Transmission assembly with positive-displacement pump with suction throttle driven by a hydrodynamic converter
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United States of America Patent
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Jul 8, 1997
Grant Date -
N/A
app pub date -
May 27, 1994
filing date -
Nov 30, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A gear for motor vehicles provided with a positive-displacement pump for supplying a lubricating device and the control and activating devices of the gear. The positive-displacement pump is driven by the rotation of a drive motor and is provided with a suction throttle which adjusts the flow of lubricating oil such that a relatively constant flow is maintained over a varying range of rotational speeds of the drive motor. The invention provides the advantages that gear efficiency can be improved since high rotational speeds of the drive motor do not cause a excessive flow of lubricating oil.
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