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:
Jan. 08, 1985
Filed:
Mar. 25, 1982
Applicant:
Inventors:
Shigeru Takagi, Anjo, JP;
Nobutoshi Hayashi, Nishio, JP;
Assignee:
Nippon Soken, Inc., Nishio, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
60274 ; 55283 ; 55DI / ; 60286 ; 60311 ; 73 38 ;
Abstract
Particles contained in the exhaust gas discharged from an internal combustion engine are trapped by a particle-trapping-member disposed in an exhaust gas flow path. The flow rate of the exhaust gas is measured directly or indirectly, and the pressure loss for the trapping member is compared with an exhaust gas flow rate to measure the degree of clogging trapped by the trapping member. When the degree of clogging exceeds the predetermined valve, a command signal for closing an intake throttle is generated to reproduce said particle-trapping-member.