To provide a low noise type electronic expansion valve capable of shutting off flow of refrigerant in a valve chamber into an inside of a can by a disc bellows.
The electronic expansion valve has a can bent part 12 in which a lower end terminal of the can 13 is bent inward while surrounding a round ceiling 14 inserted in a square projection groove 15 formed toward an inner diameter side at a lower side of an outer circumference edge projection part 18 of a case main body. A case part 10 comprising the can 13 having a ring shape projection 131 formed on an upper surface for reducing noise and vibration generated inside, and a disc bellows support ring 41 are joined and formed together at a guide surface 54 of a valve body 50 for sealing the can 13 and an inside of a case body 11. A disc bellows 40 provided in such a manner that an outer circumference edge terminal of the disc bellows support ring 41 is fixed at an upper part of the valve body 50 and a positioner body part 30 coupled to the case body 11 are connected.
JPH04106580 | [Title of the device] Shock wave absorber |
JP2006316949 | ZERO ADJUSTMENT ARM USED IN POSITIONER |
HAM DEOK YONG
HAM YOUNG BOG
PARK JOONG HO
JEONG BYEONG HONG
LEE GUN WOO
GREEM INDUSTRY CO LTD
JP2006132631A | 2006-05-25 | |||
JPH0389826A | 1991-04-15 | |||
JPS6485589A | 1989-03-30 | |||
JPS57157874A | 1982-09-29 | |||
JP2000213368A | 2000-08-02 | |||
JPS6068040A | 1985-04-18 | |||
JPH0251664A | 1990-02-21 | |||
JPH10110850A | 1998-04-28 | |||
JPS6275285A | 1987-04-07 |
Kiichi Sawaki
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