Rotary fluid machine

F - Mech Eng,Light,Heat,Weapons – 04 – B

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Details

F04B 27/06 (2006.01) F01B 13/06 (2006.01) F01C 1/344 (2006.01) F01C 21/08 (2006.01) F02G 5/00 (2006.01) F04C 18/344 (2006.01) F02B 53/00 (2006.01)

Patent

CA 2421188

Rotary fluid machinery, wherein pistons (41) are slidably fitted into a plurality of cylinders (39) disposed radially in a rotor (31), a plurality of vanes (42) operated in association with the pistons (41) are disposed radially, and a vane chamber (54) is formed between the pair of vanes (42) adjacent to each other, and the radial movements of the pistons (41) and vanes (42) are stopped in the period from the end of an exhaust stroke for exhausting gas phase working media from the cylinders (39) and vane chambers (54) to the start of an intake stroke for starting the supply of the gas phase working media so that the volumes of the cylinders (39) and vane chambers (54) do not vary, whereby a water hammering by liquid phase working media enclosed in the cylinders (39) and vane chambers (54) can be prevented from occurring.

L'invention concerne une pompe à fluide rotative, comprenant des pistons (41) situés de façon coulissante dans une pluralité de cylindres (39) disposés radialement dans un rotor (31), une pluralité d'ailettes (42) actionnées avec les pistons (41) et disposées radialement, et une chambre d'ailettes (54) formée entre la paire d'ailettes (42) adjacentes l'une par rapport à l'autre. Les mouvements radiaux des pistons (41) et des ailettes (42) sont arrêtés durant la période comprise entre la fin d'un temps d'échappement destiné à l'expulsion des gaz des cylindres (39) et des chambres d'ailettes (54) et le début d'un temps d'admission du mélange gazeux destiné à commander l'admission de façon que les volumes des cylindres (39) et des chambres d'ailettes (54) ne varient pas, ce qui permet d'éviter un coup de bélier de la phase liquide située dans les cylindres (39) et les chambres d'ailettes (54).

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