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:
Sep. 25, 1984
Filed:
Nov. 30, 1982
Shinzo Kato, Tokyo, JP;
Nagao Nakamura, Tokyo, JP;
Nissan Motor Co. Ltd., Yokohama, JP;
Abstract
In a carburetor system having a main fuel passage for supplying fuel from a float chamber to a main fuel discharge nozzle and an air bleed pipe inserted into the main fuel passage, there is provided an auxiliary air introduction passage for additionally supplying air so as to adjust the air fuel ratio. The auxiliary air passage comprises a primary air passage having an upstream end communicating with the atmosphere and a downstream end opening into the main fuel passage below the fuel level, and a secondary air passage which branches off from the primary air passage and opens into the main fuel passage at a predetermined height above the fuel level. The cross sectional area of the secondary air passage is smaller than that of the primary air passage.