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 | |||
JP2011069450A | 2011-04-07 | |||
JP2002500129A | 2002-01-08 | |||
JPH05502287A | 1993-04-22 |
WO2009093608A1 | 2009-07-30 |