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1. US20110138799 - Control system for swashplate pump

Office United States of America
Application Number 12636199
Application Date 11.12.2009
Publication Number 20110138799
Publication Date 16.06.2011
Grant Number 08661804
Grant Date 04.03.2014
Publication Kind B2
IPC
F16D 31/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
31Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution
02using pumps with pistons or plungers working in cylinders
Applicants Wagner Christoph
Caterpillar Inc.
Inventors Wagner Christoph
Agents Finnegan, Henderson, Farabow, Garrett & Dunner LLP
Title
(EN) Control system for swashplate pump
Abstract
(EN)

A control system for a swashplate pump is disclosed. The control system may have a tiltable swashplate, at least one actuator movable to tilt the swashplate, a supply of pressurized fluid, and a drain. The control system may also have a first circuit connectable to the supply of pressurized fluid and to the drain and configured to control operation of the at least one actuator, and a second circuit connectable to the supply of pressurized fluid and to the drain and configured to control operation of the at least one actuator. The control system may further have a failsafe valve configured to connect the first circuit to at least one of the supply and the drain only during a normal operating condition, and to connect the second circuit to the supply and to the drain only during a failsafe condition.