Vehicle diesel engine oil and gas separator test apparatus and method thereof

The technology of an oil-gas separator and a test device, which is applied in the field of vehicle inspection, can solve problems such as unfavorable development and difficult realization by manufacturers of diesel engine parts, and achieve the effects of being beneficial to the development of the industry, having a simple structure and improving the experimental efficiency.

Inactive Publication Date: 2012-04-25
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, matching a diesel engine as an oil-air mixture source requires a complex engine test bench, which makes it difficult for many diesel engine parts manufacturers to achieve, which is not conducive to the development of the industry

Method used

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  • Vehicle diesel engine oil and gas separator test apparatus and method thereof
  • Vehicle diesel engine oil and gas separator test apparatus and method thereof
  • Vehicle diesel engine oil and gas separator test apparatus and method thereof

Examples

Experimental program
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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Such as figure 1 As shown, the vehicle diesel engine oil-air separator experimental system includes: air filter 1, flow meter 2, oil-air mixing box 3, oil drain plug 4, heater 5, fuel injector 6, oil collecting cup 7, oil-air separator 8 , Temperature controller 9, first particle counter 10, first pressure gauge 11, second pressure gauge 12, second particle counter 13, absolute filter 14, throttle valve 15, overflow valve 16, vacuum pump 17.

[0025] The outlet of the air filter 1 is connected to one end of the flow meter 2 to provide clean air for the test; the other end of the flow meter 2 is connected to the input port of the oil-air mixing box 3 for monitoring the air flow, and the oil-air mixing box 3 The input port of the oil-gas mixing box 3 is set at the bottom; the bottom of the oil-gas mixing box 3 is provided with a drain plug 4, which is used to dis...

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Abstract

The invention discloses a vehicle diesel engine oil and gas separator test apparatus and a method thereof. In the invention, an outlet port of an air cleaner is connected with one end of a flowmeter. The other end of the flowmeter is connected with an input port of an oil gas mixing box. A sidewall of the oil gas mixing box is provided with a fuel injector and a heater. A temperature controller is provided outside the oil gas mixing box. A pipeline from an outlet port of the oil gas mixing box to an air intake of an oil and gas separator is provided with a first particle counter and a first pressure gauge in order. A pipeline from an air outlet of the oil and gas separator to an input port of an absolute cleaner is provided with a second compression gauge and a second particle counter in order. An outlet port of the absolute cleaner is connected with one end of a throttle valve. The other end of the throttle valve is connected with a vacuum pump. A pipeline between the throttle valve and the vacuum pump is provided with an overflow valve. In the invention, oil gas mixing is carried out with only a simple oil injection apparatus, through adjusting fuel injection quantity, gas mixture concentration is controlled well, an experiment requirement is reached, and credibility of an experiment is ensured.

Description

technical field [0001] The invention belongs to the technical field of vehicle detection, and relates to a test device and method for an oil-gas separator for a vehicle diesel engine. Background technique [0002] The oil-air separator is one of the important parts of the engine, and it is a key part of the oil-air separation effect in the crankcase ventilation system. Especially with the increasingly stringent vehicle emission regulations, vehicle engines have gradually adopted closed crankcase ventilation systems. The performance of the oil and gas separator will seriously affect the engine exhaust emission index. Therefore, it is necessary to conduct experiments on the performance of the oil-gas separator. [0003] At present, the recognized test program for diesel engine crankcase oil-air separator is the test method specified in the national industry standard QC / T 812-2009. QC / T 812-2009 stipulates that the matching diesel engine is used as the source of oil-air mixt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007
Inventor 刘忠民刘开黎聪
Owner HANGZHOU DIANZI UNIV
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