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. 22, 1989
Filed:
Jul. 13, 1988
Hideki Obayashi, Okazaki, JP;
Yoshitaka Nishio, Nagoya, JP;
Tokio Kohama, Nishio, JP;
Hiroyuki Goto, Anjo, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
An intake apparatus for an internal combustion engine that has a first intake passage communicating with a combustion chamber of the internal combustion engine; a second intake passage which communicates with the combustion chamber of the internal combustion engine and whose length is greater than a length of the first intake passage; a valve for selectively changing over the communication/shutting off of the combustion chamber of the internal combustion engine with/from between the first or/and second intake passages; and a drive circuit for driving the valve to effect the changing over operation. A controller controls the drive circuit, and an air cleaner device introduces clean air into the combustion chamber of the internal combustion engine. The first and second intake passages are disposed inside a case of the air cleaner device, and the valve is disposed at a position which is prevented from interfering the outlet side of the second intake passage when the first intake passage is closed by the valve and the second intake passage is opened by the valve.