公开(公告)号：US20230103065A1

公开(公告)日：2023-03-30

申请号：US17491159

申请日：2021-09-30

Applicant: TRANE INTERNATIONAL INC.

Inventor： Joseph E. Ziolkowski, JR. ,  Eric S. Mlsna

IPC: F04C18/02 ,  F04C29/12

Abstract: An asymmetric scroll compressor includes a compressor housing. An orbiting scroll member and a non-orbiting scroll member disposed within the compressor housing. The orbiting scroll member and the non-orbiting scroll member each includes a baseplate and a wrap extending from the baseplate. The orbiting scroll member and the non-orbiting scroll member intermeshed to form a plurality of compression pockets. A driveshaft affixed to the orbiting scroll member and configured to orbit the orbiting scroll member from a first orbital position to a second orbital position. A communication port disposed on the baseplate of one of the orbiting scroll member and the non-orbiting scroll such that: in the first orbital position, the communication port communicates with a first enclosed pocket of the plurality of compression pockets, and in the second orbital position, the communication port communicates with a second enclosed pocket of the plurality of compression pockets.

公开(公告)号：US10480513B2

公开(公告)日：2019-11-19

申请号：US15758253

申请日：2016-09-14

Applicant: TRANE INTERNATIONAL INC.

Inventor： Eric S. Mlsna

IPC: F04C29/12 ,  F25B1/04 ,  F04C28/16 ,  F04C18/02 ,  F04C23/00

Abstract: An intermediate discharge port in a scroll compressor and a method for controlling part-load efficiency of a scroll compressor are disclosed. The compressor includes a compressor housing; a non-orbiting scroll member and an orbiting scroll member forming a compression chamber; a discharge port for receiving a compressed fluid; and an intermediate discharge port fluidly connected between the compression chamber and the discharge port, the intermediate discharge port including a sealing member, fluid flow being prevented between the compression chamber and the discharge port through the intermediate discharge port when in a flow-blocked state, and fluid flow being enabled between the compression chamber and the discharge port through the intermediate discharge port when in a flow-permitted state.

公开(公告)号：US20250129783A1

公开(公告)日：2025-04-24

申请号：US18490952

申请日：2023-10-20

Applicant: TRANE INTERNATIONAL INC.

Inventor： Eric S. Mlsna

IPC: F04C29/02 ,  F04C18/02 ,  F25B31/00

Abstract: A compressor includes a lubricant pump and a shaft having a lubricant vent extending through the shaft. The vent has an outlet, which can be provided below a stator-rotor assembly of a motor of the compressor. The shaft can be used in a variable speed compressor to convey excess lubricant when the pump is over-supplying lubricant due to operation at speeds greater than the minimum speed. The vent can be positioned at a center of the shaft. The outlet of the vent can direct gas and/or lubricant onto windings of the stator so as to provide cooling.

公开(公告)号：US11761446B2

公开(公告)日：2023-09-19

申请号：US17491159

申请日：2021-09-30

Applicant: TRANE INTERNATIONAL INC.

Inventor： Joseph E. Ziolkowski, Jr. ,  Eric S. Mlsna

IPC: F04C29/12 ,  F04C18/02 ,  F01C1/02

CPC classification number: F04C29/12 ,  F01C1/0253 ,  F04C18/0253 ,  F04C18/0215

Abstract: An asymmetric scroll compressor includes a compressor housing. An orbiting scroll member and a non-orbiting scroll member disposed within the compressor housing. The orbiting scroll member and the non-orbiting scroll member each includes a baseplate and a wrap extending from the baseplate. The orbiting scroll member and the non-orbiting scroll member intermeshed to form a plurality of compression pockets. A driveshaft affixed to the orbiting scroll member and configured to orbit the orbiting scroll member from a first orbital position to a second orbital position. A communication port disposed on the baseplate of one of the orbiting scroll member and the non-orbiting scroll such that: in the first orbital position, the communication port communicates with a first enclosed pocket of the plurality of compression pockets, and in the second orbital position, the communication port communicates with a second enclosed pocket of the plurality of compression pockets.

公开(公告)号：US10851787B2

公开(公告)日：2020-12-01

申请号：US15746549

申请日：2016-07-21

Applicant: TRANE INTERNATIONAL INC.

Inventor： Eric S. Mlsna ,  Scott J. Smerud ,  Daniel R. Crum ,  Scott M. Branch

IPC: F04C29/02 ,  F04C23/00 ,  F01C21/04 ,  F04C18/02 ,  F25B31/00 ,  F01C21/02 ,  F25B1/10 ,  F25B31/02

Abstract: A bearing housing drain in a scroll compressor and method for controlling lubrication of a thrust bearing in the scroll compressor are disclosed. The compressor includes a compressor housing; a non-orbiting scroll member and an orbiting scroll member; an orbiting scroll hub having an upper end and a lower end, the lower end being disposed at a vertical elevation that is lower than the upper end; a thrust bearing; a lubricant sump; a housing drain cavity disposed within the compressor housing and configured to receive lubricant from the lubricant sump and to deliver the lubricant to the thrust bearing; and a bearing housing drain fluidly connected to the housing drain cavity and the lubricant sump.

公开(公告)号：US10738777B2

公开(公告)日：2020-08-11

申请号：US16306819

申请日：2017-06-02

Applicant: TRANE INTERNATIONAL INC.

Inventor： Daniel R. Crum ,  Eric S. Mlsna ,  Jerry A. Rood

IPC: F04C18/02 ,  F04C23/00 ,  F04C28/10 ,  F04C29/02 ,  F04C28/24

Abstract: A scroll compressor lubrication system and a scroll compressor are disclosed. The scroll compressor includes a capacity modulator, a lubricant opening, and a gas diverting passage. The capacity modulator is in fluid communication with compression pockets for selectively unloading gas from the pockets. The lubricant opening is in fluid communication with at least one bearing portion of the scroll compressor. Lubricant from the at least one bearing portion in the scroll compressor flows through the lubricant opening. The gas diverting passage includes an inlet and an outlet. The inlet of the gas diverting passage is in fluid communication with the capacity modulator, and the gas diverting passage extends below the lubricant opening such that gas from the outlet of the gas diverting passage can flow through a travel path of the lubricant that flows through the lubricant opening and entrains at least part of the lubricant to at least one bearing portion for lubrication.

公开(公告)号：US20190293070A1

公开(公告)日：2019-09-26

申请号：US16306819

申请日：2017-06-02

Applicant: TRANE INTERNATIONAL INC.

Inventor： Daniel R. Crum ,  Eric S. Mlsna ,  Jerry A. Rood

IPC: F04C18/02 ,  F04C29/02 ,  F04C23/00 ,  F04C28/10

Abstract: A scroll compressor lubrication system and a scroll compressor are disclosed. The scroll compressor includes a capacity modulator, a lubricant opening, and a gas diverting passage. The capacity modulator is in fluid communication with compression pockets for selectively unloading gas from the pockets. The lubricant opening is in fluid communication with at least one bearing portion of the scroll compressor. Lubricant from the at least one bearing portion in the scroll compressor flows through the lubricant opening. The gas diverting passage includes an inlet and an outlet. The inlet of the gas diverting passage is in fluid communication with the capacity modulator, and the gas diverting passage extends below the lubricant opening such that gas from the outlet of the gas diverting passage can flow through a travel path of the lubricant that flows through the lubricant opening and entrains at least part of the lubricant to at least one bearing portion for lubrication.