REFRIGERATING CYCLE DEVICE
PROBLEM TO BE SOLVED: To provide a refrigerating cycle device in which an expansion valve suitable for refrigerant flow control, reducing refrigerant flow sound and having proof stress to plugging of foreign matter is installed. SOLUTION: A valve chamber 5 provided with an inflow port 32 formed in a...
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| creator | BABA MASANOBU AOSHIMA SHIGEAKI HIRONAKA YASUO HIRAKUNI SATORU TSUKIORI KAZUHIDE |
| description | PROBLEM TO BE SOLVED: To provide a refrigerating cycle device in which an expansion valve suitable for refrigerant flow control, reducing refrigerant flow sound and having proof stress to plugging of foreign matter is installed. SOLUTION: A valve chamber 5 provided with an inflow port 32 formed in a side face, and a valve seat 6 formed at a bottom face, is formed inside an expansion valve body part 3 of the expansion valve 1, and a needle 2 that can advance to and retreat from the valve seat 6 is installed penetrating the top face of the valve chamber 5. A needle tip part 4 gradually reduced in diameter in a flow-out direction is formed at the tip of the needle 2, and the valve seat 6 is formed with an orifice inlet part 7 gradually reduced in diameter in the flow-out direction, an orifice center part 8 of approximately cylindrical shape, and an orifice outlet part 9 gradually enlarged in diameter in the flow-out direction. A clearance passage 47 gradually narrowed in the flow-out direction is thereby formed by the needle tip part 4 and the orifice inlet part 7, and the separation of refrigerant flow is reduced in the start position of the orifice center part 89 to reduce noise. COPYRIGHT: (C)2007,JPO&INPIT |
| format | Patent |
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SOLUTION: A valve chamber 5 provided with an inflow port 32 formed in a side face, and a valve seat 6 formed at a bottom face, is formed inside an expansion valve body part 3 of the expansion valve 1, and a needle 2 that can advance to and retreat from the valve seat 6 is installed penetrating the top face of the valve chamber 5. A needle tip part 4 gradually reduced in diameter in a flow-out direction is formed at the tip of the needle 2, and the valve seat 6 is formed with an orifice inlet part 7 gradually reduced in diameter in the flow-out direction, an orifice center part 8 of approximately cylindrical shape, and an orifice outlet part 9 gradually enlarged in diameter in the flow-out direction. A clearance passage 47 gradually narrowed in the flow-out direction is thereby formed by the needle tip part 4 and the orifice inlet part 7, and the separation of refrigerant flow is reduced in the start position of the orifice center part 89 to reduce noise. 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SOLUTION: A valve chamber 5 provided with an inflow port 32 formed in a side face, and a valve seat 6 formed at a bottom face, is formed inside an expansion valve body part 3 of the expansion valve 1, and a needle 2 that can advance to and retreat from the valve seat 6 is installed penetrating the top face of the valve chamber 5. A needle tip part 4 gradually reduced in diameter in a flow-out direction is formed at the tip of the needle 2, and the valve seat 6 is formed with an orifice inlet part 7 gradually reduced in diameter in the flow-out direction, an orifice center part 8 of approximately cylindrical shape, and an orifice outlet part 9 gradually enlarged in diameter in the flow-out direction. A clearance passage 47 gradually narrowed in the flow-out direction is thereby formed by the needle tip part 4 and the orifice inlet part 7, and the separation of refrigerant flow is reduced in the start position of the orifice center part 89 to reduce noise. COPYRIGHT: (C)2007,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
| recordid | cdi_epo_espacenet_JP2007032979A |
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| subjects | ACTUATING-FLOATS BLASTING COCKS COMBINED HEATING AND REFRIGERATION SYSTEMS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS |
| title | REFRIGERATING CYCLE DEVICE |
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