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. 21, 1982
Filed:
Mar. 05, 1981
Syozo Yanagisawa, Tokaimura, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An exhaust gas recirculation valve including a passage structure defining therein an exhaust gas recirculation passage having provided therein an orifice. A movable valve member cooperates with the orifice for metering the exhaust gas flow therethrough. A tubular wall member projects into the exhaust gas recirculation passage and defines an axial bore having one end thereof facing to the valve member. A valve stem has one end thereof connected to the valve member and the other end disposed outside of the passage structure and connected to an actuator. The valve stem extends through the axial bore in the tubular wall member and a guide opening in the passage structure. The tubular member projects in the exhaust gas recirculation passage such a distance that when the valve member is into a position in which the volume of the exhaust gas flowing through the valve is maximized, the valve member is disposed close to but spaced from the one end of the axial bore in the tubular wall member, and the one end of the axial bore in the tubular wall member has a diameter at most equal to the maximum diameter of the valve member.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile