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. 26, 2011
Filed:
Feb. 02, 2007
Florin Bugescu, Canton, MI (US);
Anna Strehlau, Windsor, CA (US);
Florin Bugescu, Canton, MI (US);
Anna Strehlau, Windsor, CA (US);
Schaeffler Technologies GmbH & Co. KG, Herzogenaurach, DE;
Abstract
The invention proposes a push-rod valve train having an adjustable valve tappet (). This has an outer part (), an inner part () and a lost-motion spring (), which forces the inner part () towards a relative position, at least one retainer ring (), which is fixed in an annular groove () of the outer part () and which interacts with a stop face () of the inner part (), being provided for fixing the relative position, said retainer ring having lugs () extending radially inwards and separated by a fitting gap (). In this the free movement of the valve push rod () relative to the lugs () is assured by the provision of a torsional locking means (), which serves to fix the radial position of the fitting gap () inside the annular groove ().