JPS63173646U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の一実施例による複合ガス弁
を示す断面図、第２図は従来の複合ガス弁を示す
断面図である。 図において、１はガスボデイユニツト、２，３
は第１、第２のガス流路、８はパイロツト流路、
１１，１５は第１、第２のガス弁、１２，１６は
第１、第２のステム、１３，１７は第１、第２の
受圧体、１４，１８は第１、第２のばね、２１は
パワーヘツド、２２，２５は第１、第２の圧力室
、２３，２６は第１、第２の受圧ダイアフラム、
２４，２７は第１、第２の付勢ばね、３１はガバ
ナ、３４はサーボダイアフラム、３５はばね、３
６は付勢力調整螺子、３７はサーボダイアフラム
室、３８はレバー、４４は連通路、５１はタンク
、５２は油圧ポンプ、５４は三方弁、５５は配管
、５６はノズルフラツパを示す。 FIG. 1 is a sectional view showing a composite gas valve according to an embodiment of this invention, and FIG. 2 is a sectional view showing a conventional composite gas valve. In the figure, 1 is the gas body unit, 2, 3
are first and second gas flow paths, 8 is a pilot flow path,
11 and 15 are first and second gas valves, 12 and 16 are first and second stems, 13 and 17 are first and second pressure receiving bodies, 14 and 18 are first and second springs, 21 is a power head, 22 and 25 are first and second pressure chambers, 23 and 26 are first and second pressure receiving diaphragms,
24 and 27 are first and second biasing springs, 31 is a governor, 34 is a servo diaphragm, 35 is a spring, 3
6 is a biasing force adjustment screw, 37 is a servo diaphragm chamber, 38 is a lever, 44 is a communication passage, 51 is a tank, 52 is a hydraulic pump, 54 is a three-way valve, 55 is piping, and 56 is a nozzle flapper.

Claims (1)

【実用新案登録請求の範囲】 (1) 第１のばねによつて第１のガス流路を閉塞
するように付勢され、油圧によつて前記第１のガ
ス流路を開放するように駆動される第１のガス弁
と、第２のばねによつて前記第１のガス流路と連
通する第２のガス流路を閉塞するように付勢され
、前記油圧の供給源からの油圧によつて前記第２
のガス流路を開放するように駆動される第２のガ
ス弁とを備えた複合ガス弁において、前記第２の
ガス流路の出口側からガスが流入する圧力室と、
この圧力室の一側面を形成する受圧ダイアフラム
と、この受圧ダイアフラムに一端が当接するレバ
ーと、このレバーの他端に前記レバーの一端で前
記受圧ダイアフラムを所定圧で押圧するための圧
力を与える圧力設定手段と、前記レバーの他端に
前記圧力設定手段と反対側から前記油圧供給源か
らの油圧を供給するノズルフラツパとからなるガ
バナを前記第１、第２のガス弁のいずれか一方に
対して設けたことを特徴とする複合ガス弁。 (2) 圧力設定手段は、電磁コイルで構成されて
いることを特徴とする実用新案登録請求の範囲第
１項記載の複合ガス弁。[Claims for Utility Model Registration] (1) Forced by a first spring to close the first gas flow path, and driven by hydraulic pressure to open the first gas flow path. a first gas valve that is biased by a second spring to close a second gas flow path that communicates with the first gas flow path; Therefore, the second
a pressure chamber into which gas flows from the outlet side of the second gas flow path;
A pressure receiving diaphragm forming one side of the pressure chamber, a lever having one end in contact with the pressure receiving diaphragm, and a pressure that applies pressure to the other end of the lever to press the pressure receiving diaphragm at a predetermined pressure with one end of the lever. A governor comprising a setting means and a nozzle flapper that supplies hydraulic pressure from the hydraulic pressure supply source to the other end of the lever from the side opposite to the pressure setting means is attached to one of the first and second gas valves. A composite gas valve characterized by the following: (2) The composite gas valve according to claim 1, wherein the pressure setting means is comprised of an electromagnetic coil.