Valve mechanism, engine and vehicle

US11448105B2 · kind B2 · utility

Assignee

• GREAT WALL MOTOR COMPANY LIMITED · CN

Inventors

• Tao Liu · Longbeilingcun, CN
• Ji Yin · Baoding, CN
• Luping Liu · Baoding, CN
• Liming Xu · College Park, US
• Jiajia Hu · Baoding, CN
• Fabao Yang · Baoding, CN
• Song Zhang · 安丰镇, CN
• Yanlong Fang · Baoding, CN
• Lei Wang · Singapore, SG

Key dates

• Filing date: Jun 7, 2018
• Grant date: Sep 20, 2022
• Expiry date: May 16, 2039

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01L2820/041
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A valve mechanism includes a valve, a camshaft, an intermediate swing arm located between a cam and the valve, a lift regulating mechanism and a roller assembly. The cam drives the valve to move by means of the intermediate swing arm. The roller assembly is supported by the cam, an eccentric wheel of the lift regulating mechanism and an intermediate swing arm roller. A peripheral surface of the eccentric wheel includes a lift regulating section having a start point and an end point, a maximum lift point of the lift regulating section is located between the start point and the end point, and the lift regulating section is divided into a first section which is convex and a second section having at least a part thereof concave.