Title:
VALVE APPARATUS
Document Type and Number:
Japanese Patent JPS60136670
Kind Code:
A
Abstract:
PURPOSE:To open a valve by a relatively small power by advancing an auxiliary valve and then advancing the valve and successively opening the valve openings having small and large diameters. CONSTITUTION:An auxiliary valve opening 10 in parallel to a valve opening 5 is formed onto a valve 8, and the captioned apparatus is equipped with an auxiliary valve 11 consisting of a spool valve which extends in the longitudinal direction, passing the inside of the valve opening 10, and opening/closing-controls the valve opening 10, and said auxiliary valve 11 is opposed to a push rod 6 at the tail edge, and opposed to the back surface of the valve 8, keeping a distance 13 at the stepped part 12 in the front, and the auxiliary valve 11 is opened by the advance of the push rod 6, and then the valve 8 is pushed by the auxiliary valve 11 through the stepped part 12 and advanced, and then the valve opening 5 is opened. Therefore, the valve 8 can be opened in the state where the differential pressure between the front and the back is little, with a relatively small power.
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Inventors:
SUYAMA NORIO
AIDA KANAE
AIDA KANAE
Application Number:
JP24220683A
Publication Date:
July 20, 1985
Filing Date:
December 23, 1983
Export Citation:
Assignee:
RINNAI KK
International Classes:
F16K1/44; F16K31/44; F16K39/02; (IPC1-7): F16K1/44
Domestic Patent References:
| JPS407894Y1 |
Attorney, Agent or Firm:
Kinichi Kitamura