公开(公告)号：US20020037230A1

公开(公告)日：2002-03-28

申请号：US09930549

申请日：2001-08-15

申请人： Thermo King Corporation

发明人： Lars Ivan Sjoholm ,  Gregory Gordon Anderson

IPC分类号： F04C018/16 ,  F04C029/10

CPC分类号： F04C28/26 ,  F04C18/16 ,  F04C28/28 ,  Y10T29/49242

摘要： A screw compressor having an unloader valve with a movable valve member, the unloader valve being capable of indicating when the valve member is installed incorrectly. The valve member is manufactured such that if it is installed incorrectly it provides a leakage path sufficiently large to be detected during full load testing of the compressor. When the screw compressor fails the load test, the compressor is partially disassembled, and the valve is reinstalled in the proper orientation and the compressor is re-tested. The valve member leakage path is provided while maintaining low costs for production and assembly of the compressor.

摘要翻译： 一种螺杆式压缩机，具有具有可移动阀构件的卸载阀，该卸载阀能够指示阀构件何时安装不正确。 制造阀构件使得如果其安装不正确，则其提供足够大的泄漏路径以在压缩机的全负载测试期间被检测。 当螺杆压缩机出现负载试验时，压缩机部分拆卸，阀门以正确的方向重新安装，压缩机经过重新测试。 提供阀构件泄漏路径，同时保持压缩机的生产和组装的低成本。

公开(公告)号：US20020037229A1

公开(公告)日：2002-03-28

申请号：US09930550

申请日：2001-08-15

申请人： Thermo King Corporation

发明人： Lars Ivan Sjoholm ,  Lee John Erickson

IPC分类号： F04C018/16

CPC分类号： F01C21/02 ,  F04C18/16 ,  F04C2240/801 ,  F16C35/067 ,  F16C2226/60 ,  Y10S384/903 ,  Y10T29/49242

摘要： A screw compressor includes a suction end, a discharge end, first and second rotors mounted for rotation between the suction end and the discharge end, and a discharge housing at the discharge end. The discharge housing surrounds a portion of the first and second rotors and includes an end surface. The compressor further includes a first axial bearing supporting the first rotor, and a wear-preventing member sandwiched between the end surface of the discharge housing and the first axial bearing such that no portion of the first axial bearing contacts the end surface. The screw compressor further includes a first radial bearing in the discharge housing for supporting the first rotor. The wear-preventing member includes a face abutting the end surface of the discharge housing and abutting at least a portion of the first radial bearing to retain the first radial bearing in the discharge housing.

摘要翻译： 螺杆式压缩机包括抽吸端，排出端，安装成用于在吸入端和排出端之间旋转的第一和第二转子，以及在排出端处的排出壳体。 排放壳体围绕第一和第二转子的一部分并且包括端面。 压缩机还包括支撑第一转子的第一轴向轴承和夹在排出壳体的端面与第一轴向轴承之间的防磨损构件，使得第一轴向轴承的任何部分都不接触端面。 螺杆式压缩机还包括用于支撑第一转子的排放壳体中的第一径向轴承。 防磨构件包括邻接排出壳体的端面的表面并抵靠第一径向轴承的至少一部分以将第一径向轴承保持在排出壳体中。

公开(公告)号：US20020035839A1

公开(公告)日：2002-03-28

申请号：US09930392

申请日：2001-08-15

申请人： Thermo King Corporation

发明人： Lars Ivan Sjoholm ,  Lee J. Erickson ,  Dean William Osterman

IPC分类号： F25B031/00 ,  F25B043/02

CPC分类号： F04C29/026 ,  F04C18/16 ,  F04C29/0007 ,  F04C2270/72 ,  F25B31/004 ,  F25B43/02 ,  F25B49/00

摘要： A compressor and oil separator assembly for compressing a fluid includes a suction end, a discharge end, and first and second rotors rotatably mounted between the suction and discharge ends. A discharge line communicates with the discharge end, and an oil separator communicates with the discharge line. An oil sump communicates with the oil separator and an oil supply line communicates between the oil sump and the rotors. A bleed line selectively communicates between the discharge line and the oil supply line for equalizing a pressure differential between the suction end and the discharge end without causing substantial backward rotation of the rotors or displacement of oil to the rotors through the oil supply line. Preferably, the assembly further includes a valve that defines a portion of the discharge line and is also coupled to the bleed line.

摘要翻译： 用于压缩流体的压缩机和油分离器组件包括吸入端，排出端以及可旋转地安装在吸入端和排出端之间的第一和第二转子。 排出管路与排出端连通，油分离器与排出管路连通。 油底壳与油分离器连通，供油管路与油底壳和转子连通。 排气管线选择性地连通排放管线和供油管线，以均衡吸入端和排出端之间的压力差，而不会引起转子的大量反向转动或通过供油管路将油移动到转子。 优选地，组件还包括限定排出管线的一部分并且还联接到排出管线的阀。