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:
Nov. 22, 2022
Filed:
Apr. 19, 2021
Applicant:
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Inventors:
Zbigniew Jaskiewicz, Wroclaw, PL;
Sebastian Szymanski, Wroclaw, PL;
Assignee:
HAMILTON SUNDSTRAND CORPORATION, Charlotte, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/00 (2006.01); F16K 11/20 (2006.01); F15B 13/04 (2006.01); F16K 11/07 (2006.01);
U.S. Cl.
CPC ...
F16K 31/008 (2013.01); F15B 13/0402 (2013.01); F16K 11/07 (2013.01); F16K 11/20 (2013.01);
Abstract
A servo valve comprises a first spool extending along a first spool axis, a second spool extending along a second spool axis, a first piezoelectric actuator, and a second piezoelectric actuator. The first piezoelectric actuator is operatively connected to the first spool for translating the first spool in response to a voltage applied thereto. The second piezoelectric actuator is operatively connected to the second spool for translating the second spool in response to a voltage applied thereto.