192 clutches and power-stop control – Elements – Engaging surfaces
Patent
1990-03-13
1992-04-07
Lorence, Richard
192 clutches and power-stop control
Elements
Engaging surfaces
192113B, 188218XL, F16D 1364, F16D 1374
Patent
active
051019531
ABSTRACT:
A groove pattern for the paper-based friction facing on a wet clutch to elize the surface temperature of the friction facings and thus increase the thermal capacity of the clutch where there is continuous slippage. The groove pattern includes one or more continuous annular grooves dividing the friction area into two or more annular bands and a plurality of cross grooves in each band which are angled with respect to a radius of the facing. The angled cross grooves increase in number in each band from the inner band to the outer band. The angled cross grooves extend at an acute angle (10-50 degrees) to such radius. Slip of the friction pair of plates cause a viscous pumping action. The cross groove angle in each band of the facing is preferably different so as to keep all the grooves filled with cooling oil. And, the cross-section of the cross grooves vary in their dimensions as between the bands. The disclosed 60.degree. waffle pattern includes annular bands and cross grooves extending from the inner to outer perimeters of the facing at an angle of 60 degrees to the radius of the metal clutch plate. The angled cross grooves of this pattern also provides viscous pumping of oil through the facing.
REFERENCES:
patent: 2020748 (1935-11-01), Waseige
patent: 2144223 (1939-01-01), Klocke
patent: 2516544 (1950-07-01), Breeze
patent: 2690248 (1954-09-01), McDowall
patent: 2728421 (1955-12-01), Butler
patent: 2927673 (1960-03-01), Sand
patent: 3063531 (1962-11-01), Aschauer
patent: 3073424 (1963-01-01), Russell
patent: 3198295 (1965-08-01), Fargman et al.
patent: 3897860 (1975-08-01), Borck et al.
patent: 3972400 (1976-08-01), Howells
patent: 4280609 (1981-07-01), Cruise
patent: 4286694 (1981-09-01), Wiseman, Jr. et al.
patent: 4287978 (1981-09-01), Staub, Jr.
patent: 4358001 (1982-11-01), Iverson
patent: 4385429 (1983-05-01), Crankshaw
patent: 4396100 (1983-08-01), Eltze
patent: 4436193 (1984-03-01), Smirl
patent: 4560048 (1985-12-01), Flotow et al.
patent: 4787482 (1988-11-01), Campbell et al.
patent: 4995500 (1991-02-01), Payvar
Borg-Warner Automotive Transmission & Engine Components Corporat
Lorence Richard
LandOfFree
High capacity viscous pumping groove pattern for a wet clutch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High capacity viscous pumping groove pattern for a wet clutch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High capacity viscous pumping groove pattern for a wet clutch will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1889529