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.

Date of Patent:
Oct. 10, 2017

Filed:

Apr. 23, 2015
Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventor:

Takahito Suzuki, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 9/00 (2006.01); F16K 31/04 (2006.01); F02D 9/02 (2006.01); F02D 9/12 (2006.01); F02B 31/06 (2006.01); F02D 9/10 (2006.01); F02D 11/10 (2006.01); F16K 31/53 (2006.01); F16K 31/56 (2006.01); F02B 37/18 (2006.01);
U.S. Cl.
CPC ...
F16K 31/047 (2013.01); F02B 31/06 (2013.01); F02D 9/02 (2013.01); F02D 9/1065 (2013.01); F02D 9/12 (2013.01); F02D 11/10 (2013.01); F16K 31/043 (2013.01); F16K 31/53 (2013.01); F16K 31/56 (2013.01); F02B 37/186 (2013.01); F02B 2275/48 (2013.01); F02D 2009/0264 (2013.01); Y02T 10/125 (2013.01); Y02T 10/146 (2013.01);
Abstract

In an electric actuator, one end portion of a return spring is hooked to a first slit formed in a radially outer guide of an output gear, so that the return spring is twisted for a predetermined angle that is slightly smaller than an initial set angle. A tilted slit portion is formed at an opening of a second slit that is formed in a covering wall of a spring installation member to twist the return spring to a predetermined initial set angle. Thereby, simultaneously with assembling of a valve shaft to the output gear, the return spring is twisted for the initial set angle. Thus, an assembling work of the electric actuator can be simplified.


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