Multi-one-way-valve combined energy-saving reciprocating oil supply device capable of achieving self-adaptation in-advance mutual starting

Abstract

The invention discloses a multi-one-way-valve combined energy-saving reciprocating oil supply device capable of achieving self-adaptation in-advance mutual starting. The multi-one-way-valve combined energy-saving reciprocating oil supply device capable of achieving self-adaptation in-advance mutual starting comprises an oil supply device body and an electrical control system. The oil supply devicebody comprises an oil tank, a filter, a reciprocating oil supply pump and an electric control oil atomizer. The reciprocating oil supply pump is composed of a piston rod, a piston and an oil supply cavity. The oil supply cavity is divided into a left oil supply cavity body A and a right oil supply cavity body B through the piston. The left oil supply cavity body A is provided with an oil supply loop ac, the right oil supply cavity body B is provided with an oil supply loop bd, the lower ends of the two oil supply loops are connected with the oil tank, the upper ends of the two oil supply loops are connected with a pressure stabilizer, and the right end of the pressure stabilizer is provided with a flow limiting valve and the electric control oil atomizer, and the flow limiting valve and the electric control oil atomizer are connected with a controller through lines. The multi-one-way-valve combined energy-saving reciprocating oil supply device capable of achieving self-adaptation in-advance mutual starting is simple in structure, capable of saving energy, reliable and capable of achieving the function of self-adaptation in-advance mutual starting, the requirement of multiple workconditions of an engine for the oil supply amount is met, good economic benefits are achieved, and the application range is wide.

Description

technical field [0001] The invention relates to an oil supply device for an engine, in particular to a reciprocating oil supply device with multi-check valves combined with self-adaptive advance mutual activation and energy saving. 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 fu...

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, when the engine speed is constant , the movement speed of the cylinder piston is also constant, the movement speed of the pump piston and the compression piston are both constant (both equal to the movement speed of the cylinder piston), and the movement speed of the pump piston and the compression piston cannot be adaptively adjusted according to actual needs; and the pump piston, compression The movement stroke of the piston is also certain, and the movement stroke cannot be adjusted adaptively 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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