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US 2003/0188946 A1Published application
Torque converter clutch regulator valve assembly
AssigneeSonnax Industries, Inc.
InventorsScott C. Jackson, Robert C. Warnke
Life of this patent
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AssigneeSonnax Industries, Inc.
InventorsScott C. Jackson, Robert C. Warnke
Estimating the term…
A replacement torque converter clutch regulator valve assembly for an automatic transmission that controls clutch apply circuit pressure to the lockup piston within the torque converter clutch is disclosed. The present torque converter clutch regulator valve assembly includes an internal pressure relief valve that regulates clutch apply circuit pressure in the range of 90 to 100 pounds per square inch in comparison to the original equipment manufacture line pressure of 130 to 140 pounds per square inch thereby preventing deflection and malfunction of the lockup piston in operation. The present torque converter clutch regulator valve assembly also includes a modified switch valve having a fluid restricting baffle formed thereon that eliminates the initial spike in clutch apply circuit pressure at the start of each apply cycle to the torque converter clutch, which reduces shudder and provides improved control of the clutch apply and release circuits.
1) A torque converter clutch regulator valve assembly for use in regulating fluid pressure within the torque converter clutch apply circuit for regulating the lockup piston within the torque converter of an automatic transmission, said torque converter regulator valve assembly comprising:
7) An improved torque converter clutch regulator valve assembly for use in regulating fluid pressure within the torque converter clutch apply circuit for controlling the lockup piston in the torque converter of an automatic transmission, said torque converter clutch regulator valve assembly including a switch valve disposed within the valve body of the transmission and a bias valve disposed within the valve body in end-to-end relation to said switch valve, wherein the improvement comprises:
13) A method of reducing hydraulic pressure within the torque converter clutch apply circuit in an automatic transmission, wherein fluid pressure within the apply circuit is regulated by a torque converter clutch regulator valve assembly disposed in fluid communication with the torque converter feed circuit and the torque converter clutch apply circuit of the transmission, said method comprising the steps of:
Dependencies are inferred from the claim text.