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. 25, 1983
Filed:
Sep. 24, 1980
Applicant:
Inventors:
Kosuke Ito, Yokohama, JP;
Hiroshi Iida, Tokyo, JP;
Masanori Harada, Yokohama, JP;
Masato Hatakenaka, Yokohama, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123568 ; 123571 ;
Abstract
An exhaust gas purification control apparatus for an internal combustion engine wherein vacuum signals applied to air fuel mixture control, exhaust gas recirculation control, and ignition timing control are modified by a vacuum signal modifier. The vacuum signal modifier is operative in response to a pressure signal applied thereto. This pressure signal is produced by a pressure signal control device by diluting a venturi vacuum with air.