Engine oil system modularization device of high-power diesel locomotive
By designing a modular device for the engine oil system, integrating an oil heat exchanger, an oil pre-supply pump and a self-cleaning oil filter, the problem of small space and inconvenient piping of high-power internal combustion engine locomotives is solved, and a compact structure and simplified assembly process is achieved.
Patent Information
- Application Number
- CN202422383438.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-29
AI Technical Summary
Due to the small space of high-power internal combustion engine locomotives, the arrangement of diesel engine oil system is inconvenient. The structure of the existing diesel engine external oil system is complicated and is not convenient for overall disassembly and assembly.
A modular device for the engine oil system is designed, including a module mounting frame, an oil heat exchanger, an oil pre-supply pump and a self-cleaning engine oil filter. Each component is connected through pipelines to realize pipes under the vehicle and lifting as a whole.
The compact structure and simplified assembly process of the high-power internal combustion engine oil system are realized, ensuring the quality of piping, and solving the problems of small space and inconvenient piping.
Smart Images
Figure CN222991581U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of the auxiliary system of diesel locomotives, and particularly relates to a modular device for the oil system of a high-power diesel locomotive. Background Art
[0002] When a high-power diesel locomotive is equipped with a high-power medium-speed diesel engine, due to the large volume and heavy weight of the medium-speed diesel engine, in order to ensure that the external dimensions of the diesel engine can be installed in the limited space of the diesel locomotive, it is inconvenient to arrange the oil system of the high-power diesel engine on the diesel engine. To solve this problem, an external oil system for the diesel engine is set up to pre-lubricate the oil for starting the diesel engine and to provide oil with a certain temperature, pressure and cleanliness during the operation of the diesel engine, so as to ensure the lubrication and cooling of the moving parts of the diesel engine, and ultimately ensure the normal operation of the diesel engine of the diesel locomotive.
[0003] However, each unit of the existing external oil system for diesel engines is separately set, and the structure is relatively complex, which is not convenient for overall disassembly and assembly. Summary of the Utility Model
[0004] In order to solve the above problems existing in the prior art, the purpose of the utility model is to provide a modular device for the oil system of a high-power diesel locomotive.
[0005] The technical solution adopted by the utility model is as follows:
[0006] A modular device for the oil system of a high-power diesel locomotive includes a module mounting frame, on which an oil heat exchanger, an oil pre-supply pump and a self-cleaning oil filter are respectively installed. An oil inlet pipe is connected between the oil inlet of the oil heat exchanger and the diesel engine, an oil outlet pipe is connected between the oil outlet of the oil heat exchanger and the self-cleaning oil filter, a return oil pipe is connected between the self-cleaning oil filter and the diesel engine, and a pre-supply oil delivery pipe is connected between the outlet of the oil pre-supply pump and the oil inlet pipe.
[0007] The oil heat exchanger is responsible for the heat exchange between the diesel engine oil system and the cooling system of the diesel locomotive, so that the heat brought out by the oil circulating in the diesel engine oil system is exchanged with the cooling system of the locomotive, so that the oil can maintain a certain temperature to cool down the moving parts of the diesel engine and take away the heat generated by the moving parts. The self-cleaning oil filter is responsible for filtering and cleaning the oil entering the diesel engine, so that the diesel engine oil remains clean to lubricate the moving parts of the diesel engine, and takes away the worn metal powder of the moving parts, thereby improving the service life of the moving parts. The oil pre-supply pump is responsible for pre-supplying lubricating oil before starting the high-power diesel engine, thereby improving the service life of the moving parts of the diesel engine.
[0008] The oil heat exchanger, self-cleaning oil filter, oil centrifugal filter, and oil pre-feed pump of the present utility model are all installed on the module mounting rack, and the components within the module are connected through pipelines. The modular device of the oil system can achieve pipe laying under the vehicle, and after completion, it is hoisted as a whole, which simplifies the assembly process and ensures the pipe laying quality at the same time. The present utility model solves the problems of the large-power diesel locomotive, such as the narrow and cramped space, numerous pipelines on the vehicle, and inconvenient pipe laying and installation.
[0009] As a preferred solution of the present utility model, a pre-feed suction oil pipe is connected between the inlet of the oil pre-feed pump and the diesel engine.
[0010] As a preferred solution of the present utility model, the inlet pipe is a corrugated hose. The corrugated hose is responsible for the flexible connection between pipelines, damping and vibration isolation within the system, and compensating for the interchangeability of pipelines.
[0011] As a preferred solution of the present utility model, an oil centrifugal filter is also installed on the module mounting rack, and a dirty oil pipe is connected between the inlet of the oil centrifugal filter and the self-cleaning oil filter. The oil centrifugal filter is responsible for filtering and cleaning the dirty oil filtered out by the self-cleaning oil filter to ensure the performance of the self-cleaning oil filter.
[0012] As a preferred solution of the present utility model, a filtered oil pipe is connected to the inlet of the oil centrifugal filter.
[0013] As a preferred solution of the present utility model, the end of the filtered oil pipe away from the oil centrifugal filter is connected to the pre-feed suction oil pipe. Before starting the engine, a small amount of oil in the diesel engine enters the oil pre-feed pump from the pre-feed suction oil pipe, and then is sent into the oil heat exchanger by the oil pre-feed pump through the pre-feed delivery oil pipe and the inlet pipe. At this time, there is no filtered oil flowing out of the filtered oil pipe. After starting the engine, the oil pre-feed pump is closed, and the filtered oil pipe flows into the diesel engine through the pre-feed suction oil pipe.
[0014] As a preferred solution of the present utility model, a check valve is installed on the pre-feed delivery oil pipe. The function of the check valve is to prevent the reverse flow of the fluid medium in the pre-feed pipeline system after the oil pre-feed pump stops working when the diesel engine starts, and only allows the fluid medium flowing in the pre-feed pipeline system to flow in one direction.
[0015] As a preferred solution of the present utility model, an oil chamber is provided inside the oil heat exchanger, and the inlet and outlet of the oil heat exchanger are respectively communicated with the oil chamber.
[0016] As a preferred solution of the present utility model, a water-cooled chamber is also provided inside the oil heat exchanger. The function of the check valve is to prevent the reverse flow of the fluid medium in the pre-feed pipeline system after the pre-feed pump stops working when the diesel engine starts, and only allows the fluid medium flowing in the pre-feed pipeline system to flow in one direction.
[0017] As a preferred embodiment of the present utility model, a cooling water inlet and a cooling water outlet are provided on the engine oil heat exchanger, and the cooling water inlet and the cooling water outlet are respectively communicated with the water-cooled cavity.
[0018] The beneficial effects of the present utility model are as follows:
[0019] 1. The present utility model realizes the modular device structure of the engine oil system of high-power diesel locomotives. The structure is compact and occupies a small space. The present utility model realizes the underbody piping of the engine oil system of high-power diesel locomotives, and after completion, the whole is hoisted to ensure the piping quality.
[0020] 2. The present utility model integrates an engine oil pre-feed pump to pre-feed the diesel engine and realizes the pre-feed function of the diesel engine.
[0021] 3. The present utility model integrates an engine oil heat exchanger to cool and heat-exchange the engine oil of the diesel engine and realizes the cooling function of the engine oil of the diesel engine.
[0022] 4. The present utility model integrates a self-cleaning engine oil filter to filter and clean the engine oil of the diesel engine and realizes the cleaning and filtering of the engine oil of the diesel engine. The engine oil centrifugal filter filters and cleans the dirty oil of the self-cleaning engine oil filter and realizes the self-cleaning function of the engine oil filter. Description of the Drawings
[0023] Figure 1 is a schematic structural diagram of the present utility model in the first direction;
[0024] Figure 2 is a schematic structural diagram of the present utility model in the second direction;
[0025] Figure 3 is a schematic structural diagram of the present utility model after removing the self-cleaning engine oil filter.
[0026] In the figure: 1 - engine oil heat exchanger; 2 - self-cleaning engine oil filter; 3 - engine oil centrifugal filter; 4 - module mounting frame; 5 - engine oil pre-feed pump; 6 - check valve; 7 - oil inlet pipe; 8 - oil outlet pipe; 9 - oil return pipe; 10 - pre-feed suction pipe; 11 - pre-feed delivery pipe; 12 - dirty oil pipe; 13 - filter oil pipe. Detailed Embodiments
[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Generally, the components of the embodiments of the present utility model described and illustrated in the drawings here can be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the scope of protection of the present invention. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.
[0029] As Figures 1 to 3 shown, the modular device of the oil system of the high-power diesel locomotive in this embodiment includes a module mounting frame 4. An oil heat exchanger 1, an oil pre-feed pump 5, and a self-cleaning oil filter 2 are respectively mounted on the module mounting frame 4. An oil inlet pipe 7 is connected between the oil inlet of the oil heat exchanger 1 and the diesel engine. An oil outlet pipe 8 is connected between the oil outlet of the oil heat exchanger 1 and the self-cleaning oil filter 2. A return oil pipe 9 is connected between the self-cleaning oil filter 2 and the diesel engine. A pre-feed supply oil pipe 11 is connected between the outlet of the oil pre-feed pump 5 and the oil inlet pipe 7.
[0030] The oil heat exchanger 1 is responsible for the heat exchange between the diesel engine oil system and the cooling system of the diesel locomotive, allowing the oil circulating in the diesel engine oil system to exchange the heat carried out from the inside of the diesel engine with the locomotive cooling system, keeping the oil at a certain temperature to cool down the moving parts of the diesel engine and taking away the heat generated by the moving parts. The self-cleaning oil filter 2 is responsible for filtering and cleaning the oil entering the diesel engine, keeping the diesel engine oil clean for lubricating the moving parts of the diesel engine, and taking away the worn metal powder of the moving parts to improve the service life of the moving parts. The oil pre-feed pump 5 is responsible for pre-supplying lubricating oil before starting the high-power diesel engine to improve the service life of the moving parts of the diesel engine.
[0031] The oil heat exchanger 1, the self-cleaning oil filter 2, the oil centrifugal filter 3, and the oil pre-feed pump 5 of the present invention are all mounted on the module mounting frame 4, and the components inside the module are connected by pipelines. The modular device of the oil system can achieve pipe laying under the vehicle and then be hoisted as a whole, which simplifies the assembly process and can ensure the pipe laying quality at the same time. The present invention solves the problems of the high-power diesel locomotive due to the narrow and tense space, numerous pipelines on the vehicle, and inconvenient pipe laying and installation.
[0032] Among them, a pre-feed suction pipe 10 is connected between the inlet of the oil pre-feed pump 5 and the diesel engine.
[0033] The oil inlet pipe 7 is a corrugated hose. The corrugated hose is responsible for the flexible connection between pipelines, damping and vibration isolation within the system, and compensating for the interchangeability of pipelines.
[0034] Furthermore, an oil centrifugal filter 3 is also installed on the module mounting bracket 4. A dirty oil pipe 12 is connected between the inlet of the oil centrifugal filter 3 and the self-cleaning oil filter 2. The oil centrifugal filter 3 is responsible for filtering and cleaning the dirty oil filtered out by the self-cleaning oil filter 2 to ensure the performance of the self-cleaning oil filter 2.
[0035] The inlet of the oil centrifugal filter 3 is connected with a filter oil pipe 13. One end of the filter oil pipe 13 away from the oil centrifugal filter 3 is connected to the pre-supply suction oil pipe 10. Before starting the engine, a small amount of oil in the diesel engine enters the oil pre-supply pump 5 from the pre-supply suction oil pipe 10, and then is sent into the oil heat exchanger 1 by the oil pre-supply pump 5 through the pre-supply delivery oil pipe 11 and the oil inlet pipe 7. At this time, there is no filtered oil flowing out of the filter oil pipe 13. When the engine starting is completed, the oil pre-supply pump 5 is closed, and the filter oil pipe 13 flows into the diesel engine through the pre-supply suction oil pipe 10.
[0036] Furthermore, a check valve 6 is installed on the pre-supply delivery oil pipe 11. The function of the check valve 6 is to prevent the reverse flow of the fluid medium in the pre-supply pipeline system after the oil pre-supply pump 5 stops working when the diesel engine starts, and only allows the fluid medium flowing in the pre-supply pipeline system to flow in one direction.
[0037] Among them, an oil chamber is arranged in the oil heat exchanger 1, and the oil inlet and outlet of the oil heat exchanger 1 are respectively communicated with the oil chamber.
[0038] A water-cooled chamber is also arranged in the oil heat exchanger 1. The function of the check valve 66 is to prevent the reverse flow of the fluid medium in the pre-supply pipeline system after the pre-supply pump stops working when the diesel engine starts, and only allows the fluid medium flowing in the pre-supply pipeline system to flow in one direction. A cooling water inlet and a cooling water outlet are arranged on the oil heat exchanger 1, and the cooling water inlet and the cooling water outlet are respectively communicated with the water-cooled chamber.
[0039] The utility model is applicable to the oil system of diesel locomotives. It mainly consists of an oil heat exchanger 1, a self-cleaning oil filter 2, an oil centrifugal filter 3, an oil pre-supply pump 5, a check valve 6, a module mounting bracket 4 and pipelines integrated into a modular device. After being assembled under the vehicle, the whole modular device is hoisted onto the vehicle after integration, which reduces the difficulty of the assembly and piping process and ensures the piping quality of the system. The utility model can realize the pre-supply before starting the diesel engine of high-power diesel locomotives, cool and filter the oil, provide oil with a certain temperature, pressure and cleanliness for the diesel engine during operation, ensure the lubrication and cooling of the moving parts of the diesel engine, and ultimately ensure the normal operation of the diesel engine of the diesel locomotive.
[0040] The present utility model is not limited to the above-mentioned optional embodiments. Any person can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as the technical solutions fall within the scope defined by the claims of the present utility model, they shall fall within the protection scope of the present utility model.
Claims
1. A modular device for the oil system of a high-power diesel locomotive, characterized in that: The invention comprises a module mounting frame (4), on which an oil heat exchanger (1), an oil pre-supply pump (5) and a self-cleaning oil filter (2) are respectively mounted, an oil inlet pipeline (7) is connected between the oil inlet of the oil heat exchanger (1) and the diesel engine, an oil outlet pipeline (8) is connected between the oil outlet of the oil heat exchanger (1) and the self-cleaning oil filter (2), an oil return pipeline (9) is connected between the self-cleaning oil filter (2) and the diesel engine, and a pre-supply oil delivery pipe (11) is connected between the outlet of the oil pre-supply pump (5) and the oil inlet pipeline (7).
2. The modular device for the oil system of a high-power diesel locomotive according to claim 1, characterized in that: A pre-supply oil suction pipe (10) is connected between the inlet of the engine oil pre-supply pump (5) and the diesel engine.
3. The modular device for the oil system of a high-power diesel locomotive according to claim 1, characterized in that: The oil inlet pipeline (7) is a corrugated hose.
4. The modular device for the oil system of a high-power diesel locomotive according to claim 2, characterized in that: The module mounting frame (4) is also provided with an oil centrifugal filter (3), and a dirty oil pipe (12) is connected between the inlet of the oil centrifugal filter (3) and the self-cleaning oil filter (2).
5. The modular device for the oil system of a high-power diesel locomotive according to claim 4, characterized in that: The inlet of the engine oil centrifugal filter (3) is connected to a filter oil pipe (13).
6. The modular device for the oil system of a high-power diesel locomotive according to claim 5, characterized in that: One end of the oil filter pipe (13) away from the oil centrifugal filter (3) is connected to the pre-supply oil suction pipe (10).
7. The modular device for the oil system of a high-power diesel locomotive according to claim 1, characterized in that: A check valve (6) is installed on the pre-supply oil delivery pipe (11).
8. The modular device for the oil system of a high-power diesel locomotive according to claim 1, characterized in that: An oil chamber is provided in the oil heat exchanger (1), and an oil inlet and an oil outlet of the oil heat exchanger (1) are respectively connected to the oil chamber.
9. The modular device for the oil system of a high-power diesel locomotive according to claim 8, characterized in that: A water cooling chamber is also provided in the engine oil heat exchanger (1).
10. The modular device for the oil system of a high-power diesel locomotive according to claim 9, characterized in that: The oil heat exchanger (1) is provided with a cooling water inlet and a cooling water outlet, and the cooling water inlet and the cooling water outlet are respectively connected to the water cooling chamber.