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:
Aug. 26, 1986
Filed:
Jan. 09, 1984
Applicant:
Inventors:
Motohiro Shinzawa, Yokosuka, JP;
Yoji Hasegawa, Yokohama, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ; B01D / ;
U.S. Cl.
CPC ...
36443103 ; 55283 ; 60286 ; 60311 ;
Abstract
An apparatus controls the operation of a regenerative device for generating a quantity of heat to burn the exhaust particles collected in a trap located in the exhaust conduit of an internal combustion engine. The apparatus is responsive to the pressures on the inlet and outlet sides of the trap for calculating a pressure differential across the trap and a threshold value for comparison therewith as a function of the pressure on the inlet side of the trap. The apparatus operates the regenerative device to regenerate the trap when the pressure differential across the trap reaches the calculated threshold value.