Diesel engine sealing oil control unit flow testing device and method
A technology of flow test device and control unit, which is applied in the direction of measuring device, internal combustion engine test, engine test, etc., can solve the problem of not performing flow test, etc., and achieve the effect that the test device is completely reliable
Pending Publication Date: 2021-03-16
CHONGQING HONGJIANG MACHINERY
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Problems solved by technology
The problems of domestic products have been exposed after the realization of localization in recent years: the domestic seal oil control unit only conducts functional tests before leaving the factory, and no flow test is performed
The technical scheme disclosed in this patent document is a beneficial attempt in the technical field
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[0030] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0031] see figure 1 , figure 2 and image 3 A diesel engine seal oil control unit flow testing device shown includes a mechanical reversing mechanism, a hydraulic system connected to the mechanical reversing mechanism, and a controller electrically connected to the mechanical reversing mechanism and the hydraulic system, and is characterized by:
[0032] The mechanical reversing mechanism includes a miniature direct-current speed-regulating motor 11 installed on the motor base 10, an eccentric wheel 12 that is connected to the deletion end of the micro-direct-current speed-regulating motor, and also includes a two-position four-way valve 14 and a top that is connected with it. Rod 13, the free end of the ejector rod 13 is in close contact with the eccentric wheel 12; the miniature DC speed regulating motor drives the eccentric wheel to rotate, and every time the e...
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The invention relates to a diesel engine sealing oil control unit flow testing device. The diesel engine sealing oil control unit flow testing device comprises a mechanical reversing mechanism, a hydraulic system connected with the mechanical reversing mechanism and a controller electrically connected with the mechanical reversing mechanism and the hydraulic system. The mechanical reversing mechanism comprises a micro direct-current speed regulating motor installed on a motor base, an eccentric wheel connected to a deleting end of a micro direct-current speed regulating motor in a matched mode, a two-position four-way valve and an ejector rod connected with the two-position four-way valve in a matched mode, and the free end of the ejector rod abuts against the eccentric wheel. The hydraulic system comprises an oil pump motor and a plunger pump. High-pressure oil output by the plunger pump is communicated with an input port P of the two-position four-way valve through an oil pipe and afine filter. An oil inlet C of the tested sealing oil control unit is communicated with an output port A of the two-position four-way valve through the oil pipe. The invention further provides a diesel engine sealing oil control unit flow testing method. The flow of the sealing oil control unit can be detected and adjusted, and a lubricating requirement of an exhaust valve rod of a low-speed diesel engine is met.
Description
technical field [0001] The invention relates to a diesel engine lubricating system, in particular to a diesel engine sealing oil control unit flow testing device and testing method. Background technique [0002] The sealing oil control unit of the exhaust valve mechanism of the diesel engine can test the sealing performance of the valve stem and the shaft sleeve sealing ring according to the amount of oil leaked out. At the same time, the sealing here is mainly to prevent the exhaust gas in the exhaust chamber from leaking upward and the air in the air cylinder from leaking out, so as to avoid the failure of opening and closing the exhaust valve. The sealing oil control unit is one of the important units in the low-speed diesel engine lubrication system, and most of them are imported from abroad. After the localization in recent years, the problems of domestic products have been exposed: the domestic seal oil control unit only conducts functional tests before leaving the fa...
Claims
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Login to View More IPC IPC(8): G01M15/04
CPCG01M15/042
Inventor 冼则良朱奎杨宇坤宋建李野郑石兵张重周科陈明汪波
Owner CHONGQING HONGJIANG MACHINERY