely as a representative basis for teaching those skilled in the art to employ these embodiments in various ways. As will be understood by those skilled in the art, various features shown and described with reference to any of the drawings may be combined with features shown in one or more other drawings to produce embodiments not explicitly shown or described. The combinations of features shown provide representative embodiments for typical applications. However, various combinations and modifications of features consistent with the teachings of this disclosure may be expected for a particular application or implementation.

[0032] Unless the context clearly specifies otherwise, as used herein, “a”, “an”, and “the” refer to the singular and plural indicators, respectively. As an example, a “processor” programmed to perform various functions means one processor programmed to perform each and every function, or more than one processor collectively programmed to perform each of the various functions.

[0033] As used herein, the term "coolant" can generally include liquid engine coolants (e.g., water-glycol mixtures) or any other thermal control fluid compatible with engine materials, without departing from the scope of this disclosure.

[0034] As mentioned above, conventional lubrication and cooling systems typically include an oil cooler, an oil filter, and a volute, which are housed in separate housings at different locations on the engine block and can be connected together via hoses, external pipes, and other similar castings. However, implementing separate housings for the various components used in the lubrication and cooling system leads to inefficient fluid transport, resulting in pressure losses, reduced cooling efficiency, and uneven temperature distribution within the lubrication and cooling circuits of the engine.

[0035] Furthermore, the conventional lubrication and cooling systems described above lack an internal flow-dividing structure, allowing coolant in the cooling circuit to potentially bypass parts of the oil cooler. When coolant bypasses the oil cooler, heat transfer efficiency may decrease, potentially leading to increased oil temperature and accelerated oil degradation. The flow arrangement of the coolant circuit can also result in other thermal inefficiencies within the engine block, such as localized hot spots that increase thermal stress on the cylinder head and other similar components.

[0036] The disclosed lubrication housing system aims to address these drawbacks by integrating multiple component housings into a single unit that provides improved internal flow paths, reduced confinement, and enhanced thermal management. For example, the lubrication housing system described herein can be configured to provide oil cooling, filtration, oil temperature control, coolant circulation, and accessory mounting, as will be described in further detail herein, within a single housing unit.

[0037] Embodiments of lubrication housing systems and methods for managing the flow of coolant and oil in an engine will now be described in more detail herein. These outlet systems will be described in detail below with reference to the accompanying drawings, wherein the same numbers refer to the same structures.

[0038] Now for reference Figures 1-3 The document describes a lubrication housing system 10. In the embodiments described herein, the lubrication housing system 10 can be configured for a pressure-lubricated piston engine or any other similar internal combustion engine utilizing liquid cooling and oil filtration, without departing from the scope of this disclosure. For example, the lubrication housing system 10 can be implemented in a diesel engine, a gasoline engine, a dual-fuel engine, a hydrogen internal combustion engine, or any other liquid-cooled internal combustion engine.

[0039] It should be further appreciated that in these embodiments, the lubrication housing system 10 may be formed of cast metal or any other similar material, which may be determined based on the operating environment in which the lubrication housing system 10 is situated, the thermal load on the lubrication housing system 10, and / or the associated manufacturing constraints within the lubrication housing system 10. For example, the lubrication housing system 10 may be formed of aluminum, cast iron or ductile iron, thermoplastic, polymer, stainless steel, nickel, or any other composite material and / or alloy thereof, without departing from the scope of this disclosure.

[0040] Still referencing Figures 1-3 The lubrication housing system 10 may include a housing body 12, which may serve as a single structural component in which various oil and / or coolant passages may be integrated. Therefore, it should be appreciated that the housing body 12 may be formed as a single integral structure (e.g., an integral casting, etc.) incorporating various ports, mounting elements, and / or internal chamber elements to support engine coolant and oil management, as will be described in further detail herein.

[0041] like Figures 1-3As further described herein, the lubrication housing system 10 may include multiple components that cooperate to define a cooling circuit. That is, the lubrication housing system 10 may be configured to guide coolant received from various engine components through the housing body 12 and to recirculate coolant that has passed through the housing body 12 back to the engine block. For example, in these embodiments, the lubrication housing system 10 may include a volute 20, such as a water pump volute, which may be integrated into the housing body 12. In these embodiments, the volute 20 may define a volute passage 22 that may be configured to guide coolant (e.g., water, etc.) from the water pump through the lubrication housing system 10, such that the volute passage 22 can convert the rotational energy of the coolant (e.g., as fluid traverses the volute passage 22) into a pressurized flow, as will be described in further detail herein.

[0042] In these embodiments, the lubrication housing system 10 may further include a front accessory drive mounting interface 24, such as a tensioner pulley mounting interface, which may be configured to secure a front accessory drive component (e.g., a pulley, etc.) to the housing body 12 of the lubrication housing system 10. Figure 1 As most clearly depicted, the front accessory drive mounting interface 24 may include a plurality of openings 26, which may be configured to receive a plurality of fasteners (e.g., bolts, screws, etc.) and secure the front accessory drive component to the lubrication housing system 10.

[0043] Still referencing Figures 1-3 The lubrication housing system 10 may also include a coolant inlet 32, which may be located behind the front accessory drive mounting interface 24 (e.g., on opposite sides of the housing body 12). The coolant inlet 32 ​​may be in fluid communication with an engine radiator or bypass loop (not shown), allowing coolant to return to the lubrication housing system 10 via the engine radiator or bypass loop. Therefore, it should be appreciated that the lubrication housing system 10 may include multiple coolant inlets (e.g., volute 20, coolant inlet 32, etc.), allowing coolant to be received within the housing body 12 of the lubrication housing system 10 via multiple different engine components (e.g., water pump, radiator, bypass loop, etc.).

[0044] like Figures 1-3As further described, the lubrication housing system 10 may also include a plurality of coolant outlets, such as a manifold coolant outlet 30 and a jacket coolant outlet 36, through which coolant that has circulated through the lubrication housing system 10 may be discharged. In these embodiments, the manifold coolant outlet 30 and / or the jacket coolant outlet 36 may be fluidly connected to the volute 20 and the coolant inlet 32 ​​via coolant passages extending through the housing body 12 of the lubrication housing system 10, such that coolant entering the housing body 12 via the volute 20 and / or the coolant inlet 32 ​​may be discharged via the manifold coolant outlet 30 and / or the jacket coolant outlet 36. Although in Figures 1-3 Although not shown in the diagram, it should be understood that, without departing from the scope of this disclosure, manifold coolant outlet 30 and / or jacketed coolant outlet 36 may be fluidly connected to any other similar component of the cylinder head, cooler, HVAC heater, or engine block. Reference will be made herein to... Figure 13 and Figure 14 The coolant flow path through the lubrication housing system 10 is described in more detail.

[0045] In these embodiments, coolant entering the lubrication housing system 10 via each of the volute 20 and coolant inlet 32 ​​can be mixed within the coolant passages before exiting via the manifold coolant outlet 30 and / or the jacket coolant outlet 36. It should be appreciated that implementing multiple coolant inlets (e.g., volute 20, coolant inlet 32, etc.) within the lubrication housing system 10 allows the lubrication housing system 10 to accommodate multiple coolant flows with varying temperatures within the coolant passages. Furthermore, by incorporating multiple coolant flows (e.g., via volute 20 and coolant inlet 32) into the housing body 12 described herein, piping systems can be eliminated, encapsulation improved, and leakage points within the lubrication housing system 10 reduced, as will be described in further detail herein.

[0046] Still referencing Figures 1-3 The lubrication housing system 10 may further include a turbine coolant inlet 34, which may be located on the upper part of the housing body 12, adjacent to the manifold coolant outlet 30 and the jacket coolant outlet 36. The turbine coolant inlet 34 may be in fluid communication with the turbocharger cooling circuit of the engine, so that coolant can enter the lubrication housing system 10 from the turbocharger cooling circuit via the turbine coolant inlet 34.

[0047] In these embodiments, the turbine coolant inlet 34 may be fluidly isolated from the volute 20, coolant inlet 32, manifold coolant outlet 30, and jacket coolant outlet 36, such that coolant entering the lubrication housing system 10 from the turbine coolant inlet 34 does not enter the coolant passages and mix with the coolant entering the lubrication housing system 10 via the volute 20 and / or coolant inlet 32. For example, turbine coolant entering the lubrication housing system 10 via the turbocharger or other similar engine components may have a turbine coolant temperature greater than the coolant temperature of the coolant entering the lubrication housing system 10 via the volute 20 or coolant inlet 32. Therefore, isolating the turbine coolant inlet 34 from the rest of the coolant circuit ensures that the coolant temperature of the coolant flowing through the coolant passages (e.g., as received from the volute 20 and / or coolant inlet 32) does not exceed a predetermined coolant temperature threshold. For example, it should be understood that engine components fluidly connected to manifold coolant outlet 30 and / or jacket coolant outlet 36 may have higher temperature sensitivity, such that isolating turbine coolant inlet 34 can ensure that the overall temperature of lubrication housing system 10 does not unnecessarily rise and / or exceed a predetermined threshold.

[0048] Furthermore, although the turbine coolant inlet 34 may be fluidly isolated from the coolant passages, it may be located adjacent to the coolant passages (e.g., between the manifold coolant outlet 30 and the volute 20 and / or coolant inlet 32). Therefore, in some embodiments, the proximity of the turbine coolant inlet 34 to the coolant passages allows the turbine coolant temperature to be tempered as the turbine coolant flows through the lubrication housing system 10.

[0049] In some other embodiments, it should be further appreciated that the turbine coolant inlet 34 may be in fluid communication with the coolant passages of the housing body 12 of the lubrication housing system 10. For example, in these embodiments, coolant received within the coolant passages (e.g., via coolant inlet 32 ​​and / or volute 20) may be provided to a portion of the housing body 12 in which the turbine coolant inlet 34 is located. Thus, in these embodiments, coolant from volute 20 and / or coolant inlet 32 ​​may mix with turbine coolant received via turbine coolant inlet 34, which may reduce the turbine coolant temperature before the turbine coolant is discharged from the lubrication housing system 10. In the embodiments described herein, the turbine coolant inlet 34 may be fluidly coupled to the coolant passages of the housing body 12 in a single flow direction (e.g., such that coolant received from volute 20 and / or coolant inlet 32 ​​can be transferred to the turbine coolant inlet 34 and prevent turbine coolant from entering the coolant passages), which may enable the lubrication housing system 10 to reduce the turbine coolant temperature without increasing the overall temperature of the lubrication housing system 10.

[0050] Still referencing Figures 1-3 The lubrication housing system 10 may also include a coolant heater 38, which may be located adjacent to the turbine coolant inlet 34. In these embodiments, the coolant heater 38 may be in fluid communication with the coolant passage at a location between the volute 20, the coolant inlet 32, and the manifold coolant outlet 30. Thus, coolant traversing the coolant passage may bypass and / or pass through the coolant heater 38 before exiting via the manifold coolant outlet 30.

[0051] In these embodiments, the coolant heater 38 can be configured to add thermal energy (e.g., heat) to the coolant circulating through a portion of the lubrication system 10, in which the coolant heater 38 is disposed. For example, by adding thermal energy to the coolant circulating within the lubrication housing system 10 (e.g., within the coolant passages of the housing body 12), the coolant heater 38 can allow the engine and other vehicle components to reach operating temperatures more quickly. Similarly, the coolant heater 38 can help improve engine efficiency by allowing the emission control system to reach predetermined emission operating temperatures more quickly, and can further allow for improved performance of the HVAC heater in cold weather.

[0052] It should be understood that, in the embodiments, the coolant heater 38 can be activated to achieve specific engine conditions. For example, the coolant heater 38 can be configured to activate when the engine temperature is at or below a predetermined engine temperature threshold. In these embodiments, the coolant heater 38 can assist the engine starting process when the engine starts at a low (e.g., cold) temperature. In other embodiments, the coolant heater 38 can be activated when the coolant temperature (e.g., coolant circulating through coolant passages) is at or below a predetermined coolant threshold. It should be further understood that, in each embodiment described herein, the coolant heater 38 can be deactivated when the engine temperature is determined to exceed a predetermined engine temperature threshold and / or when the coolant temperature is determined to exceed a predetermined coolant temperature threshold.

[0053] Still referencing Figures 1-3 The lubrication housing system 10 may also include multiple components that cooperate to define an oil flow circuit. That is, the lubrication housing system 10 may be configured to guide oil received from various engine components through the housing body 12 and to recirculate oil that has passed through the housing body 12 back to the engine block. For example, in these embodiments, the lubrication housing system 10 may include a main oil inlet 40, which may be fluidly coupled to an oil pump (not shown) in the engine block and configured to supply oil from the engine to the lubrication housing system 10.

[0054] like Figures 1-3 As further described herein, the lubrication housing system 10 may also include an oil filter port 41, which is fluidly connected to an external oil filter (not depicted) in the engine block. The oil filter port 41 serves as a bidirectional fluid connection between the lubrication housing system 10 and the oil filter, allowing oil from the engine block to drain from the lubrication housing system 10 and enter the oil filter via the oil filter port 41. In these embodiments, the filtered oil can then be recirculated back to the lubrication housing system 10 via the oil filter port 41, at which point the filtered oil can traverse oil passages defined within the housing body 12 and return to the various components of the engine block. Reference will be made herein to... Figures 9-12 A more detailed description of the oil flow through the oil passage.

[0055] In the embodiments described herein, the housing body 12 may further include an oil service inlet 42, which may be configured to allow an operator and / or service technician to supply oil to the lubrication housing system 10 during assembly and / or servicing. For example, in these embodiments, oil may be drained from the lubrication housing system 10 during servicing, and the oil service inlet 42 allows the operator to refill the lubrication housing system 10 with oil to pre-fill the engine prior to startup. It should be appreciated that by supplying sufficient oil to the lubrication housing system via the oil service inlet 42, dry starts or other similar conditions that could damage engine components can be ensured to be avoided.

[0056] Still referencing Figures 1-3 The lubrication housing system 10 may include an oil quality detection port 44, which may be located adjacent to an oil filter interface 41 within the oil passage of the housing body 12. In these embodiments, the oil quality detection port 44 may be configured to receive an oil quality sensor 45, which may be used to detect contaminants, soot load, fuel dilution, and / or deterioration of the oil circulating through the oil passage of the housing body 12. For example, in the embodiments described herein, the oil quality sensor 45 may be configured to monitor the oil quality level circulating through the lubrication housing system 10 and provide an alarm to the operator when the oil quality level drops below a predetermined oil quality threshold.

[0057] In these embodiments, the lubrication housing system 10 may further include a turbine oil inlet 46, which may be located adjacent to the oil quality inspection port 44 and the oil filter interface 41. The turbine oil inlet 46 may be fluidly connected to a main oil passage formed within the housing body 12 of the lubrication housing system 10, such that oil already processed (e.g., cooled) by the lubrication housing system 10 may be supplied to the turbocharger via the turbine oil inlet. Therefore, it should be appreciated that the turbine oil inlet 46 may be configured to supply pressurized, filtered oil from the housing body 12 of the lubrication housing system 10 to the engine's turbocharger.

[0058] In these embodiments, after lubricating the turbocharger, the oil supplied to the turbocharger via the turbine oil inlet 46 can be discharged to the oil pump and recirculated to the lubrication housing system 10 via the main oil inlet 40. Reference will be made herein to... Figures 9-12 The oil flow through the lubrication housing system 10 is described in more detail.

[0059] Still referencing Figures 1 to 3 The lubrication housing system 10 may also include an oil passage outlet 48, which may be configured to supply oil from the lubrication housing system 10 to various engine components, such as the crankshaft, bearing rods, valve mechanism, and other similar components located within engine oil passages. In these embodiments, the oil passage outlet 48 may be fluidly connected via a main oil passage to a main oil inlet and an oil filter interface 41, as will be referenced herein. Figures 9-12 Further detailed description. It should be recognized that, in Figures 1 to 3 In the embodiment shown, each of the oil outlet 48 and the turbine oil inlet 46 can branch from and be in fluid communication with the main oil passage extending through the housing body 12 of the lubrication housing system 10.

[0060] Still referencing Figures 1-3 The lubrication housing system may also include a thermostat 50 and an oil temperature sensor port 52, wherein the oil temperature sensor port 52 is configured to receive an oil temperature sensor 53. In these embodiments, the oil temperature sensor port 52 may be formed as part of the housing body 12 and may serve as a mounting location for the oil temperature sensor 53. The oil temperature sensor 53 can sample the oil as it passes through the lubrication housing system 10, allowing the oil temperature sensor 53 to determine the oil temperature during engine operation.

[0061] The thermostat 50 can be communicatively coupled to the oil temperature sensor 53 and can be configured to direct oil to various parts of the lubrication housing system 10 based on the oil temperature obtained and / or determined by the oil temperature sensor 53. For example, when the oil temperature is below a predetermined oil temperature threshold, the oil can be directly delivered via the thermostat 50 to various lubrication points (e.g., turbine oil inlet 46, oil passage outlet 48, etc.) to reduce engine warm-up time. However, in embodiments where the oil temperature reaches and / or exceeds the predetermined oil temperature threshold, the thermostat 50 can direct the oil through a cooler to improve engine cooling efficiency. Reference will be made herein to... Figures 4 to 6 and Figures 9 to 12 The operation of the cooler and the oil flow circuit through the lubrication housing system 10 is described in more detail.

[0062] like Figures 1 to 6 As further described, the housing body 12 of the lubrication housing system 10 may further define a cooler cavity 60, which may be configured to receive a cooler 70 (e.g., an oil cooler), which may be used to reduce the temperature of oil traversing the lubrication housing system 10. In these embodiments, the lubrication housing system 10 may also include a housing cover 14, which may be disposed around the cooler cavity 60 to secure the cooler within the cooler cavity 60.

[0063] like Figure 5 and Figure 6 Most clearly depicted, the cooler cavity 60 may include multiple flow-diverting mechanisms, such as multiple ribs 62, which may be configured to guide the flow of coolant around the cooler 70. In these embodiments, the multiple ribs 62 may be integrally formed with the cooler cavity 60 and the housing body 12. For example, during engine operation, at least a portion of the coolant flowing through the coolant passages may be guided into the cooler cavity 60, allowing the coolant to interact with the oil flowing through the cooler 70. As coolant enters the cooler cavity 60, the multiple ribs 62 may act as guides (e.g., baffles, etc.), directing the coolant toward the outer wall of the cooler 70, thereby increasing the contact surface area between the coolant and the cooler 70. It should be appreciated that, in these embodiments, increasing the contact area between the coolant and the cooler 70 can help improve heat exchange between the oil flowing through the cooler 70 and the coolant. This document will refer to Figures 9-15 The management of coolant and oil flow within the lubrication housing system 10 is described in more detail.

[0064] Now go to Figure 7 and Figure 8In some embodiments, the lubrication housing system 10 may further include a bypass valve 56, which may be located within the housing body 12. The bypass valve 56 may be configured to prevent damage to the engine and / or insufficient lubrication in the event that the engine's oil filter becomes clogged or otherwise restricted. For example, under these operating conditions, the bypass valve 56 may allow unfiltered oil to continue circulating through the lubrication housing system 10 and the engine, thereby preventing damage associated with total lubrication loss.

[0065] like Figure 7 and Figure 8 As further described above, the bypass valve 56 can be positioned adjacent to the oil filter port 41, such that in embodiments where the engine oil filter becomes clogged or when the engine is cold-started, actuation of the bypass valve 56 allows oil flowing through the main oil passage to bypass the oil filter port 41. For example, when the oil pressure is below a predetermined oil pressure threshold, the bypass valve 56 can be in the closed (e.g., normal) position. In the closed position, oil can circulate through the oil filter and return to the lubrication housing system 10 via the oil filter port 41, as referenced above. Figures 1-3 As stated above.

[0066] In these embodiments, when the oil pressure reaches and / or exceeds a predetermined oil pressure threshold, the bypass valve 56 can switch to the open position, in which oil can bypass (e.g., bypass) the oil filter and be directly delivered to various downstream components (e.g., turbine oil inlet 46, oil passage outlet 48, etc.). Once the oil pressure returns to normal (e.g., drops below the predetermined oil pressure threshold), the bypass valve 56 can return to the closed position, at which point the oil can be recirculated through the oil filter via the oil filter port 41. It should be understood that the bypass valve 56 described herein can be a spring-loaded valve or any other similar valve configured to automatically switch between a closed and open position as oil pressure fluctuates during engine operation.

[0067] Now for reference Figures 9-12 The oil flow path through the lubrication housing system 10 will now be described in more detail. In these embodiments, pressurized oil can enter the lubrication housing system 10 from the engine's oil pump via the main oil inlet 40. Furthermore, during engine maintenance and / or servicing, additional oil can be supplied to the lubrication housing system 10 via the oil service inlet 42.

[0068] When oil enters the main oil inlet 40, it can pass through the main oil passage 80, which is defined within the housing body 12 of the lubrication housing system 10. Figure 11The most clearly depicted example is the main oil passage 80, which fluidly connects the main oil inlet 40 to the oil filter port 41, the turbine oil inlet 46, and the oil passage outlet 48, such that oil passing through the main oil passage 80 can be filtered by the engine filter and discharged via the turbine oil inlet 46 and / or the oil passage outlet 48, as will be described in further detail herein.

[0069] Still referencing Figures 9-12 Oil entering the lubrication housing system 10 can initially be directed to the oil filter port 41, which can be configured to transfer oil to the engine's oil filter. In these embodiments, the oil filter port 41 may also include an oil filter outlet 41a and an oil filter inlet 41b, allowing the oil filter port 41 to function as a bidirectional flow mechanism, as referenced above. Figures 1-3 As described above. For example, as... Figure 9 As most clearly depicted, oil can be transferred from the oil filter inlet 41b to the engine's oil filter, allowing contaminants and other debris to be removed from the oil through the engine filter. After passing through the engine filter, the oil can return to the main oil passage 80 via the oil filter outlet 41a, where the filtered oil can be recirculated to the various engine components described above.

[0070] like Figures 9-12 As further described, the thermostat 50 and oil temperature sensor 53 can be positioned between the main oil inlet 40 and the oil filter port 41, such that oil passes through the thermostat and oil temperature sensor 53 before reaching the oil filter port 41. In these embodiments, the oil temperature sensor 53 determines the oil temperature and transmits it to the thermostat 50. Based on the oil temperature, the thermostat 50 can switch between an open position and a closed position, allowing the oil flow path through the lubrication housing system 10 to be adjusted based on the oil temperature.

[0071] For example, when the oil temperature is below a predetermined oil temperature threshold, the thermostat 50 can remain in the closed position, allowing the oil flow to bypass the cooler 70. In these embodiments, after passing through the oil filter inlet 41 and receiving treatment from the engine filter, the filtered oil can be directly recirculated to the turbine oil inlet 46 and / or the oil passage outlet 48 without passing through the cooler 70. It should be recognized that bypassing the cooler 70 when the oil temperature is below the predetermined oil temperature threshold can increase the lifespan of the oil within the lubrication housing system, as unnecessary circulation of oil through the cooler 70 can lead to oil degradation. Furthermore, bypassing the cooler 70 under the aforementioned operating conditions can further help reduce the confinement and viscosity losses within the oil flow caused by the cooler 70, which can improve fuel consumption and energy efficiency.

[0072] Still referencing Figures 9-12When the oil temperature reaches and / or exceeds a predetermined oil temperature threshold, the thermostat 50 can switch to the open position. In these embodiments, the oil can be guided into the cooler chamber 60, allowing it to pass through the cooler 70 located within the cooler chamber 60. It should be further understood that as the oil passes through the cooler 70, coolant can also be guided into the cooler chamber 60, allowing it to flow over the outer surface of the cooler 70 as the oil passes through it. In the embodiments described herein, as the oil passes through the cooler, heat from the oil can be transferred to the coolant, causing the oil temperature to drop below the predetermined oil temperature threshold. After circulating through the cooler 70, the oil can return to the main oil passage 80, where it can be recirculated to the various engine components via the turbine oil inlet 46 and / or the oil passage outlet 48.

[0073] In the embodiments described herein, the oil temperature sensor 53 continuously monitors the oil temperature within the main oil passage 80 of the lubrication housing system 10 and transmits the oil temperature to the thermostat 50. Therefore, the thermostat 50 can switch between an open and closed position based on the oil temperature, thereby ensuring that the oil temperature remains stable and providing adequate lubrication to any rotating components within the engine, such as the camshaft, crankshaft, pistons, bushings, turbocharger bearings, etc.

[0074] Now go to Figures 13-15 The coolant flow path through the lubrication housing system 10 will now be described in more detail. In these embodiments, the coolant can enter the lubrication housing system through a plurality of coolant inlets including the volute 20, coolant inlet 32, and turbine coolant inlet 34. As described above, the coolant entering the lubrication housing system 10 via the volute 20 and coolant inlet 32 ​​can converge within the coolant passage 90, such that the coolant received from each of the volute 20 and coolant inlet 32 ​​mixes within the coolant passage 90.

[0075] Once received within the coolant passage 90, the coolant can be divided into various flow portions, which can be guided to various components of the lubrication housing system 10 and / or the engine block. For example, a first flow portion of the coolant within the coolant passage can be guided through the volute passage 22 (e.g., as...). Figure 13 (As shown) and is received within the cooler cavity 60, where the first flow portion of the coolant can interact with the plurality of ribs 62.

[0076] As described above, the plurality of ribs 62 can guide the flow of the first flow portion of the coolant within the cooler cavity 60. Specifically, the plurality of ribs 62 can be configured to guide the first flow portion of the coolant into contact with the cooler 70, thereby maximizing the contact area between the coolant and the outer wall of the cooler 70. Furthermore, in these embodiments, the plurality of ribs 62 can induce turbulence within the first flow portion of the coolant, which can enhance heat transfer between the coolant and the oil flowing through the cooler 70. For example, it should be appreciated that, compared to laminar flow of coolant, turbulent coolant flow can provide improved mixing and a higher heat transfer coefficient.

[0077] When the first flow portion of the coolant is guided to the cooler cavity 60, the second flow portion of the coolant can bypass the cooler cavity 60, so that the second flow portion of the coolant is directly transmitted to the manifold coolant outlet 30 and / or the jacket coolant outlet 36 and the corresponding engine block components (e.g., engine cylinders, etc.).

[0078] Now for reference Figure 15 In some embodiments, the volute 20 may further include a coolant drain port 28, which may be formed within the volute passage 22. In these embodiments, the coolant drain port 28 allows coolant to be discharged from the lubrication housing system 10 during service and / or maintenance. Furthermore, the coolant drain port 28 allows the removal of residual coolant from the lubrication housing system 10 (e.g., coolant retained within the lubrication housing system 10 after the engine has been stopped). For example, under cold conditions, residual coolant within the lubrication housing system 10 may freeze and expand, causing cracks within the volute 20 and / or housing body 12. Therefore, draining residual coolant via the coolant drain port 28 prevents damage associated with freezing while also minimizing corrosion within the volute 20 over time.

[0079] Now for reference Figure 16 A method for guiding oil and coolant within a lubrication housing system is provided. In these embodiments, method 1600 may begin at process block 1610, which may involve receiving oil at a main oil inlet formed in the lubrication housing system. Once the oil is received within the lubrication housing system, the method may proceed to process block 1620, which may involve guiding the oil through an oil passage and to an oil filter interface.

[0080] After receiving oil at the oil filter interface, the method can proceed to process block 1630, which may include filtering the oil through the oil filter interface. The filtered oil may be selectively transferred through a cooler of the lubrication housing system based on the oil temperature, as shown in process block 1640. For example, in these embodiments, oil may be transferred through the cooler when the oil temperature reaches or exceeds a predetermined oil temperature threshold, and oil may bypass the cooler when the oil temperature is below the predetermined oil temperature threshold.

[0081] Once the oil is selectively transferred, the method can proceed to process block 1650, which may include discharging oil from the lubrication housing system via an oil passage outlet.

[0082] In the embodiments described herein, in addition to oil, the lubrication housing system can also manage coolant. Therefore, in these embodiments, the method may further include receiving coolant from at least one of the volute and coolant inlets of the lubrication housing system, as shown at process block 1660. Furthermore, once the coolant is received within the lubrication housing system, the coolant can be divided into multiple flow portions. For example, as... Figure 16 As shown, the method described herein may further include guiding a first flow portion of the coolant to a cooler cavity formed in the lubrication housing system, such that the first flow portion of the coolant contacts the outer wall of the cooler, as shown in process block 1670, and guiding a second flow portion of the coolant to a coolant outlet formed in the lubrication housing system, as shown in process block 1680.

[0083] In light of the foregoing, it should be understood that the embodiments described herein relate to a lubrication housing system configured to manage oil and coolant flows from multiple engine components and to integrate various coolant and oil passages into a single housing. While exemplary embodiments have been described above, this does not mean that these embodiments describe all possible forms covered by the claims. The language used in this specification is descriptive and not restrictive, and it should be understood that various changes may be made without departing from the spirit and scope of this disclosure.

[0084] As previously described, features of various embodiments can be combined to form other embodiments of the present invention that may not be explicitly described or shown. While various embodiments may have been described as providing advantages over other embodiments or prior art implementations in one or more desired features, those skilled in the art will recognize that one or more features or characteristics can be compromised to achieve desired overall system properties, depending on the specific application and implementation. These properties may include, but are not limited to, cost, strength, durability, lifecycle cost, merchantability, appearance, packaging, size, suitability, weight, manufacturability, ease of assembly, etc. Therefore, any embodiment described in one or more features as being less desirable than that desired by other embodiments or prior art implementations does not exceed the scope of this disclosure and may be desirable for a particular application.

Claims

1. A lubrication housing system, characterized in that, The lubrication housing system includes: A housing body defining an oil passage and a coolant passage; A main oil inlet, which is fluidly connected to the oil passage; An oil temperature sensor is disposed within the oil passage and configured to determine the oil temperature within the oil passage; A thermostat, which is disposed within the oil passage and communicatively connected to the oil temperature sensor, is capable of switching between an open position and a closed position; A cooler cavity is formed within the housing body; A cooler, the cooler being positioned within a cooler cavity formed within the housing body; A coolant inlet, fluidly connected to the coolant passage and configured to receive coolant; and A coolant outlet, which is fluidly connected to the coolant inlet via the coolant passage; In the open position, the thermostat guide oil passes through the cooler located within the cooler cavity, and in the closed position, the thermostat guide oil bypasses the cooler located within the cooler cavity.

2. The lubrication housing system according to claim 1, characterized in that, The lubrication housing system also includes multiple ribs formed within the cooler cavity.

3. The lubrication housing system according to claim 1, characterized in that, The coolant received in the coolant channel is divided into a first flow portion and a second flow portion, such that the first flow portion is guided into the cooler cavity and the second flow portion is guided to the coolant outlet.

4. The lubrication housing system according to claim 1, characterized in that, The lubrication housing system also includes a volute located adjacent to the main oil inlet, the volute being fluidly connected to the coolant passage.

5. The lubrication housing system according to claim 4, characterized in that, The volute also includes a coolant discharge port formed in the volute passage.

6. The lubrication housing system according to claim 1, characterized in that, The lubrication housing system also includes a turbine oil inlet fluidly connected to the oil passage and configured to discharge oil received via an oil filter interface fluidly connected to the main oil inlet through the oil passage.

7. The lubrication housing system according to claim 6, characterized in that, The oil filter interface also includes an oil filter outlet configured to discharge oil from the housing body and an oil filter inlet configured to receive filtered oil.

8. The lubrication housing system according to claim 1, characterized in that, The lubrication housing system also includes an oil service inlet fluidly connected to the oil passage and positioned between the main oil inlet and the thermostat.

9. The lubrication housing system according to claim 1, characterized in that, The lubrication housing system also includes a turbine coolant inlet, which is located adjacent to and fluidly isolated from the coolant passage.

10. The lubrication housing system according to claim 1, characterized in that, The lubrication housing system also includes a coolant heater, which is located between the coolant inlet and the coolant outlet and is in fluid communication with the coolant passage.

11. The lubrication housing system according to claim 1, characterized in that, The lubrication housing system also includes an oil quality sensor, which is received in an oil quality detection port formed in the housing body.

12. The lubrication housing system according to claim 1, characterized in that, The lubrication housing system also includes a bypass valve, which is located between the cooler cavity and the oil passage outlet of the housing body, and is in fluid communication with the oil passage.

13. The lubrication housing system according to claim 12, characterized in that, The bypass valve is configured to automatically switch from a closed position to an open position when the oil pressure in the oil passage reaches or exceeds a predetermined oil pressure threshold.

14. A lubrication housing system, characterized in that, The lubrication housing system includes: The housing body includes: - Coolant passage, which is defined within the housing body; - A volute, which is in fluid communication with the coolant passage and is configured to supply coolant to the coolant passage; - A coolant inlet, which is in fluid communication with the coolant passage and is configured to supply coolant to the coolant passage; - A coolant outlet, which is in fluid communication with each of the volute and the coolant inlet via the coolant passage; - Oil passage, which is defined within the housing body; - Main oil inlet, which is fluidly connected to the oil passage; - An oil passage outlet, which is fluidly connected to the main oil inlet via the oil passage; and - A cooler cavity having a plurality of ribs integrally formed therein; An oil temperature sensor is disposed within the oil passage and configured to determine the oil temperature within the oil passage; A thermostat, disposed within the oil passage and communicatively connected to the oil temperature sensor, the thermostat being capable of switching between an open and a closed position; and A cooler, the cooler being housed within the cooler cavity; In the open position, the thermostat guides the oil in the oil passage to the cooler, and at least a portion of the coolant is guided to the cooler cavity, such that the plurality of ribs formed in the cooler cavity guide the coolant to flow through the outer wall of the cooler as the oil flows through it.

15. The lubrication housing system according to claim 14, characterized in that, The volute also includes a coolant discharge port formed in the volute passage.

16. The lubrication housing system according to claim 14, characterized in that, The housing body also includes a turbine coolant inlet, which is located adjacent to and fluidly isolated from the coolant passage.

17. The lubrication housing system according to claim 14, characterized in that, The lubrication housing system also includes a bypass valve, which is located between the cooler cavity and the oil passage outlet and is in fluid communication with the oil passage.

18. The lubrication housing system according to claim 17, characterized in that, The bypass valve is configured to automatically switch from a closed position to an open position when the oil pressure in the oil passage reaches or exceeds a predetermined oil pressure threshold.

19. The lubrication housing system according to claim 18, characterized in that, When the oil temperature reaches or exceeds a predetermined oil temperature threshold, the thermostat switches to the open position, and when the oil temperature drops below the predetermined oil temperature threshold, the thermostat switches to the closed position.

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