Title:
PIECEWISE HYDRAULIC POWER TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2011/073774
Kind Code:
A3
Abstract:
In one embodiment, a hydraulic circuit has an input shaft, at least one positive displacement hydraulic pump, a plurality of positive displacement hydraulic motors, and at least one fluid line operatively connecting the at least one positive displacement hydraulic pump to the positive displacement hydraulic motors. In operation, the at least one positive displacement hydraulic pump is placed in an operative condition. At least one of the positive displacement hydraulic motors is also placed in an operative condition. A flow rate of fluid in the fluid line is measured, and the remaining positive displacement hydraulic motors are switched between an operative condition and a bypass condition according to the measured flow rate of the fluid.
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Inventors:
STOLTZ THOMAS J (US)
FORTUNE CLARK G (US)
DOROBANTU MIHAI (US)
FORTUNE CLARK G (US)
DOROBANTU MIHAI (US)
Application Number:
PCT/IB2010/003259
Publication Date:
February 23, 2012
Filing Date:
December 15, 2010
Export Citation:
Assignee:
EATON CORP (US)
STOLTZ THOMAS J (US)
FORTUNE CLARK G (US)
DOROBANTU MIHAI (US)
STOLTZ THOMAS J (US)
FORTUNE CLARK G (US)
DOROBANTU MIHAI (US)
International Classes:
F03D9/00; F16H61/4043; F16H61/444
Domestic Patent References:
| WO2008113699A2 | 2008-09-25 | |||
| WO2009102134A2 | 2009-08-20 |
Foreign References:
| GB1084873A | 1967-09-27 | |||
| EP1677000A2 | 2006-07-05 |
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