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. 02, 1993
Filed:
Sep. 27, 1991
Toshio Takeda, Mizuho, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A supercharged engine includes an intake passage, an engine located at one end of the intake passage, an air cleaner located at the other end of the intake passage, a mechanical supercharger located in the intake passage, a main throttle valve located at a downstream side of the intake passage, a sub throttle valve located at an upstream side of the intake passage so as to be larger than the main throttle valve in the opening ratio and linked with the main throttle valve. A relief passage, in parallel to the intake passage, is located between a downstream space between the mechanical supercharger and the main throttle valve and an upstream space between the mechanical supercharger and the sub throttle valve, and a relief valve located in the relief passage and responsive to a pressure-difference across the main throttle valve.