192 clutches and power-stop control – Clutches – Operators
Patent
1987-03-16
1990-02-13
Braun, Leslie A.
192 clutches and power-stop control
Clutches
Operators
192 7012, 192110B, 192113B, 474 92, F16D 25061, F16D 1374, F16H 5700
Patent
active
048998613
ABSTRACT:
A variable speed fan drive including a cantilevered support and axially spaced bearings for mounting an input drive member with a cylinder portion and an output fan hub assembly for rotational movement relative to each other and to the support. A modulatable wet type clutch assembly is operably effective to couple the input drive member to the fan hub assembly. The output speed of the fan hub is regulated by the axial compressive force a clutch engaging member applies against interleaved members of the clutch assembly. The clutch engaging member cooperates with the cylinder portion of the input drive member to define an expansible chamber so designed that all clutch clamping forces are confined within the drive member. As such, substantially no axial thrust load is exerted on the axially spaced bearings during clutch application. The drive unit may further include cooperative elements arranged on the drive member and the fan hub assembly for preventing belt cord debris from becoming entangled thereabout.
REFERENCES:
patent: 2927563 (1960-03-01), Geiger
patent: 3581858 (1971-06-01), Haley
patent: 3804219 (1974-04-01), Cummings, III
patent: 4094393 (1978-06-01), Spokas
patent: 4132301 (1979-01-01), Zabonick
patent: 4231457 (1980-11-01), Cornish
patent: 4589535 (1986-05-01), Hall et al.
Borg-Warner blue line drawing D54X255A, "Fan Clutch Assembly", circa 1976.
Borg-Warner blue line drawing 4-292-249-23595, "Fan Drive Assembly," circa 1977.
Borg-Warner blue line drawing 4-154-292-050150, "Fan Clutch Assembly," circa 1978.
Borg-Warner blue line drawing A4-292-249-31941, "Fan Drive Assembly," Sep. 6, 1982.
Borg-Warner blue line drawing A4-154-292-28859, "Fan Clutch Assy. 5.25" (12) Plate, Dec. 6, 1983.
Braun Leslie A.
Lorence Richard M.
Rockford Powertrain, Inc.
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