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:
Jun. 29, 1999

Filed:

Feb. 09, 1995
Applicant:
Inventors:

Yasuhiko Hosoya, Hyogo, JP;

Toshiki Kuroda, Hyogo, JP;

Tatsuhiko Takahashi, Hyogo, JP;

Mutsuo Sekiya, Hyogo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
60289 ; 60300 ; 60284 ;
Abstract

The air introducing means comprising air pump for introducing air into exhaust pipe and heating device for heating the introduced air are provided. Both an air pump for introducing air into exhaust pipe and a heating device for heating the introduced air are provided. Heating device is connected to the control unit which causes it to stop heating when the temperature of the water for cooling engine exceeds a preset temperature. Idle rotation regulator for keeping the rotational speed of the engine at a level higher than the idling speed is also provided. Further provided is a control unit that actuates the idle rotation regulator when the engine is brought to idling while the heating device performs heating. If the rotational speed of the engine is increased while it is running at idle, more power is generated by dynamo to make up for the power consumption by the heating device.


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