CN220893701U - Engine assembly supercharger air leakage testing device - Google Patents
Engine assembly supercharger air leakage testing device Download PDFInfo
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- CN220893701U CN220893701U CN202322884915.0U CN202322884915U CN220893701U CN 220893701 U CN220893701 U CN 220893701U CN 202322884915 U CN202322884915 U CN 202322884915U CN 220893701 U CN220893701 U CN 220893701U
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- gas separation
- separation cavity
- air leakage
- supercharger
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 238000000926 separation method Methods 0.000 claims abstract description 56
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 abstract description 15
- 239000010705 motor oil Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model belongs to the technical field of engine assembly testing, and particularly relates to an air leakage testing device for a supercharger of an engine assembly. Comprising the following steps: the oil-gas separation cavity is connected with an oil outlet of the supercharger; the detector is connected with the oil-gas separation cavity and is used for detecting air leakage; the variable pump is connected with the oil-gas separation cavity and used for keeping the liquid level in the oil-gas separation cavity within a preset height; the liquid level monitoring assembly is arranged in the oil-gas separation cavity and is electrically connected with the variable pump. The purpose is that: the problem of current testing arrangement is in the test process, when the engine oil flow is too big, probably has partial liquefaction engine oil directly to follow the gas outlet discharge of separation chamber, leads to the measuring result inaccurate to the air leakage is solved.
Description
Technical Field
The utility model belongs to the technical field of engine assembly testing, and particularly relates to an air leakage testing device for a supercharger of an engine assembly.
Background
In the actual working process of the engine assembly, certain air leakage exists, mainly the air entering the crankcase through the air leakage channel, and other sources are as follows: gas flowing into the crankcase from the gap between the valve stem and the valve guide, gas flowing into the crankcase through the supercharger bearing and the seal ring gap through the oil return pipe, and the like.
The gas entering the crankcase through the supercharger bearing and the sealing ring clearance and passing through the oil return pipe accounts for about 6% -17% of the air leakage of the engine, and is an important factor affecting the air leakage of the engine. Because the booster air leakage test is difficult, when the piston air leakage test is unqualified, the piston and the piston ring can be optimized, so that the optimization difficulty and the cost are often increased.
Chinese patent CN203758695U discloses a device for measuring air leakage of supercharger, which directly detects the air leakage of the supercharger by gas-liquid separation of engine oil through a special separation chamber directly connected with the supercharger. However, when the oil flow is too large, part of the liquefied oil may be directly discharged from the air outlet of the separation chamber, resulting in inaccurate detection results of the air leakage.
Disclosure of utility model
The purpose of the utility model is that: the utility model provides an engine assembly booster air leakage testing arrangement for solve current testing arrangement in the testing process, when the engine oil flow is too big, probably have partial liquefaction engine oil directly to follow the gas outlet discharge of separation chamber, lead to the inaccurate problem of testing result to the air leakage.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
An engine assembly supercharger air leakage testing device, comprising:
The oil-gas separation cavity is connected with an oil outlet of the supercharger;
The detector is connected with the oil-gas separation cavity and is used for detecting air leakage;
The variable pump is connected with the oil-gas separation cavity and used for keeping the liquid level in the oil-gas separation cavity within a preset height;
the liquid level monitoring assembly is arranged in the oil-gas separation cavity and is electrically connected with the variable pump.
Preferably, the liquid level monitoring assembly comprises a liquid level sensor and a control console, wherein the liquid level sensor is arranged in the oil-gas separation cavity, the liquid level sensor is electrically connected with the control console, and the control console is electrically connected with the variable pump. The liquid level sensor is used for monitoring the liquid level in the oil-gas separation cavity, so that the liquid level cannot overflow the air outlet.
Preferably, the liquid level sensor is a floating sensor. By means of the floating sensor which rises and falls along with the liquid level, the liquid level in the separation cavity is monitored more accurately.
Preferably, the preset height is 2/5 to 3/5 of the height of the oil-gas separation cavity. The arrangement is beneficial to improving the oil-gas separation effect.
Preferably, the detector is a leakage tester, an air outlet is formed in one side of the oil-gas separation cavity, the air outlet is higher than the preset height, and the leakage tester is communicated with the air outlet through a pipeline. The arrangement is beneficial to directly detecting the air leakage through the air leakage meter.
Preferably, the top of the oil-gas separation cavity is provided with a liquid inlet, the bottom of the oil-gas separation cavity is provided with a liquid return port, the supercharger is arranged on the engine assembly, and an oil inlet of the supercharger is communicated with an oil pan of the engine assembly;
One end of the variable pump is communicated with the liquid return port through a pipeline, and the other end of the variable pump is communicated with the oil drain bolt hole of the engine assembly through a pipeline. The arrangement is beneficial to the circulation of engine oil in a loop, and the air leakage of the supercharger is conveniently detected.
The utility model adopting the technical scheme has the following advantages:
1. In the scheme, the floating sensor detects the liquid level height in the oil-gas separation cavity, converts the liquid level height into an electric signal, sends the electric signal to the control console, and controls the flow of the variable pump by the control console, so that the liquid level in the oil-gas separation cavity is kept within a preset height, the liquid level of liquid engine oil is always below an air outlet, all the air is discharged from the air outlet, and the air leakage detection of the supercharger is more accurate;
2. In this scheme, preset high setting is 2/5 to 3/5 of oil-gas separation chamber height, reserves sufficient space on the upper portion of oil-gas separation chamber, and the engine oil of convenient gasification fully separates, makes the air leakage testing result more accurate.
Drawings
The utility model can be further illustrated by means of non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic diagram of an embodiment of a device for testing the air leakage of a supercharger of an engine assembly according to the present utility model;
The main reference numerals are as follows:
1. An oil-gas separation chamber; 2. a leakage meter; 3. a variable displacement pump; 4. a liquid level sensor; 5. a console; 6. a supercharger.
Detailed Description
The present utility model will be described in detail below with reference to the drawings and the specific embodiments, wherein like or similar parts are designated by the same reference numerals throughout the drawings or the description, and implementations not shown or described in the drawings are in a form well known to those of ordinary skill in the art. In addition, directional terms such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", etc. in the embodiments are merely directions with reference to the drawings, and are not intended to limit the scope of the present utility model.
As shown in FIG. 1, the utility model relates to an engine assembly supercharger air leakage testing device, which comprises an engine assembly, a supercharger 6, an oil-gas separation cavity 1 and a variable pump 3 which are sequentially connected, wherein the variable pump 3 is connected with the engine assembly to form a circulation, gasified engine oil is separated from the oil-gas separation cavity 1, and the air leakage of the supercharger 6 is detected.
In the embodiment, a supercharger 6 is arranged on an engine assembly, an oil inlet of the supercharger 6 is communicated with an oil pan of the engine assembly, and an oil outlet of the supercharger 6 is connected with a liquid inlet arranged at the top of an oil-gas separation cavity 1 through a pipeline;
One end of the variable pump 3 is communicated with a liquid return port arranged at the bottom of the oil-gas separation cavity 1 through a pipeline, and the other end of the variable pump is communicated with an oil drain bolt hole of the engine assembly through a pipeline. When the engine assembly is started, engine oil can form a circulation loop, and the air leakage of the supercharger 6 is detected at the oil-gas separation cavity 1 through a detector connected with the oil-gas separation cavity 1.
In this embodiment, be provided with the liquid level monitoring subassembly in the oil-gas separation chamber 1, the liquid level monitoring subassembly includes liquid level sensor 4 and control cabinet 5, and liquid level sensor 4 sets up in oil-gas separation chamber 1, and liquid level sensor 4 is connected with control cabinet 5 electricity, and control cabinet 5 is connected with variable pump 3 electricity.
It will be appreciated that the liquid level sensor 4 may be a floating sensor, which is more accurate in monitoring the change in liquid level in the oil and gas separation chamber 1. In other embodiments of the application, the liquid level sensor 4 may also be a capacitive liquid level sensor 4 or an ultrasonic liquid level sensor 4.
In the embodiment, the detector is a leakage tester 2, one side of the oil-gas separation cavity 1 is provided with an air outlet, the air outlet is higher than a preset height, and the leakage tester 2 is communicated with the air outlet through a pipeline. In other embodiments of the application, the detector may also be a gas flow meter.
The liquid level in the oil-gas separation cavity 1 is detected through the liquid level sensor 4, the position signal is converted into an electric signal and sent to the control console 5, the control console 5 controls the flow of the variable pump 3 according to the liquid level condition in the oil-gas separation cavity 1, and the liquid level in the oil-gas separation cavity 1 is kept in a preset height. The liquid level of the liquid engine oil is always below the air outlet, the air is discharged from the air outlet, and the air leakage detection of the supercharger 6 is more accurate.
It is understood that the preset height is 2/5 to 3/5 of the height of the oil and gas separation chamber 1. Enough space is reserved at the upper part of the oil-gas separation cavity 1, so that gasified engine oil can be separated fully, and the detection result of air leakage is more accurate. In this embodiment, the preferred preset height is 1/2 of the height of the oil-gas separation chamber 1, which is more favorable for the separation of gasified engine oil.
The utility model provides the device for testing the air leakage of the supercharger of the engine assembly. The description of the specific embodiments is only intended to aid in understanding the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (6)
1. An engine assembly booster air leakage testing arrangement, its characterized in that: comprising the following steps:
the oil-gas separation cavity (1), the oil-gas separation cavity (1) is connected with an oil outlet of the supercharger (6);
The detector is connected with the oil-gas separation cavity (1) and is used for detecting air leakage;
The variable pump (3) is connected with the oil-gas separation cavity (1) and is used for keeping the liquid level in the oil-gas separation cavity (1) within a preset height;
the liquid level monitoring assembly is arranged in the oil-gas separation cavity (1) and is electrically connected with the variable pump (3).
2. The engine assembly supercharger air leakage testing device of claim 1, wherein: the liquid level monitoring assembly comprises a liquid level sensor (4) and a control console (5), wherein the liquid level sensor (4) is arranged in the oil-gas separation cavity (1), the liquid level sensor (4) is electrically connected with the control console (5), and the control console (5) is electrically connected with the variable pump (3).
3. The engine assembly supercharger air leakage testing device of claim 2, wherein: the liquid level sensor (4) is a floating sensor.
4. The device for testing the air leakage of the supercharger of the engine assembly according to claim 1, wherein the preset height is 2/5 to 3/5 of the height of the oil-gas separation cavity (1).
5. The device for testing the air leakage of the supercharger of the engine assembly according to claim 1, wherein the detector is an air leakage meter (2), an air outlet is formed in one side of the oil-gas separation cavity (1), the air outlet is higher than the preset height, and the air leakage meter (2) is communicated with the air outlet through a pipeline.
6. The engine assembly supercharger air leakage testing device of claim 1, wherein: the top of the oil-gas separation cavity (1) is provided with a liquid inlet, the bottom of the oil-gas separation cavity (1) is provided with a liquid return port, the supercharger (6) is arranged on the engine assembly, and an oil inlet of the supercharger (6) is communicated with an oil pan of the engine assembly;
One end of the variable pump (3) is communicated with the liquid return port through a pipeline, and the other end of the variable pump is communicated with an oil drain bolt hole of the engine assembly through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322884915.0U CN220893701U (en) | 2023-10-26 | 2023-10-26 | Engine assembly supercharger air leakage testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322884915.0U CN220893701U (en) | 2023-10-26 | 2023-10-26 | Engine assembly supercharger air leakage testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220893701U true CN220893701U (en) | 2024-05-03 |
Family
ID=90876914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322884915.0U Active CN220893701U (en) | 2023-10-26 | 2023-10-26 | Engine assembly supercharger air leakage testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220893701U (en) |
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2023
- 2023-10-26 CN CN202322884915.0U patent/CN220893701U/en active Active
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