Electronic control VE type distribution pump and a flameout method thereof

Abstract

The invention discloses an electronic control VE type distribution pump and a flameout method thereof. The electronic control VE type distribution pump comprises an oil pump assembly, an oil inlet pipe and an oil inlet screw, wherein an oil inlet of a pump body of the oil pump assembly is connected with the oil inlet screw, the oil inlet screw is connected to one end of the oil inlet pipe, the other end of the oil inlet pipe is connected to an oil tank, an oil inlet electromagnetic valve is arranged on a pump head of the oil pump assembly, an oil inlet hole, an oil outlet hole and a guide holewhich is formed between the oil inlet hole and the oil outlet hole are formed in the oil inlet screw, an oil cut-off electromagnetic valve is arranged at the upper part, located at of the guide hole,in the oil inlet screw, and an armature of the oil cut-off electromagnetic valve is arranged in the guide hole to move back and forth so as to enable the oil inlet hole and the oil outlet hole of theoil inlet screw to communicate with each other or to be closed. According to the electronic control VE type distribution pump and the flameout method thereof, the oil inlet screw is designed to be the provided with the oil cut-off electromagnetic valve capable of cutting off oil inlet of the electronic control VE type distribution pump, when the electromagnetic valve is powered off, oil inlet ofthe electronic control VE type distribution pump can be cut off, and by means of the coordination of the power failure and oil cut-off of an oil inlet electromagnetic valve of the pump head, the powerfailure of the electronic control VE type distribution pump can be realized so that an engine can be rapidly stopped.

Description

technical field [0001] The invention discloses an electronically controlled VE distribution pump and a flame-out method thereof, belonging to the field of electronically controlled VE distribution pumps. Background technique [0002] Since the electronically controlled VE distribution pump was applied to non-road engines, the market has reported many problems that the engine cannot be turned off after the oil pump is powered off. [0003] The electronically controlled VE type distribution pump adopts the oil inlet solenoid valve to control the oil stop. The oil inlet solenoid valve is installed on the upper end of the oil inlet of the plunger distribution sleeve. When the diesel engine is started, the oil inlet solenoid valve is connected to the power supply to open the oil passage. When the diesel engine needs to be stopped, as long as the power supply of the oil inlet solenoid valve is cut off, the diesel engine will stop working. But the high-pressure chamber of the elec...

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Problems solved by technology

[0004] In view of the above technical problems, the present invention proposes an electronically controlled VE distribution pump, the purpose of which is to solve the problem that the engine does not turn off when the electric control VE type distribution pump is powered off, and to ensure that the engine is quickly turned off after the power is turned off

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