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Pump system having open-loop torque control


Title: Pump system having open-loop torque control.
Abstract: A pump system is disclosed. The pump system may have a pump with a displacement that is variable, and an actuator movable to adjust the displacement of the pump. The pump system may also have an electro-hydraulic valve fluidly connected to the actuator and configured to control movement of the actuator, and a variable resistor mechanically connected to at least one of the actuator and the pump. The variable resistor may be adjustable by movement of the at least one of the actuator and the pump to vary a current passing through the electro-hydraulic valve. ...
USPTO Applicaton #: #20120301325
Inventors: Bryan E. Nelson, Lawrence J. Tognetti, Jeffrey L. Kuehn



The Patent Description & Claims data below is from USPTO Patent Application 20120301325, Pump system having open-loop torque control.




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stats Patent Info
Application #
US 20120301325 A1
Publish Date
11/29/2012
Document #
13114670
File Date
05/24/2011
USPTO Class
417 53
Other USPTO Classes
417213
International Class
/
Drawings
4


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