Title:
SIPHON CONTROL VALVE
Document Type and Number:
Japanese Patent JP2586773
Kind Code:
B2
Abstract:
PURPOSE: To improve durability or the like against repeated use by forming a pressure receiving chamber, a middle chamber and a vacuum chamber extendingly from top to bottom, putting a center rod having a valve seat portion at its lower end, extendingly through respective chambers, and at the same time providing bellows at the periphery of the center rod.
CONSTITUTION: A pressure receiving chamber 1, a middle chamber 2 and a vacuum chamber 3 are formed extendingly from top to bottom, and at the same time by furnishing interveniently plural partition plates 7, 9 and a valve seat plate 11 between these, a ventilation line chamber 4 and a siphon line chamber 5 are divided. Also, a center rod 13 that has a valve seat portion 12 at its lower end, is made to penetrate into respective chambers 1, 2 extendingly, and at the same time respective bellows 17, 19 are respectively provided between respective partition plates 7, 9 and plural support plates 15, 18 provided projectingly at this. In addition, a valve body 24 consisting of upper and lower ball valves 22, 23 is mounted on the upper surface of a base valve seat 21 energized upward by means of a spring 20, and the lower ball valve 23 is butted against the valve seat portion 10 of the valve seat plate 11. Meanwhile, the upper ball valve 22 is butted against the valve seat portion 12 at the time of center rod 13 descent.
Inventors:
IWASAKI SEIGO
Application Number:
JP6242492A
Publication Date:
March 05, 1997
Filing Date:
March 18, 1992
Export Citation:
Assignee:
DORYOKURO KAKUNENRYO KAIHATSU JIGYODAN
International Classes:
B67D7/02; B67D7/72; F04F10/00; F16K11/056; G21F9/04; (IPC1-7): F04F10/00; B67D5/54; F16K11/056; G21F9/04
Domestic Patent References:
| JP5223728A | ||||
| JP4244685A | ||||
| JP5713976B2 |
Attorney, Agent or Firm:
Yukio Ogata