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:
Aug. 26, 2003
Filed:
Jun. 28, 2001
Hiromi Matsuura, Wako, JP;
Kazuhiro Takashiba, Wako, JP;
Takahiro Shinkai, Wako, JP;
Takuji Yamamoto, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A recirculation exhaust gas extracted from the exhaust passage of an internal combustion engine and flowing through a recirculation passage. A recirculation control valve ( ) controls the flow of the recirculation exhaust gas in the recirculation passage. A recirculation pipe ( ) forming the recirculation passage has a hot or contact section ( ) extending near and along an exhaust manifold ( ). The recirculation pipe ( ) and the exhaust manifold ( ) are covered with a heat-insulation cover ( ). The drop of the temperature of the recirculation exhaust gas flowing through the recirculation passage is suppressed and the deposition of deposits including carbon in the recirculation control valve ( ) is suppressed.