The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 2024
Filed:
Apr. 10, 2024
Suzhou Sanlin Valteng Automobile Technology Co., Ltd., Suzhou, CN;
Tengfei Ji, Suzhou, CN;
Dongri Jin, Suzhou, CN;
Hongqiang Yu, Suzhou, CN;
Wei Shi, Suzhou, CN;
Jian Song, Suzhou, CN;
Abstract
A variable valve actuation device for an engine includes a rocker arm mechanism, a camshaft, an actuation mechanism and a blocking mechanism. The rocker arm roller can slide on a roller shaft so as to have two operating positions, a first cam and a second cam which are adjacent are provided on the camshaft, the rocker arm mechanism is actuated, based on the different operating positions of the rocker arm roller, by the first cam or the second cam, respectively, to enable the engine to have two valve lifts, a control cam is further provided on one side of the first cam or the second cam, the control cam can actuate the blocking mechanism, and the rocker arm roller is blocked from switching in a switching prohibited portion of the first cam and the second cam, and is allowed to switching in a non-switching prohibited portion.