192 clutches and power-stop control – Vortex-flow drive and clutch – Including drive-lockup clutch
Reexamination Certificate
2005-01-11
2005-01-11
Bonck, Rodney H. (Department: 3681)
192 clutches and power-stop control
Vortex-flow drive and clutch
Including drive-lockup clutch
C137S015170, C251S129150
Reexamination Certificate
active
06840361
ABSTRACT:
A torque converter clutch solenoid assembly for controlling the converter clutch apply cycle of a General Motors 4L60-E transmission. The present solenoid assembly includes a solenoid snout having a longitudinal bore terminating in a fluid orifice wherein a one-way check valve has been installed to prevent transmission fluid backflow from the torque converter when not operating. The present check valve effectively replaces and performs the function of the original equipment converter clutch signal orifice check valve located in the converter clutch signal circuit, which actuates the torque converter clutch apply valve. The present solenoid assembly precludes the malfunction of the original equipment torque converter clutch apply valve resulting from physical displacement of the original equipment signal orifice check valve under fluid pressure. The present solenoid snout also resolves a stress crack problem inherent in the original molded plastic design by fabricating the solenoid snout from a durable aluminum material.
REFERENCES:
patent: 4157168 (1979-06-01), Schlagmuller et al.
patent: 5465937 (1995-11-01), Nokubo et al.
patent: 5707039 (1998-01-01), Hamilton et al.
patent: 5931179 (1999-08-01), Megerle et al.
patent: 6019203 (2000-02-01), Patel et al.
patent: 6206343 (2001-03-01), Kato et al.
patent: 6276663 (2001-08-01), Anderson et al.
patent: 6543472 (2003-04-01), Stafford
“4L60 (700-R4) & 4L60-E”, part nos. 77942-01K, Sonnax, p. 1, Jan. 14, 2002.*
“The Converter Clutch Learning Curve”, Bob Warnke, Article No. TC-BW-599, four pages, May 1999.
Bonck Rodney H.
Rey Clifford F.
Sonnax Industries, Inc.
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