公开(公告)号：AU2003212781A1

公开(公告)日：2003-09-02

申请号：AU2003212781

申请日：2003-01-28

Applicant: BRISTOL COMPRESSORS

Inventor： GOODNIGHT TOM EVANS ,  NARNEY JOHN K II ,  XIN RONGCHANG ,  LOPRETE JOE FRANK ,  CHUMLEY EUGENE KARL ,  HATZIKAZAKIS PANTELEIMON V ,  HUGUES ROBERT DESMOND ,  TRENT MARK RANDALL ,  SIMERLY TYRONE SCOTT ,  MONK DAVID T

IPC: F04B1/00 ,  F04B19/24 ,  F04B23/00 ,  F04B39/00 ,  F04B49/00 ,  F04B49/16 ,  F04B49/24 ,  F04C20060101 ,  F04C18/356 ,  F04C28/16 ,  F04C28/18 ,  F04C28/24 ,  F25B49/02 ,  F25B1/00

Abstract: A compressor for providing automatic capacity modulation is disclosed. The compressor comprises a compression chamber, a compressing member, a reexpansion area, a flow passage, a valve member, and a biasing member. The flow passage is in fluid communication with the compression chamber and the reexpansion area. In one position, the valve member permits flow through the flow passage and in a second position it prevents flow. The valve member is subjected to a first operating condition of fluid on one side and a second operating condition of the fluid on the other side. The biasing member exerts a biasing force on the valve member. When the first operating condition reaches a predetermined point relative to the second operating condition, the valve member moves and effects a change in the capacity of the compressor.