Hydraulic lubrication control system for an automatic transmissi

Details Hydraulic lubrication control system for an automatic transmissi Hydraulic lubrication control system for an automatic transmissi

1996-02-20

1997-12-23

Ta, Khoi Q.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

475120, 747311, F16H 4700

Patent

active

057002266

ABSTRACT:
A sharp-edged orifice, located in an hydraulic circuit between a lubrication system and a source of lubrication, is connected to a flow control valve, which balances the differential pressure across the orifice and throttles the source of fluid pressure to a lubrication feed line. A lube augmentation valve, responsive to pressure, present when operating in forward drive, alternately opens and closes lubrication fluid flow through a second sharp-edged orifice located in a line arranged in parallel with the first orifice and connected downstream from that orifice and upstream from the lubrication circuit.

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