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:
Mar. 17, 2009
Filed:
Oct. 09, 2007
Haruki Morita, Yokohama, JP;
Kazuyuki Kogiso, Benito Juarez, MX;
Yoshinori Yakabe, Yokohama, JP;
Kazuhiro Fujiwara, Atsugi, JP;
Shigehiro Yamaki, Isehara, JP;
Haruki Morita, Yokohama, JP;
Kazuyuki Kogiso, Benito Juarez, MX;
Yoshinori Yakabe, Yokohama, JP;
Kazuhiro Fujiwara, Atsugi, JP;
Shigehiro Yamaki, Isehara, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A variable air intake control system includes first and second variable intake control valves, a vacuum tank, actuators, a one-way valve and a controller. The controller selectively is configured to control the first and second actuators to offset operating timings of the first and second variable intake control valves so as to suppress the noise in the one-way valve, when the first and second variable intake control valves are switched from a first operating state in which the first and second variable intake control valves are both in one of the open and closed states to a second operating state in which the first and second variable intake control valves are both in one of the open and closed states that is opposite to the first operating state.