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134 条记录 (耗时 0.04 秒)

    Scroll compressor with reverse offset at wrap tips
    4.
    发明授权
    Scroll compressor with reverse offset at wrap tips 失效
    涡旋压缩机在包装尖端具有反向偏移

    公开(公告)号：US6120268A

    公开(公告)日：2000-09-19

    申请号：US931702

    申请日：1997-09-16

    申请人： James W. Bush ,  Alexander Lifson

    发明人： James W. Bush ,  Alexander Lifson

    IPC分类号： F04C18/02 ,  F04C18/04

    CPC分类号： F04C18/0269

    摘要： An improved geometry for scroll wrap inner portion includes a groove which facilitates opening of the compression chambers to the discharge ports early in the cycle of the orbiting scroll. Stated one way, a forward end of the scroll wrap tip is thinner than a portion spaced from the forward end. A first curve defines the forwardmost end of said tip and extends to a forward ledge. A second circular curve is spaced from the forward ledge and extends to a rear ledge. An intermediate curve connects the forward and rear ledges. The rear curve is centered on a second radius, and if the second radius were extended beyond the rear ledge, the extension would move to a position spaced from the forward ledge and towards the opposed wrap. The swing radius for the scroll compressor wrap measured begins at the position wherein the forward ledge of one wrap faces the rear ledge of an opposed wrap begins on one side of zero, then crosses zero with an increasing scroll wrap, and then moves to an opposed side of zero. The inventive scroll compressor wrap achieves more rapid and smooth opening of the compression chambers to the discharge ports.

    摘要翻译： 用于涡旋包裹内部部分的改进的几何形状包括有利于在绕动涡盘的循环中早期将压缩室打开到排出口的凹槽。 以单向方式，涡旋包装尖端的前端比与前端间隔开的部分薄。 第一曲线限定所述尖端的最前端并且延伸到前凸缘。 第二圆形曲线与前凸缘间隔开并延伸到后凸缘。 中间曲线连接前方和后方。 后曲线以第二半径为中心，并且如果第二半径延伸超过后凸缘，则延伸部将移动到与前凸缘间隔开并朝向相对的卷边的位置。 涡旋压缩机外壳的摆动半径开始于其中一个涡卷的前凸缘面向相对的涡卷的后凸缘的位置在零的一侧开始的位置，然后与增加的涡卷卷绕成零，然后移动到相对的 一边为零。 本发明的涡旋压缩机涡卷实现了压缩室到排出口的更快速和平滑的打开。

    Scroll compressor with controlled fluid venting to back pressure chamber
    6.
    发明授权
    Scroll compressor with controlled fluid venting to back pressure chamber 失效

    公开(公告)号：US5762483A

    公开(公告)日：1998-06-09

    申请号：US789933

    申请日：1997-01-28

    申请人： Alexander Lifson ,  James W. Bush

    发明人： Alexander Lifson ,  James W. Bush

    IPC分类号： F04C18/02 ,  F04C27/00 ,  F01C1/04 ,  F04C18/04

    CPC分类号： F04C27/005 ,  F04C18/0261 ,  F04C18/0292

    摘要： An improved control over the pressure vented or tapped to a back pressure chamber in a scroll compressor is achieved by maintaining a vent hole closed for the majority of the operational cycle of the scroll compressor. The hole is preferably selectively exposed to a discharge pressure for a small portion of the cycle, and to an intermediate pressure for a second small portion of the cycle. Other than those two small portions, the hole is preferably closed. The invention reduces pulsation in the back pressure chamber and also reduces pumping losses caused by fluid moving into and out of the back pressure chamber through the hole. In one embodiment, grooves are formed in the fixed scroll member to communicate a selected intermediate pressure and a discharge pressure to locations on the base plate of the fixed scroll member. A vent hole in the wrap of the orbiting scroll member cyclically moves over the two grooves. The vent hole is closed by the base plate of the fixed scroll member for the majority of its operational cycle. In a second embodiment, a pair of holes are formed through the base plate of one of the scroll members. The holes are covered by the wrap of the other scroll member for the majority of the operational cycle of the scroll compressor. Each hole is open for a small portion of the operational cycle to selectively tap an intermediate and discharge pressure to the back pressure chamber.

    Scroll compressor with controlled fluid venting to back pressure chamber
    7.
    发明授权
    Scroll compressor with controlled fluid venting to back pressure chamber 失效
    涡旋式压缩机，控制流体排放到背压室

    公开(公告)号：US06517332B1

    公开(公告)日：2003-02-11

    申请号：US09032554

    申请日：1998-02-27

    申请人： Alexander Lifson ,  James W. Bush

    发明人： Alexander Lifson ,  James W. Bush

    IPC分类号： F04C1804

    CPC分类号： F04C27/005 ,  F04C18/0261 ,  F04C18/0292

    摘要： An improved control over the pressure vented or tapped to a back pressure chamber in a scroll compressor is achieved by maintaining a vent hole closed for the majority of the operational cycle of the scroll compressor. The hole is preferably selectively exposed to a discharge pressure for a small portion of the cycle, and to an intermediate pressure for a second small portion of the cycle. Other than those two small portions, the hole is preferably closed. The invention reduces pulsation in the back pressure chamber and also reduces pumping losses caused by fluid moving into and out of the back pressure chamber through the hole. In one embodiment, grooves are formed in the fixed scroll member to communicate a selected intermediate pressure and a discharge pressure to locations on the base plate of the fixed scroll member. A vent hole in the wrap of the orbiting scroll member cyclically moves over the two grooves. The vent hole is closed by the base plate of the fixed scroll member for the majority of its operational cycle. In a second embodiment, a pair of holes are formed through the base plate of one of the scroll members. The holes are covered by the wrap of the other scroll member for the majority of the operational cycle of the scroll compressor. Each hole is open for a small portion of the operational cycle to selectively tap an intermediate and discharge pressure to the back pressure chamber.

    摘要翻译： 通过在涡旋压缩机的大部分操作循环中保持关闭通气孔来实现对涡旋压缩机中的背压室排出或抽吸的压力的改进控制。 该孔优选地选择性地暴露于循环的一小部分的排出压力，并且优选地暴露于循环的第二小部分的中间压力。 除了两个小部分之外，孔最好是封闭的。 本发明减少了背压室中的脉动，并且还降低了流体通过孔进入和离开背压室所引起的泵送损失。 在一个实施例中，在固定涡旋构件中形成槽，以将选定的中间压力和排出压力连通到固定涡旋构件的基板上的位置。 绕动涡旋件的涡卷中的通气孔循环地移动到两个凹槽上。 在其大部分操作周期中，通气孔由固定涡旋件的基板封闭。 在第二实施例中，通过一个涡旋件的基板形成一对孔。 在涡旋压缩机的大部分操作循环中，这些孔被另一个涡旋件的包裹物覆盖。 每个孔在操作循环的一小部分打开，以选择性地分离中间体并将压力排出到背压室。

    Oil retention in compressor slider block
    8.
    发明授权
    Oil retention in compressor slider block 失效
    压缩机滑块中的保油

    公开(公告)号：US06354822B1

    公开(公告)日：2002-03-12

    申请号：US09571824

    申请日：2000-05-16

    申请人： Alexander Lifson ,  James W. Bush

    发明人： Alexander Lifson ,  James W. Bush

    IPC分类号： F01C102

    CPC分类号： F16C33/1075 ,  F01C21/02 ,  F04C18/0215 ,  F04C29/028 ,  F04C2240/50

    摘要： Oil retention recesses are formed in an outer periphery of the slider block of a scroll compressor. The recesses insure that a quantity of oil is captured and maintained during operation and after shutdown of the scroll compressor. If the scroll compressor is operated or started back up during a “starved” lubricant condition, the captured oil insures the scroll compressor can operate without damage for a period of time such that lubricant can be returned to the sealed compressor.

    摘要翻译： 在涡旋式压缩机的滑动块的外周形成有油保持凹部。 凹槽确保在操作期间和在关闭涡旋压缩机之后捕获并维持一定量的油。 如果涡轮压缩机在“饥饿”的润滑条件下被操作或开始备份，则所捕获的油确保涡旋压缩机能够在不损坏的情况下运行一段时间，使得润滑剂可以返回到密封的压缩机。

    Scroll compressor with reduced height orbiting scroll wrap
    9.
    发明授权
    Scroll compressor with reduced height orbiting scroll wrap 失效
    滚动压缩机，减少高度绕涡卷

    公开(公告)号：US5857844A

    公开(公告)日：1999-01-12

    申请号：US762414

    申请日：1996-12-09

    申请人： Alexander Lifson ,  James W. Bush

    发明人： Alexander Lifson ,  James W. Bush

    IPC分类号： F04C18/02 ,  F25B1/04 ,  F04C18/04

    CPC分类号： F04C18/0276 ,  F04C18/0269

    摘要： An improved scroll compressor has an orbiting scroll wrap that is designed to always be at most equal in height to the fixed scroll wrap. The orbiting scroll wrap is preferably designed shorter than the fixed scroll wrap by a distance equal to the manufacturing tolerances on the height of the two scroll wraps added together. In this way, the present invention insures that in no acceptable parts will the height of the orbiting scroll wrap exceed the height of the fixed scroll wrap. In a situation where the height of the orbiting scroll wrap does exceed the height of the fixed scroll wrap, there is a tendency to limit the stable operational envelope of the system. By insuring that the orbiting scroll wrap height is always at most equal to the fixed scroll wrap height, the present invention avoids this limitation on the operational envelope.

    摘要翻译： 一种改进的涡旋式压缩机具有绕涡卷涡卷，其被设计成与固定的涡旋涡卷总是高度相等。 优选地，绕涡旋涡卷被设计成比固定涡卷卷绕的距离等于加在一起的两个涡旋卷筒的高度上的制造公差。 以这种方式，本发明确保在不可接受的部分中，绕动涡卷的高度超过固定涡卷的高度。 在绕动涡卷的高度超过固定涡旋盘的高度的情况下，存在限制系统的稳定运行范围的趋势。 通过确保绕动涡卷的高度总是等于固定的卷绕高度，本发明避免了对操作范围的这种限制。

    Multi-temperature cooling system with unloading
    10.
    发明授权
    Multi-temperature cooling system with unloading 有权
    多温冷却系统卸货

    公开(公告)号：US07353660B2

    公开(公告)日：2008-04-08

    申请号：US10940235

    申请日：2004-09-13

    申请人： Alexander Lifson ,  James W. Bush

    发明人： Alexander Lifson ,  James W. Bush

    IPC分类号： F25B5/00 ,  F25B1/10

    CPC分类号： B60H1/00885 ,  B60H2001/00942 ,  B60H2001/00957 ,  F25B1/10 ,  F25B5/02 ,  F25B2400/13 ,  F25B2600/0261

    摘要： A compressor has an inlet, an outlet, and at least an intermediate first port therebetween. A condenser is coupled to the compressor to receive refrigerant. First and second evaporators are coupled to the condenser to receive refrigerant. Conduits define a return flowpath from the first evaporator to the compressor inlet and a second return flowpath from the second evaporator to the intermediate port. A bypass conduit extends between a first location between the first evaporator and the compressor inlet and a second location between the second evaporator and the first port.

    摘要翻译： 压缩机具有入口，出口和至少其间的中间第一端口。 冷凝器联接到压缩机以接收制冷剂。 第一和第二蒸发器联接到冷凝器以接收制冷剂。 管道定义从第一蒸发器到压缩机入口的回流路径以及从第二蒸发器到中间端口的第二返回流路。 旁通管道在第一蒸发器和压缩机入口之间的第一位置和第二蒸发器与第一端口之间的第二位置之间延伸。