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.:

US 9228547 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 05, 2016

Filed:

Jun. 27, 2013
Applicant:

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

Inventor:

Hideki Hayashi, Takahama, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 31/06 (2006.01); F02M 35/10 (2006.01); F02D 9/10 (2006.01);
U.S. Cl.
CPC ...
F02M 35/10 (2013.01); F02B 31/06 (2013.01); F02D 9/103 (2013.01); Y02T 10/146 (2013.01);
Abstract

An apparatus has a turbulence generator valve which is arranged in an intake air passage. The valve generates turbulence in a cylinder of an engine. The valve receives an intake flow torque TA by flow of intake air. The valve is driven by an electric motor in an electric actuator. Reverse transmission torque TB is necessary to rotate the electric motor in the electric actuator when the electric motor is not activated. A cancel spring is provided to apply a cancel torque TC to the valve. The torques are set to satisfy |TA+TC|<|TB|. As a result, it is possible to keep a valve opening degree of the valve while the electric actuator is not activated.


Find Patent Forward Citations

Hayashi, Hideki. (2016). Apparatus for generating engine intake air turbulence (U.S. Patent No. 9228547). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9228547

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