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公开(公告)号：US20090311119A1
公开(公告)日：2009-12-17
申请号：US12307805
申请日：2007-07-27
CPC分类号： F04C18/16 , F04C27/006 , F04C28/265
摘要： A screw compressor has a housing (22; 302) having first (53; 330) and second (58; 340) ports along a flowpath. A first rotor (26; 306) has a lobed body. A second rotor (28; 308, 310) has a lobed body enmeshed with the first rotor body. The rotors and housing cooperate to define a compression path between suction (60; 332) and discharge (62; 342) locations along the flowpath. Means (100, 110, 120; 200, 210, 220; 370, 380, 390) provide relative longitudinal movement between a blocking portion (57; 352) of the housing and at least one of the first rotor and second rotor between: a first condition wherein a pocket of the first and second rotors is closed by the blocking portion; and a second condition wherein the blocking portion does not close the pocket. To provide capacity control, a control system (110; 390) is configured to provide duty cycle control of the movement.
摘要翻译： 螺杆式压缩机具有沿着流路具有第一（53; 330）和第二（58,340）端口的壳体（22; 302）。 第一转子（26; 306）具有裂片体。 第二转子（28; 308,310）具有与第一转子本体啮合的裂片体。 转子和壳体协作以沿着流动路径在吸力（60; 332）和排放（62; 342）之间限定压缩路径。 装置（100,110,120; 200,210,220; 370,380,390）提供在壳体的阻挡部分（57; 352）与第一转子和第二转子中的至少一个之间的相对纵向运动： 第一状态，其中第一和第二转子的凹部被阻挡部分封闭; 以及第二状态，其中阻挡部分不关闭口袋。 为了提供容量控制，控制系统（110; 390）被配置为提供运动的占空比控制。
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公开(公告)号：US5295815A
公开(公告)日：1994-03-22
申请号：US85793
申请日：1993-07-06
CPC分类号： F04C29/02 , F04B39/0261 , F25B31/002
摘要： In a compressor where an oil pump is driven by a crankshaft through a drive tang with oil passing through the drive tang. The bolts holding the drive tang in place tend to agitate the oil and create foam. To prevent foam from being drawn into the oil pump, the agitation is isolated by a sub-chamber defined in part by a spring retainer while oil is supplied via a tube extending through the sub-chamber.
摘要翻译： 在压缩机中，油泵由曲轴通过驱动柄脚驱动，油通过驱动柄脚。 将驱动柄固定到位的螺栓倾向于搅动油并产生泡沫。 为了防止泡沫被吸入油泵，通过由弹簧保持器限定的子室隔离搅拌器，同时通过延伸穿过子室的管道供给油。
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公开(公告)号：US06579067B1
公开(公告)日：2003-06-17
申请号：US10029822
申请日：2001-12-31
申请人： Steven J. Holden
发明人： Steven J. Holden
IPC分类号： F04B4106
CPC分类号： F04C28/02 , F04B41/06 , F04B49/20 , F04B2203/0209 , F04C28/06 , F04C28/08 , F25B2600/021
摘要： A system for variable speed control of a plurality of compressors under variable load demand. The system includes a constant power source and a plurality of compressor motors having switches to connect with the constant power source. The system further includes a variable speed drive for driving any one of the plurality of compressor motors at variable speed, wherein each of the plurality of compressor motors includes a switch to connect with the variable speed drive. Each of the plurality of compressor motors is selectively electrically connected with the variable speed drive or the constant power source via the switches, for driving the each of the plurality of motors at one of variable or constant speed in response to compressor load demands.
摘要翻译： 一种用于可变负载需求下的多个压缩机的可变速度控制的系统。 该系统包括恒定电源和具有与恒定电源连接的开关的多个压缩机电动机。 该系统还包括用于以可变速度驱动多个压缩机马达中的任何一个的变速驱动器，其中多个压缩机马达中的每一个包括与变速驱动器连接的开关。 多个压缩机电动机中的每一个经由开关与变速驱动器或恒定电源选择性地电连接，以响应于压缩机负载需求以可变或恒定速度的一个驱动多个电动机中的每一个。
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公开(公告)号：US08079144B2
公开(公告)日：2011-12-20
申请号：US12013992
申请日：2008-01-14
申请人： Steven J. Holden
发明人： Steven J. Holden
IPC分类号： B23P6/00
CPC分类号： F04C18/165 , F04C2230/602 , F04C2230/91 , F05C2201/0442 , Y10T29/49238 , Y10T29/49746 , Y10T29/49885 , Y10T29/49982
摘要： A compressor has a housing assembly and at least one rotor held by the housing assembly for rotation about a rotor axis. The rotor has a first face and a first housing element has a second face in facing spaced-apart relation to the first face of the rotor. One or more spacer elements are positioned from the first housing element. The spacer elements are machined. A coating is applied over the first surface around the one or more spacer elements.
摘要翻译： 压缩机具有壳体组件和由壳体组件保持的至少一个转子，用于围绕转子轴线旋转。 转子具有第一面，并且第一壳体元件具有与转子的第一面相对的间隔开的第二面。 一个或多个间隔元件从第一壳体元件定位。 间隔元件被加工。 在一个或多个间隔元件周围的第一表面上施加涂层。
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公开(公告)号：US07257958B2
公开(公告)日：2007-08-21
申请号：US10798586
申请日：2004-03-10
申请人： James W. Bush , Steven J. Holden
发明人： James W. Bush , Steven J. Holden
CPC分类号： F25B1/10 , F25B1/04 , F25B5/02 , F25B40/00 , F25B2400/13
摘要： A refrigeration system has first and second evaporators which may be operated at first and second temperatures. Refrigerant from a lower temperature evaporator may be returned to a compressor suction port. Refrigerant from the higher temperature evaporator may be returned to an intermediate port.
摘要翻译： 制冷系统具有可在第一和第二温度下操作的第一和第二蒸发器。 来自较低温度蒸发器的制冷剂可以返回到压缩机吸入口。 来自较高温度蒸发器的制冷剂可以返回到中间端口。
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公开(公告)号：US5603227A
公开(公告)日：1997-02-18
申请号：US557390
申请日：1995-11-13
CPC分类号： F25B5/02 , F25B31/002 , F25B41/04 , F25B2400/13
摘要： A normally closed valve is located downstream of the oil separator to insure that sufficient oil pressure builds up to lubricate the compressor. The valve is responsive to the differential pressure between discharge and economizer such that throttling takes place over a limited portion of the operating envelope.
摘要翻译： 常闭阀位于油分离器的下游，以确保足够的油压积聚以润滑压缩机。 阀门对排气管和节能器之间的压差有反应，从而在操作外壳的有限部分进行节流。
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公开(公告)号：US07739189B1
公开(公告)日：2010-06-15
申请号：US11875404
申请日：2007-10-19
IPC分类号： G06Q40/00
CPC分类号： G06Q40/02 , G06Q40/00 , G06Q40/025 , G06Q40/04
摘要： A system and method of detecting potential fraud in connection with mortgage loan lending, where a first group made up of a plurality of mortgage loans is utilized to calculate a representative value associated with a loan-related event. A second group also made up of a plurality of mortgage loans is utilized to calculate a predicted representative value associated with the same loan-related event. The actual and predicted representative values are compared to determine a deviation value. If the deviation exceeds a predetermined threshold, an output indicating potential fraud is generated.
摘要翻译： 一种用于检测与按揭贷款有关的潜在欺诈的系统和方法，其中使用由多个抵押贷款组成的第一组来计算与贷款相关事件相关联的代表值。 另外由多个抵押贷款组成的第二组用于计算与同一贷款相关事件相关的预测代表值。 将实际和预测的代表值进行比较以确定偏差值。 如果偏差超过预定阈值，则产生指示潜在欺诈的输出。
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公开(公告)号：US06739851B1
公开(公告)日：2004-05-25
申请号：US10331793
申请日：2002-12-30
申请人： Steven J. Holden
发明人： Steven J. Holden
IPC分类号： F01C2100
CPC分类号： F04C27/006 , F04C18/086 , F04C18/165 , F04C2230/602 , F04C2230/91 , F05C2201/0442 , Y10T29/49238 , Y10T29/49242 , Y10T29/49885
摘要： A compressor has a housing assembly and at least one rotor held by the housing assembly for rotation about a rotor axis. The rotor has a first face and a first housing element has a second face in facing spaced-apart relation to the first face of the rotor. The housing has a coating on the second face and a plurality of inserts protruding from the second face into the coating.
摘要翻译： 压缩机具有壳体组件和由壳体组件保持的至少一个转子，用于围绕转子轴线旋转。 转子具有第一面，并且第一壳体元件具有与转子的第一面相对的间隔开的第二面。 壳体在第二面上具有涂层，并且多个插入件从第二面突出到涂层中。
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公开(公告)号：US08206132B2
公开(公告)日：2012-06-26
申请号：US12294116
申请日：2006-06-02
申请人： Steven J. Holden
发明人： Steven J. Holden
IPC分类号： F04B49/22
CPC分类号： F04C18/16 , F04C23/008 , F04C28/12 , F04C28/16 , F04C28/24 , F04C2270/18 , F16K17/04
摘要： A compressor (20) has an unloading slide valve (100). The valve has a valve element (102) having a range between a first condition and a second condition, the second condition being unloaded relative to the first condition. A piston (124) is in a cylinder (128) and mechanically coupled to the valve element. A control valve (140) is coupled to a headspace (138) of the cylinder to selectively expose the headspace to a flu source (144), pressure of fluid in the headspace producing a force on the piston and valve element in a direction from the second condition toward the first condition. The compressor includes a pressure relief valve coupling (180) in the headspace to suction conditions to unload the compressor responsive to an overpressure.
摘要翻译： 压缩机（20）具有卸载滑阀（100）。 阀具有在第一状态和第二状态之间的范围的阀元件（102），第二状态相对于第一状态被卸载。 活塞（124）位于气缸（128）中并且机械地联接到阀元件。 控制阀（140）联接到气缸的顶部空间（138）以选择性地将顶部空间暴露于流感源（144），顶部空间中的流体的压力在活塞和阀元件上沿着从 第二个条件朝着第一个状态。 压缩机包括在顶部空间中的压力释放阀联接（180），以响应于过压而卸载压缩机的抽吸条件。
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公开(公告)号：US07635959B2
公开(公告)日：2009-12-22
申请号：US11577837
申请日：2005-10-31
IPC分类号： H02P6/12
CPC分类号： F04B49/06 , F04B2203/0202 , F04B2203/0204 , F04B2203/0209 , H02P27/048 , H02P27/08
摘要： A compressor is powered by a motor which is, in turn, powered by a variable speed drive (VSD). The switching frequency and voltage/frequency relationship of the VSD may be adjusted dynamically to maximize efficiency.
摘要翻译： 压缩机由马达驱动，马达又由变速驱动器（VSD）供电。 可以动态调整VSD的开关频率和电压/频率关系，以最大限度地提高效率。
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