Tool for engine oil-gas separation test

Abstract

The utility model relates to the technical field of engine testing, in particular to a tool for engine oil-gas separation testing, which comprises a base assembly, a shell and a testing assembly, the shell is fixedly assembled in the base assembly and used for enabling oil gas generated in the running process of an engine to enter the shell, and the testing assembly is assembled on the base assembly and used for testing the oil gas generated in the running process of the engine. And the air leakage testing device is positioned in the shell and is used for testing return oil air leakage entering the shell. The engine oil liquid level testing device aims to automatically test the liquid level height of entering engine oil, is simple in structure and high in universality, and can be suitable for hybrid engine assemblies with different displacements and specifications so as to meet different testing requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of engine testing, in particular to a tool for testing oil and gas separation of an engine. Background Art

[0002] During the operation of the hybrid engine, the crankcase leakage of the engine increases and worsens due to the wear of the outer circle of the piston ring, the wear of the valve guide, the increase of the supercharger return oil leakage, etc., which further affects the excessive crankcase pressure of the engine, resulting in the damage of the crankcase seal and oil leakage, causing the oil pan to leak and lose, causing environmental air pollution. In order to assess whether the engine crankcase leakage meets the design target, it is necessary to carry out crankcase leakage test and supercharger return oil leakage test. It is necessary to test the crankcase leakage and supercharger return oil leakage of the engine under different loads respectively, and evaluate and analyze whether the hybrid engine crankcase leakage and supercharger return oil leakage meet the evaluation requirements.

[0003] Chinese patent: CN208443583U, which discloses an engine supercharger oil return blowby test tool, the engine supercharger oil return blowby test tool includes: a tool container, which is a barrel with an upper opening, and the upper end opening cover of the tool container is provided with a container cover; an oil inlet pipe, one end of which is connected to the upper side wall of the tool container, and the other end is connected to a section of the supercharger oil return pipe; an oil return pipe, one end of which is connected to the lower side wall of the tool container, and the other end is connected to another section of the supercharger oil return pipe; an exhaust elbow, one end of which is fixed on the container cover and maintained in communication with the inner cavity of the tool container; the other end of the exhaust elbow is connected to a ventilation hose. The engine supercharger oil return blowby test tool can quickly and accurately test the value of the supercharger oil return blowby and calculate its proportion of the engine crankcase blowby, and evaluate whether the supercharger oil return blowby meets the design requirements.

[0004] However, this tooling can only be used on engines of a single displacement, and the tooling itself has low intelligence and complex structure, and has problems such as low versatility, low intelligence and complex structure. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide an engine oil-gas separation test tool that can automatically test the height of the incoming oil level, has a simple structure, and high versatility. It can be applied to hybrid engine assemblies of different displacements and specifications, thereby meeting different testing needs.

[0006] The utility model solves the above technical problems through the following technical means:

[0007] A tool for testing oil-gas separation of an engine comprises a base assembly, a shell and a test assembly. The shell is fixedly mounted in the base assembly and is used to allow oil and gas generated during the operation of the engine to enter the shell. The test assembly is mounted on the base assembly and is located in the shell and is used to test the amount of return oil leakage entering the shell.

[0008] According to the above technical means, a cavity containing oil and gas is formed by the base assembly and the shell, and the accumulated oil height entering the cavity is tested by the test assembly, so that different oil heights can be tested according to engines of different displacements and specifications, thereby meeting different testing needs.

[0009] Furthermore, the base assembly includes a first base, a second base and a fixing member, the first base and the second base are respectively assembled on two sides of the shell, and the fixing member is fixedly installed on the first base and the second base.

[0010] According to the above technical means, the first base, the second base and the fixing member cooperate to form an installation base for the shell, which has a simple structure and is easy to use.

[0011] Furthermore, a liquid inlet and an exhaust port are fixedly connected to the first base, and the liquid inlet and the exhaust port are staggered, and a liquid discharge port is fixedly connected to the second base.

[0012] According to the above technical means, the liquid inlet, the exhaust port and the liquid discharge port are respectively provided, so as to facilitate the separation of oil and gas in the shell.

[0013] Furthermore, the shell is transparent.

[0014] According to the above technical means, the oil-gas separation situation in the shell can be easily observed through the transparent shell.

[0015] Furthermore, the test assembly includes a mounting shaft and a test piece, wherein the mounting shaft is fixedly mounted on the base assembly and is located in the housing, and the test piece is floatingly mounted on the mounting shaft.

[0016] According to the above technical means, the installation and use of the test piece are facilitated.

[0017] Furthermore, the test piece is slidably arranged on the installation shaft, flexible ropes are fixedly connected to both sides of the test piece, a fixed block is fixedly installed on the installation shaft, and one end of the two flexible ropes are fixedly connected to the fixed block.

[0018] According to the above technical means, the test piece is installed on the installation shaft by means of the cooperation of the flexible rope and the fixing block, so that the test piece is more flexible during the test.

[0019] Furthermore, a scale is provided on the mounting shaft.

[0020] According to the above technical means, by setting a scale on the installation shaft, it is convenient to adjust the position of the test piece according to different specifications, different displacement engines and different testing requirements.

[0021] Furthermore, the test piece is provided with a floating sensor.

[0022] According to the above technical means, by using a floating sensor, the test data can be made more accurate.

[0023] The present application using the above technical solution has the following beneficial effects:

[0024] 1. The base assembly and the shell are used to form a cavity for containing oil and gas, and then the test assembly is used to test the accumulated oil level in the cavity, so that different oil level heights can be tested according to engines of different displacements and specifications, thereby meeting different testing needs and having strong versatility;

[0025] 2. The tooling structure of the present application is simple and easy to use. It can meet different testing requirements. When used with a leakage measuring instrument, it can test piston leakage and supercharger leakage requirements, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0027] Figure 1 It is a structural schematic diagram of a tooling for engine oil-gas separation testing in an embodiment of the present application;

[0028] Figure 2 It is a schematic diagram of the disassembled structure of a tooling for engine oil-gas separation test in an embodiment of the present application;

[0029] Description of main symbols and components:

[0030] 1. First base; 11. Liquid inlet; 12. Exhaust port; 2. Second base; 21. Liquid outlet; 22. Groove; 3. Fixing piece; 31. Long bolt; 32. Nut; 4. Shell; 5. Test assembly; 51. Mounting shaft; 511. Scale; 52. Test piece; 521. Line; 53. Flexible rope; 54. Fixing block. DETAILED DESCRIPTION

[0031] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are only for exemplary descriptions, and they are only schematic diagrams, not physical diagrams, and cannot be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures in the figures and their descriptions may be omitted.

[0032] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the figure. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the figures are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. In the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0033] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0034] like Figure 1-2 As shown, the embodiment of the present application discloses a tool for testing oil-gas separation of an engine, comprising a base assembly, a housing 4 and a test assembly 5. The housing 4 is fixedly assembled in the base assembly, and is used to allow the oil and gas generated during the operation of the engine to enter the housing 4, thereby facilitating oil-gas separation. The test assembly 5 is assembled on the base assembly and located in the housing 4, and is used to test the amount of oil return leakage entering the housing 4.

[0035] In some embodiments, the base assembly includes a first base 1, a second base 2 and a fixing member 3. The first base 1 and the second base 2 are respectively assembled on both sides of the housing 4 to cooperate to form a cavity for oil and gas separation. The fixing member 3 is fixedly mounted on the first base 1 and the second base 2 to fix the cavity and provide a certain seal, with a simple structure and convenient use.

[0036] In this embodiment, if Figure 2As shown, the first base 1 is fixedly connected with a liquid inlet 11 and an exhaust port 12. The liquid inlet 11 is used to be connected to the inlet oil channel and air channel of the hybrid engine through a pipeline; the exhaust port 12 is used to be connected to the leakage measuring instrument through a pipeline, so that the leakage measuring instrument can measure the leakage amount. The liquid inlet 11 and the exhaust port 12 are staggered to prevent the oil and gas entering the housing 4 from being directly discharged through the exhaust port 12. The second base 2 is fixedly connected with a drain port 21 for discharging the accumulated oil in the housing 4.

[0037] In this embodiment, the first base 1 and the second base 2 both have a groove 22 in the middle, and the size of the groove 22 is adapted to the size of the housing 4. On the one hand, the housing 4 can be initially placed on the first base 1 or the second base 2 for easy assembly; on the other hand, a certain sealing effect is provided. To avoid the risk of leakage at the connection, sealing sleeves can be provided at the connection between the two ends of the housing 4 and the first base 1 and the second base 2, respectively.

[0038] In one embodiment, the groove 22 is a stepped groove, the stepped surface contacts the end surface of the shell 4, and the lower part of the stepped surface is used to form a channel with the liquid inlet 11, the exhaust port 12 and the liquid discharge port 21, which is conducive to the smooth entry and discharge of oil and gas.

[0039] In another embodiment, when the liquid inlet 11 and the exhaust port 12 are staggered, there is still a certain height difference, for example, the height dimension of the exhaust port 12 on the first base 1 is 3-5 mm higher than the position of the liquid inlet 11, which is conducive to the separation of oil and gas. In order to improve the separation effect of oil and gas, a grid or a partition plate can be set in the groove 22 of the first base 1, and the liquid inlet 11 and the exhaust port 12 are respectively located on both sides of the grid or the partition plate, and the liquid inlet 11 can also be set tilted downward, and the exhaust port 12 can be set tilted upward to achieve a better separation effect.

[0040] In this embodiment, the first base 1 and the second base 2 are machined from aluminum alloy, and may also be machined from other metal materials, with a diameter of 200-250 mm, preferably 220 mm; a height of 40-60 mm, preferably 50 mm; a diameter of the groove 22 of 130-150 mm, preferably 140 mm; and a depth of the groove 22 of 15-35 mm, preferably 20 mm.

[0041] In this embodiment, the liquid inlet 11, the air outlet 12 and the liquid discharge outlet 21 all use pagoda head standard connectors, which are convenient for connecting pipelines of different models.

[0042] In this embodiment, the fixing member 3 is configured as a long bolt 31 and a nut 32. A plurality of threaded holes are provided on the first base 1 and the second base 2. The plurality of threaded holes are evenly distributed, preferably four. The four long bolts 31 respectively pass through the threaded holes on the first base 1 and the second base 2, and are then tightened by the nut 32, thereby fixing the first base 1, the second base 2 and the shell 4 into a whole.

[0043] In some embodiments, the fixing member 3 can be configured as a bayonet, and a plurality of bayonet holes are provided on the first base 1 and the second base 2, and the plurality of bayonet holes are evenly distributed, preferably four, and the four bayonet pins pass through the bayonet holes on the first base 1 and the second base 2 respectively, and then the bayonet pins are clamped by a clip, thereby fixing the first base 1, the second base 2 and the shell 4 into a whole. In actual situations, other fixing methods can also be selected to fix the first base 1, the second base 2 and the shell 4 into a whole.

[0044] In this embodiment, the housing 4 is transparent and hollow cylindrical, and the oil-gas separation in the housing 4 can be easily observed through the transparent housing 4. The housing 4 can be made of transparent plastic material, such as acrylic plate, etc., or tempered glass.

[0045] In this embodiment, if Figure 2 As shown, the test assembly 5 includes a mounting shaft 51 and a test piece 52. The mounting shaft 51 is fixedly mounted on the base assembly and is located in the housing 4, and the test piece 52 is floatingly mounted on the mounting shaft 51. By floatingly mounting the test piece 52 on the mounting shaft 51, on the one hand, it is convenient to install and use the test piece 52, and on the other hand, it is convenient to adjust the position of the test piece 52 according to different specifications and different test requirements.

[0046] In some embodiments, the test piece 52 is slidably disposed on the mounting shaft 51, and flexible ropes 53 are fixedly connected to both sides of the test piece 52. A fixed block 54 is fixedly mounted on the mounting shaft 51, and one end of the two flexible ropes 53 is fixedly connected to the fixed block 54. Through the cooperation of the flexible ropes 53 and the fixed block 54, the test piece 52 can float along the mounting shaft 51, making the test piece 52 more flexible during testing.

[0047] In this embodiment, the flexible rope 53 can be a flexible plastic rope or an oil-proof cloth rope. One end of the flexible rope 53 is fixedly connected to one end of the test piece 52 , and the other end is fixedly connected to the fixed block 54 .

[0048] In this embodiment, a scale 511 is provided on the mounting shaft 51. By providing the scale 511 on the mounting shaft 51, it is convenient to adjust the position of the test piece 52 according to different specifications, different displacement engines and different testing requirements, and the practicality is strong.

[0049] In this embodiment, the test piece 52 is a floating sensor. By using a floating sensor, the test data is more accurate and is not easily affected by oil and gas shocks and generates erroneous signals. In actual situations, the test piece 52 can also be a sensor such as a float sensor that can achieve the same function.

[0050] In this embodiment, when in use, the liquid inlet 11 on the first base 1 is connected to the inlet oil channel and the air channel of the hybrid engine through a pipeline; the liquid discharge port 21 on the second base 2 is connected to the outlet oil channel and the air channel of the hybrid engine through a pipeline, the belt float sensor is connected to the console through a line 521, and the exhaust port 12 is connected to the leakage measuring instrument through a pipeline; the hybrid engine is restarted, so that the oil and gas leaked from the hybrid engine enter the housing 4, the oil accumulates in the lower part of the housing 4, and the gas is discharged through the exhaust port 12. When the gas is discharged, the leakage amount of the hybrid engine can be measured by the leakage measuring instrument; when the oil in the housing 4 accumulates to a certain amount and drives the belt float sensor to float upward, the belt float sensor sends a signal through the line 521, so that the oil pump in the crankcase of the hybrid engine works to draw the accumulated oil in the housing 4 back to the crankcase.

[0051] In this embodiment, the tool can also be used for testing the oil return leakage of a crankcase and a supercharger, and has a wide range of applications.

[0052] The above is a detailed introduction to a tooling for engine oil-gas separation testing provided by the present application. The description of the specific embodiment is only used to help understand the method and its core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present utility model.

[0053] It should be noted that the phrases "one embodiment", "embodiment", "some optional embodiments", "exemplary embodiments", "some embodiments", etc. mentioned in the specification indicate that the described embodiment may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0054] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model. The technology, shape, and structure that are not described in detail in the utility model are all well-known technologies.

Claims

1. A tool for testing oil-gas separation of an engine, characterized in that: The invention comprises a base assembly, a shell (4) and a test assembly (5); the shell (4) is fixedly mounted in the base assembly and is used to allow oil and gas generated during the operation of the engine to enter the shell (4); the test assembly (5) is mounted on the base assembly and is located in the shell (4) and is used to test the amount of oil return leakage entering the shell (4).

2. The tooling for testing the oil-gas separation of an engine according to claim 1, characterized in that: The base assembly comprises a first base (1), a second base (2) and a fixing member (3); the first base (1) and the second base (2) are respectively assembled on two sides of a shell (4); and the fixing member (3) is fixedly mounted on the first base (1) and the second base (2).

3. The tooling for engine oil-gas separation testing according to claim 2, characterized in that: The first base (1) is fixedly connected with a liquid inlet (11) and an exhaust port (12), wherein the liquid inlet (11) and the exhaust port (12) are staggered, and the second base (2) is fixedly connected with a liquid discharge port (21).

4. The tooling for testing the oil-gas separation of an engine according to claim 1, characterized in that: The shell (4) is transparent.

5. The tooling for testing the oil-gas separation of an engine according to claim 1, characterized in that: The test assembly (5) comprises a mounting shaft (51) and a test piece (52); the mounting shaft (51) is fixedly mounted on the base assembly and is located in the housing (4); and the test piece (52) is floatingly mounted on the mounting shaft (51).

6. The tooling for testing the oil-gas separation of an engine according to claim 5, characterized in that: The test piece (52) is slidably arranged on the installation shaft (51), and flexible ropes (53) are fixedly connected to both sides of the test piece (52). A fixed block (54) is fixedly installed on the installation shaft (51), and one end of the two flexible ropes (53) is fixedly connected to the fixed block (54).

7. The tooling for testing the oil-gas separation of an engine according to claim 5, characterized in that: The installation shaft (51) is provided with a scale (511).

8. The tooling for testing the oil-gas separation of an engine according to claim 5, characterized in that: The test piece (52) is provided with a floating sensor.

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