Electromagnetic clutch with improved engagement

Details Electromagnetic clutch with improved engagement Electromagnetic clutch with improved engagement

1994-09-06

1996-03-12

Pitts, Andrea L.

192 clutches and power-stop control

Clutches

Operators

192 84C, F16D 2700

Patent

active

054978696

ABSTRACT:
An air conditioning compressor clutch transfers torque from a spring mounted armature to a pulley not directly, but indirectly, through a free floating, thin, intermediate drive plate keyed to the shaft hub between the two. The armature is fixed to a circular spring member which, in turn, is fixed to pulley. Consequently, the armature and spring turn with the pulley, obtaining concentricity and stability from the pulley bearings. When the coil is energized, the already spinning armature is pulled in, clamping the drive plate between it and the pulley. The drive plate is light enough that it accelerates quickly, and slips very little before complete engagement is made. The lightness of the drive plate also means that it is much less subject to whirl or eccentricity as it spins.

REFERENCES:
patent: 2982385 (1961-05-01), Gamundi
patent: 3384213 (1968-05-01), Bernard et al.
patent: 4445606 (1984-05-01), Van Laningham
patent: 5046594 (1991-09-01), Kakinuma
patent: 5119915 (1992-06-01), Nelson
patent: 5238094 (1993-08-01), Steele
patent: 5250921 (1993-10-01), Van Laningham et al.

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