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. 27, 2012
Filed:
Feb. 03, 2010
Shinji Sadakane, Susono, JP;
Shinji Sadakane, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
An engine includes: a valve stop mechanism that varies the number of operating cylinders as a cylinder cut-off mechanism; and a blow-by gas recirculation system that has a blow-by gas passage that returns blow-by gas, flowing from a combustion chamber to a crankcase, to an intake passage and a PCV valve that is equipped with an electric motor and that adjusts the flow rate of gas returned to the blow-by gas passage. A control device variably sets the opening degree, corresponding to a target value of the flow rate of gas, of the PCV valve on the basis of an intake pressure in an intake passage to adjust the opening degree of the PCV valve so that the flow rate of gas becomes the target value.