EJECTOR HAVING AN ACTUATION MECHANISM WITH A PILOT VALVE AND AN EQUALIZATION PASSAGE BETWEEN TWO CYLINDER CHAMBERS

The present invention relates to an ejector (1), e.g. for a refrigerant circuit, with a primary inlet (2), a secondary inlet (7), an outlet (12), a nozzle (5), and a mixing portion (6, 10). The ejector (1) comprises an actuating mechanism (30) moving a needle (20) between an opened position and a cl...

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Bibliographic Details
Main Author Birkelund, Michael
Format Patent
LanguageEnglish
French
German
Published 21.02.2024
Subjects
BLASTING
COMBINED HEATING AND REFRIGERATION SYSTEMS
HEAT PUMP SYSTEMS
HEATING
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
MANUFACTURE OR STORAGE OF ICE
MECHANICAL ENGINEERING
REFRIGERATION MACHINES, PLANTS OR SYSTEMS
REFRIGERATION OR COOLING
WEAPONS
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Summary:The present invention relates to an ejector (1), e.g. for a refrigerant circuit, with a primary inlet (2), a secondary inlet (7), an outlet (12), a nozzle (5), and a mixing portion (6, 10). The ejector (1) comprises an actuating mechanism (30) moving a needle (20) between an opened position and a closed position. For ensuring smooth opening and closing, the actuation mechanism (30) comprises a piston (31) in a cylinder (35), wherein a first cylinder chamber (37) is in fluid communication with the primary inlet (2) and a second cylinder chamber (38) is in fluid communication with the first cylinder chamber (37) via an equalization passage (32). The second cylinder chamber (38) is in fluid communication with the secondary inlet (7) and/or the outlet (12) via a drain passage (39, 53, 54, 55, 56, 57) when a pilot valve (50) arranged in the drain passage (39, 53, 54, 55, 56, 57) is in an open state.
Bibliography:Application Number: EP20220190394