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公开(公告)号：US4678406A
公开(公告)日：1987-07-07
申请号：US855676
申请日：1986-04-25
CPC分类号： F04C28/125
摘要： An axial flow helical screw compressor with a slide valve and slide stop mounted end to end in communication with the intermeshing rotors has means for changing the volume ratio during operation by stepwise movement of the slide stop and for changing the capacity during operation in infinitely variable fashion, both in response to system operating conditions. In the event of interference between the movements of the slide stop and slide valve, the components are designed so that the movements of the slide stop overpowers that of the slide valve.
摘要翻译： 具有滑动阀和滑动止动件的轴向流螺旋式螺杆压缩机以与啮合转子连通的方式安装在一起，具有用于通过滑动止动件的逐步移动来改变操作期间的体积比并且以无限可变的方式改变操作期间的容量的装置 ，都是响应系统运行条件。 在滑块和滑阀的运动之间发生干涉的情况下，部件被设计成使得滑动止动件的运动超过滑阀的运动。
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公开(公告)号：US4465446A
公开(公告)日：1984-08-14
申请号：US493484
申请日：1983-05-11
申请人： Paul Nemit, Jr. , Joseph W. Pillis
发明人： Paul Nemit, Jr. , Joseph W. Pillis
CPC分类号： F16C19/54 , F01C21/02 , F01C21/102 , F04C29/0021 , F16C2360/43
摘要： A radial and thrust bearing mounting particularly adapted for a helical screw type compressor, is provided in which the radial load is isolated from the thrust load to prevent the thrust bearing from carrying any substantial radial load, and in which adjustment of the axial discharge end clearance between the faces of the rotors and the discharge end of the housing cover is provided.
摘要翻译： 提供一种特别适用于螺旋式压缩机的径向和推力轴承安装件，其中径向载荷与推力载荷隔离，以防止止推轴承承受任何显着的径向载荷，并且其中调节轴向排出端隙 提供转子的表面和壳体盖的排出端之间。
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公开(公告)号：US08287248B2
公开(公告)日：2012-10-16
申请号：US12646765
申请日：2009-12-23
CPC分类号： F04C18/16 , F04C28/125 , F04C2270/58
摘要： A system is provided for maintaining the position of a valve in a compressor. The valve includes a valve body connected to a piston in a cylinder by a shaft. The valve body is positioned in the discharge outlet of the compressor based on the location of the piston in the cylinder. The system maintains the position of the valve body in response to a movement of the piston by permitting fluid to flow from a fluid source through the piston and into a chamber of the cylinder to urge the piston back to its initial position in the cylinder.
摘要翻译： 提供一种用于维持压缩机中阀的位置的系统。 阀包括通过轴连接到气缸中的活塞的阀体。 阀体基于活塞在气缸中的位置而位于压缩机的排出口中。 系统通过允许流体从流体源流过活塞并流入气缸的腔室来维持阀体的位置以响应于活塞的运动，以将活塞推回到其在气缸中的初始位置。
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4.发明授权Method of coding the oil in screw compressors equipped with automatic variable volume ratio 失效螺杆式压缩机油配备自动可变容积比的方法
公开(公告)号：US4553911A
公开(公告)日：1985-11-19
申请号：US701592
申请日：1985-02-14
申请人： Joseph W. Pillis
发明人： Joseph W. Pillis
CPC分类号： F04C28/125 , F04C29/042
摘要： A method of cooling the oil in screw compressors equipped with automatic variable volume ratio by automatically relocating the proper ports for the injection of liquid refrigerant into the interlobe volume of the compressor in response to the instantaneous internal volume ratio so that the refrigerant injection is done at an optimum time to insure efficient use of the refrigerant.
摘要翻译： 一种通过根据瞬时内部体积比自动地将适当的端口重新定位用于将液体制冷剂注入到压缩机的叶间体积中的冷却剂冷却方法，从而使制冷剂注入在 是确保有效利用制冷剂的最佳时间。
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公开(公告)号：US20110289951A1
公开(公告)日：2011-12-01
申请号：US13117216
申请日：2011-05-27
CPC分类号： F28B1/06 , F24F5/0035 , F25B7/00 , F28B1/02 , F28B9/06 , F28B11/00 , F28C1/00 , F28C1/14 , F28C2001/006 , F28D7/103 , F28D15/00 , F28D15/025 , F28D15/0266 , F28D21/0001 , F28F19/006 , F28F27/003 , F28F27/02 , Y10T29/49359
摘要： In one embodiment, a cooling system may include a thermosyphon cooler that cools a cooling fluid through dry cooling and a cooling tower that cools a cooling fluid through evaporative cooling. The thermosyphon cooler may use natural convection to circulate a refrigerant between a shell and tube evaporator and an air cooled condenser. The thermosyphon cooler may be located in the cooling system upstream of, and in series with, the cooling tower, and may be operated when the thermosyphon cooler is more economically and/or resource efficient to operate than the cooling tower. According to certain embodiments, factors, such as the ambient temperature, the cost of electricity, and the cost of water, among others, may be used to determine whether to operate the thermosyphon cooler, the cooling tower, or both.
摘要翻译： 在一个实施例中，冷却系统可以包括通过干式冷却冷却冷却流体的热虹吸冷却器和通过蒸发冷却冷却冷却流体的冷却塔。 热虹吸管冷却器可以使用自然对流在壳管式蒸发器和空气冷却冷凝器之间循环制冷剂。 热虹吸管冷却器可以位于冷却系统的上游并与冷却塔串联，并且当热虹吸管冷却器比冷却塔更经济和/或更有效地运行时可以操作。 根据某些实施例，可以使用诸如环境温度，电力成本和水的成本等因素来确定是否操作热虹吸管冷却器，冷却塔或两者。
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6.发明授权Micro-processor control of a movable slide stop and a movable slide valve in a helical screw rotary compressor with an enconomizer inlet port 失效微型处理器控制可旋转滑动止动器和可旋转滑阀，螺旋式旋转式压缩机带有经济型进气口
公开(公告)号：US4609329A
公开(公告)日：1986-09-02
申请号：US720323
申请日：1985-04-05
申请人： Joseph W. Pillis , Hans C. Wile
发明人： Joseph W. Pillis , Hans C. Wile
IPC分类号： F04C18/16 , F01C1/16 , F04B49/06 , F04C20060101 , F04C28/12
CPC分类号： F04C28/125 , F04C18/16 , F04C2240/81
摘要： A variable volume ratio screw compressor has a side load inlet port for the injection of refrigerant vapor into the interlobe volume. In order to improve efficiency, overcompression and undercompression are avoided by varying the location of the radial discharge port to give the compressor an internal volume ratio matched to the pressure of the system in which the compressor operates. This is accomplished in the present application by locating a pressure sensing port no earlier than and preferably later in the compression than the side load injection port, but early enough in the compression that it will not communicate with the discharge port. The pressure that is sensed in the sensing port is used to predict the actual peak pressure in order that maximum efficiency may be obtained as a result of matching the internal volume ratio to the pressure ratio of the system.
摘要翻译： 可变体积比的螺杆式压缩机具有用于将制冷剂蒸汽注入到叶间体积中的侧向进料口。 为了提高效率，通过改变径向排放口的位置来避免过压缩和欠压，以使压缩机具有与压缩机运行的系统的压力匹配的内部体积比。 这在本申请中是通过将压力感测端口定位在压缩之前而不是比侧面负载喷射端口更早的压力传感端口，但是在压缩过程中足够早，其不会与排出口连通。 在感测端口中感测的压力用于预测实际峰值压力，以便通过将内部体积比与系统的压力比匹配来获得最大效率。
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7.发明授权Variable liquid refrigerant injection port locator for screw compressor equipped with automatic variable volume ratio 失效螺杆式压缩机可变液体制冷剂注入口定位器配备自动可变容积比
公开(公告)号：US4515540A
公开(公告)日：1985-05-07
申请号：US554477
申请日：1983-11-22
申请人： Joseph W. Pillis
发明人： Joseph W. Pillis
CPC分类号： F04C28/125 , F04C29/042
摘要： An automatic variable volume ratio screw compressor has a plurality of ports for the injection of liquid refrigerant into the interlobe volume. These ports communicate with the interlobe volume at different effective distances from the discharge port so that the injection of liquid refrigerant may be done at the latest possible time during compression for effective use of the refrigerant, and without risking exposure to the open discharge port.The selection of the port is done automatically in response to the instantaneous internal volume ratio.
摘要翻译： 自动可变体积比螺杆式压缩机具有用于将液体制冷剂注入到叶间体积中的多个端口。 这些端口与离开排出口不同有效距离处的叶间体积进行通信，使得在压缩期间可以在最后的可能时间内喷射液体制冷剂，以有效地使用制冷剂，并且不会暴露于敞开的排放口。 端口的选择是根据瞬时内部体积比自动完成的。
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公开(公告)号：US10451351B2
公开(公告)日：2019-10-22
申请号：US13117216
申请日：2011-05-27
IPC分类号： F25B7/00 , F28B1/06 , F28B9/06 , F28B11/00 , F28C1/00 , F28D15/00 , F28D15/02 , F28F19/00 , F28F27/00 , F28F27/02 , F28D21/00 , F24F5/00 , F28C1/14 , F28D7/10 , F28B1/02 , F28D7/00
摘要： In one embodiment, a cooling system may include a thermosyphon cooler that cools a cooling fluid through dry cooling and a cooling tower that cools a cooling fluid through evaporative cooling. The thermosyphon cooler may use natural convection to circulate a refrigerant between a shell and tube evaporator and an air cooled condenser. The thermosyphon cooler may be located in the cooling system upstream of, and in series with, the cooling tower, and may be operated when the thermosyphon cooler is more economically and/or resource efficient to operate than the cooling tower. According to certain embodiments, factors, such as the ambient temperature, the cost of electricity, and the cost of water, among others, may be used to determine whether to operate the thermosyphon cooler, the cooling tower, or both.
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公开(公告)号：US5134856A
公开(公告)日：1992-08-04
申请号：US703795
申请日：1991-05-21
CPC分类号： F25B1/047 , F04C29/02 , Y10S418/01
摘要： A pressurized supply of oil for lubrication and other purposes for a helical screw compressor is automatically and continuously maintained in an oil separator in the compressor discharge line by a check valve assembly which is controlled by the pressure differential between the compressor inlet and the condenser, a bypass around the valve's control element permitting equalization of pressure on its opposite sides to permit closing by a biasing element.
摘要翻译： 通过由压缩机入口和冷凝器之间的压差控制的止回阀组件，在压缩机排出管线中的油分离器中自动且连续地保持用于螺旋式螺杆式压缩机的用于润滑和其它目的的加压供油， 围绕阀的控制元件绕过，允许其相对侧上的压力均衡，以允许偏置元件关闭。
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