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. 03, 1987
Filed:
Nov. 22, 1985
Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A device for varying the effective intake passage length of an internal combustion engine having a compact and simplified structure. A cylindrical rotor is rotatably mounted coaxially within a hollow cylindrical casing. A chamber formed within the rotor is communicated with the air filter of the engine, while a second chamber, defined between the inside of the casing and the outside of the rotor, is communicated with the intake chamber of the cylinders of the engine. A partition extends between the inner wall of the casing and the outer wall of the rotor. By turning the rotor, the effective air intake passage length is varied, thereby allowing the combustion efficiency to be maximized.