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:
Nov. 12, 2002
Filed:
Nov. 16, 2001
Atsushi Umemoto, Wako, JP;
Kenji Abe, Wako, JP;
Yoshinori Onohara, Wako, JP;
Kouichi Ikoma, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
The invention provides an electromagnetic driving valve of an internal combustion engine provided with a significantly compact shock absorbing means which can reduce an impact sound and a vibration in a contact portion between a first transmission shaft and a second transmission shaft and reduce an impact sound and a vibration generated at a time when a valve portion sits on an intake and exhaust port at a time of closing a valve. A shock absorbing means ( ) is provided between a first transmission shaft ( ) extended upward from a valve portion ( ) and a second transmission shaft ( ) extended on the same axis thereof and supporting a movable plate ( ) between a pair of electromagnets ( ). The shock absorbing means ( ) is provided with a contact connecting means ( ) connected to an upper end of the first transmission shaft ( ) and freely extending and compressing while maintaining a contact with a lower end of the second transmission shaft ( ), and an oil receiving portion ( ) slidably inserting the contact connecting means ( ) thereto and gradually discharging a fluid charged in an inner portion thereof together with an upward movement of the contact connecting means ( ) at a time of a valve closing operation of the valve portion ( ), thereby reducing a valve closing speed of the valve portion ( ) via the first transmission shaft ( ).