To provide a check valve that can suppress vibration of a valve element while facilitating assembling and making the size smaller, the check valve including: a valve housing having a valve chamber formed inside to be always led to an outlet side flow passage, and a valve seat formed with an inlet side flow passage opened toward the valve chamber; a valve element having a valve part that can sit on the valve seat, and a shaft that is provided continuously to the valve part at the opposite side to the inlet side flow passage; and an urging member for urging the valve element toward the sitting side on the valve seat, wherein a flow resistance part is provided on the valve element for giving flow resistance to the valve element, the flow resistance exerted from the fluid flowing from the inlet side flow passage to the outlet side flow passage through the valve chamber.
The flow resistance part 44 is provided on the shaft 41A between the valve part 40 and a guide hole 36 of a guide member 26.
WAKAO HIROSHI
NAOI YASUO
| JP2011094705A | 2011-05-12 | |||
| JPH0367778U | 1991-07-02 | |||
| JPH02190681A | 1990-07-26 | |||
| JP2008509365A | 2008-03-27 | |||
| JP2003232456A | 2003-08-22 | |||
| JP2011033110A | 2011-02-17 | |||
| JP2011007275A | 2011-01-13 |
Kazuaki Niki
Nude Shima Shinji