Machine element or mechanism – Mechanical movements – Rotary to intermittent unidirectional motion
Patent
1988-04-29
1990-02-27
Braun, Leslie A.
Machine element or mechanism
Mechanical movements
Rotary to intermittent unidirectional motion
60 39091, 318 12, F02G 300
Patent
active
049035371
ABSTRACT:
Apparatus and method for periodic rotation of the rotor assembly of a turbogenerator during the time that it is not rotated in its normal manner for generating power, in which a continuously operating motor is periodically connected through an electrically controllable, torque-speed, clutch mechanism and a gear train to a gear mounted on the rotor shaft so as to rotate the shaft by 180.degree. at a slow speed. The position of the rotor is measured by electrically counting the teeth of the gear on the rotor shaft, and the count of teeth is compared with a preset number in a counter which after the count set in the counter is reached, disconnects the motor from the rotor gear and sets a brake. A settable timer periodically releases the brake and connects the motor to the rotor gear. The apparatus can include a recorder for recording rotation of the shaft and an alarm for indicating failure of rotation of the rotor when the timer provides a start signal.
REFERENCES:
patent: 2129529 (1938-09-01), Howard
patent: 2252456 (1941-08-01), Buehman
patent: 2617253 (1950-09-01), Fusner et al.
patent: 3146910 (1964-09-01), Varner
patent: 3321982 (1967-05-01), Maunus et al.
patent: 3753481 (1973-08-01), Piola et al.
patent: 4003200 (1977-01-01), Zerlauth
patent: 4249371 (1981-02-01), Romeyke
patent: 4507926 (1985-04-01), Teckentrup et al.
Anchell Scott
Braun Leslie A.
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