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. 03, 2019

Filed:

Jun. 22, 2017
Applicant:

Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;

Inventors:

Joseph Johnson, Mooresville, NC (US);

Jonathan Richards, Waxhaw, NC (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 1/32 (2006.01); F16H 61/46 (2010.01); F16H 61/468 (2010.01); E02F 9/22 (2006.01); F16H 61/00 (2006.01);
U.S. Cl.
CPC ...
F16H 61/46 (2013.01); F16H 61/468 (2013.01); E02F 9/2235 (2013.01); E02F 9/2296 (2013.01); F04B 1/328 (2013.01); F15B 2211/20553 (2013.01); F16H 61/0025 (2013.01);
Abstract

A pump, including: a cylinder block including two through-bores and two pistons disposed in the through-bores; a drive shaft to rotate the cylinder block; a swash plate to displace the pistons within the through-bores to draw fluid through an inlet port into the through-bores; and expel the fluid from the through-bores into the outlet port; a torque sensor arranged to measure torque on the drive shaft and transmit a torque signal, including the measured torque, to a processor; and an actuator to receive, from the processor, a control signal generated using the torque signal and pivot the swash plate about a first axis, transverse to the axis of rotation, or maintain a circumferential position of the swash plate about the first axis; or pivot the cylinder block about a second axis, transverse to the axis of rotation, or maintain a circumferential position of the cylinder block about the second axis.


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