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:
Sep. 01, 1981
Filed:
Dec. 27, 1979
Tatehito Ueda, Susono, JP;
Toyota Jidosha Kogyo Kabushiki Kaisha, Aichi, JP;
Abstract
An exhaust gas recirculation control system for particular application to a diesel engine, which includes a combination of a fuel injection pump having a movable fuel amount determining element whose position regulates the amount of fuel injected, a conversion device having a fixed orifice and a variable orifice provided downstream of the fixed orifice and whose effective opening area is varied according to the movement of the fuel amount determining element, whereby, when a constant fluid pressure is supplied to the fixed orifice, a fluid pressure which changes according to the amount of fuel injected is taken off at a middle portion between the fixed and variable orifices, and a fluid pressure actuator which operates an exhaust gas recirculation control valve by being energized by the fluid pressure taken off from the abovementioned middle portion.