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:
Mar. 21, 1989
Filed:
Nov. 24, 1987
Applicant:
Inventors:
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
25112905 ; 251368 ; 25112917 ; 25112919 ;
Abstract
An electromagnetic actuator for controlling an amount of an intake air for an internal combustion engine employs an elastic member for biasing a valve body toward a valve seat by a predetermined setting force. The repulse of the valve body that is caused when the valve body hits the valve seat is absorbed by the elastic member. Since the elastic member is located behind the valve body, the elastic member of the present invention has no tendency to adhere the valve body on the valve seat.