192 clutches and power-stop control – Clutches – Operators
Patent
1993-10-14
1995-01-03
Pitts, Andrea L.
192 clutches and power-stop control
Clutches
Operators
1921061, 192109B, 192 8929, F16D 2700
Patent
active
053777999
ABSTRACT:
An electromagnetic clutch assembly for an automotive air conditioning compressor is designed so that the return force, as a function of axial displacement, is better matched to the performance requirements of the system. A steel armature, which is pulled toward and into driving contact with a pulley friction disk, moves over a predetermined axial stroke comparable to the nominal axial gap between the armature and disk, plus an allowance for armature wear with time. The armature is attached to the shaft by a stamped stainless steel diaphragm which, in its free state, is concave or dished. When the energized compressor coil pulls the armature toward the disk, the diaphragm is mechanically flattened, as compared to a spring being stretched. The return force of the disk, as opposed to the return force of a stretched spring, is relatively small and flat over the desired axial stroke.
REFERENCES:
patent: 1823334 (1931-09-01), Payne
patent: 2315298 (1943-03-01), Thompson
patent: 3384213 (1968-05-01), Bernard et al.
patent: 4189284 (1980-02-01), Cummins
patent: 4391356 (1983-07-01), Takemura et al.
patent: 4642031 (1987-02-01), Farr
patent: 4860867 (1989-08-01), Nishimura
patent: 5036964 (1991-08-01), Booth et al.
patent: 5119915 (1992-06-01), Nelson
patent: 5150779 (1992-09-01), Booth
patent: 5195625 (1993-03-01), Chang et al.
patent: 5250921 (1993-10-01), Van Laningham et al.
General Motors Corporation
Griffin Patrick M.
Pitts Andrea L.
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