Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Systems for magnetizing – demagnetizing – or controlling the...
Patent
1985-01-11
1987-01-13
Gellner, Michael L.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
Systems for magnetizing, demagnetizing, or controlling the...
192 356, 361196, 361203, H01F 718
Patent
active
046369120
ABSTRACT:
A circuit for controlling a solenoid clutch wherein a gap is present between an electromagnet and an associated attracted member when in the disengaged state. The circuit controls the level of exciting current supplied to an exciting coil of the solenoid clutch in such a way that the width of the gap is first reduced to zero and then the slip rate of the solenoid clutch is gradually changed from 1 to 0, whereby the solenoid clutch gradually reaches the completely engaged state, making it possible to smoothly engage the solenoid clutch without the occurrence of mechanical shock.
REFERENCES:
patent: 3046470 (1962-07-01), Blocher, Jr.
patent: 4206613 (1980-06-01), Shockley
patent: 4377223 (1983-03-01), Sakakiyama et al.
patent: 4509091 (1985-04-01), Booth
Diesel Kiki Company, Ltd.
Gellner Michael L.
Shoup Guy W.
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