Vane-type compressor

Abstract

Abstract PURPOSE: To maintain almost constant capacity with a simple construction, even when the number of revolution of rotor is subjected to marked changes, by installing a valve which selectively opens or closes a plurality of suction nozzles partially. CONSTITUTION: Suction nozzles 10a, 10a', 10b and 10b' are formed in side blocks 2a and 2b. The suction nozzles 10a and 10a' are provided with valves 18a and 18b which open or close the suction channel. The valves 18a and 18b are opened or closed by valve actuators 19a and 19b which are driven by electricity. If the operation of the valve actuators 19a and 19b is so controlled that both valves 18a and 18b may be opened when the revolution speed of the rotor is slow and that either one valve 18a or 18b may be opened when the speed is intermediate and that both valves 18a and 18b may be closed when the speed is fast, almost a constant performance can be assuredly maintained irrespective of the revolution speed of the rotor. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Haruhiko Takada

Bibliographic Details