Cyclic adjusted energy-saving oil control valve

Abstract

The invention provides a cyclic adjusted energy-saving oil control valve. The cyclic adjusted energy-saving oil control valve comprises a valve shell (3) and a piston (4). The valve shell (3) is provided with a first working port (32), an oil inlet (33) and a second working port (34). The piston (4) is mounted in a hollow inner cavity of the valve shell (3). A relative sliding fit structure is formed between the piston (4) and the valve shell (3). A one-way valve is arranged in a hollow inner cavity of the piston (4). Through sliding of the piston (4) sliding relative to the valve shell (3) and turn-on of the one-way valve, both the first working port (32) and the oil inlet (33) can communicate with the second working port (34), or both the second working port (34) and the oil inlet (33) communicate with the first working port (32). The cyclic adjusted energy-saving oil control valve can effectively reduce consumption of a fluid medium and can increase the relative adjustment speed ofa variable valve timing adjustment system when applied to the variable valve timing adjustment system.

Description

technical field [0001] The invention relates to the field of structural design of an oil control valve, in particular to an energy-saving oil control valve for cycle regulation. Background technique [0002] Variable valve timing adjustment technology refers to changing the overlapping angle of the intake and exhaust valves by controlling the opening angle of the intake and exhaust valves of the internal combustion engine under specific engine conditions, thereby increasing the intake charge and Efficiency, to better organize the intake vortex, adjust the cylinder explosion pressure and residual exhaust gas volume, and finally obtain comprehensive performance improvements such as engine power, torque, emissions, and fuel economy. [0003] At present, the common variable valve timing adjustment system mainly uses the oil pump to output the oil pressure to the oil control valve as the driving force. The oil control valve has a complicated structure and is highly dependent on t...

AI Technical Summary

Problems solved by technology

[0003] At present, the common variable valve timing adjustment system mainly uses the oil pump to output the oil pressure to the oil control valve as the driving force. The oil control valve has a complicated structure and is highly dependent on the fluid medium pressure (oil pressure). The large amount of oil requires higher oil pressure and pump oil volume requirements for the engine oil pump system, resulting in a more complex structure of the engine system. Moreover, it must rely on a high drive oil pressure ratio to compensate for oil leakage; especially in low temperature conditions Under low conditions, the response speed of the variable valve timing adjustment system is low due to the high viscosity of the oil

Images