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1. (WO2003074880) DOUBLE COMPRESSOR HAVING PLANETARY ROTORS

Pub. No.:    WO/2003/074880    International Application No.:    PCT/KR2003/000403
Publication Date: Sep 12, 2003 International Filing Date: Mar 3, 2003
IPC: F04C 18/10
F04C 18/344
F04C 23/00
F04C 29/04
Applicants: CHO, Bong-Hyun
Inventors: CHO, Bong-Hyun
Title: DOUBLE COMPRESSOR HAVING PLANETARY ROTORS
Abstract:
The present invention relates to a double compressor, and the double compressor comprises a housing, a first rotor supported by metal bearings inside the housing, a planetary rotor provided eccentrically inside the first rotor, wherein a first suction chamber and a first compression chamber are provided against the first rotor and the inner circumference is formed with a trochoid curved surface, a plurality of first vanes provided in the outer circumference of the planetary rotor, wherein gas is first compressed in the first compression chamber when the planetary rotor revolves; a second rotor having a trochoid curved surface provided on the same axis with the first rotor inside the planetary rotor, as well as tooth-combined with a trochoid curved surface of the planetary rotor to form a second suction chamber that the first compressed gas is inhaled and a second compression chamber that the gas inhaled into the second suction chamber is compressed; a second vane provided in the outer circumference of the second rotor, wherein the gas is second compressed and discharged into the discharge passage; and a rotary axis fixed at the center portion of the second rotor for revolving the second rotor.