Screw compressor having rotors mounted on one side
AssigneeGardner Denver Deutschland GmbH
InventorUlrich Thomes
Life of this patent
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Abstract
A screw compressor for compressing a medium, having a drive unit which has a drive, and having a compressor unit which has two mutually engaging rotors with screw profiles, which are complementary to one another, and a compressor housing having an inlet and an outlet. The rotors are coupled to the drive unit via a shaft in each case. The shafts are only mounted on the drive side of the rotors. The rotors are mounted only on one side relative to their axial direction and are not mounted on the side which faces axially away from the drive.
Claims20
A screw compressor assembly for compressing a fluid medium, the screw compressor assembly comprising:
- a drive unit configured to drive a first shaft and a second shaft, the first shaft having a first end and a second end, the first end configured to be driven by the drive unit;
- a compressor unit including a compressor housing, a main rotor and a subsidiary rotor, the first shaft rotatably driving the main rotor and the second shaft rotatably driving the subsidiary rotor;
- and
- a bearing unit disposed between the drive unit and the compressor unit, the bearing unit housing the first shaft and the second shaft and including a pair of gearwheels, each one of the pair of gearwheels respectively coupled to the first shaft and the second shaft and configured to synchronously drive the second shaft with respect to the first shaft;
- wherein the main rotor and the subsidiary rotor are respectively mounted to the first shaft and the second shaft on a first axial direction.
A screw compressor assembly for compressing a fluid medium, the screw compressor assembly comprising:
- a drive unit configured to drive a first shaft and a second shaft, the first shaft configured to be directly driven by the drive unit;
- a compressor unit including a compressor housing, a main rotor and a subsidiary rotor, the first shaft rotatably driving the main rotor and the second shaft rotatably driving the subsidiary rotor;
- a first gearwheel and a second gearwheel, the first gearwheel coupled to the first shaft and the second gearwheel coupled to the second shaft;
- and
- a bearing unit disposed between the drive unit and the compressor unit, the bearing unit housing the first shaft, the second shaft, the first gearwheel, and the second gearwheel, the bearing unit including a first plurality of bearings and a second plurality of bearings, the first plurality of bearings supporting the first shaft and the second plurality of bearings supporting the second shaft;
- wherein the second gearwheel and the first gearwheel are configured to synchronously drive the second shaft with respect to the first shaft.
Dependencies are inferred from the claim text.