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:
Jun. 10, 2025
Filed:
Feb. 16, 2023
Applicant:
Dana Motion Systems Italia S.r.l., Reggio Emilia, IT;
Inventors:
Federica Franzoni, Reggio Emilia, IT;
Fabio Natali, Modena, IT;
Alessandro Sassi, Reggio Emilia, IT;
Assignee:
DANA MOTION SYSTEMS ITALIA S.R.L., Reggio Emilia, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B 3/02 (2006.01); F01B 3/00 (2006.01); F01B 3/10 (2006.01);
U.S. Cl.
CPC ...
F01B 3/02 (2013.01); F01B 3/0035 (2013.01); F01B 3/0085 (2013.01); F01B 3/103 (2013.01);
Abstract
Systems and methods for a variable displacement hydraulic motor. The hydraulic motor, in one example, includes a swash plate with a tilt angle, multiple piston assemblies configured to rotate about a drive shaft. In the motor, each of the piston assemblies includes an inner piston slideably coupled to an outer piston that mates with a cylinder in a cylinder block and a retainer device configured to inhibit axial movement of the outer piston in a first position and permit axial movement of the outer piston in a second position.