| 摘要 |
A piston compressor comprises a piston ( 12 ) which oscillates in a cylinder ( 14 ). A compressed-gas supply arrangement is provided which comprises a compressed-gas accumulator ( 34 ), a compressed-gas supply line ( 18 ) between a compressed-gas source ( 20 ) and the compressed-gas accumulator ( 34 ). Further, the compressed-gas supply line ( 18 ) comprises an inlet valve ( 42 ) which is open when the piston ( 12 ) is in a filling position. The inlet valve ( 42 ) is defined by a cylinder wall opening ( 22 ) and a piston wall opening ( 38 ) which are located opposite each other when the piston ( 12 ) is in the filling position, thus defining an open valve, and which are closed by the piston wall ( 40 ) and the cylinder wall ( 24 ), respectively, when the piston ( 12 ) is in the non-filling position, thus defining a closed valve. Thereby, a valve is provided which does not comprise any moving parts and is thus easy to manufacture, is highly reliable and has a long service life.
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