Position-changeable self-adaptive switch double-passage energy-saving reciprocation oil feeding device

Abstract

The invention discloses a position-changeable self-adaptive switch double-passage energy-saving reciprocation oil feeding device. The device comprises an oil feeding device and an electrical control system. The oil feeding device comprises an oil tank, filters, a reciprocation oil feeding pump and an electrically-controlled oil ejector. The reciprocation oil feeding pump is composed of a piston rod, a piston and an oil feeding cavity. The oil feeding cavity is divided into a left oil feeding cavity A and a right oil feeding cavity B through the piston. An oil feeding passage af is arranged inthe left oil feeding cavity A. An oil feeding passage gm is arranged in the right oil feeding cavity B. A position-changeable valve is arranged at the lower end of the reciprocation oil feeding pump.The filters and the oil tank are connected to the lower end of the position-changeable valve successively. Switching valves and the electrically-controlled oil ejector are connected successively to the upper end of the reciprocation oil feeding pump. The switching valves and the electrically-controlled oil ejector are connected with a controller through circuits. The position-changeable self-adaptive switch double-passage energy-saving reciprocation oil feeding device is simple in structure, safe and reliable in oil feeding, high in efficiency, good in performance, low in device vibration noise and long in service life and has good economic benefits and energy-saving effects.

Description

technical field [0001] The invention relates to an engine oil supply device, in particular to a variable position self-adaptive switching dual-channel energy-saving reciprocating oil supply device. Background technique [0002] In the traditional engine fuel supply device, when the crankshaft of the engine rotates continuously at a certain speed, the camshaft of the fuel injection pump is driven to rotate continuously through gear meshing, so that the fuel is sucked out from the fuel tank, filtered by the filter, and the fuel injection pump is pressurized, and the clean The fuel with higher pressure is sent to the fuel injector, and is directly injected into the engine cylinder at a certain fuel injection pressure and fuel injection rate; the excess fuel delivered by the fuel injection pump flows back to the fuel tank through the fuel return pipe; The oil pump camshaft is driven by the engine crankshaft, so the fuel supply capacity of the fuel injection pump is greatly affec...

AI Technical Summary

Problems solved by technology

[0004] First of all, when the engine is working, the cylinder piston reciprocates in a straight line at a certain speed between the top dead center and the bottom dead center. Since the pump piston and the compression piston are coaxially fixed with the cylinder piston, the engine speed is constant, and the cylinder piston If the speed is constant, the movement speed of the pump piston and the compression piston is also certain, which is equal to the movement speed of the cylinder piston, and the movement speed of the pump piston and the compression piston cannot be adjusted adaptively according to the needs; and the movement stroke of the pump piston and the compression piston is also certain , nor can it adaptively adjust the motion stroke according to the needs

[0005] Secondly, during the working process of the engine, two accumulators, the low-pressure accumulator and the high-pressure accumulator, are required, and the functions are complex; The oil enters the pump cavity through the low-pressure oil inlet valve. In the second stroke, when the pump piston closes the low-pressure oil port, the pump piston presses the oil in the pump cavity into the high-pressure accumulator through the high-pressure oil outlet valve, and the working efficiency is low.

More importantly, the self-priming hydraulic free-piston linear engine does not have a safety protection function when the oil supply pressure rises abnormally or the injector flow rate is abnormally large due to some faults, and its oil supply safety is low

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