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.

Date of Patent:
Oct. 20, 1992

Filed:

May. 09, 1991
Applicant:
Inventors:

Hiroshi Hashimoto, Chigasaki, JP;

Suehiro Urabe, Fujisawa, JP;

Assignee:

Nissan Motor Co., Ltd., Yokohama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
60611 ;
Abstract

An intake system of a V-type internal combustion engine equipped with a turbocharger. The intake system is has an air intake passageway which is branched at a branched section into first and second downstream air intake passageways which are respectively communicable with first and second banks of the engine. First and second throttle valves are disposed respectively in the first and second downstream air intake passageways. Intake air is bypassed from the branched section through the air bypass passage to an upstream side of the turbocharger compressor when the throttle valves are closed in order to prevent an excessive pressure rise in an upstream side of the throttle valves. The air flow through the air bypass passage is controlled by an air bypass valve disposed in the air bypass passage near the branched section.


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