Polyphase motor with adjustable clutch for smooth start

Details Polyphase motor with adjustable clutch for smooth start Polyphase motor with adjustable clutch for smooth start

1990-07-25

1992-01-14

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

192 56R, 464 46, F16H 5700, H02K 7108

Patent

active

050813854

ABSTRACT:
A polyphase induction motor prevents the transmission of excessive torque to the load upon starting of the motor by connecting a pair of friction clutches between the rotor of the motor and the power shaft. When a torque higher than the pressure on the clutches occurs, the clutches will slip, permitting the output shaft to rotate at a lower speed than the rotor. An adjustment varies the pressure of a spring pressing on the clutches to adjust the torque at which slippage of the clutch occurs.

REFERENCES:
patent: 3092983 (1963-06-01), Huber
patent: 3478238 (1969-11-01), Herman et al.
patent: 3798990 (1974-03-01), Knappe
patent: 4292557 (1981-09-01), Kishi
patent: 4588913 (1986-05-01), Adami
patent: 4921083 (1990-04-01), Etscheidt et al.

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