CN210003355U

CN210003355U - engine dry oil pan system and engine

Info

Publication number: CN210003355U
Application number: CN201920712671.9U
Authority: CN
Inventors: 董旭; 徐胜辉; 张俊龙
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-01-31
Anticipated expiration: 2029-05-17

Abstract

The utility model relates to an engine field discloses kind of engine dry-type oil pan system and engine, wherein engine dry-type oil pan system is including the dry-type oil pan, the auxiliary oil pump, machine oil tank and the main oil pump that communicate in proper order, main oil pump and machine oil tank are through advancing the oil pipe intercommunication in order to send the machine oil of machine oil incasement to the structure of waiting to lubricate in the engine organism, auxiliary oil pump and machine oil tank are through going out the oil pipe intercommunication, auxiliary oil pump and machine oil tank all locate outside the engine organism, the main oil pump is located in the engine organism, advance oil pipe and/or go out oil pipe including the built-in oil pipe that is located the machine oil tank and the external oil pipe that is located the machine oil tank outside, built-in oil pipe and the external oil pipe that corresponds pass through oil pipe articulate, the utility model discloses simplified dry-type structure, need not integrated oil duct in the dry-type oil pan, reduced the processing cost, through adopting built-in oil pipe articulate and external oil pipe.

Description

engine dry oil pan system and engine

Technical Field

The utility model relates to an engine field especially relates to kinds of engine dry-type oil pan systems and engine.

Background

Military vehicle, cross country vehicle, cycle racing, part heavily block etc. require highly to climbing ability, whole car chassis, when adopting wet-type oil pan system, because the inclination that wet-type oil pan system can reach is lower, the chassis height is seriously influenced to the height of wet-type oil pan, and then influences the stability and the nature controlled that the vehicle travel.

In order to solve the above technical problems, the conventional military vehicle, off-road vehicle, racing car, and partial heavy truck generally adopt a dry sump system, as shown in fig. 1, the conventional dry sump system includes two electric oil pumps 2 ' and a sump 3 ' disposed outside an engine body, and a main oil pump 4 ' disposed inside the engine body, wherein the external electric oil pump 2 ' pumps the oil filtered by a front end filter 5 ' and a rear end filter 6 ' in the dry sump 1 to the sump 3 ', and then the main oil pump 4 ' pumps the oil in the sump 3 ' to a structure to be lubricated.

In the existing dry-type oil pan system, the dry-type oil pan 1 'adopts an aluminum casting, an integrated oil duct is formed inside the aluminum casting, an oil inlet hole and an oil outlet hole which are communicated with the integrated oil duct are formed in the outer wall of the dry-type oil pan 1', and then an oil inlet pipe and an oil inlet hole, an oil outlet pipe and an oil outlet hole are communicated through oil pipe joints. However, the dry oil pan system with such a structure is made of cast aluminum, which results in high processing cost and complicated internal oil passages.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an kind of engine dry-type oil pan systems can reduce the processing cost, simplifies the structure of dry-type oil pan.

To achieve the purpose, the utility model adopts the following technical proposal:

dry oil pan system of engine, which comprises dry oil pan, auxiliary oil pump, oil tank and main oil pump connected in turn;

the main oil pump is communicated with the oil tank through an oil inlet pipe so as to send the engine oil in the oil tank to a structure to be lubricated in an engine body, and the auxiliary oil pump is communicated with the oil tank through an oil outlet pipe; the auxiliary oil pump and the oil tank are both arranged outside the engine body, and the main oil pump is arranged in the engine body;

the oil inlet pipe and/or the oil outlet pipe comprise an internal oil pipe positioned in the dry oil pan and an external oil pipe positioned outside the dry oil pan, and the internal oil pipe and the corresponding external oil pipe are connected in a sealing mode through oil pipe joints.

As preferable technical solutions of the engine dry sump system, both the main oil pump and the auxiliary oil pump are oil pumps.

As preferable technical solutions of the above engine dry sump system, an oil pipe flange is connected to the end of the external oil pipe, a th through hole is formed in the oil pipe flange, and the oil pipe flange passes through the th through hole through a bolt and is connected to the dry sump.

In the preferable embodiments of the engine dry sump system, the inner diameter of the th through hole is larger than the outer diameter of the bolt.

preferable technical solutions of the above engine dry sump system are that the dry sump outer wall is provided with a mounting flange, and the oil pipe flange is threaded to the mounting flange through a bolt passing through the through hole.

According to preferable technical solutions of the above engine dry sump system, two ends of the oil pipe joint are respectively in sealed insertion connection with the external oil pipe and the internal oil pipe.

As preferable technical solutions of the above engine dry sump system, a -th limiting step is arranged in the external oil pipe, a second limiting step is arranged in the internal oil pipe, and two ends of the oil pipe joint are respectively inserted into the external oil pipe and the internal oil pipe and are clamped between the -th limiting step and the second limiting step.

According to preferable technical solutions of the engine dry sump system, the built-in oil pipe is connected with an oil pipe support, and the oil pipe support is connected to the inner wall of the dry sump.

According to preferable technical solutions of the engine dry sump system, the oil pipe bracket is welded to both the inner wall of the dry sump and the built-in oil pipe.

The utility model also provides engines, which comprises an engine body, a flywheel shell and the engine dry-type oil pan system;

the dry oil pan is installed at the bottom of the engine body, the main oil pump is arranged in the engine body, and the auxiliary oil pump is arranged on the flywheel shell.

The utility model has the advantages that: the utility model simplifies the structure of the dry oil pan, and the oil duct does not need to be integrated in the dry oil pan, thereby greatly reducing the processing cost; and the oil pipe joint is adopted to connect the built-in oil pipe and the external oil pipe, so that the coaxiality requirement of the built-in oil pipe and the external oil pipe during installation is reduced, and the installation difficulty of the built-in oil pipe and the external oil pipe is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a schematic diagram of a prior art dry sump system;

fig. 2 is a schematic structural diagram of a dry sump system according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a dry sump according to an embodiment of the present invention;

fig. 4 is a schematic view of connection between an external oil pipe and an oil pipe joint according to an embodiment of the present invention.

In the figure:

1', a dry sump; 2', an electric oil pump; 3', an oil tank; 4', a main oil pump; 5', a front end strainer; 6', a rear end strainer;

1. a dry sump; 2. an auxiliary oil pump; 3. an oil sump; 4. a main oil pump;

51. an oil inlet pipe is arranged inside; 52. an external oil inlet pipe;

61. an oil outlet pipe is arranged inside; 62. an oil outlet pipe is arranged outside;

7. an oil return pipe; 8. an oil pipe flange; 9. an oil pipe joint; 10. an oil pipe support; 20. a front end strainer; 30. a rear end strainer; 40. an external oil pipe; 50. a seal ring; 60. a gasket; 70. a bolt; 80. and (7) mounting a flange.

Detailed Description

In order to make the technical problems to be solved, the technical solutions to be adopted and the technical effects to be achieved by the present invention clearer, the following step is described with reference to the accompanying drawings and through specific embodiments.

Fig. 2 is a structural diagram of the engine dry oil pan system provided in the present embodiment, and as shown in fig. 2, the present embodiment provides types of engine dry oil pan systems, which are mainly applied to military vehicles, off-road vehicles, racing vehicles, partial heavy trucks, and other vehicles with high requirements on the height of the chassis.

The dry oil pan system of the engine provided by the embodiment comprises a dry oil pan 1, an auxiliary oil pump 2, an oil tank 3 and a main oil pump 4 which are sequentially communicated, wherein the auxiliary oil pump 2 is arranged outside the engine body and is used for pumping the engine oil in the dry oil pan 1 into the oil tank 3 through an oil outlet pipe; the engine oil tank 3 is arranged outside the engine body, the main oil pump 4 is arranged in the engine body, the main oil pump 4 extracts the engine oil in the engine oil tank 3 through an oil inlet pipe and sends the engine oil to a structure to be lubricated, such as a crankshaft, a crank-link mechanism, a piston and the like, the dry-type oil pan 1 is positioned at the bottom of the engine body, the main pump 4 sends the engine oil to the structure to be lubricated, and the structure to be lubricated is lubricated and then drips into the dry-type oil pan 1. The dry sump 1, the auxiliary oil pump 2, the oil tank 3, and the main oil pump 4 form a dry sump system in the above-described arrangement. By adopting the dry oil pan system, the inclination angle of the vehicle can be increased, and the climbing capability and the chassis height of the vehicle using the dry oil pan system are improved.

In the embodiment, since the dry oil pan is not required to be provided with the integrated oil passage, the structure of the dry oil pan 1 is simplified, and the dry oil pan 1 is formed by stamping, the processing cost of the dry oil pan 1 is greatly reduced.

The secondary oil pump 2 is the electric oil pump usually among the prior art, and the circuit arrangement of electric oil pump is nearer apart from machine oil tank 3, and machine oil tank 3 temperature is higher, has comparatively serious risk of catching fire when electric oil pump during operation. Therefore, in the embodiment, the auxiliary oil pump 2 adopts an oil pump, the oil pump is a mechanical oil pump, the problem of electric ignition does not exist, and the problem of high ignition risk when an electric oil pump is adopted is solved. The main oil pump 4 is disposed in the engine body and will directly contact engine oil, and in order to reduce the risk of fire, the main oil pump 4 is also an oil pump.

Fig. 3 is a schematic structural diagram of the dry sump according to the present embodiment, and fig. 4 is a schematic connection diagram between an external oil pipe and an oil pipe joint according to the present embodiment. As shown in fig. 3 and 4, in the present embodiment, both the oil inlet pipe and the oil outlet pipe need to penetrate through the side wall of the dry oil pan 1, both the oil inlet pipe and the oil outlet pipe include an internal oil pipe located in the dry oil pan 1 and an external oil pipe 40 located outside the dry oil pan 1, and the internal oil pipe and the corresponding external oil pipe 40 are connected by an oil pipe joint 9. The oil pipe joint 9 is used for connecting the built-in oil pipe and the corresponding external oil pipe 40, so that the coaxiality requirement of the built-in oil pipe and the external oil pipe 40 during installation is reduced, and the installation difficulty of the built-in oil pipe and the external oil pipe 40 is reduced.

Specifically, the oil inlet pipes comprise an internal oil inlet pipe 51 positioned in the dry oil pan 1 and an external oil inlet pipe 52 positioned outside the dry oil pan 1, the internal oil inlet pipe 51 and the external oil inlet pipe 52 are connected through an th oil pipe joint, the oil outlet pipes comprise an internal oil outlet pipe 61 positioned in the dry oil pan 1 and an external oil outlet pipe 62 positioned outside the dry oil pan 1, and the internal oil outlet pipe 61 and the external oil outlet pipe 62 are connected through a second oil pipe joint.

steps are carried out, the auxiliary oil pump 2 is communicated with the oil tank 3 through an oil return pipe 7, the oil return pipe 7 and the external oil inlet pipe 52 are both made of non-metal materials with good heat resistance or made of metal, and the oil return pipe 7 made of the non-metal materials with good heat resistance or made of metal is adopted when the engine oil in the oil tank 3 works at a high temperature, so that the oil return pipe 7 and the external oil inlet pipe 52 close to end of the oil tank 3 can be effectively prevented from being baked, and the oil leakage probability is reduced.

, in order to avoid other structures, the bottom wall part of the dry oil pan 1 protrudes inwards to divide the dry oil pan 1 into two oil sumps, each oil sump is internally provided with a strainer, each strainer is connected to the auxiliary oil pump 2 through a corresponding oil outlet pipe, specifically, the two oil sumps are respectively a front oil sump and a rear oil sump, wherein the front oil sump is internally provided with a front strainer 20, the rear oil sump is internally provided with a rear strainer 30, the front strainer 20 is connected to built-in oil outlet pipes 61, the rear strainer 30 is connected to built-in oil outlet pipes 61, the two built-in oil outlet pipes 61 penetrate through the side wall of the oil pan 1 and are connected to the same dry oil pump external oil outlet pipe 62, and auxiliary oil pumps 2 are adopted to simultaneously pump the oil in the two oil sumps, so as to reduce the number of the auxiliary oil pumps 2 and reduce the occupied space of the dry oil pan system of the engine.

As shown in FIG. 4, two ends of the oil pipe joint 9 are respectively connected with the external oil pipe 40 and the internal oil pipe in a sealing and inserting manner, specifically, an th limit step is arranged in the external oil pipe 40, a second limit step is arranged in the internal oil pipe, the end of the oil pipe joint 9 is inserted into the external oil pipe 40 and abuts against the th limit step, the end is inserted into the internal oil pipe and abuts against the second limit step, the oil pipe joint 9 is clamped between the th limit step and the second limit step, in order to prevent the engine oil which is not filtered by the strainer in the dry oil pan 1 from entering the internal oil pipe, a sealing ring 50 is arranged between the internal oil pipe and the oil pipe joint 9, in order to prevent the engine oil in the external oil pipe 40 from leaking through a gap between the external oil pipe 40 and the oil pipe joint 9.

Of course, the external oil pipe 40 may be inserted into the oil pipe joint 9, or the internal oil pipe may be inserted into the oil pipe joint 9, and the limiting step may be provided in the oil pipe joint 9 to limit the external oil pipe 40 or the internal oil pipe.

step by step, end of external oil pipe 40 is connected with oil pipe flange 8, be equipped with a plurality of penetrating holes on oil pipe flange 8, a plurality of penetrating holes are along oil pipe flange 8 circumference evenly distributed, 1 outer wall of dry oil pan is equipped with mounting flange 80, be equipped with a plurality of second penetrating holes that correspond with penetrating hole on the mounting flange 80, wherein the second penetrating hole is the screw hole, oil pipe flange 8 passes penetrating hole and threaded connection in second penetrating hole through bolt 70, in order to connect external oil pipe 40 in dry oil pan 1. in this embodiment, mounting flange 80 welds in 1 outer wall of dry oil pan, oil pipe flange 8 welds in external oil pipe 40.

In order to avoid oil leakage, a seal gasket 60 is interposed between the contact surfaces of the oil pipe flange 8 and the mounting flange 80.

In order to reduce the installation difficulty between the external oil pipe 40 and the internal oil pipe by steps, in this embodiment, the inner diameter of the th through hole is larger than the outer diameter of the bolt 70, and the installation requirement on coaxiality when the internal oil pipe and the external oil pipe 40 are installed is further steps, preferably, the inner diameter of the th through hole is larger than the outer diameter of the bolt 70 by about 1mm, so that more movement allowance is provided for the installation of the external oil pipe 40.

The built-in oil pipe is connected with an oil pipe support 10, and the oil pipe support 10 is connected to the inner wall of the dry oil pan 1. specifically, when the built-in oil pipe is installed, the built-in oil pipe and the oil pipe support 10 are welded at first, then the oil pipe support 10 is machined into a corresponding structure, and finally the oil pipe support 10 is welded to the inner wall of the dry oil pan 1, so as to ensure the position precision of the built-in oil pipe.

The embodiment also provides engines, which comprise an engine body, a flywheel shell and the engine dry oil pan system, wherein the dry oil pan 1 is installed at the bottom of the engine body, the main oil pump 4 is arranged in the engine body, and the auxiliary oil pump 2 is arranged on the flywheel shell.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like refer to orientations and positional relationships based on the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" shall be construed , for example, they may be fixedly connected, detachably connected, or physically connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, and communicating between two elements.

Claims

The dry oil pan system of the engine of 1 and comprises a dry oil pan (1), an auxiliary oil pump (2), an oil tank (3) and a main oil pump (4) which are sequentially communicated, and is characterized in that,

the main oil pump (4) is communicated with the oil tank (3) through an oil inlet pipe so as to send the engine oil in the oil tank (3) to a structure to be lubricated in an engine body, and the auxiliary oil pump (2) is communicated with the oil tank (3) through an oil outlet pipe; the auxiliary oil pump (2) and the oil tank (3) are arranged outside the engine body, and the main oil pump (4) is arranged in the engine body;

the oil inlet pipe and/or the oil outlet pipe comprise an internal oil pipe positioned in the dry oil pan (1) and an external oil pipe (40) positioned outside the dry oil pan (1), and the internal oil pipe and the corresponding external oil pipe (40) are connected in a sealing mode through an oil pipe joint (9).
2. The engine dry sump system according to claim 1, characterized in that the main oil pump (4) and the auxiliary oil pump (2) are both oil pumps.
3. The engine dry sump system according to claim 1, wherein an oil pipe flange (8) is connected to the end of the external oil pipe (40), a th through hole is formed in the oil pipe flange (8), and the oil pipe flange (8) is connected to the dry sump (1) through the th through hole by bolts (70).
4. The engine dry sump system according to claim 3, wherein the -th penetration has an inner diameter greater than an outer diameter of the bolt (70).
5. The engine dry sump system according to claim 3, wherein the dry sump (1) is provided with a mounting flange (80) on the outer wall, and the oil pipe flange (8) is threaded to the mounting flange (80) through the -th through hole by bolts (70).
6. The engine dry sump system according to claim 1, wherein both ends of the oil pipe joint (9) are sealingly plugged with the external oil pipe (40) and the internal oil pipe, respectively.
7. The engine dry sump system according to claim 6, wherein an th limiting step is arranged in the external oil pipe (40), a second limiting step is arranged in the internal oil pipe, and two ends of the oil pipe joint (9) are respectively inserted into the external oil pipe (40) and the internal oil pipe and are clamped between the th limiting step and the second limiting step.
8. The engine dry sump system according to claim 1, characterized in that the oil pipe is connected with an oil pipe bracket (10), and the oil pipe bracket (10) is connected to the inner wall of the dry sump (1).
9. The engine dry sump system according to claim 8, characterized in that the oil pipe bracket (10) is welded to both the inner wall of the dry sump (1) and the built-in oil pipe.
10, an engine, comprising an engine block, a flywheel housing and an engine dry sump system according to any of claims 1 to 9 or ;

the dry oil pan (1) is installed at the bottom of the engine body, the main oil pump (4) is arranged in the engine body, and the auxiliary oil pump (2) is arranged on the flywheel shell.