| 摘要 |
The radial piston or reciprocating engine ( 1 ) has annularly juxtaposed, radially directed piston-cylinder units ( 2, 3 ). The outward stroke of the pistons ( 2 ) is controlled by the cam ( 11 ) of a common eccentric shaft ( 12 ), whereas the inward stroke thereof is controlled by a control ring ( 16 ), which engages in a lateral recess ( 17 ) of each piston ( 2 ) running in the direction of a secant and adapted to a cross-sectional shape of the control ring ( 16 ). The recess ( 17 ) is then bounded by a base wall of the piston ( 2 ) with which the control ring ( 16 ) is in controlling sliding contact via an inner control face ( 20 ). The pistons ( 2 ) are hollow and carry on their face the diaphragm of a diaphragm valve. Thus, the reciprocating engine ( 1 ) has a particularly compact construction and can be highly loaded, so that it is particularly suitable as a compressor of a CO<SUB>2 </SUB>vehicle air conditioning system.
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