公开(公告)号：US3880186A

公开(公告)日：1975-04-29

申请号：US45413174

申请日：1974-03-25

申请人： ESSEX INTERNATIONAL INC

发明人： TURNER JESS H ,  WALLACE ELMER E ,  HURD CLAUD C

IPC分类号： F23N1/00 ,  F16K17/10 ,  F16K31/145

CPC分类号： F23N1/005 ,  F23N2035/14 ,  F23N2035/18 ,  F23N2035/20 ,  Y10T137/7782

摘要： Control Devices for controlling the flow of fuel to a gas burner. In a first embodiment of the invention a main valve is operated by a bleed controlled diaphragm. An electromagnetic operator operates an on-off bleed valve and an orifice bleed valve. The orifice bleed valve includes an operating stem surrounded by a valve collar through which an aperture extends. When the electromagnetic operator is deenergized, the on-off bleed valve is closed and a leaf spring is prevented from urging the orifice bleed valve collar against a corresponding valve seat, assuring full bleed flow to the operating chamber and maintaining the main valve in a closed position. When the electromagnetic operator is energized, the leaf spring is allowed to urge the orifice bleed valve collar against its corresponding valve seat and the on-off bleed valve is opened. Bleed gas is then supplied through the restricted aperture in the orifice bleed valve collar and is bled off to a servo regulator by the on-off bleed valve, reducing the operating chamber pressure, allowing the main valve to open and regulating the outlet pressure. A second embodiment of the invention provides a step flow to the burner which is pressure regulated on both low and high flow states. The first opening step is controlled in the same manner as the first embodiment of the invention. The second opening step, however, is provided by a second electromagnetic operated valve which, when opened, places the low pressure servo regulator and a high pressure servo regulator in parallel. When the servo regulators are connected in parallel, the high pressure regulator is dominant in regulating the outlet pressure.

摘要翻译： 用于控制燃料流向气体燃烧器的控制装置。 在本发明的第一实施例中，主阀由排气控制膜片操作。 电磁操作员操作开关放气阀和孔口放气阀。 孔口放气阀包括由阀口环围绕的操作杆，孔口通过该套环延伸。 当电磁操作器断电时，开关放气阀关闭，并且防止板簧将孔口放气阀套环推到相应的阀座上，确保充分渗流到操作室并将主阀保持在闭合状态 位置。 当电磁操作器通电时，允许板簧推动孔口放气阀套环抵靠其相应的阀座，并且开关放气阀打开。 然后通过孔口放气阀环中的限制孔提供排出的气体，并通过开关放气阀将其排出到伺服调节器，从而降低操作室压力，允许主阀打开并调节出口压力。

公开(公告)号：US3896857A

公开(公告)日：1975-07-29

申请号：US44409274

申请日：1974-02-20

申请人： ESSEX INTERNATIONAL INC

发明人： TURNER JESS H ,  WALLACE ELMER E ,  FIEDLER JR FRANK

IPC分类号： F23N1/00 ,  F16K31/42 ,  G05D23/185

CPC分类号： F23N1/005 ,  F23N2035/12 ,  F23N2035/18 ,  F23N2035/20 ,  Y10T137/86928

摘要： A dual shut-off gas control device having a diaphragm operated valve and a control valve disposed in series in the main flow path to control the flow of fuel to a main burner. A single bimetal element acts to operate both a bleed valve and a control or automatic valve in a sequential manner when heated by a thermostatically controlled heater. The bleed valve includes an inlet bleed valve connected to the inlet, an outlet bleed valve connected to an outlet pressure chamber and an outlet connected to an operating pressure chamber. The main diaphragm responds to a pressure differential between the outlet pressure chamber and the operating pressure chamber. Outlet pressure regulation is provided by a diaphragm operated pressure regulator valve which has its inlet connected to the outlet of the bleed valve and its outlet connected to the outlet of the control device. Dual shutoff of the main flow path is provided by the main diaphragm operated valve and the automatic valve and dual shut-off of the bleed flow path is provided by the inlet bleed valve and the pressure regulator valve. A modification of the main diaphragm operated valve provides for a step opening.

摘要翻译： 一种双关闭气体控制装置，其具有隔膜操作阀和串联设置在主流路中的控制阀，以控制到主燃烧器的燃料流。 当由恒温控制的加热器加热时，单个双金属元件用于以顺序方式操作泄放阀和控制或自动阀。 排放阀包括连接到入口的入口放气阀，连接到出口压力室的出口泄放阀和连接到操作压力室的出口。 主隔膜响应于出口压力室和操作压力室之间的压力差。 出口压力调节由隔膜操作的压力调节阀提供，该阀的入口连接到排放阀的出口，其出口连接到控制装置的出口。 主流路的双重关闭由主隔膜操作阀和自动阀提供，并且排气流路的双重关闭由入口泄放阀和压力调节阀提供。 主隔膜操作阀的修改提供了阶梯式开启。