Plunger type oil spraying pump achieving variable oil supply under multiple working conditions

Abstract

The invention provides a plunger type oil spraying pump achieving variable oil supply under multiple working conditions. The plunger type oil spraying pump mainly comprises a plunger and barrel assembly, an oil adjusting device composed of a rack, a gear and a rotating shaft, a driving selecting device composed of a driving frame, a top plate and a top plate stirring rod, an auxiliary driving device composed of a guide plate, a wheel frame and a wheel, and a double-speed-cam driving device composed of a driving shaft, a low-speed cam and a high-speed cam. The plunger type oil spraying pump achieving variable oil supply under the multiple working conditions is characterized in that variable oil supply under the multiple working conditions is achieved through three kinds of chutes, the high-speed cam and the low-speed cam. Multi-working condition adjustment on the effective stroke of a plunger is achieved through the three kinds of chutes in the side face of the plunger, in other words, fine adjustment and buffered oil spraying are achieved through the double-curve type chute, convenient linear adjustment and accurate control are achieved through the linear chute, and rapid emergency adjustment is achieved through the fast-opened chute. Positioning of the three kinds of chutes is achieved through a magnetic block at the position of a notch of the gear and a magnetic strip on a plunger sleeve. The oil pumping frequency is adjusted through the high-speed cam and the low-speed cam on the driving shaft, and variable oil supplying under the multiple working conditions is achieved.

Description

technical field [0001] The invention relates to a plunger type fuel injection pump with variable oil supply in multiple working conditions, in particular to a multi-working condition adjustment of the effective stroke of the plunger through three kinds of chute on the side of the plunger; through the hyperbolic chute , to realize the fine adjustment of the effective stroke of the plunger and buffer oil injection; through the linear chute, to realize the convenient linear adjustment and precise control of the effective stroke of the plunger; through the quick opening chute, to realize the rapid emergency adjustment of the effective stroke of the plunger; through The magnetic block at the gap of the gear and the magnetic strip on the plunger sleeve realize the positioning of three kinds of chute; through the low-speed cam and high-speed cam on the drive shaft, the pumping frequency of the plunger-type fuel injection pump is adjusted to realize multi-working conditions The variab...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the fixed and non-adjustable shape of the plunger chute, which is common in the use of the existing plunger type fuel injection pump, and the variable adjustment of the effective stroke of the plunger under multiple working conditions cannot be realized, and the oil pumping frequency is fixed and the multitasking cannot be realized. In order to solve the problems of variable fuel supply under different conditions, a plunger fuel injection pump with variable fuel supply under multiple working conditions is provided, which can effectively solve the above problems.

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