Vehicle oil tube fuel oil permeability test device

A technology of fuel permeability and testing equipment, which is applied in the direction of material absorption and weighing, which can solve the problems of large size, long test time and high cost of vehicle oil pipes, and achieve the effects of convenient installation, shortened test cycle, and accurate test results

Inactive Publication Date: 2012-12-12
招商局检测车辆技术研究院有限公司
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Problems solved by technology

At present, the most ideal technology for measuring vehicle hydrocarbon emissions in the world is the airtight chamber method (SHED) measurement technology. Due to its high precision and stable test, this method has great advantages in vehicle testing. However, due to the airtight chamber method test system It is huge and very expensive, and must rely on imports, and the test time of the oil pipe for vehicles is relatively long, so the cost of testing the permeability of oil pipes for vehicles with the closed chamber method is unacceptable for oil pipe manufacturers

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  • Vehicle oil tube fuel oil permeability test device

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Embodiment Construction

[0015] The accompanying drawing is a schematic structural view of the present invention, the oil pipe fuel permeability test equipment for vehicles, including a fuel pipe sample 4 and an oil circuit circulation and a gas circuit circulation, and the oil circuit circulation includes a fuel pipe sample 4, and a fuel container 5, The two ends of the fuel pipe sample 4 are respectively connected to the oil inlet and outlet pipes of the fuel container 5 through oil pipes, and an oil pump is arranged in the oil circuit circulation, so that the fuel can pass through the fuel pipe sample continuously. A nitrogen tank 9 and a sealed box 3 connected to the nitrogen tank 9, the sealed box 3 is connected to the collector 6 through a gas pipe, and one end of the collector 6 is also connected to a dehumidifier 7, and then connected to the atmosphere. The fuel pipe sample 4 is arranged in the sealed box 3. When the fuel continuously passes through the fuel pipe sample, the nitrogen gas will b...

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Abstract

The invention relates to a vehicle oil tube fuel oil permeability test device. The test device which comprises an oil tube test sample piece is characterized in that the test device also comprises an oil way cycle and a gas way cycle; the oil tube test sample piece is connected to the cycle oil way; and the oil tube sample piece is arranged in the gas way cycle. The test device realizes a high-precision vehicle oil tube permeation test process with a low test cost. The system of the test device is convenient to mount, and test operations of the system are simple and are easy to implement. A tester can momentarily monitor a plurality of parameters comprising the temperature, the pressure and the like of the test system. The test system enables hundreds of hours of a continuous test to be carried out to realize the collection of long-term changed data of the oil tube permeability, and provides the data basis for the research and the development of vehicle oil tubes of enterprises.

Description

Technical field [0001] The invention belongs to the quality detection technology of auto parts products, and in particular relates to a fuel oil permeability test equipment for oil pipes used in vehicles. Background technique [0002] Fuel evaporative emission is an important part of gasoline vehicle emission pollution sources, and it is also an emission source strictly controlled by the state for motor vehicle fuel evaporative emissions. Fuel penetration emission from vehicle fuel pipes is one of the main channels of fuel evaporative emissions from gasoline vehicles. At present, domestic fuel evaporation tests are all tests for motor vehicles, and there is no testing equipment for testing the fuel penetration rate of vehicle fuel pipes alone. With the gradual improvement of the control level of motor vehicle emissions, various sources of fuel evaporative emissions have become the focus of research. The separate test for the fuel permeability of vehicle fuel pipes will help ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/02
Inventor 郑山亭赵永刚姚建林刘亚飞刘剑
Owner 招商局检测车辆技术研究院有限公司
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