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:
Jun. 09, 1992
Filed:
Jan. 30, 1991
Mazda Motor Corporation, Hiroshima, JP;
Abstract
An intake system comprises an intake passage provided, in order from an upstream side of the intake passage, with a throttle valve, a mechanical compressor supercharger and an inter-cooler for delivering supercharged air discharged by the supercharger into cylinders of an internal combustion engine. The intake passage has a supercharger bypass passage for allowing an intake air flow to bypass the supercharger, and an inter-cooler bypass passage for allowing a supercharged air flow to bypass the inter-cooler. Pneumatic valves, disposed, respectively, in the supercharger and inter-cooler bypasses passages, are controlled to open both the bypass passages when the internal combustion engine operates in a range of lower loads, to open at least the supercharger bypass passage when the internal combustion engine operates in a range of medium loads, and to close both the bypass passages when the internal combustion engine operates in a range of higher loads.