公开(公告)号：US10995753B2

公开(公告)日：2021-05-04

申请号：US16154844

申请日：2018-10-09

申请人： Emerson Climate Technologies, Inc.

发明人： Jeffrey Lee Berning ,  Juan Esteban Catano-Montoya ,  Roy J. Doepker ,  Michael M. Perevozchikov

IPC分类号： F04C28/10 ,  F04C18/02 ,  F04C28/24 ,  F04C28/26 ,  F04C29/12

摘要： A compressor may include first and second scrolls, and an axial biasing chamber. Spiral wraps of the scrolls mesh with each other and form compression pockets including a suction-pressure compression pocket, a discharge-pressure compression pocket, and intermediate-pressure compression pockets. The axial biasing chamber may be disposed axially between the second end plate and a component. Working fluid disposed within the axial biasing chamber may axially bias the second scroll toward the first scroll. The second end plate includes outer and inner ports. The outer port is disposed radially outward relative to the inner port. The outer port may be open to a first one of the intermediate-pressure compression pockets and in selective fluid communication with the axial biasing chamber. The inner port may be open to a second one of the intermediate-pressure compression pockets and in selective fluid communication with the axial biasing chamber.