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    SYSTEMS AND METHODS TO CLAMP AN IMPELLER TO A COMPRESSOR SHAFT
    3.
    发明申请
    SYSTEMS AND METHODS TO CLAMP AN IMPELLER TO A COMPRESSOR SHAFT 审中-公开

    公开(公告)号：US20200149541A1

    公开(公告)日：2020-05-14

    申请号：US16600670

    申请日：2019-10-14

    Applicant: TRANE INTERNATIONAL INC.

    Inventor： Mark W. Harrison ,  Jon Christopher Johnson ,  Todd W. Smith

    IPC: F04D29/051 ,  F04D29/26 ,  F04D25/06 ,  F04D29/62 ,  F04D17/12

    Abstract: Systems and methods to clamp an impeller on a shaft in a centrifugal compressor. The embodiments as disclosed herein may include clamping individual impeller independently to the shaft, which may reduce the tolerance stack-up effect of a plurality of impellers. The impeller can be clamped to the shaft by positioning, for example, a relatively stiff support (e.g. a shaft locknut) on a front side of the impeller. The impeller can also be clamped to the shaft by a relatively flexible support to compensate for e.g. thermal expansion/contraction of the impeller. The embodiments as disclosed herein are particularly suitable for a multi-stage impeller.

    SEALING JOINT FOR A COMPRESSOR CASING
    4.
    发明申请
    SEALING JOINT FOR A COMPRESSOR CASING 有权
    密封接头用于压缩机壳体

    公开(公告)号：US20150198170A1

    公开(公告)日：2015-07-16

    申请号：US14413163

    申请日：2013-07-08

    Applicant: TRANE INTERNATIONAL INC.

    Inventor： Mark W. Harrison

    IPC: F04D29/08 ,  F04D29/42

    CPC classification number: F04D29/083 ,  F01C21/10 ,  F04C27/008 ,  F04C2240/805 ,  F04D29/4206

    Abstract: A sealing joint for a compressor casing, such as a compressor casing for a centrifugal compressor of a chiller, is provided. The sealing joint may be configured to have a first cover and a second cover. A first mating surface of the first cover may have an inner annular portion surrounding an inner cavity of the sealing joint, and an outer annular portion. The inner annular portion may be positioned between the inner cavity of the compressor casing and the outer annular portion. A sealant may be applied to the sealing joint, and a depth of the sealant on the inner annular portion may be deeper than a depth of the sealant on the outer annular portion. The depth of the sealant on the inner annular portion may help the sealing joint tolerate more elongation range without a sealant failure than a regular casing.

    Abstract translation: 提供了一种用于压缩机壳体的密封接头，例如用于冷却器的离心式压缩机的压缩机壳体。 密封接头可以被配置为具有第一盖和第二盖。 第一盖的第一配合表面可以具有围绕密封接头的内腔的内环形部分和外环形部分。 内环形部分可以位于压缩机壳体的内腔和外环形部分之间。 可以将密封剂施加到密封接头，并且内环形部分上的密封剂的深度可以比外环形部分上的密封剂的深度更深。 内环形部分上的密封剂的深度可以帮助密封接头耐受更多的伸长率范围而不会比常规外壳发生密封剂破坏。

    COMPRESSOR LUBRICATION SUPPLY SYSTEM AND COMPRESSOR THEREOF
    5.
    发明公开
    COMPRESSOR LUBRICATION SUPPLY SYSTEM AND COMPRESSOR THEREOF 审中-公开

    公开(公告)号：US20240183360A1

    公开(公告)日：2024-06-06

    申请号：US18439032

    申请日：2024-02-12

    Applicant: TRANE INTERNATIONAL INC.

    Inventor： Mark W. Harrison ,  Steven J. Pitts ,  Todd W. Smith

    IPC: F04D29/063 ,  F16N39/02 ,  F16N39/04 ,  F25B31/00

    CPC classification number: F04D29/063 ,  F16N39/02 ,  F16N39/04 ,  F25B31/004 ,  F25B31/008

    Abstract: A lubricant supply system is for a compressor that compresses a first working fluid in a heat transfer circuit. The lubricant supply system includes a lubricant tank, a lubricant pathway for supplying lubricant from the lubricant tank to one or more bearings of the compressor, and a lubricant refrigeration system with a lubricant heater and a lubricant cooler. The lubricant heater configured to heat the lubricant discharged from the one or more bearings and the lubricant cooler configured to cool the lubricant flowing through the lubricant pathway. A method of lubricating a compressor includes heating the lubricant, directing the lubricant from a lubricant tank through a lubricant pathway to one or more bearings of the compressor, and cooling the lubricant passing through the lubricant pathway.

    COMPRESSOR INTERSTAGE THROTTLE, AND METHOD OF OPERATING THEROF
    7.
    发明申请
    COMPRESSOR INTERSTAGE THROTTLE, AND METHOD OF OPERATING THEROF 有权

    公开(公告)号：US20230139727A1

    公开(公告)日：2023-05-04

    申请号：US17453454

    申请日：2021-11-03

    Applicant: TRANE INTERNATIONAL INC.

    Inventor： Mark W. Harrison ,  Jon Christopher Johnson

    IPC: F04D27/00 ,  F04D17/12 ,  F04D29/44 ,  F04D29/22

    Abstract: An interstage throttle for a centrifugal compressor includes a flow guide plate, a throttle ring, a drive ring, and linkage assemblies. The flow guide plate includes guide vanes that form channels that direct working fluid in between stages of the compressor. The linkage assemblies connect the drive ring to the throttle ring such that rotation of the drive ring moves the throttle ring in an axial direction. Teeth of the throttle ring partially block the channels when the throttle ring is in an extended position. A method of operating a centrifugal compressor includes directing the working fluid discharged from the first stage to a second stage via channels in a interstage throttle. A centrifugal compressor includes a first stage with a first impeller, a second stage with a second impeller, and an interstage throttle fluidly connecting the first stage to the second stage.

    Systems and methods to clamp an impeller to a compressor shaft
    9.
    发明授权
    Systems and methods to clamp an impeller to a compressor shaft 有权

    公开(公告)号：US11225973B2

    公开(公告)日：2022-01-18

    申请号：US16600670

    申请日：2019-10-14

    Applicant: TRANE INTERNATIONAL INC.

    Inventor： Mark W. Harrison ,  Jon Christopher Johnson ,  Todd W. Smith

    IPC: F04D17/12 ,  F04D29/051 ,  F04D29/62 ,  F04D25/06 ,  F04D29/26

    Abstract: Systems and methods to clamp an impeller on a shaft in a centrifugal compressor. The embodiments as disclosed herein may include clamping individual impeller independently to the shaft, which may reduce the tolerance stack-up effect of a plurality of impellers. The impeller can be clamped to the shaft by positioning, for example, a relatively stiff support (e.g. a shaft locknut) on a front side of the impeller. The impeller can also be clamped to the shaft by a relatively flexible support to compensate for e.g. thermal expansion/contraction of the impeller. The embodiments as disclosed herein are particularly suitable for a multi-stage impeller.

    Thrust bearing for HVAC compressor
    10.
    发明授权
    Thrust bearing for HVAC compressor 有权
    HVAC压缩机推力轴承

    公开(公告)号：US09574606B2

    公开(公告)日：2017-02-21

    申请号：US14454502

    申请日：2014-08-07

    Applicant: Trane International Inc.

    Inventor： Michael Gerard Benco ,  Mark W. Harrison

    IPC: F16C17/04 ,  F16C33/10 ,  F01D25/16

    CPC classification number: F16C33/1075 ,  F01D25/168 ,  F16C17/047 ,  F16C33/103 ,  F16C33/1045 ,  F16C33/1065 ,  F16C2360/42

    Abstract: Embodiments of a thrust bearing that may be used with a crankshaft of a HVAC compressor, particularly a HVAC compressor with a vertical or near-vertical placed crankshaft (e.g. a scroll compressor) are provided. The thrust bearing may generally include a bearing header and an insert. The insert may include an insert surface, which is configured to interact with a shaft surface of the crankshaft. The insert surface of the insert may include surface features that may help create flow behavior of the lubricant by a relative motion between the shaft surface of the crankshaft and the insert surface of the insert. The flow behavior of the lubricant may help separate the insert surface of the insert and the shaft surface of the crankshaft by the lubricant in operation to form the bearing, such as a hydrodynamic bearing.

    Abstract translation: 提供了可以与HVAC压缩机的曲轴，特别是具有竖直或近垂直放置的曲轴（例如涡旋压缩机）的HVAC压缩机一起使用的推力轴承的实施例。 推力轴承通常可以包括轴承头和插入件。 插入件可以包括插入表面，其被配置为与曲轴的轴表面相互作用。 插入件的插入表面可以包括表面特征，其可以通过曲轴的轴表面和插入件的插入表面之间的相对运动来帮助产生润滑剂的流动特性。 润滑剂的流动特性可以有助于在操作中通过润滑剂将插入件的插入表面和曲轴的轴表面分离以形成诸如流体动力轴承的轴承。

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