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. 21, 1984
Filed:
Apr. 01, 1982
Norikatsu Ishikawa, Mishima, JP;
Haruyuki Obata, Susono, JP;
Takao Tate, Susono, JP;
Toshio Tanahashi, Susono, JP;
Hiromi Otsuki, Anjo, JP;
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
An internal combustion engine comprising a carburetor which has a main air bleed passage and a slow air bleed passage. An air-fuel ratio of the mixture fed into the cylinder of an engine is so controlled that it becomes equal to the stoichiometric air-fuel ratio by a single electromagnetic control valve arranged in the main air bleed passage and the slow air bleed passage. The control valve comprises a first reed valve arranged in the slow air bleed passage, a second reed valve arranged in the main air bleed passage, and an electromagnetic device simultaneously actuating the first reed valve and the second reed valve while maintaining the opening area of the first reed valve at an area which is larger than the opening area of the second reed valve.