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:
Dec. 02, 2025

Filed:

Sep. 25, 2023
Applicant:

Triumph Engine Control Systems, Llc, West Hartford, CT (US);

Inventors:

Thomas L. Burnham, East Hartford, CT (US);

William H. Dalton, Hebron, CT (US);

Assignee:

Triumph Engine Control Systems, LLC, West Hartford, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C 2/08 (2006.01); F04C 2/18 (2006.01);
U.S. Cl.
CPC ...
F04C 2/084 (2013.01); F04C 2/18 (2013.01); F04C 2/088 (2013.01); F04C 2240/20 (2013.01); F04C 2250/20 (2013.01);
Abstract

A gear having volume expansion for cavitation reduction in a gear pump mesh. The gear has a gear tooth profile; a body; a plurality of involute gear teeth extending radially outward from the body and including first and second neighboring gear teeth each having a respective tip and a root, the first and second neighboring gear teeth defining a space between them; and a root pocket formed directly into the roots of the gear teeth and in the space between the gear teeth, providing an increased gear root volume and adding trapped fluid compliance while leaving unaltered the gear tooth profile. Also disclosed is a gear pump including the gear.


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