EP 0761973 A2 19970312 - Gas compressor
Title (en)
Gas compressor
Title (de)
Gasverdichter
Title (fr)
Compresseur à gaz
Publication
Application
Priority
JP 23137295 A 19950908
Abstract (en)
A gas compressor has a cylinder chamber (27) provided with discharge holes. Openings (37,38) are in communication with respective discharge holes. Discharge passages (40,41) having the same length are connected with respective openings (37,38). The ends of the discharge passages are connected with a common passage (49). During operation of the cylinder chamber (27), discharge valves cause the expelled gas to produce pulsations on the upstream side of the two openings (37,38). The pulsations are shifted in phase by a half wavelength. Noise due to the pulsations is reduced, because the pulsations of the expelled gas cancel out each other when the gas flows through the common passage (49). <IMAGE>
IPC 1-7
IPC 8 full level
F04C 29/06 (2006.01); F04C 18/344 (2006.01); F04C 29/00 (2006.01)
CPC (source: EP)
F04C 29/0035 (2013.01); F04C 18/3446 (2013.01)
Designated contracting state (EPC)
DE FR GB NL SE
DOCDB simple family (publication)
EP 0761973 A2 19970312; EP 0761973 A3 19980513; JP H0979156 A 19970325
DOCDB simple family (application)
EP 96306183 A 19960823; JP 23137295 A 19950908