Synchronous rotating apparatus for rotating a plurality of shafts

A synchronous rotating apparatus for use with a fluid rotary apparatus;

• the fluid rotary apparatus comprising:
• a plurality of rotors accommodated in a housing;
• bearings for supporting rotation of the rotors;
• suction and discharge fluid ports formed in the housing;
• and
• motors for rotating and driving the plurality of rotors independently;
• the synchronous rotating apparatus comprising:
• a mechanical regulating member, arranged on the rotors, for maintaining relative rotating positions of the rotors at a predetermined angular difference;
• a rotation velocity and phase-detecting member, arranged on each rotor, for detecting rotation velocities of the rotors and phases within a regulated angular difference of the mechanical regulating member;
• and
• a driving control device for controlling the motors of the rotors to synchronously rotate the rotors based on a phase difference detected by the rotation velocity and phase-detecting member;
• whereby the fluid is sucked and discharged by utilizing a change of a volume of a space defined by the rotors and the housing through synchronous control of the rotation of the motors by the driving control device.

A synchronous rotating apparatus for synchronously rotating a plurality of rotary shafts independently driven by corresponding driving devices, comprising:

• a mechanical regulating means, arranged on the plurality of rotary shafts, for maintaining relative rotating positions of the plurality of rotary shafts at a predetermined angular difference;
• a rotation velocity and phase-detecting means, arranged on each rotary shaft, for detecting rotation velocities of the rotary shafts and phases within a regulated angular difference of the mechanical regulating means;
• and
• a driving control means for controlling the driving devices of the rotary shafts to synchronously rotate the rotary shafts based on a phase difference detected by the rotation velocity and phase-detecting means.