Expansion device with shutoff mechanism

An expansion device that is able to perform the functions of refrigerant expansion, flow control and shut-off. A cage (26, 27, 28, 30, 34, 36 and 38) extends from the ends (14 and 16) of a body (12) and supports a screen cover (32, 40) . An orifice tube (46) extends through the body (12) and a conic...

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Bibliographic Details
Main Authors GHODBANE, MAHMOUD, BAKER, JAMES ALLEN
Format Patent
LanguageEnglish
French
German
Published 19.04.2006
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:An expansion device that is able to perform the functions of refrigerant expansion, flow control and shut-off. A cage (26, 27, 28, 30, 34, 36 and 38) extends from the ends (14 and 16) of a body (12) and supports a screen cover (32, 40) . An orifice tube (46) extends through the body (12) and a conical shaped valve seat (48) forms an outwardly flared inlet to the orifice tube (46) . A plunger (50) defines a conical shaped valve end (52) for engaging and sealing the conical valve seat (48) to prevent refrigerant from entering the orifice tube (46) . A rod (54) extends from the valve end (52) to react with a solenoid coil (56) for moving the valve end (52) into and out of engagement with the valve seat (48) . A spring (58) interacts between the plunger (50) and the solenoid (56) for urging the plunger (50) into the valve seat (48) .
Bibliography:Application Number: EP20040075963