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:
Jul. 30, 2019
Filed:
Mar. 21, 2017
Applicant:
Honda Motor Co., Ltd., Tokyo, JP;
Inventor:
Takafumi Murakami, Tokyo, JP;
Assignee:
HONDA MOTOR CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 3/20 (2006.01); F16K 1/36 (2006.01); F01L 3/02 (2006.01); B21K 1/22 (2006.01); B21C 23/18 (2006.01);
U.S. Cl.
CPC ...
F01L 3/20 (2013.01); B21C 23/183 (2013.01); B21K 1/22 (2013.01); F01L 3/02 (2013.01); F16K 1/36 (2013.01); F01L 2101/00 (2013.01); F01L 2103/00 (2013.01); F01L 2103/01 (2013.01);
Abstract
An engine valve and a method of producing the engine valve are provided. The engine valve includes a shaft part and an umbrella part formed at one end of the shaft part. The engine valve opens and closes an intake port or an exhaust port of a combustion chamber of an internal combustion engine. Further, at least a portion of the engine valve that extends from the umbrella part to a position on the shaft part in a longitudinal direction thereof includes a valve body made of steel or nickel alloy, and a core member made of copper or copper alloy and provided inside the valve body.