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    Multiple compressor system
    1.
    发明授权
    Multiple compressor system 失效
    多压缩机系统

    公开(公告)号：US4236876A

    公开(公告)日：1980-12-02

    申请号：US61974

    申请日：1979-07-30

    申请人： Bruce A. Fraser ,  Donald Yannascoli

    发明人： Bruce A. Fraser ,  Donald Yannascoli

    IPC分类号： F04B39/02 ,  F04B39/12 ,  F04B41/06 ,  F04B23/04

    CPC分类号： F04B39/0246 ,  F04B41/06

    摘要： A multi-compressor system comprising first and second stage motor-compressor units, a low pressure line for transmitting vapor from a source thereof to the first stage unit, an intermediate pressure line for transmitting vapor between the first and second stage units, a high pressure line for transmitting vapor from the second stage unit, and a bypass line for transmitting vapor from the low pressure line to the intermediate pressure line to selectively bypass the first stage unit. The first stage unit includes a first supply of lubricant, a first compressor, and a first lubricant overflow passage for passing overflow lubricant from the first supply thereof into the first compressor. The second stage unit includes a second supply of lubricant, a second compressor, and a second lubricant overflow passage for passing overflow lubricant from the second supply thereof into the second compressor. The low pressure line includes a first section, and a second section extending substantially at a right angle to the first section. The bypass line includes a first bypass section connected to the first section of the low pressure line and extending substantially collinear therewith, and a check valve for preventing vapor flow from the intermediate pressure line to the low pressure line via the bypass line.

    摘要翻译： 一种包括第一和第二级电动机 - 压缩机单元的多压缩机系统，用于将蒸气从其源极传送到第一级单元的低压管线，用于在第一和第二级单元之间传输蒸汽的中间压力管线， 用于从第二级单元传输蒸气的管线，以及用于将蒸汽从低压管线传送到中间压力管线以选择性地绕过第一级单元的旁路管线。 第一级单元包括第一供应润滑剂，第一压缩机和第一润滑剂溢流通道，用于将溢流润滑剂从第一供应通道送入第一压缩机。 第二级单元包括第二供应润滑剂，第二压缩机和第二润滑剂溢流通道，用于将溢流润滑剂从第二供应源传递到第二压缩机。 低压线包括第一部分和与第一部分基本上成直角延伸的第二部分。 旁通管路包括连接到低压管线的第一部分并且基本上与其共同延伸的第一旁通部分，以及用于防止蒸汽从中间压力管线经由旁路管线流到低压管线的止回阀。

    Apparatus for modulating the capacity of a reciprocating compressor
    2.
    发明授权
    Apparatus for modulating the capacity of a reciprocating compressor 失效
    用于调节往复式压缩机的容量的装置

    公开(公告)号：US4389168A

    公开(公告)日：1983-06-21

    申请号：US248388

    申请日：1981-03-27

    申请人： Donald Yannascoli ,  Bruce A. Fraser

    发明人： Donald Yannascoli ,  Bruce A. Fraser

    IPC分类号： F04B49/00 ,  F04B39/10 ,  F04B49/24 ,  F25B1/00

    CPC分类号： F04B49/243

    摘要： Apparatus for modulating the capacity of a reciprocating compressor having a cylinder chamber and a valve assembly extending over the cylinder chamber, defining fluid inlet and outlet paths, and including a suction valve for regulating vapor flow through the inlet path. The capacity modulating apparatus comprises a lever, a fulcrum, and control means. The lever extends through the fluid inlet path and above the suction valve, and has a first end located outside the valve assembly and a second end engaging the suction valve. Both the fulcrum and the control means engage the lever, and the control means is provided for applying a variable force to the lever wherein the lever transmits the force to the suction valve to urge the suction valve to an open position.

    摘要翻译： 用于调节具有气缸室和在气缸室上延伸的阀组件的往复式压缩机的容量的装置，限定流体入口和出口路径，并且包括用于调节通过入口路径的蒸气流的吸入阀。 容量调节装置包括杠杆，支点和控制装置。 杠杆延伸穿过流体入口路径并且在吸入阀上方，并且具有位于阀组件外部的第一端和与吸入阀接合的第二端。 支点和控制装置都与杆接合，并且控制装置用于向杠杆施加可变的力，其中杠杆将力传递到吸入阀以将吸入阀推动到打开位置。

    Oil Equalization Configuration for Multiple Compressor Systems Containing Three or More Compressors
    3.
    发明申请
    Oil Equalization Configuration for Multiple Compressor Systems Containing Three or More Compressors 审中-公开
    含三台以上压缩机的多台压缩机系统的均油配置

    公开(公告)号：US20140037484A1

    公开(公告)日：2014-02-06

    申请号：US13950488

    申请日：2013-07-25

    申请人： Bruce A. Fraser ,  James William Bush

    发明人： Bruce A. Fraser ,  James William Bush

    IPC分类号： F04C29/02

    CPC分类号： F04C29/028 ,  F04C18/0215 ,  F04C23/001 ,  F04C23/008 ,  F04C28/02 ,  F04C29/021 ,  F04C2270/24

    摘要： A method of operating a refrigeration system having at least three compressors, in which each compressor has an oil sump with oil at an oil level. The method includes separately connecting the oil sumps of the at least three compressors. Each separate connection allows oil flow only between the oil sumps of two of said compressors thereby preventing bypass flow. The method further includes flowing oil between oil sumps of the at least three compressors and along the separate connections to tend to equalize the oil levels among the oil sumps of the at least three compressors.

    摘要翻译： 一种操作具有至少三个压缩机的制冷系统的方法，其中每个压缩机具有油位在油位上的油底壳。 该方法包括分开连接至少三个压缩机的油底壳。 每个单独的连接允许仅在两个所述压缩机的油池之间进行油流，从而防止旁路流动。 该方法还包括在至少三个压缩机的油池之间并沿着单独的连接件流动油以倾向于使至少三个压缩机的油池中的油位相等。

    Compressor terminal plate
    4.
    发明授权
    Compressor terminal plate 有权
    压缩机端子板

    公开(公告)号：US08317494B2

    公开(公告)日：2012-11-27

    申请号：US11814994

    申请日：2005-02-07

    申请人： Peter J. Pileski ,  Bruce A. Fraser

    发明人： Peter J. Pileski ,  Bruce A. Fraser

    IPC分类号： F04B17/03 ,  H02K11/00

    CPC分类号： F01C21/10 ,  F04C18/086 ,  F04C18/16 ,  F04C23/008 ,  F04C29/0085 ,  F04C29/045 ,  F04C2240/803 ,  Y10T29/49242

    摘要： A compressor (20) has a housing (22) having first (52) and second (48) members. A motor (24) within the housing (22) is coupled to one or more working elements (26, 28) to drive the one or more working elements (26, 28) to compress a fluid. A number of electrical terminals (104) are each mounted in an associated aperture (132) in the second housing member (48) and electrically connected to the motor (24).

    摘要翻译： 压缩机（20）具有具有第一（52）和第二（48）构件的壳体（22）。 壳体（22）内的马达（24）联接到一个或多个工作元件（26,28）以驱动一个或多个工作元件（26,28）以压缩流体。 多个电端子（104）分别安装在第二壳体构件（48）中的关联的孔（132）中并电连接到电动机（24）。

    SCREW COMPRESSOR PULSATION DAMPER
    5.
    发明申请
    SCREW COMPRESSOR PULSATION DAMPER 审中-公开
    螺旋压缩机脉冲阻尼器

    公开(公告)号：US20100209280A1

    公开(公告)日：2010-08-19

    申请号：US12678401

    申请日：2007-10-01

    申请人： Paul J. Flannigan ,  Bruce A. Fraser

    发明人： Paul J. Flannigan ,  Bruce A. Fraser

    IPC分类号： F04C18/16

    CPC分类号： F04C18/16 ,  F04C28/12 ,  F04C29/0035 ,  F04C29/06 ,  F04C2270/12 ,  F04C2270/13 ,  F04C2270/14

    摘要： A screw compressor (10) comprises a housing (12, 14, 16), a slide valve assembly (23) and a pulsation damper. The housing (12, 14, 16) receives a supply of working matter from a pair of intermeshing screw rotors (18, 20), and comprises a slide recess (51), a pressure pocket (32), and a piston cylinder (54). The slide valve assembly (23) regulates the capacity of the screw compressor (10), and comprises a slide valve (36) axially movable within the slide recess (51) and the pressure pocket (32), a piston head (40) axially movable within the piston cylinder (54), and a piston shaft (38) connecting the slide valve (36) with the piston head (40). The pulsation damper comprises a flange (58) for separating the pressure pocket (32) from the piston cylinder (54), a bore (60) for receiving the piston rod (38), and a damping channel (46A) extending through the flange (58).

    摘要翻译： 螺杆式压缩机（10）包括壳体（12,14,16），滑阀组件（23）和脉动阻尼器。 壳体（12,14,16）从一对相互啮合的螺旋转子（18,20）接收工作物质的供应，并包括滑动凹槽（51），压力腔（32）和活塞缸（54） ）。 滑阀组件（23）调节螺杆式压缩机（10）的容量，并且包括在滑动凹部（51）和压力槽（32）内可轴向移动的滑阀（36），轴向 在所述活塞缸（54）内可移动的活塞轴（38）和将所述滑阀（36）与所述活塞头（40）连接的活塞轴（38）。 脉动阻尼器包括用于将压力袋（32）与活塞缸（54）分离的凸缘（58），用于容纳活塞杆（38）的孔（60）和延伸穿过凸缘的阻尼通道（46A） （58）。

    SCREW COMPRESSOR WITH INTEGRAL BEARING COVER AND DISCHARGE PLENUM DIVIDER
    6.
    发明申请
    SCREW COMPRESSOR WITH INTEGRAL BEARING COVER AND DISCHARGE PLENUM DIVIDER 审中-公开
    螺旋压缩机具有整体轴承盖和放电分路器

    公开(公告)号：US20100135839A1

    公开(公告)日：2010-06-03

    申请号：US12444614

    申请日：2006-12-26

    申请人： Bruce A. Fraser

    发明人： Bruce A. Fraser

    IPC分类号： F04C18/16

    CPC分类号： F04C18/165 ,  F04C18/086 ,  F04C29/0035 ,  F04C29/065 ,  F04C29/068 ,  F04C2240/30 ,  F04C2240/50

    摘要： A three rotor screw compressor is provided with a bearing cover, and an integral discharge case having a divider wall formed integrally with the bearing cover. The bearing cover closes bearing chambers for each of three rotor shafts, and the divider wall divides a plenum into two distinct chambers. By providing the divider wall, noise and efficiency losses from intermixing of two discharge flows from two separate compression chambers is eliminated. By forming a divider wall integrally with the bearing cover, leakage which has existed in the prior art is eliminated.

    摘要翻译： 三转子螺杆式压缩机设置有轴承盖，整体排出壳体具有与轴承盖一体形成的分隔壁。 轴承盖关闭三个转子轴中的每一个的轴承室，分隔壁将集气室分成两个不同的腔室。 通过提供分隔壁，消除了来自两个分离的压缩室的两个排放流的混合的噪声和效率损失。 通过与轴承盖一体形成分隔壁，消除了现有技术中存在的泄漏。

    Oil distribution in multiple-compressor systems utilizing variable speed
    9.
    发明授权
    Oil distribution in multiple-compressor systems utilizing variable speed 有权

    公开(公告)号：US10760831B2

    公开(公告)日：2020-09-01

    申请号：US15004276

    申请日：2016-01-22

    申请人： Bruce A. Fraser ,  Terry Nares

    发明人： Bruce A. Fraser ,  Terry Nares

    IPC分类号： F25B31/00 ,  F25B49/02 ,  F25B1/10 ,  F04B41/06 ,  F04B39/02 ,  F04B49/08 ,  F04B49/20 ,  F04C23/00

    摘要： A method of operating a multiple-compressor refrigeration system is provided. This method includes the steps of supplying, via a common supply line, refrigerant gas and oil to a plurality of compressors coupled in series, and attaching an oil flow conduit between adjacent compressors of the plurality of compressors. The oil flow conduit is configured to move oil from a compressor with a relatively higher pressure to a compressor with a relatively lower pressure. The method further includes controlling the pressure for each of the plurality of compressors by regulating a speed at which each of the plurality of compressors operates in order to maintain a pressure differential between the adjacent compressors to facilitate the flow of oil from the compressor with the relatively higher pressure to the compressor with the relatively lower pressure.