公开(公告)号：US20170350398A1

公开(公告)日：2017-12-07

申请号：US15611137

申请日：2017-06-01

Applicant: TRANE INTERNATIONAL INC.

Inventor： Scott M. BRANCH ,  Timothy S. HAGEN ,  Jerry A. Rood ,  Alberto SCALA

IPC: F04C29/12 ,  F25B1/047 ,  F04C18/16 ,  F25B49/02 ,  F04C27/00

CPC classification number: F04C29/12 ,  F04C18/16 ,  F04C27/00 ,  F04C28/10 ,  F25B1/047 ,  F25B49/022 ,  F25B2600/0262 ,  F25B2600/027

Abstract: A screw compressor includes a compressor housing defining a working chamber, the housing including a plurality of bores; a first rotor having helical threads, the first rotor being housed in a first of the plurality of bores; a second rotor having helical threads intermeshing with the helical threads of the first rotor, the second rotor being housed in a second of the plurality of bores; an inlet port that receives a fluid to be compressed; an outlet port that receives a compressed fluid; and an intermediate discharge port disposed between the compression chamber and the outlet port, the intermediate discharge port including a sealing member and a biasing mechanism, fluid flow being prevented between the compression chamber and the intermediate discharge port when in a flow-blocked state, and fluid flow being enabled from the compression chamber through the intermediate discharge port when in a flow-permitted state.

公开(公告)号：US11022122B2

公开(公告)日：2021-06-01

申请号：US15611137

申请日：2017-06-01

Applicant: TRANE INTERNATIONAL INC.

Inventor： Scott M. Branch ,  Timothy S. Hagen ,  Jerry A. Rood ,  Alberto Scala

IPC: F04C29/12 ,  F04C18/16 ,  F25B49/02 ,  F04C28/10 ,  F04C27/00 ,  F25B1/047

Abstract: A screw compressor includes a compressor housing defining a working chamber, the housing including a plurality of bores; a first rotor having helical threads, the first rotor being housed in a first of the plurality of bores; a second rotor having helical threads intermeshing with the helical threads of the first rotor, the second rotor being housed in a second of the plurality of bores; an inlet port that receives a fluid to be compressed; an outlet port that receives a compressed fluid; and an intermediate discharge port disposed between the compression chamber and the outlet port, the intermediate discharge port including a sealing member and a biasing mechanism, fluid flow being prevented between the compression chamber and the intermediate discharge port when in a flow-blocked state, and fluid flow being enabled from the compression chamber through the intermediate discharge port when in a flow-permitted state.

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.