Patent ID: 6082416
Filing Date: 2000-07-04
Classification: F01M,F16H

Abstract:
A fluid exchange system for use in exchanging a used fluid with a fresh fluid in a hydraulic system having a cooling circuit operatively connected to conduct a circulated fluid therein the hydraulic system, said used fluid initially being contained within said fluid cooling circuit, said fluid exchange system comprising:a fluid receptacle having a separation member therein; said separation member being movable to define a fresh fluid portion of the fluid receptacle and a used fluid portion of the fluid receptacle;a first conduit adapted to fluidly couple the used fluid portion of the receptacle to the cooling circuit to conduct a pressurized used fluid from the fluid cooling circuit, said pressurized used fluid causing a movement of the separation member within the fluid receiver;a second conduit adapted to fluidly couple the fresh fluid portion of the receptacle to the cooling circuit to conduct fresh fluid to the fluid cooling circuit; anda bypass control mechanism operatively connected to the fluid receiver, said bypass control mechanism being activated by a movement of the separation member within the fluid receiver, said bypass control mechanism adapted to remove the fluid receptacle from the cooling circuit.