Injection valve for a refrigeration system
    71.
    发明授权
    Injection valve for a refrigeration system 失效
    用于制冷系统的注射阀

    公开(公告)号:US5148684A

    公开(公告)日:1992-09-22

    申请号:US684304

    申请日:1991-04-12

    摘要: This control valve (10) can be used for reducing the temperature of the discharge gas in the compressor (100) of a refrigeration system. The valve (10) includes a body (12) having inlet and outlet ports (20, 22), respectively receiving refrigerant from one part of the system and injecting it to a point upstream of compressor discharge, a valve seat (32), disposed between said inlet and outlet ports, and a valve member (34) controlling flow through the valve seat. The valve (10) includes a spring assembly (40) mounted in the body (12) and applying a force to the valve member (34) tending to urge the valve member into a closed position and an actuator assembly (50) modulating the valve member (34) in response to a change of temperature in the compressor discharge line. The actuator assembly (50) includes an actuator (52) movable within the body (12), a connector (70) attached to the body, a bellows (60) connected between the actuator (52) and the connector (70). A temperature responsive sensor (108) communicates with the bellows (60) to control pressure in the bellows and pushrods (70) interconnect the actuator (52) and the valve member (34) to modulate the valve member in response to temperature change in the sensor (108).

    摘要翻译: 该控制阀(10)可用于降低制冷系统的压缩机(100)中的排出气体的温度。 阀(10)包括具有入口和出口(20,22)的主体(12),其分别从系统的一部分接收制冷剂并将其注入到压缩机排放口上游的点;阀座(32) 在所述入口和出口之间,以及阀构件(34),其控制通过所述阀座的流动。 阀(10)包括安装在主体(12)中的弹簧组件(40),并向阀构件施加力,倾向于将阀构件推动到关闭位置;以及致动器组件(50) (34)响应于压缩机排放管线中的温度变化。 致动器组件(50)包括可在主体(12)内移动的致动器(52),连接到主体的连接器(70),连接在致动器(52)和连接器(70)之间的波纹管(60)。 温度响应传感器(108)与波纹管(60)连通以控制波纹管中的压力,并且推杆(70)将致动器(52)和阀构件(34)相互连接,以响应于温度变化来调节阀构件 传感器(108)。

    Air compressors
    73.
    发明授权
    Air compressors 失效
    空气压缩机

    公开(公告)号:US3704079A

    公开(公告)日:1972-11-28

    申请号:US3704079D

    申请日:1970-09-08

    摘要: An air compressor of the cylinder and reciprocating piston type comprises an inlet port formed in the wall of the cylinder so as to be uncovered by the piston near bottom dead center, and a spring-loaded annular discharge valve co-acting with two concentric seatings to close the upper end of the cylinder but which is engaged and lifted slightly by the piston at top dead center, the inner seating being formed on a valve guide embodying water injector means.

    摘要翻译: 气缸和往复活塞式的空气压缩机包括形成在气缸的壁中的入口端口,以便在靠近下止点处被活塞覆盖,以及弹簧加载的环形排出阀,其与两个同心位置共同作用 关闭气缸的上端,但是在上止点处由活塞略微接合和提升,内座椅形成在体现水喷射器装置的阀导向件上。