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.

Date of Patent:
Jan. 24, 1984

Filed:

Apr. 12, 1982
Applicant:
Inventors:

Junji Otani, Oomiya, JP;

Akira Okubo, Tokyo, JP;

Takashi Kushibiki, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
1231 / ; 123-3 ; 123549 ; 123557 ; 261142 ;
Abstract

A structure for facilitating the starting and warming of an internal combustion engine provided with a carburetor in its intake passage. A side passage which is separate from the intake passage by-passes a throttle valve in the carburetor is connected to the intake passage. A fuel nozzle capable of injecting fuel into the side passage and a control valve adapted to open and close the side passage are also provided. A heating chamber is formed in the side passage on the downstream side of the control valve. A heating element adapted to heat a gaseous mixture generated in the side passage to turn the gaseous mixture into a combustible gaseous mixture is accommodated in the heating chamber. The structure may further include a heat insulating member inserted between the heating chamber and carburetor and/or intake passage. Further, the structure may include a secondary air passage, a fuel injection unit for injecting fuel into the heating chamber and a catalytic converter in the heating chamber.


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