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:
Oct. 01, 2013
Filed:
Nov. 23, 2011
Yeongching Lin, Ann Arbor, MI (US);
Neal Berner, Ypsilanti, MI (US);
Kyle Bernier, Clarkston, MI (US);
Toshiharu Noguchi, Toyota, JP;
Yeongching Lin, Ann Arbor, MI (US);
Neal Berner, Ypsilanti, MI (US);
Kyle Bernier, Clarkston, MI (US);
Toshiharu Noguchi, Toyota, JP;
Toyota Motor Engineering & Manufacturing North America, Inc., Erlanger, KY (US);
Toyota Motor Corporation, Toyota, JP;
Abstract
The variable valve timing mechanism includes a housing, a rotor rotatably supported within the housing, and a lock pin. The housing includes a plurality of fluid chambers one of which includes a lock bore. The rotor includes a central portion and a plurality of vanes extending radially from the central portion. Each of the vanes extends into the fluid chambers of the housing to define an advanced fluid chamber and a retarded fluid chamber. One of the plurality of vanes includes a pin bore. The lock pin includes a shank section and an insertion section. The insertion section includes a nonlinear outer side profile. The lock pin is slidably received within the pin bore between an unlocked position and a locked position in which the insertion section of the lock pin is received within the lock bore of the housing thereby prohibiting relative rotation between the housing and the rotor.