公开(公告)号：US20220056915A1

公开(公告)日：2022-02-24

申请号：US17453456

申请日：2021-11-03

Applicant: TRANE INTERNATIONAL INC.

Inventor： Mark W. Harrison ,  Jon Christopher Johnson

IPC: F04D17/12 ,  F04D29/68 ,  F04D29/44 ,  F04D29/46

Abstract: Centrifugal compressors can incorporate a side stream flow of intermediate pressure vapor between stages of that compressor. The side stream flow can be controlled by a side stream injection port controlled by a throttle ring disposed between stages of the compressor. The throttle ring can allow or obstruct flow through the side stream injection port. The throttle ring can extend and retract in a direction substantially perpendicular to the direction of flow from the first stage impeller to the second stage impeller. A method of operating a centrifugal compressor can include actuating a throttle ring by rotating a drive ring to adjust a flow of interstage fluid into the second stage impeller.

公开(公告)号：US20210340988A1

公开(公告)日：2021-11-04

申请号：US16863764

申请日：2020-04-30

Applicant: TRANE INTERNATIONAL INC.

Inventor： Rick T. James ,  Yuanjie Wu ,  Christopher Glen Thilges ,  Mark W. Harrison ,  Jon Christopher Johnson

IPC: F04D27/00 ,  F04D17/12

Abstract: Centrifugal compressors can incorporate a side stream flow of intermediate pressure vapor between stages of that compressor. The side stream flow can be controlled by a side stream injection port controlled by a capacity control valve that has a curved surface facing a flow of refrigerant from the first stage to the second stage. The capacity control valve can allow or obstruct flow through the side stream injection port. The capacity control valve can extend and retract in a direction substantially perpendicular to the direction of flow from the first stage impeller to the second stage impeller. The side stream injection port and the capacity control valve can be ring-shaped. The side stream injection port and the capacity control valve can allow at least some of the side stream to be introduced on a side of the capacity control valve opposite the curved surface.

公开(公告)号：US09845809B2

公开(公告)日：2017-12-19

申请号：US14413163

申请日：2013-07-08

Applicant: TRANE INTERNATIONAL INC.

Inventor： Mark W. Harrison

IPC: F16J15/02 ,  F04D29/08 ,  F01C21/10 ,  F04C27/00 ,  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.

公开(公告)号：US20170227268A1

公开(公告)日：2017-08-10

申请号：US15426237

申请日：2017-02-07

Applicant: TRANE INTERNATIONAL INC.

Inventor： Mark W. Harrison

IPC: F25B43/02 ,  F16N21/00 ,  F16N31/02 ,  F16N19/00

CPC classification number: F25B43/02 ,  F16N19/00 ,  F16N21/00 ,  F16N31/02 ,  F25B1/053 ,  F25B1/10

Abstract: A lubricant separator is disclosed. The lubricant separator can cause lubricant which is entrained with a heat transfer fluid (e.g., a lubricant—heat transfer fluid mixture) to coalesce and fall (e.g., via gravity) into a bottom portion of a lubricant tank assembly. The lubricant separator can also reduce a velocity of the lubricant—heat transfer fluid mixture as it enters the lubricant tank assembly. The velocity reduction can, for example, reduce an amount of splashing of the lubricant that occurs as the lubricant—heat transfer fluid mixture enters the lubricant tank assembly. The velocity reduction can also, for example, be relatively more conducive to lubricant droplets falling into the bottom portion of the lubricant tank assembly as the flow of the heat transfer fluid is provided to a heat transfer fluid return conduit of the lubricant tank assembly.