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公开(公告)号：US4406594A
公开(公告)日：1983-09-27
申请号：US269304
申请日：1981-06-01
CPC分类号： F16N13/20 , F04D1/14 , F04D29/06 , Y10S417/902
摘要： A compressor oil pump with integral contaminant collector and helical vane for improved pumping efficiency. A generally cone-shaped pick-up tube is adapted to be attached to the lower end of a hollow rotatably driven vertical shaft for rotation thereby about its longitudinal axis. The lower end of the pick-up tube includes an inlet opening which extends into a reservoir of oil. An annular contaminant collection groove is disposed circumferentially within the wall of the pick-up tube forming a pocket. This groove collects and retains contaminant particles contained in oil which is swept up the tapered interior surface of the tube due to the centrifugal force developed by its rotation. The helical vane is provided in the interior of the pick-up tube to increase its pumping efficiency. The vane acts to accelerate the oil to the rotational speed of the pump, thereby improving the volumetric flow output from the pump.
摘要翻译： 具有集成污染物收集器和螺旋叶片的压缩机油泵，提高泵送效率。 大致锥形的拾取管适于附接到中空可旋转驱动的垂直轴的下端，从而绕其纵向轴线旋转。 拾取管的下端包括延伸到油槽中的入口。 环形污染物收集槽周向设置在拾取管的壁内，形成袋。 该凹槽由于旋转产生的离心力而收集并保留在油中含有的污染物颗粒，其被扫过管的锥形内表面。 螺旋叶片设置在拾取管的内部以增加其抽吸效率。 叶片用于将油加速到泵的转速，从而提高从泵输出的体积流量。
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公开(公告)号：US06564560B2
公开(公告)日：2003-05-20
申请号：US09903168
申请日：2001-07-11
IPC分类号： F25B3100
CPC分类号： F04D29/063 , F04D25/06 , F04D29/023 , F04D29/059 , F04D29/5806 , F05D2300/20 , F05D2300/2283 , F05D2300/501 , F05D2300/5021 , F05D2300/522 , F16C33/6659 , F16C33/6692 , F16C2360/44 , F16C2380/26 , F25B31/002 , F25B31/006 , F25B31/008 , F25B49/025 , H02K7/083 , H02K9/20 , Y10S62/02
摘要： A refrigeration chiller employs a centrifugal compressor the impellers of which are mounted on a shaft which is itself mounted for rotation using rolling element bearings lubricated only by the refrigerant which constitutes the working fluid of the chiller system. Apparatus is taught for providing liquid refrigerant to (1.) the bearings immediately upon chiller start-up, during chiller operation and during a coastdown period subsequent to shutdown of the chiller and (2.) the drive motor of the chiller's compressor for motor cooling purposes. By use of a variable speed-driven motor to drive the compressor, optimized part load chiller performance is achieved in a chiller which does not require or employ an oil-based lubrication system.
摘要翻译： 制冷冷冻机采用离心式压缩机，其叶轮安装在轴上，该轴本身通过仅由构成冷却器系统的工作流体的制冷剂润滑的滚动元件轴承进行旋转。 教学设备用于在冷水机启动期间，冷水机组运行期间和冷却器停机后的滑行期间（1）提供液体制冷剂到（1）轴承;（2）制冷机用于电机冷却的压缩机的驱动电机 目的 通过使用变速驱动电机来驱动压缩机，在不需要或使用油基润滑系统的冷却器中实现优化的部件负载冷却器性能。
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公开(公告)号：US06279340B1
公开(公告)日：2001-08-28
申请号：US09578622
申请日：2000-05-25
IPC分类号： F25B4302
CPC分类号： F04D29/063 , F04D25/06 , F04D29/023 , F04D29/059 , F04D29/5806 , F05D2300/20 , F05D2300/2283 , F05D2300/501 , F05D2300/5021 , F05D2300/522 , F16C33/6659 , F16C33/6692 , F16C2360/44 , F16C2380/26 , F25B31/002 , F25B31/006 , F25B31/008 , F25B49/025 , H02K7/083 , H02K9/20 , Y10S62/02
摘要： A refrigeration chiller employs a centrifugal compressor the impellers of which are mounted on a shaft which is itself mounted for rotation using rolling element bearings lubricated only by the refrigerant which constitutes the working fluid of the chiller system. Apparatus is taught for providing liquid refrigerant to (1.) the bearings immediately upon chiller start-up, during chiller operation and during a coastdown period subsequent to shutdown of the chiller and (2.) the drive motor of the chiller's compressor for motor cooling purposes. By use of a variable speed-driven motor to drive the compressor, optimized part load chiller performance is achieved in a chiller which does not require or employ an oil-based lubrication system.
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公开(公告)号：US5509273A
公开(公告)日：1996-04-23
申请号：US393957
申请日：1995-02-24
IPC分类号： F04C18/16 , F04B49/02 , F04C28/12 , F04C28/24 , F04C28/26 , F16K31/12 , F16K31/122 , F25B31/00 , F25B49/02 , F04C29/10
CPC分类号： F04C28/125 , F04C2220/40 , Y10S418/01
摘要： The position of a slide valve in a screw compressor in a refrigeration system is controlled using a gaseous medium sourced from the higher pressure one of two or more sources of such fluid. Preferred sources are refrigerant gas in a closed compression pocket in the working chamber of the compressor and refrigerant gas in the discharge passage downstream of the compressor's discharge port. The multiple sources of such gas are connected to a solenoid valve which, when open, permits gas to act on the piston which controls the position of the slide valve. Due to a check valve arrangement, it is always the one of the sources of gas which is at higher pressure that acts on the slide valve actuating piston. The adverse affects of refrigerant gas out-gassing and gas bubble collapse associated with use of hydraulic fluid rather than a gaseous medium to modulate compressor capacity are avoided while advantageous use is made of compressor overcompression in the control of slide valve position.
摘要翻译： 使用来自这种流体的两个或多个来源中的较高压力的气体介质来控制制冷系统中的螺杆式压缩机中的滑阀的位置。 优选的来源是压缩机的工作室中的封闭的压缩袋中的制冷剂气体和压缩机排出口下游的排出通道中的制冷剂气体。 这种气体的多个源连接到电磁阀，其在打开时允许气体作用在活塞上，该活塞控制滑阀的位置。 由于单向阀装置，始终是作用在滑阀致动活塞上的较高压力的气体源之一。 避免了与使用液压油而不是气体介质相关的制冷剂气体排气和气泡塌陷的不利影响，以调节压缩机容量，同时有利地利用压缩机在压缩机位置控制中的过压。
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公开(公告)号：US4780061A
公开(公告)日：1988-10-25
申请号：US82158
申请日：1987-08-06
CPC分类号： F04C29/026 , F04C29/04 , F04C2220/40 , Y10S417/902 , Y10S418/01
摘要： A screw compressor assembly includes a motor housing section, a compressor section and an oil separator downstream of the compressor discharge port. The motor housing section defines a flow path for suction gas traveling to the working chamber of the compressor so that the compressor drive motor is cooled by suction gas. The motor housing section also internally defines an integral heat exchange structure through which a passage for the flow of oil is defined. Discharge pressure in the oil separator drives separated oil into the passage in the motor housing heat exchange structure prior to the delivery of such oil to compressor surfaces requiring lubrication. The oil flowing through the integral heat exchange structure is cooled by the suction gas passing over the surface of the heat exchange structure interior of the motor housing.
摘要翻译： 螺杆式压缩机组件包括在压缩机排出口下游的马达容纳部分，压缩机部分和油分离器。 马达容纳部分限定了用于吸入气体流到压缩机的工作室的流动路径，使得压缩机驱动马达被吸入气体冷却。 电动机容纳部分还内部限定一体化的热交换结构，通过该结构定义用于油流的通道。 在将油分送到需要润滑的压缩机表面之前，油分离器中的排出压力将分离的油驱动到马达壳体热交换结构中的通道中。 流过整体热交换结构的油被吸入气体冷却，该吸入气体通过马达壳体的热交换结构内部的表面。
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公开(公告)号：US4100934A
公开(公告)日：1978-07-18
申请号：US797155
申请日：1977-05-16
CPC分类号： F04B39/1086 , F04B39/1073 , Y10T137/7559 , Y10T137/7838 , Y10T137/7861
摘要： An annular valve stop insert for a compressor body is shown which has the function of establishing the positional relationship of the valve plate, valve and compressor body.
摘要翻译： 示出了用于压缩机主体的环形止动插件，其具有建立阀板，阀和压缩机主体的位置关系的功能。
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公开(公告)号：US4666381A
公开(公告)日：1987-05-19
申请号：US839316
申请日：1986-03-13
CPC分类号： F04C29/023
摘要： An oil distribution system for supplying lubricating oil to a thrust bearing, the bearing surfaces of an Oldham coupling, and a swing link bearing in a scroll compressor and allocating the oil between the bearings in proper proportion. Oil is pumped from a reservoir in the bottom of the compressor shell upward through a gallery that runs the length of a rotating drive shaft. The oil exits an opening at the top of the drive shaft and is thrown radially outward into a shallow cavity formed in a swing link that is rotatably driven by the shaft. The cavity is generally elongate in shape, so that oil collects in pools at each of its ends as a result of centrifugal force. Each of the two bearings is lubricated by oil that flows upward into the bearings either directly or through a passage from the pools of oil. The shape of the cavity and the position of the gallery opening within the cavity determine the proportion of oil flowing out of the gallery that is supplied to each bearing, insuring that each bearing is properly lubricated.
摘要翻译： 一种用于向止推轴承供应润滑油的油分配系统，十字联轴器的轴承表面和涡旋压缩机中的回转轴承，并以适当比例在轴承之间分配油。 油从压缩机壳体底部的储液器向上泵送通过一个延伸长度为旋转传动轴长度的油漆箱。 油从驱动轴的顶部离开一个开口，并被径向向外推入形成在由轴旋转驱动的摆动连杆中的浅腔中。 空腔的形状通常是细长的，因此，由于离心力，油在每个端部收集在池中。 两个轴承中的每一个都是通过直接或通过油池的通道向上流入轴承的油润滑的。 空腔的形状和腔内的开口位置确定了从供应给每个轴承的槽中流出的油的比例，确保每个轴承都被适当地润滑。
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8.发明授权
公开(公告)号：US4415317A
公开(公告)日：1983-11-15
申请号：US232526
申请日：1981-02-09
CPC分类号： F04C18/0215 , F01C19/08
摘要： A wrap element and tip seal are disclosed for use in fluid apparatus of the scroll type which include a wrap element having a groove disposed within its tip surface of spiroidal configuration generally conforming to that of the wrap element. A tip seal is disposed within the groove and comprises a plurality of strips of material disposed at least partially within the groove and arranged in side-by-side relationship at least partially across the width of the groove, each said strip extending along a longitudinal axis about the spiroidal configuration of the groove. By fabricating the seal from a plurality of strips of material, the necessity for expensive machining operations is obviated while a seal is provided which is relatively flexible in a radial direction as to accommodate the precise groove shape, while remaining relatively inflexible in an axial direction so as to provide the desired sealing characteristics. A variety of back-up means are disclosed for imposing a force upon the plurality of strips in an axial direction away from the wrap element while permitting movement thereof in an axial direction, thereby providing a desired sealing force while also affording a certain amount of axial compliance within the fluid apparatus.
摘要翻译： 公开了用于涡旋型流体装置的包裹元件和尖端密封件，其包括具有设置在其尖端表面内的通常符合包裹元件的螺旋形构造的凹槽的包裹元件。 尖端密封件设置在凹槽内并且包括至少部分地设置在凹槽内并且至少部分地跨越凹槽的宽度并排布置的多个材料条，每个所述条带沿着纵向轴线延伸 关于槽的螺旋形构造。 通过从多个材料条制造密封件，在提供密封件的过程中避免了昂贵的加工操作的必要性，该密封件在径向方向上相对柔性以适应精确的凹槽形状，同时在轴向保持相对不弯曲，因此 以提供期望的密封特性。 公开了各种备用装置，用于在远离卷绕元件的轴向方向上施加力到多个条带上，同时允许其在轴向方向上的移动，从而提供期望的密封力，同时还提供一定量的轴向 流体装置内的顺应性。
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公开(公告)号：US06176092B1
公开(公告)日：2001-01-23
申请号：US09169343
申请日：1998-10-09
IPC分类号： F25B4302
CPC分类号： F04D29/063 , F04D25/06 , F04D29/023 , F04D29/059 , F04D29/5806 , F05D2300/20 , F05D2300/2283 , F05D2300/501 , F05D2300/5021 , F05D2300/522 , F16C33/6659 , F16C33/6692 , F16C2360/44 , F16C2380/26 , F25B31/002 , F25B31/006 , F25B31/008 , F25B49/025 , H02K7/083 , H02K9/20 , Y10S62/02
摘要： A refrigeration chiller employs a centrifugal compressor the impellers of which are mounted on a shaft which is itself mounted for rotation using rolling element bearings lubricated only by the refrigerant which constitutes the working fluid of the chiller system. Apparatus is taught for providing liquid refrigerant to (1.) the bearings immediately upon chiller start-up, during chiller operation and during a coastdown period subsequent to shutdown of the chiller and (2.) the drive motor of the chiller's compressor for motor cooling purposes. By use of a variable speed-driven motor to drive the compressor, optimized part load chiller performance is achieved in a chiller which does not require or employ an oil-based lubrication system.
摘要翻译： 制冷冷冻机采用离心式压缩机，其叶轮安装在轴上，该轴本身通过仅由构成冷却器系统的工作流体的制冷剂润滑的滚动元件轴承进行旋转。 教学设备用于在冷水机启动期间，冷水机组运行期间和冷却器停机后的滑行期间（1）提供液体制冷剂到（1）轴承;（2）制冷机用于电机冷却的压缩机的驱动电机 目的 通过使用变速驱动电机来驱动压缩机，在不需要或使用油基润滑系统的冷却器中实现优化的部件负载冷却器性能。
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公开(公告)号：US4488855A
公开(公告)日：1984-12-18
申请号：US453304
申请日：1982-12-27
CPC分类号： F04C29/023 , Y10S417/902
摘要： A system for lubricating the main drive shaft bearings in a scroll compressor enclosed within a hermetic shell. The drive shaft and its main bearings are supported in a frame that defines first and second chambers adjacent each end of a main bearing. Each of the chambers includes an opening to a spatial volume contained within the compressor shell. An oil pump at the lower end of the drive shaft supplies oil through a bore in the shaft to a swing link bearing and a thrust bearing, both disposed adjacent its upper end. Oil is dispersed into the spatial volume as a mist of oil droplets by the rotating elements connected to the drive shaft. Fan means are disposed within the second chamber and are operative to develop a differential pressure between the two chambers so that oil droplets are drawn toward the first chamber, lubricating the main bearing as they pass through it.
摘要翻译： 一种用于润滑封闭在密封壳内的涡旋压缩机中的主驱动轴轴承的系统。 驱动轴及其主轴承支撑在框架中，该框架限定与主轴承的每个端部相邻的第一和第二腔室。 每个室包括一个开口，该开口通向压缩机壳体内的空间体积。 驱动轴下端的油泵通过轴中的孔将油通过摆动连杆轴承和推力轴承提供，两者均靠近其上端设置。 油通过连接到驱动轴的旋转元件作为油滴雾分散到空间体积中。 风扇装置设置在第二室内并且可操作以在两个室之间形成差压，使得油滴被吸向第一室，当它们通过主轴承时润滑主轴承。
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