ROUDONG VOLUME CHANGE METHOD, ROUDONG MECHANISM, ROUDONG VOLUME CHANGE MECHANISM, TYPE OF ROUDONO VOLUME CHANGE METHOD, AND TYPE OF ROUDONG MECHANISM APPLICATIONS The present invention relates to a kneading and displacement method for a fluid machinery and its use. The invention is suitable for application to internal combustion engines, pumps, engines, chillers, and meters. During kneading and shifting, the volume variation disc revolutionizes and rotates in opposite directions in a cavity, producing kneading and shifting motion, usually with velocity, momentum momentum, and low losses compared to rotor motion, and additionally without lubrication. The fluid machinery operating with the kneading and displacement method of the present invention may be used for gas and liquid, and has wide use.
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