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:
Feb. 26, 1991
Filed:
Nov. 30, 1989
Takao Tate, Susono, JP;
Norihiko Nakamura, Mishima, JP;
Hiroshi Noguchi, Gotemba, JP;
Michio Kawagoe, Susono, JP;
Toyokazu Baika, Susono, JP;
Kichiro Kato, Susono, JP;
Yoshio Kido, Gotemba, JP;
Katsuhiko Hirose, Susono, JP;
Hiroaki Nihei, Susono, JP;
Masahiko Masubuchi, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Abstract
A two stroke engine equipped with a mechanically driven supercharger in the intake passage downstream of throttle valve. A bypass air passage bypassing the supercharger is provided, and a bypass air control valve is arranged in the bypass air passage. When the engine is idling, the bypass air control valve is controlled so that the level of vacuum in the intake passage between the throttle valve and the supercharger is maintained at a constant value.