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EFFICIENCY TESTER FOR LIFTER OF OIL PRESSURE VALVE
EFFICIENCY TESTER FOR LIFTER OF OIL PRESSURE VALVE
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机译：油压阀提升效率测试仪
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摘要
It is an object of the present invention to provide a performance measuring device for a hydraulic valve lifter which can reduce the time and cost of product development by measuring the recovery of normal performance after the sponge phenomenon occurs due to the inflow of air into the hydraulic valve lifter.;In order to achieve the above object, the present invention is provided with a concave groove for receiving a hydraulic valve lifter, an oil supply hole formed so as to communicate with the oil distribution hole of the hydraulic valve lifter accommodated in the concave groove to supply oil from the outside; A fixing jig; A lower lifter which is accommodated in the groove and pressurizes an operation body of the hydraulic valve lifter protruding upward; An upper lifter engaged with the lower lifter in a structure capable of changing a gap therebetween; A return spring interposed between the upper and lower lifters and being elastic; A cam for operating the upper lifter up and down; And a driving device for rotating the cam; Characterized in that comprises a.
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