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    • 2. 发明公开
    • Composite valve
    • EP2604952A3
    • 2014-03-19
    • EP12195189.1
    • 2012-12-03
    • Fujikoki Corporation
    • Kannoo, TakeshiArai, Yusuke
    • F25B41/06F16K31/04
    • F16K31/04F16K31/363F16K31/406F25B41/062F25B2341/065F25B2341/0671Y02B30/72Y10T137/7761Y10T137/7764
    • The invention provides a composite valve which can achieve both an improvement of a flow rate control precision in a small flow rate region and an increase of a controllable flow rate (a reduction of a pressure loss), can securely prevent a second valve body from being undesirably opened, and can achieve a cost reduction, a downsizing, a reduction of an electric power consumption and the like. The composite valve is provided with a communication path (29) which communicates a first valve chamber (11) with a second valve chamber (21), a second valve port (23) which communicates the second valve chamber (21) with an outflow port (6), and a pilot passage (19) which communicates a back pressure chamber (16) with the outflow port (6), and is structured such that in the case that a lift amount of a second valve body (24) for a small flow rate control is equal to or less than a predetermined amount (Tc), the pilot passage (19) is closed by a pilot valve body (20), and a first valve port (13) is closed by a first valve body (15), thereby taking a small flow rate control state in which a flow rate is controlled in correspondence to the lift amount of the second valve body (24), and in the case that the lift amount of the second valve body (24) goes beyond the predetermined amount (Tc), the pilot valve body (20) is moved up in conjunction with the upward movement of a valve shaft (25) so as to open the pilot passage (19), thereby taking a large flow rate control state in which the first valve body (15) opens the first valve port (13) on the basis of this.
    • 4. 发明公开
    • Composite valve
    • 复合阀
    • EP2604952A2
    • 2013-06-19
    • EP12195189.1
    • 2012-12-03
    • Fujikoki Corporation
    • Kannoo, TakeshiArai, Yusuke
    • F25B41/06
    • F16K31/04F16K31/363F16K31/406F25B41/062F25B2341/065F25B2341/0671Y02B30/72Y10T137/7761Y10T137/7764
    • The invention provides a composite valve which can achieve both an improvement of a flow rate control precision in a small flow rate region and an increase of a controllable flow rate (a reduction of a pressure loss), can securely prevent a second valve body from being undesirably opened, and can achieve a cost reduction, a downsizing, a reduction of an electric power consumption and the like. The composite valve is provided with a communication path (29) which communicates a first valve chamber (11) with a second valve chamber (21), a second valve port (23) which communicates the second valve chamber (21) with an outflow port (6), and a pilot passage (19) which communicates a back pressure chamber (16) with the outflow port (6), and is structured such that in the case that a lift amount of a second valve body (24) for a small flow rate control is equal to or less than a predetermined amount (Tc), the pilot passage (19) is closed by a pilot valve body (20), and a first valve port (13) is closed by a first valve body (15), thereby taking a small flow rate control state in which a flow rate is controlled in correspondence to the lift amount of the second valve body (24), and in the case that the lift amount of the second valve body (24) goes beyond the predetermined amount (Tc), the pilot valve body (20) is moved up in conjunction with the upward movement of a valve shaft (25) so as to open the pilot passage (19), thereby taking a large flow rate control state in which the first valve body (15) opens the first valve port (13) on the basis of this.
    • 本发明提供一种复合阀,其能够兼顾小流量区域的流量控制精度的提高和可控流量的增加(压力损失的降低),能够可靠地防止第二阀体 不期望地打开,并且可以实现成本降低,小型化和电力消耗的降低等。 复合阀设置有使第一阀室(11)与第二阀室(21)连通的连通路径(29),将第二阀室(21)与流出口连通的第二阀口(23) (6);以及使背压室(16)与流出口(6)连通的先导通路(19),在第二阀体(24)的升程量为 小流量控制为规定量(Tc)以下时,先导阀体(20)关闭先导通路(19),第一阀口(13)被第一阀体 从而取得与第二阀体(24)的升程量相对应地控制流量的小流量控制状态,并且在第二阀体(24)的升程量变为 超过预定量(Tc)时,先导阀体(20)随着阀轴(25)的向上运动而向上移动, 从而打开先导通路19,由此在第一阀体15打开第一阀口13的状态下成为大流量控制状态。
    • 5. 发明公开
    • Pitot tube with increased particle separation efficiency
    • 皮特罗·罗尔·米尔·埃尔霍特(Patot-Rohr miterhöhterPartikeltrennungseffizienz)
    • EP2482161A2
    • 2012-08-01
    • EP11195843.5
    • 2011-12-28
    • Hamilton Sundstrand Corporation
    • Kamp, JoshRoberg, Kevin Arthur
    • G05D16/20
    • G05D16/2093B64D13/02F16K1/221F16K31/1635F16K37/005Y10T29/49826Y10T137/7764
    • A pneumatically actuated valve (44) includes a valve body (46), a pneumatic actuator (48), and a pitot tube (72). The valve body includes a valve disc (52) positioned in a valve housing (50) that defines a flow passage (56) with a flow passage diameter (D). The pneumatic actuator (48) rotates the valve disc (52) in the valve housing (50). The pitot tube (72) is connected to the pneumatic actuator (48) and has a tip (78) extending into the flow passage (56). The tip is spaced apart from the valve housing (50) by at least 1/20 of the flow passage diameter (D). The tip (78) is substantially free of downstream obstructions for a distance equal to at least 1/2 of the flow passage diameter (D) when the valve (44) is in an open position.
    • 气动致动阀(44)包括阀体(46),气动致动器(48)和皮托管(72)。 阀体包括定位在具有流动通道直径(D)的流动通道(56)的阀壳体(50)中的阀盘(52)。 气动致动器(48)使阀壳(50)中的阀盘(52)旋转。 皮托管(72)连接到气动致动器(48)并且具有延伸到流动通道(56)中的尖端(78)。 尖端与阀壳体(50)间隔开流动通道直径(D)的至少1/20。 当阀(44)处于打开位置时,尖端(78)基本上没有下游障碍物等于流路直径(D)的至少1/2的距离。
    • 6. 发明公开
    • Stepper motor gas valve and method of control
    • Gasventil mit Schrittmotor
    • EP2146145A2
    • 2010-01-20
    • EP09165412.9
    • 2009-07-14
    • Emerson Electric Co.
    • Santinanavat, Mike C.Butler, William P.Atri, JagdishJensen, Ryan D.
    • F23N1/00
    • F23N1/002F16K31/128F16K31/402F16K31/42G05D16/202Y10T137/7761Y10T137/7764
    • A stepper-motor gas valve control is disclosed that includes a main diaphragm in a chamber that controllably displaces a valve relative to an opening in response to changes in pressure, to adjust fuel flow through the valve. A servo-regulator diaphragm is provided to regulate flow to the main diaphragm, to thereby control the rate of fuel flow. A stepper motor is configured to move in a stepwise manner to displace the servo-regulator diaphragm, to control fluid flow to the main diaphragm. A controller mounted on the stepper-motor regulated gas valve control receives and converts an input control signal from a heating system to a reference value between 0 and 5 volts, and selects a corresponding motor step value. The control responsively moves the stepper-motor in a step wise manner to displace the servo-regulator diaphragm and thereby regulates the rate of fuel flow through the valve.
    • 公开了一种步进电动机气门控制装置,其包括在腔室中的主隔膜,其响应于压力变化可控制地相对于开口移动阀门,以调节通过阀门的燃料流量。 提供伺服调节器膜片以调节流向主隔膜的流量,从而控制燃料流量。 步进电机被配置为逐步移动以移动伺服调节器膜片,以控制流向主隔膜的流体。 安装在步进电动机调节气体控制阀控制器上的控制器接收并将来自加热系统的输入控制信号转换为0至5伏特之间的参考值,并选择相应的电动机步进值。 控制器以逐步方式响应地移动步进电机以移动伺服调节器隔膜,从而调节通过阀门的燃料流量的速率。
    • 9. 发明公开
    • Druckbegrenzungsventil
    • EP1450082A2
    • 2004-08-25
    • EP04002128.9
    • 2004-01-31
    • Hammelmann Maschinenfabrik GmbH
    • Stoffers, Christian
    • F16K1/38
    • G05D16/166F16K1/385G05D16/10Y10T137/7764
    • Ein Druckbegrenzungsventil für ein unter Systemdruck stehendes fluides Medium, mit einem Ventilgehäuse (1), in dem ein Eingangskanal (3) und ein damit in Verbindung stehender Ausgangskanal (4) für das Medium vorgesehen sind, wobei der Mediumdurchfluß durch einen axial bewegbaren, mit einem Kraftspeicher (2) in Wirkverbindung stehenden Ventilkörper (5) im Zusammenspiel mit einem Ventilsitz (6) regelbar ist, ist so ausgebildet, daß ein sich an den Ventilkörper (5) koaxial anschließender Kolben (7) mantelseitig einen Drosselspalt (8a) begrenzt, der mit dem Eingangskanal (3) in Verbindung steht und über den Kraftspeicher (2) direkt oder indirekt mit Druck beaufschlagbar ist.
    • 在系统压力下用于流体介质的限压阀包括设置有入口通道(3)和出口通道(4)的阀壳体(1)。 中等流量由与力储存器(2)相互作用并与阀座(6)配合的可轴向移动的阀体(5)控制。 与阀体同轴连接的活塞(7)在壳体侧限定节气门间隙,其连接到入口通道,并通过力蓄能器直接或间接加载压力。 优选特征:活塞通过固定的密封套(8)围绕在外壳侧。 活塞和密封套由耐磨材料制成,优选为硬质金属。
    • 10. 发明公开
    • A VACUUM REGULATOR FOR MAINTAINING A SUBSTANTIALLY CONSTANT VACUUM IN A VACUUM SYSTEM
    • 爱因斯坦VAKUUMRYSLER ZU KONSTANTHALTUNG EINES VAKUUMS IN EINEM VAKUUMSYSTEM
    • EP1315412A1
    • 2003-06-04
    • EP01965795.6
    • 2001-09-06
    • DeLaval Holding AB
    • IDENSJÖ, Henrik
    • A01J5/04G05D16/00
    • A01J5/048G05D16/0638G05D16/163Y10S137/907Y10T137/7762Y10T137/7764Y10T137/7835
    • The invention relates to a vacuum regulator (1) for maintaining a substantially constant vacuum in a vacuum system (2). The vacuum regulator (1) comprises a main valve arranged to control a supply of air to the vacuum system (2). The main valve comprises a valve seat (3) defining an passage (4) arranged to lead air to the vacuum system (2) and a valve body (5) moveably arranged in a direction between a closed position and a maximally open position in order to regulate the size of a minimum flow area (18) between the valve seat (3) and the valve body (5). A force (19) caused by the vacuum acts on the valve body (5) in a direction towards the closed position. The valve seat (3) and the valve body (5) have such design, that the value of said force (19), in a continuous way, increases with the degree of opening of the valve body (5).
    • 本发明涉及一种用于在真空系统(2)中保持基本上恒定的真空的真空调节器(1)。 真空调节器(1)包括主阀,其被布置成控制向真空系统(2)供应空气。 主阀包括阀座(3),其限定了布置成将空气引导到真空系统(2)的通道(4)和可沿顺序地在关闭位置和最大打开位置之间的方向上顺序布置的阀体(5) 以调节阀座(3)和阀体(5)之间的最小流动面积(18)的尺寸。 由真空引起的力(19)沿着朝向关闭位置的方向作用在阀体(5)上。 阀座(3)和阀体(5)具有连续方式的力(19)的值随着阀体(5)的开度而增加的设计。