Apparatus for achieving isotherm-like compression or expansion of a gas
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Double-cone roller drive
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Friction discs which provide guidance
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Drive for multi-stage contrarotating axial compressor
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Counterflow heat exchanger with spiral surfaces
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Friction impeller pump for gas or liq. - has rotors with circumferential annular grooves in mutual engagement and connected to inlet and outlet ports in housing
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Vane pump with equalised viscous drag - has rotating vanes and rotor disc with hub mounted ring integral with pump cover
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Eccentrically mounted adjustable pump - has radially mounted cylinders located in central disc with central dividing wall forming inlet and outlet
