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:
Jul. 01, 2025

Filed:

Jun. 12, 2023
Applicant:

Hamilton Sundstrand Corporation, Charlotte, NC (US);

Inventors:

Ryan Prescott Susca, Windsor, CT (US);

Ryan Shook, Loves Park, IL (US);

Assignee:

Hamilton Sundstrand Corporation, Charlotte, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/22 (2006.01); F02C 7/236 (2006.01); F04B 49/12 (2006.01);
U.S. Cl.
CPC ...
F02C 7/22 (2013.01); F02C 7/236 (2013.01); F04B 49/12 (2013.01);
Abstract

The system includes a main supply line. A variable displacement pump (VDP) is in fluid communication with an inlet line and with an outlet line. An actuator is operatively connected for direct control of the variable displacement mechanism. A pressure sensor is operatively connected to the outlet line to generate feedback indicative of pressure in the outlet line. A controller is operatively connected to receive the feedback from the pressure sensor, and operatively connected to the actuator to control the variable displacement mechanism based on the feedback. An actuation system is in fluid communication to be supplied with fluid from the outlet line for use in hydraulic actuation. The actuation system includes an actuation return line connecting the hydraulic actuation system in fluid communication to return fluid to the main supply line.


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