A fatigue test device for vvt engine piston

A fatigue test and engine technology, which is applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., can solve the problems of inaccurate test data, large local wear of the piston, and large force on the piston, and achieve test data Accurate, sure-fire, easy-to-use results
CN103868684BActive Publication Date: 2019-03-05ZHEJIANG FUJIEDE AUTOMOTIVE SYST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG FUJIEDE AUTOMOTIVE SYST CO LTD
Publication Date
2019-03-05

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Abstract

The invention provides a fatigue test device for a VVT (Variable Valve Timing) engine piston and belongs to the technical field of engine test equipment. The problem that the test data of the present fatigue test device is not accurate enough is solved. The fatigue test device for the VVT engine piston comprises a frame, wherein a first cam is in rotating connection with the frame through a rotating shaft; a connecting shaft is vertically connected with a side face of the first cam; a distance-adjusting structure is arranged between the connecting shaft and the cam; a sleeve is fixedly connected with the frame; the rotating shaft is connected with a driving structure; a detecting structure for detecting the coaxiality of a cylinder sleeve and the piston is also arranged on the frame; an adjusting structure for adjusting the coaxiality of the cylinder sleeve and the piston is arranged on the sleeve and the connecting shaft. The fatigue test device for the VVT engine piston can be used for performing a fatigue test under the condition that the coaxiality of the cylinder sleeve and the piston is ensured. The accuracy of the test data is increased.
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Description

technical field

[0001] The invention belongs to the technical field of engine test equipment, and relates to a fatigue test device for VVT engine pistons. Background technique

[0002] With the improvement of living standards and the acceleration of the pace of life, cars have become an indispensable means of transportation and means of transportation in life. In the complex structure of cars, the engine is the heart of the car, providing power for the walking of the car, which is related to the car. Power, economy, and environmental protection. To put it simply, the engine is an energy conversion mechanism, that is, the thermal energy of gasoline (diesel) or natural gas is converted into mechanical energy by pushing the piston to do work through the expansion of the combustion gas in the sealed cylinder. This is the most basic principle of the engine. With the improvement of the level of science and technology, technicians are constantly improving the engine, and then VVT ...

Claims

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