Multi-stage piston compressor
Patent Information
- Authority / Receiving Office
- US · United States
- Patent Type
- Applications(United States)
- Current Assignee / Owner
- BORSIG COMPRESSOR PARTS GMBH
- Publication Date
- 2009-12-17
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
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Abstract
Description
BACKGROUND OF THE INVENTION
[0001] The invention relates to a multi-stage piston compressor having at least two piston-cylinder units.
[0002] Multi-stage piston compressors are known, in order to increase the pressure of a gas in several stages. With such multi-stage compressors, the exit pressure is increased in a first stage to a first intermediate pressure by a first piston-cylinder unit. This first intermediate pressure is then increased to a yet higher pressure in the second stage by a second piston-cylinder unit. This continues in accordance with the number of applied stages. With the known piston compressors, the pistons of all piston-cylinder units are driven via a common crank drive, which fixedly sets the stroke of the piston. Moreover, the diameter of the individual cylinders is selected differently, depending on the pressure ratio between the individual stages, i.e. the inner diameter of the cylinders reduces from stage to stage, since the volume of the gas decreases with ea...