Compressor has spiral compression device with bearing box, sealing element for air-tight separation of rear volume and fluid suction side of compression unit

摘要

The compressor has a compression unit with a fixed spiral, a movable spiral, a shaft for driving the movable spiral with a crank region, a bearing rotatably connecting the movable spiral and crank region, a bearing box for accommodating the bearing and for bounding a rear volume into which high pressure fluid flows from an output aperture, and which is separated from the compression volume, and a sealing element. The compressor has a compression unit with a fixed spiral (111), a movable spiral (112), a shaft (115) for driving the movable spiral with a crank region, a bearing (116) rotatably connecting the movable spiral and crank region, a bearing box for accommodating the bearing and for bounding a rear volume (117) into which high pressure fluid flows from an output aperture, and which is separated from the compression volume, and a sealing element (118a) for air-tight separation of the rear volume and the fluid suction side of the compression unit.