Patent ID: 6174140
Filing Date: 2001-01-16
Classification: F04B

Abstract:
A compressor for compressing gas that contains atomized oil, the compressor including a housing, a gas compression mechanism located within the housing, and a discharge chamber into which the gas compressed by the compression mechanism is discharged, wherein the compressor comprises:a muffler base arranged on the housing;a muffler cover removably attached to the muffler base such that a muffler is enclosed by the muffler base and the muffler cover;a partition separating the muffler into a first muffler chamber and a second muffler chamber, the first muffler chamber being defined by the muffler base and the partition and the second muffler chamber being defined by the muffler cover and the partition, wherein the partition has an opening for connecting the first muffler chamber with the second muffler chamber, and wherein the muffler cover has a gas outlet connected with the second muffler chamber;a discharge passage connecting the discharge chamber to the first muffler chamber, wherein compressed gas is sent out of the compressor by way of the discharge chamber, the discharge passage, the first muffler chamber, the partition opening, the second muffler chamber, and the gas outlet, wherein pressure pulsation of the compressed gas is attenuated by the first and second muffler chambers, and wherein the atomized oil is separated from the compressed gas when passing through the first muffler chamber and the gas outlet is located at any one of a plurality of locations on the muffler cover without affecting the oil separating operation of the first muffler chamber; anda recovery passage connected to the first muffler chamber to drain the separated oil in the first muffler chamber to portions of the compressor requiring lubrication.