Vehicle oil tube fuel oil permeability test device

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 ...

AI Technical Summary

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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