公开(公告)号：WO2015148647A1

公开(公告)日：2015-10-01

申请号：PCT/US2015/022460

申请日：2015-03-25

Applicant: TRANE INTERNATIONAL INC.

Inventor： CRUM, Daniel, R. ,  BAKKESTUEN, Robert, S. ,  CHILCOTE, Greg ,  SALESMAN, Aaron

IPC: F04D29/05 ,  F04D29/60

CPC classification number: H02K1/28 ,  H02K7/003 ,  H02K2213/03

Abstract: Methods, systems and apparatuses for mounting a motor rotor to a shaft of a compressor are disclosed. The shaft can include a rib region that is configured to form a press fit or a transition fit with the rotor bore. An end of the shaft can also include a plurality of crenulations that can be expanded outwardly in a radial direction relative to a centerline of the shaft. After the rotor is mounted onto the shaft, the crenulations can be expanded to eliminate the clearance between the shaft and the rotor to form a press fit with the rotor bore.

Abstract translation: 公开了一种用于将马达转子安装到压缩机的轴上的方法，系统和装置。 轴可以包括肋区域，其被构造成形成压配合或与转子孔的过渡配合。 轴的端部还可以包括可以相对于轴的中心线在径向方向上向外扩展的多个齿轮。 在将转子安装到轴上之后，可以扩大齿轮以消除轴和转子之间的间隙，以形成与转子孔的压配合。

公开(公告)号：WO2013067099A1

公开(公告)日：2013-05-10

申请号：PCT/US2012/062930

申请日：2012-11-01

Applicant: TRANE INTERNATIONAL INC. ,  BAKKESTUEN, Robert, S. ,  JOHNSON, Jay, H.

Inventor： BAKKESTUEN, Robert, S. ,  JOHNSON, Jay, H.

IPC: F04C2/14 ,  F04C27/00 ,  F04C18/16

CPC classification number: F04C18/16 ,  F04C23/008 ,  F04C27/009 ,  F04C29/0028 ,  G01F1/34

Abstract: A compressor for compressing refrigerant in a refrigerant circuit includes a housing defining a compression chamber. A screw rotor is mounted within the housing and configured to form a pocket of high pressure refrigerant and a pocket of low pressure refrigerant within the compression chamber. The screw rotor has a rotor shaft rotating about an axis. A bearing cavity includes at least one bearing rotatably supporting the rotor shaft. A partition through which the rotor shaft extends separates the bearing cavity from the compression chamber. A contacting seal is sealingly engaged with the rotor shaft and disposed in the bearing cavity proximate the partition. A passage has an opening adjacent the rotor shaft between the contacting seal and the compression chamber and in fluid communication with the pocket of low pressure refrigerant.

Abstract translation: 用于压缩制冷剂回路中的制冷剂的压缩机包括限定压缩室的壳体。 螺杆转子安装在壳体内并构造成在压缩室内形成高压制冷剂袋和低压制冷剂袋。 螺杆转子具有围绕轴线旋转的转子轴。 轴承腔包括可旋转地支撑转子轴的至少一个轴承。 转子轴延伸穿过的分隔件将轴承腔与压缩室分开。 接触密封件与转子轴密封地接合并且设置在靠近分隔件的轴承腔中。 通道在接触密封件和压缩室之间具有与转子轴相邻的开口并且与低压制冷剂的袋流体连通。

公开(公告)号：WO2021067478A1

公开(公告)日：2021-04-08

申请号：PCT/US2020/053603

申请日：2020-09-30

Applicant: TRANE INTERNATIONAL INC.

Inventor： JEUNG, Sung, Hwa ,  HEGER, Joseph, M. ,  ROESLER, Charles E., Jr. ,  JOHNSON, Jay, H. ,  BAKKESTUEN, Robert, S.

IPC: F04D29/58 ,  F04D29/056 ,  F04D29/053 ,  F04D29/42 ,  F04D17/08 ,  F25B31/00 ,  F25B1/053

Abstract: A heat transfer circuit includes a compressor, a condenser, an expander, and an evaporator. The compressor includes a shaft that is rotated to compress a working fluid and a gas bearing to support the shaft. A conduit is configured to supply a portion of the working fluid to the compressor to cool the gas bearing. A method of controlling a heat transfer circuit includes directing a working fluid through a main flow path of the heat transfer circuit that directs the working fluid through a compressor, a condenser, an expander, an evaporator, and back to the compressor. The method also includes suppling supplying a portion of the working fluid in the main flow path to the compressor to cool a gas bearing of the compressor.