To provide a simple and low-cost vibrationproof spring suitable for preventing the vibration of a working part of an expansion valve.
An expansion valve 1 of a certain embodiment includes a first passage 13 that penetrates a body 2 and has an intake port of a refrigerant at one end and a discharge port of the refrigerant at the other end, a valve hole 16 formed at an intermediate part of the first passage 13, a valve disc 18 to open and close the valve hole 16, a power element 3 to generate a driving force to actuate the valve disc 18, a shaft 33 that is supported by the body 2 and transmits the driving force of the power element 3 to the valve disc 18, and the vibrationproof spring 50 that is installed between the body 2 and the shaft 33 and energizes the shaft 33 to give sliding resistance. The vibrationproof spring 50 is formed by bending an elastic plate strip at a plurality of locations in the longitudinal direction thereof.
WATANABE TAKESHI
KANEKO TAKESHI
| JP2006003056A | 2006-01-05 | |||
| JP2004293779A | 2004-10-21 | |||
| JP2008014628A | 2008-01-24 | |||
| JPS61140266U | 1986-08-30 | |||
| JPH08145505A | 1996-06-07 | |||
| JP2009192198A | 2009-08-27 |
Yusuke Murata
Tomoyuki Miki
Takuya Matsuo
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