Machine element or mechanism – Elements – Flywheel – motion smoothing-type
Patent
1989-07-14
1991-04-09
Herrmann, Allan D.
Machine element or mechanism
Elements
Flywheel, motion smoothing-type
73660, 73667, 74 61, 74 87, 74573R, 248550, F16F 1510, G01H 1100
Patent
active
050054392
ABSTRACT:
An inertia force generating device comprises two pairs of coaxial counterrotating eccentric rotors, whose rotational speeds and relative positons are automatically and continuously controlled so as to cancel undesirable vibrations produced by another device. Within each rotor pair, the two rotors have an adjustable angle between their mass centers, so that the effective eccentricity of the pair can be varied, and the phase between the two pairs can also be changed, to alter the direction of the maximum or minimum inertial forces developed. The four rotors include shells of different diameter, nested together on a center plane of the device, or parallel plates configured to maintain a minimum spread of mass centers along the rotational axis.
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Jensen William S.
Ng David
Barry Wright Corporation
Herrmann Allan D.
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