Starting pressure reducing device for internal combustion engine

• Main Authors: YU SHOUZHEN, GAO YUANXU, ZHANG JIREN
• Format: Patent
• Language: Chinese; English
• Published: 28.10.2022
• Subjects: BLASTING; COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDEDFOR; STARTING OF COMBUSTION ENGINES; WEAPONS

The utility model discloses an internal combustion engine starting pressure reducing device which comprises a mechanism for controlling opening and closing of an exhaust valve, an air inlet end rocker arm and an exhaust end rocker arm are arranged at the left end and the right end of a rocker arm support respectively, and the air inlet end rocker arm and the exhaust end rocker arm can rotate around a rocker arm shaft. The rocker arm seat is provided with a support; the support is provided with a ratchet wheel and a cam group mechanism which are positioned above the exhaust end rocker arm; the ratchet wheel and cam group mechanism comprises a ratchet wheel and a cam which are fixed on the same main shaft, a pawl matched with the ratchet wheel is arranged on the exhaust end rocker arm, a torsional spring which enables the pawl to rotate around the axis of the pawl is arranged on the pawl, and a limiting pin which limits the rotating position of the pawl is arranged on the exhaust end rocker arm; a first tooth g