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:
Aug. 26, 2025
Filed:
Feb. 28, 2024
Hamilton Sundstrand Corporation, Charlotte, NC (US);
August M. Coretto, Windsor, CT (US);
Ryan Prescott Susca, Windsor, CT (US);
HAMILTON SUNDSTRAND CORPORATION, Charlotte, NC (US);
Abstract
A dual-function high-pressure relief valve pressure regulating valve includes valve sleeve, a spool that slides laterally in a first direction and a second direction, and a piston disposed against the valve sleeve. The valve sleeve includes a PRV inlet window, a PRV outlet window, and a pressure relief outlet window. The spool includes a PRV inlet landing, and a combined PRV/HPRV landing. The piston is configured to slide laterally in the first direction and the second direction based on a pressing force applied by the spool. The dual-function HPRV-PRV operates in a first mode to adjust the spool and maintain opening of the PRV inlet window and the PRV outlet window while closing the pressure relief outlet window, and operates in a second mode to adjust both the spool and the piston to open each of the PRV inlet window, the PRV outlet window, and the pressure relief outlet window.