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Patent Searching and Data


Title:
VALVE DRIVING DEVICE
Document Type and Number:
Japanese Patent JP3400557
Kind Code:
B2
Abstract:

PURPOSE: To provide a valve drive device which is constituted to be formed in a compact manner in such a way that a booster is located in a gas tank sealed with compression gas, such as incombustible gas, and eliminate a fear of fluid leaking to the outside, and provide excellent safety and economical efficiency.
CONSTITUTION: A valve drive device is constituted in such a manner that a cutoff valve or a discharge valve 2 located in a pipe line 1 for feeding fluid is operated; a booster 6 is arranged in a gas tank 4, a part of the booster 6 and the gas tank 4 are intercommunicated at the interior, and the booster 6 is connected to the cylinder 3a of an actuator 3 for driving a valve; and by driving the actuator 3 by a pressure boosted by the booster 6 by means of the pressure, serving as a power source, of the gas tank 4, the cutoff valve or the discharge valve 2 is operated.


Inventors:
Murata, Kiyoshi
Furumiya, Takashi
Nakanishi, Sadayuki
Sato, Koji
Fukunaga, Akio
Application Number:
JP1994000209248
Publication Date:
April 28, 2003
Filing Date:
August 10, 1994
Export Citation:
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Assignee:
OSAKA GAS CO LTD
KITZ CORP
International Classes:
F16K31/122; F15B3/00; F15B11/028; F16K31/12; F16K31/124; (IPC1-7): F16K31/122; F15B3/00; F15B11/028
Attorney, Agent or Firm:
小林 哲男