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.

Date of Patent:
Nov. 01, 1977

Filed:

Apr. 29, 1976
Applicant:
Inventor:

Nobuaki Wakita, Susono, JA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
1231 / ;
Abstract

An exhaust gas recirculator for purification of emission from an internal combustion engine characterized in that an exhaust gas recirculation pipe links the intake manifold and the exhaust pipe connected to the engine cylinder, midway in which is inserted a recirculation control valve acting by the negative pressure of the intake manifold. An orifice with its sectional area variable in the displacement direction of the valve body is provided in the chamber of the recirculation control valve, and a desired flow characteristic of the exhaust gas is obtained by the setting of the orifice configuration.


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