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:
Apr. 18, 2017
Filed:
Jan. 26, 2015
Zheng Lou, Plymouth, MI (US);
Zheng Lou, Plymouth, MI (US);
NINGBO HOYEA MACHINERY MANUFACTURE CO., LTD., Ningbo, CN;
Abstract
An engine valve actuation system comprises a camshaft, with at least one cam; a control shaft one; a control shaft two; and at least one valve actuation unit, each valve actuation unit further comprising: (i) at least one set of an engine valve and an engine-valve return spring; (ii) an lost-motion module, further comprising a collapsible high-pressure chamber, and operably converting the profile of at least one cam and the collapsing motion from the high-pressure chamber to corresponding movement of the at least one engine valve; and (iii) a hydraulic circuit, further comprising a trigger valve one and a trigger valve two, the two trigger valve being controlled respectively by the control shaft one and the control shaft two.