Fully variable electro-hydraulic valve system

• Main Authors: WANG LIFENG, XU ZHONGLIANG, LI KEXU, WANG XIUQIANG, MA FENGSHAN
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2024
• Subjects: BLASTING; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; WEAPONS

A fully-variable electro-hydraulic valve system comprises a sliding sleeve, a main plunger, a piston and a plunger reset spring, the main plunger is in transmission connection with a rotating mechanism and an oil charging and discharging way, and a hydraulic control switch valve and an electromagnetic reversing valve are arranged in the oil charging and discharging way. The solenoid directional valve enables a hydraulic control port of the hydraulic control switch valve to be selectively communicated with an engine oil way or an oil pan, and then the sliding sleeve cavity is controlled to be communicated with or disconnected from the engine oil way. The swing mechanism is driven by a linkage plunger and barrel assembly and reverses and resets through a return spring, the linkage plunger and barrel assembly is selectively communicated with an engine oil way or an oil pan of an engine through the same electromagnetic reversing valve, and then the system is in a rigid or non-rigid connection state. The system ca