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：US20180023569A1

公开(公告)日：2018-01-25

申请号：US15654027

申请日：2017-07-19

Applicant: TRANE INTERNATIONAL INC.

Inventor： Scott M. BRANCH ,  Eric S. MLSNA ,  Scott J. SMERUD

IPC: F04C23/00 ,  F01C17/06 ,  F25B31/00 ,  F04C27/00 ,  F25B1/04

CPC classification number: F04C23/008 ,  F01C17/066 ,  F04C18/0215 ,  F04C18/0284 ,  F04C27/005 ,  F04C2270/72 ,  F25B1/04 ,  F25B31/006

Abstract: A scroll member for a scroll compressor is disclosed. The scroll member includes a base member and a wrap member formed on a major surface of the base member. The wrap member includes a modified portion. The modified portion includes a base, a step, and a scallop. The base extends a first distance from the major surface. The step extends a second distance from the base. The scallop extends a third distance from the scallop. The scallop is located at a wrap surface of the wrap member. The wrap surface is disposed relatively away from the major surface relative to the step.

公开(公告)号：US20190113037A1

公开(公告)日：2019-04-18

申请号：US15783615

申请日：2017-10-13

Applicant: TRANE INTERNATIONAL INC.

Inventor： Scott M. BRANCH ,  Derrick LEPAK

IPC: F04C29/02 ,  F04C29/00

Abstract: A heating, ventilation, air conditioning, and refrigeration (HVACR) system including a scroll compressor is disclosed. The scroll compressor includes a compression mechanism having an orbiting scroll and a non-orbiting scroll aligned in meshing engagement. The scroll compressor also includes an electric motor. A bearing housing is disposed between the compression mechanism and the electric motor. A lubricant drain is formed in the bearing housing. The lubricant drain is disposed in a location that lubricant draining from the bearing housing via the lubricant drain is directed toward the electric motor.