Hydraulic full-lift continuous variable valve lift mechanism

• Main Authors: WANG LIFENG, LI KEXU, WANG XIUQIANG, CHI MINGQIANG, LI SHUSU, MA FENGSHAN
• Format: Patent
• Language: Chinese; English
• Published: 14.07.2023
• 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

The utility model discloses a hydraulic full-lift continuous variable valve lift mechanism which comprises a supporting sleeve, a piston and a spiral shaft are arranged in the supporting sleeve, a spiral oil groove is formed in the spiral shaft, a first oil inlet and a first oil drainage port are formed in the supporting sleeve, and a hydraulic cavity is formed between the piston and the spiral shaft. The engine further comprises an energy storage structure, the energy storage structure comprises an energy storage sleeve and an energy storage piston, an oil storage cavity and a first reset spring are arranged in the energy storage sleeve, a second oil inlet and a second oil drainage port are formed in the energy storage sleeve, the second oil inlet is communicated with the first oil drainage port, the oil storage cavity is communicated with the first oil inlet, and the second oil drainage port in the oil storage cavity is communicated with an engine oil pan. Therefore, the oil storage cavity for storing engin