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:
Apr. 25, 2023

Filed:

Nov. 05, 2019
Applicant:

Norgren GT Development Llc, Auburn, WA (US);

Inventors:

Charles E. Stephens, Auburn, WA (US);

David De Leon, Auburn, WA (US);

Dan Green, Auburn, WA (US);

Assignee:

Norgren GT Development LLC, Auburn, WA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01P 7/14 (2006.01); F01N 3/02 (2006.01); F01P 3/12 (2006.01); F16K 31/122 (2006.01); F01N 3/08 (2006.01);
U.S. Cl.
CPC ...
F01P 7/14 (2013.01); F01N 3/0205 (2013.01); F01N 3/0828 (2013.01); F01P 3/12 (2013.01); F16K 31/1221 (2013.01); F01P 2007/146 (2013.01);
Abstract

A fluid actuated normally closed coolant control valve. The valve comprises a valve housing, an inlet port, the inlet port configured for fluid communication with either a coolant source or a heat exchanger of a DEF tank; an outlet port configured for fluid communication with the other of the heat exchanger of a DEF tank or the coolant source; a valve chamber, a valve and an actuator configured to actuate the valve. The actuator is a fluid actuated piston. The valve is biased to a closed condition in which the flow of coolant from the inlet port to the outlet port is prevented by the valve. The valve is actuatable to an open condition in which the flow of coolant from the inlet port to the outlet port is permitted, and the valve is withdrawn from the valve chamber, wherein the flow factor for the valve is greater than 1.5.


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