Unbalance compensator

For a machine having a rotary mass requiring balancing, an unbalance compensator comprising a rotary portion adapted to be mounted on the rotary mass requiring balancing, said unbalance compensator further comprising a stationary portion, balancing mass means on the rotary portion, distribution means for distributing the balance mass means on the rotary portion so as to correct for imbalance, an air gap separating the stationary and rotary portions allowing the rotary portion to rotate without contacting the stationary portion, and control means for the distribution means, said control means comprising transmitting means on the stationary portion, receiving means on the rotary portion separate from said balance mass means, and means for transmitting energy across the air gap from the transmitting means to the receiving means.

For a machine having a rotary mass requiring balancing, an unbalance compensator comprising a rotary portion adapted to be mounted on the rotary mass requiring balancing and a stationary portion, said rotary portion including balance mass means which is distributed on the rotary portion to maintain balance, control means for controlling the distribution of the balance mass means, said control means comprising means for encoding correction information for correction of imbalance, an air gap separating said rotary and stationary portions, decoding means on the rotary portion separate from said balance mass means, and means for transmitting encoded information across the air gap to said decoding means, said decoding means comprising means for decoding the encoded information so that the balance mass is distributed in accordance with the correction information contained in the encoded information.

For an unbalance compensator which is used to balance a rotary mass requiring balancing, said unbalance compensator including balance mass means which is distributed with respect to the rotary mass to maintain balance, a control system for controlling the distribution of said balance mass means, said control system comprising means for encoding correction information for correction of imbalance, decoding means for decoding the correction information from the encoded correction information, means for transmitting the encoded correction information from said encoding means to said decoding means, said decoding means comprising means separate from said balance mass means for decoding the encoded information and controlling distribution of said balance mass means so that the balance mass means is distributed on the rotary mass in accordance with the decoded correction information.

In a spindle-mounted balancer, a plurality of circumferentially disposed chambers partially filled with fluid having liquid and vapor phases and serving as a distributable balancing mass, said chambers being connected by suitable conduit means to allow free flow of vapor of said fluid between chambers, and means to create a differential condition between said chambers, said chambers and said conduit means being organized and arranged such that in response to said differential condition, vapor of said fluid passes through said conduit means unaccompanied by liquid.

In a spindle-mounted balancer, a plurality of circumferentially disposed chambers partially filled with a vaporizable liquid serving as a distributable balancing mass, said chambers being connected by suitable conduit means to allow free flow of vapor of said liquid between said chambers, said chambers being provided with means to create vapor pressure differential between said chambers, the organization and arrangement of said chambers and said conduit means being such that said vapor pressure differential is effective to induce balancing mass transfer between said chambers by flow of vapor of said liquid through said conduit means unaccompanied by flow of liquid through said conduit means.

A method of distributing balancing mass in a spindle-mounted balancer having a plurality of circumferentially disposed chambers comprising partially filling said chambers with a vaporizable liquid serving as a distributable balancing mass, communicating said chambers by suitable conduit means to allow free flow of vapor of said liquid between said chambers, creating vapor pressure differential between said chambers to induce vaporous balancing mass transfer between said chambers by flow of vapor of said liquid through said conduit means unaccompanied by flow of liquid through said conduit means.

In a spindle-mounted balancer, a plurality of circumferentially disposed chambers, conduit means commonly connecting said chambers to allow free flow of vapor of a liquid between said chambers, said conduit means having for each chamber a port end disposed substantially at a three dimensional geometric center of each said chamber, means for creating a vapor pressure differential between said chambers, the organization and arrangement of said chambers and said conduit means being such that said vapor pressure differential is effective to induce vaporous balancing mass transfer between said chambers by flow of vapor of said liquid through said conduit means and wherein the total amount of liquid in said chambers and conduits does not exceed one half the total volume of any one of said chambers.