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. 11, 1997
Filed:
Jun. 23, 1995
Toshimichi Minowa, Tokai-mura, JP;
Minoru Ohsuga, Hitachinaka, JP;
Mineo Kashiwaya, Hitachinaka, JP;
Yasushi Sasaki, Urizura-machi, JP;
Hitachi, Ltd., , JP;
Abstract
The present invention has a structure of a lean-burn combustion engine 25 for burning a fuel by increasing the proportion of air to the fuel, a swirl control valve 8 for regulating a swirl intensity of combustion air inside an intake port in a lean-burn operation range of the lean-burn combustion engine 25, an accelerator pedal 1 for setting an acceleration request of a driver, and mechanical connection for mechanically connecting the accelerator pedal 1 to the swirl control valve 8, having a mechanism capable of setting the swirl control valve opening so that a lean limit can be expanded. Also, the invention has a structure of an intake system including the swirl control valve for regulating a swirl intensity of combustion air inside an intake port and a a driving mechanism for the valve can be produced easily and at a low cost, and a lean limit can be expanded.