Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1989-03-01
1990-04-24
Diehl, Dwight G.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74867, 3644241, B60K 4106
Patent
active
049190121
ABSTRACT:
A throttle valve system for an automatic transmission control circuit comprising a solenoid pilot valve and a pressure regulating throttle pressure spool valve for developing a throttle valve pressure for use in initiating control functions in a multiple ratio transmission wherein the output signal of the throttle valve can be used as an indicator of the driving torque wherein the force requirements of the variable force solenoid are reduced and wherein the sensitivity of the pressure regulating throttle valve to the output signal of the pilot valve and to changes in engine torque is improved relative to prior art throttle valve systems, the pilot valve being effective to control a larger flow insensitive regulating valve and the stroke of the solenoid actuator for the pilot valve being minimal.
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Diehl Dwight G.
Ford Motor Company
Harrington Donald J.
McKenzie Frank G.
Zerschling Keith L.
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