Aircraft generator starter-drive
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United States of America Patent
Stats
-
Feb 16, 1982
Grant Date -
N/A
app pub date -
Feb 15, 1980
filing date -
Feb 15, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention relates to a hydraulic control system for an aircraft starter-drive mechanism that includes a generator that can be driven as a motor drivingly connected through a differential, which is mutually connected to first and second hydraulic units and to an engine drive shaft during a start mode. The hydraulic control system includes a control valve arrangement, cooperatively coupled to the first and second hydraulic units, and operative in the starting mode to control flow between the hydraulic units, to thereby divide the delivery of rotary power from the generator/motor to the engine drive shaft through the differential and the hydraulic units.
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