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:
Aug. 21, 2007
Filed:
Jul. 25, 2006
Teng-hua Shieh, Ann Arbor, MI (US);
Erik J. Oberg, Brighton, MI (US);
Teng-Hua Shieh, Ann Arbor, MI (US);
Erik J. Oberg, Brighton, MI (US);
Toyota Motor Engineering & Manufacturing North America, Inc., Ann Arbor, MI (US);
Abstract
An oil separator that removes oil from ventilation gases flowing between a crankcase and an intake manifold of an internal combustion engine. The oil separator includes a housing having an inlet and an outlet. The housing includes a guide wall having a plurality of holes to allow gases to flow therethrough between the inlet and the outlet. A plate is movably coupled to the housing for movement between a closed position blocking the flow of gases through the holes in the guide wall and an open position spaced apart from the guide wall to allow gases to flow through at least one of the holes in the guide wall. A diaphragm has a movable portion coupled to the plate. The diaphragm defines a substantially closed volume continuous with the intake manifold so that pressure changes in the intake manifold causes corresponding displacement of the movable portion and the plate relative to the housing.