To provide a pressure regulator that stably opens and closes a valve body to thereby reduce vibration or abnormal noise.
The pressure regulator 10 includes: a casing 12 including a valve chamber 20 having an entrance 21 and an exit 28, and a valve seat 23 disposed on the side of the valve chamber of the entrance 21; a valve body 30 for opening and closing the valve seat 23; and a coil spring 40 interposed between the valve body 30 and the casing 12 to press the valve body 30 to a closing direction. The valve body 30 includes a stem 33 axially extending on the side of the coil spring. At the end of a fixed side of the coil spring 40, a stem support part 45 that comes in contact with the stem 33 from the side opposite an inclination direction of the stem 33 due to a lateral force of the coil spring 40 while an axial line of the stem 33 is aligned with an axial line of the coil spring 40.
ITO SHIGETO
MITSUI KENJI
| JP2008138785A | 2008-06-19 | |||
| JP2011064272A | 2011-03-31 | |||
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| JP2002500129A | 2002-01-08 | |||
| JPH05502287A | 1993-04-22 |
| WO2009093608A1 | 2009-07-30 |