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    • 11. 发明公开
    • Electrically operated valve
    • ELEKTRISCHBETÄTIGTESVENTIL
    • EP2924373A1
    • 2015-09-30
    • EP15159149.2
    • 2015-03-16
    • Fujikoki Corporation
    • Harada, TakaoTabuchi, KensukeNobuki, Takenori
    • F25B41/06
    • F16K31/02F16K47/02F25B41/062F25B2341/061F25B2341/0653F25B2500/12Y02B30/72
    • The invention provides an electrically operated valve which can reduce an abnormal noise generated in the case that a fluid is flows in a first flowing direction and a second flowing direction, while suppressing a flow rate loss of a fluid with a simple structure. An electrically operated valve is provided with a valve main body (5) in which a valve chamber (7) is defined in an inner portion and a first opening (11a) and a second opening (12a) are formed in a side portion and a bottom portion, a valve seat member (8) which has an valve port (9) open to the valve chamber (7) and a valve seat (8a) and is provided in the second opening (12a) of the valve main body (5), a valve body (20) which is arranged in the valve chamber (7) so as to be movable up and down, and an elevation drive portion (50) which moves up and down the valve body (20) in relation to the valve seat (8a), and a porous body (4) constructed by a foam metal is arranged along a portion which is positioned in a side portion of the valve port on the inner wall surface of the valve main body (5).
    • 本发明提供一种电动阀,其可以在以简单的结构抑制流体的流量损失的同时,减少在流体沿第一流动方向和第二流动方向流动的情况下产生的异常噪声。 电动阀具有阀主体(5),阀体(7)限定在内部,第一开口(11a)和第二开口(12a)形成在侧部,并且 底部,具有与阀室(7)开口的阀口(9)的阀座构件(8)和阀座(8a),并且设置在阀主体(5)的第二开口(12a)中 ),阀体(20),其设置在所述阀室(7)中以能够上下移动;以及升降驱动部(50),其相对于所述阀体(20)上下移动 阀座(8a)和由泡沫金属构成的多孔体(4)沿位于阀主体(5)的内壁表面上的阀口的侧部的部分布置。
    • 15. 发明公开
    • Composite valve
    • 复合阀
    • EP2604951A2
    • 2013-06-19
    • EP12195188.3
    • 2012-12-03
    • Fujikoki Corporation
    • Arai, Yusuke
    • F25B41/06
    • F16K31/12F16K31/04F16K31/406F25B41/062F25B2341/065F25B2341/0671Y02B30/72Y10T137/7758
    • 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), a first valve body (15) and a second valve body (24) are arranged so as to be moved up and down in the same direction, and are away from each other only at a predetermined distance, and the composite valve is structured such that in the case that a lift amount of the 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 the 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),第一阀体(15)和第二阀体(24) 在相同方向上升和下降,并且仅在预定距离处彼此远离,并且复合阀构造成使得在用于小流量控制的第二阀体(24)的升程量为 等于或小于预定量(Tc)时,先导通道(19)由导阀体(20)关闭,并且第一阀口(13)由第一阀体(15)关闭,从而取出 小流量控制状态,其中根据第二阀体(24)的升程量来控制流量,以及 在第二阀体(24)的升程量超过预定量(Tc)的情况下,先导阀体(20)随着阀轴(25)的向上运动而向上移动,以便 打开先导通路19,由此成为第一阀体15打开第一阀口13的大流量控制状态。
    • 16. 发明公开
    • Heat pump type hot water supply outdoor apparatus
    • Vorrichtung mitwärmepumpenartigerHeißwasserversorgungfürdraußen
    • EP2527764A2
    • 2012-11-28
    • EP12180895.0
    • 2009-01-26
    • Mitsubishi Electric Corporation
    • Okada, KazukiUshijima, TakahiroTakahashi, Kengo
    • F25B13/00F25B40/00F25B49/02F25B1/10
    • F25B13/00F25B1/10F25B40/00F25B49/027F25B2341/0653F25B2341/066F25B2400/053F25B2400/054F25B2400/13F25B2400/16F25B2600/17F25B2600/21F25B2600/2509F25B2600/2513F25B2700/1931F25B2700/21174Y02B30/72
    • A heat pump type hot water supply outdoor apparatus, wherein a compressor (3), a water heat exchanger (2), a first expansion valve (6), a medium pressure receiver (5), a second expansion valve (7), and an air heat exchanger (1) are connected circularly, has an injection circuit (13), which is a bypass for a part of the refrigerant between the medium pressure receiver and the second pressure reduction unit, to inject the part of refrigerant into a compression chamber of the compressor, and has a third expansion valve (8) and an internal heat exchanger (9) for carrying out heat exchange between the refrigerant whose pressure is reduced by the third expansion valve and the refrigerant between the medium pressure receiver and the second expansion valve, a pressure detection sensor (12) for detecting a condensing pressure, and a controller (14) for starting an injection control by the third expansion valve at the time when the condensing pressure detected by the pressure sensor or the condensing temperature calculated from the condensing pressure becomes a first predetermined value or more and stopping the injection control at the time when the condensing pressure or the condensing temperature becomes a second predetermined value which is smaller than the first predetermined value, or less. With this arrangement, an appropriate injection control can be realized and a high hot water supply/heating capability operation can be carried out.
    • 一种热泵式热水供给室外机,其中,压缩机(3),水热交换器(2),第一膨胀阀(6),中压接收器(5),第二膨胀阀(7)和 空气热交换器(1)圆形连接,具有注入回路(13),其是介于中压容器和第二减压单元之间的一部分制冷剂的旁路,以将制冷剂的一部分注入压缩 并且具有第三膨胀阀(8)和内部热交换器(9),所述第三膨胀阀(8)和内部热交换器(9)用于通过第三膨胀阀减压的制冷剂与中压接收器与第二膨胀阀之间的制冷剂进行热交换 膨胀阀,用于检测冷凝压力的压力检测传感器(12);以及控制器(14),用于在由压力传感器或锥体检测到的冷凝压力时由第三膨胀阀开始喷射控制 从冷凝压力计算出的温度成为第一预定值以上,并且在冷凝压力或冷凝温度成为比第一规定值小的第二规定值时停止喷射控制。 通过这种布置,可以实现适当的喷射控制,并且可以执行高热水供应/加热能力操作。
    • 18. 发明公开
    • Refrigeration apparatus
    • Kältegerät
    • EP2354727A1
    • 2011-08-10
    • EP11164267.4
    • 2008-11-12
    • DAIKIN INDUSTRIES, LIMITED
    • Kawakatsu, NoriyasuTakaoka, HisaakiKuriyama, HideakiTanaka, Shigeto
    • F25B41/06
    • F25B41/062F25B2341/0653F25B2400/19F25B2500/26F25B2600/01F25B2600/2513F25B2700/21172F25B2700/21174F25B2700/21175Y02B30/72
    • A refrigeration apparatus (14) includes: a valve control means (33) configured to control the opening of an expansion valve (13); and opening degree detection means (32, 34) configured to perform, after a pump-down operation in which a compressor (11) is driven with the expansion valve (13) closed, an opening degree detection operation of detecting an opening degree that is an opening command value for use in changing the expansion valve (13) from a closed state to an open state, by determining whether the expansion valve (13) is open based on a change in state of low-pressure refrigerant between the expansion valve (13) and the suction side of the compressor (11), while gradually increasing the opening command value output to the expansion valve (13) with the compressor (11) deactivated. The valve control means (33) controls the expansion valve (13) using the opening degree detected in the opening degree detection operation.
    • 制冷装置(14)包括:阀控制装置(33),其构造成控制膨胀阀(13)的开度; 以及开度检测单元,其构成为在由所述膨胀阀(13)关闭而驱动所述压缩机(11)的下降运转之后进行开度检测动作,所述开度检测单元检测作为 用于根据膨胀阀(13)之间的低压制冷剂的状态变化来确定膨胀阀(13)是否打开,用于将膨胀阀(13)从关闭状态变为打开状态的开启指令值, 13)和压缩机(11)的吸入侧,同时使压缩机(11)停用,逐渐增加输出到膨胀阀(13)的打开指令值。 阀控制装置(33)使用在开度检测操作中检测到​​的开度来控制膨胀阀(13)。
    • 19. 发明公开
    • Electronic expansion valve
    • Elektronisches Expansventventil
    • EP2322882A2
    • 2011-05-18
    • EP10184249.0
    • 2010-09-30
    • Zhejiang Sanhua Co. Ltd.
    • Zhan, CaiyiYuan, ZeWei, Xianrang
    • F25B41/06
    • F25B41/062F25B2341/065Y02B30/72
    • The present invention provides an electronic expansion valve, comprising a leading screw (4), a valve needle (6) and a valve needle sleeve (6). It further comprises: a washer (7) provided in an annular groove, which is provided at the lower end of the leading screw (4) in the circumferential direction, and a thickness of the washer (7) is less than a width of the annular groove; the valve needle sleeve (6) abuts against the upper surface of the washer (7) and is fixedly connected with the valve needle (6); and a spring (8) is provided between the washer (7) and the valve needle (6). By arranging the washer (7) in the annular groove provided at the lower end of the leading screw (4) in the circumferential direction, with the thickness of the washer (7) being less than the width of the annular groove, and by arranging the spring (8) between the valve needle (6) and the washer (7), the washer (7) is enabled to rotate around the annular groove in the circumferential direction and move up and down in the annular groove, improving the reliability of the electronic expansion valve.
    • 本发明提供了一种电子膨胀阀,其包括前导螺杆(4),阀针(6)和阀针套(6)。 其还包括:设置在环形槽中的垫圈(7),其设置在所述引导螺杆(4)的沿圆周方向的下端,并且所述垫圈(7)的厚度小于 环形槽 阀针套筒(6)与垫圈(7)的上表面抵接,并与阀针(6)固定连接。 并且在所述垫圈(7)和所述阀针(6)之间设置有弹簧(8)。 通过在垫圈(7)的厚度小于环形槽的宽度的同时将垫圈(7)布置在设置在引导螺杆(4)的下端的环形槽中,并且通过布置 阀针(6)和垫圈(7)之间的弹簧(8),垫圈(7)能够在圆周方向上围绕环形槽旋转并且在环形槽中上下移动,从而提高了可靠性 电子膨胀阀。
    • 20. 发明公开
    • Electronic expansion valve
    • Elektronisches Expansventventil
    • EP2287548A2
    • 2011-02-23
    • EP10167923.1
    • 2010-06-30
    • Zhejiang Sanhua Co. Ltd.
    • Lv, MingZhan, Caiyi
    • F25B41/06
    • F25B41/062F16K31/047F25B2341/065Y02B30/72
    • Embodiments of the invention provide an electronic expansion valve, including a magnetic rotor (3) and a screw rod (4), and further including an output shaft (5). The magnetic rotor (3) is surroundingly provided on the output shaft (5), and the output shaft (5) is slidably connected to the screw rod (4) in an axial direction and drivably connected to the screw rod (4) in a circumferential direction. Since the output shaft (5) is slidably connected to the screw rod (4) in an axial direction and drivably connected to the screw rod (4) in a circumferential direction, the magnetic rotor (3) does not subject to an axial force transmitted by the screw rod (4) and rotates flexibly.
    • 本发明的实施例提供一种电子膨胀阀,包括磁转子(3)和螺杆(4),并且还包括输出轴(5)。 磁转子(3)围绕设置在输出轴(5)上,输出轴(5)沿轴向方向可滑动地连接到螺杆(4)上,并以可驱动方式连接到螺杆(4)上 圆周方向。 由于输出轴(5)在轴向上可滑动地连接到螺杆(4),并且在圆周方向上可驱动地连接到螺杆(4),所以磁转子(3)不受轴向力的传递 通过螺杆(4)旋转并且旋转。