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:
Apr. 26, 2005
Filed:
Jul. 08, 2003
Applicant:
Jeffrey A. Tyler, Newark, NY (US);
Inventor:
Jeffrey A. Tyler, Newark, NY (US);
Assignee:
G. W. Lisk Company, Inc., Clifton Springs, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D023/00 ; F15B013/16 ; F16K031/12 ;
U.S. Cl.
CPC ...
Abstract
A servomechanism for a valve controlling engine intake flow via a cooler and a bypass uses a proportional solenoid operating a hydraulic valve to power a hydraulic actuator setting the position of the control valve. An engine sensor and electric controller provide input to the proportional solenoid, and feedback from the position of the control valve is applied to the hydraulic valve by a cam and spring applying a force in opposition to the proportional solenoid.