Balancer for use in centrifugal rotary machine
AssigneeTokyo Shibaura Denki Kabushiki Kaisha
InventorsHisao Tatsumi, Michiaki Ito
Life of this patent
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Abstract
A balancer for use in a centrifugal rotary machine comprises an annular casing having inside an annular receiving chamber and equipped to the rotary tub coaxially therewith. A low-viscous operating liquid is sealed into the annular receiving chamber so as to be flowable in the circumferential direction of the chamber. The operating liquid flows, as the rotary tub rotates, to the side opposite to that on which the unbalanced load of the rotary tub is located absorb the unbalance of the rotary tub. A plurality of spherical weights are disposed circumferentially and movably in the annular receiving chamber and, as the rotary tub rotates, move to the side opposite to that on which the unbalanced load of the rotary tub is located to absorb the unbalance of the rotary tub.
Claims9
A balancer used in a centrifugal rotary machine for reducing the vibration of support means for supporting a cylindrical rotary tub, which occurs due to the existence of an unbalanced load in the rotary tub, comprising:
- an annular casing having an annular receiving chamber therein and attached to the rotary tub coaxially;
- a low-viscous operating liquid cirumferentially and flowably sealed in the annular receiving chamber and, as the rotary tub rotates, flowing to the side opposite to that on which the unbalanced load of the rotary tub is located to absorb the unbalance of the rotary tub;
- and
- a plurality of spherical weights circumferentially movable disposed in the annular receiving chamber and, as the rotary tub rotates, moved to the side opposite to that on which the unbalanced load of the rotary tub is located to absorb the unbalance of the rotary tub, each spherical weight being formed of an elastic material containing powdered lead oxide.
Dependencies are inferred from the claim text.