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. 29, 1985
Filed:
Feb. 18, 1982
Applicant:
Inventors:
Tooru Maeda, Hiroshima, JP;
Tsunao Yajima, Hiroshima, JP;
Assignee:
Mazda Motor Corporation, Hiroshima, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123569 ; 123571 ;
Abstract
An exhaust gas recirculation system for diesel engines including an exhaust gas recirculation passage and a recirculation control valve for controlling the gas flow in the recirculation passage. A control circuit is provided for controlling the operation of the control valve. The control circuit receives an engine speed signal and a position signal which represents the angular position of the control lever in the fuel injection pump and closes the control valve to cut-off the exhaust gas recirculation when the engine speed signal becomes smaller than the position signal.