Power plants – Pressure fluid source and motor – Having condition responsive control in a system of distinct...
Patent
1985-04-11
1987-01-13
Garrett, Robert E.
Power plants
Pressure fluid source and motor
Having condition responsive control in a system of distinct...
60421, 60422, 60426, 60486, 60911, B62D 507
Patent
active
046354395
ABSTRACT:
A control having a primary work system, a secondary work system, a first fluid flow generating system, and a second fluid flow generating system is provided. A control signal delivering device is provided to deliver a control signal having a magnitude responsive to a relative location of a control valve between a first and second position of a control valve. A control signal receiving device receives the control signal and separately controls the flow rate deliverable from the first and second flow generating system in response to the magnitude of the control signal received. The control signal receiving device has a set point value which is representative of a preselected magnitude of the received control signal. The second fluid flow generating system is controlled to deliver fluid only in response to the magnitude of the received control signal having a value greater than preselected deliverable flow rate. The first flow generating system is controlled to deliver fluid at a rate responsive to the magnitude of the received control signal and, during periods at which the received control signal has a value greater than the set point, reduces the fluid flow deliverability rate of the first flow generating system, an amount substantially equal to the flow rate being delivered by the second flow generating system.
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patent: 4044786 (1977-08-01), Yip
patent: 4070857 (1978-01-01), Wible
patent: 4102132 (1978-07-01), Palmer
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Caterpillar Industrial Inc.
Garrett Robert E.
Hickman Alan J.
Husar John M.
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