公开(公告)号：NO20111588A1

公开(公告)日：2011-11-29

申请号：NO20111588

申请日：2011-11-21

Applicant: GEN ELECTRIC

Inventor： KOTHNUR VASANTH ,  ANDERSON DAVID DELOYD ,  GHASRIPOOR FARSHAD ,  DREXEL MICHAEL V ,  STEEN THOMAS ,  DEO HRISHIKESH VISHVAS

IPC: F04C2/16 ,  F01C21/02 ,  F04C13/00

Abstract: In a pump system, a process fluid is directed into inlet chambers of a pump casing at an inlet pressure, and a plurality of rotors disposed inside the pump casing are rotated to pump the process fluid from the inlet chambers to an outlet chamber located between the inlet chambers, wherein the process fluid in the outlet chambers is at an outlet pressure. The process fluid is directed from the outlet chamber to a separator configured to separate particulate matter from the process fluid, and a portion of separated process fluid is directed from the separator to a gear chamber of the pump. Pump bearings are lubricated with the portion of separated process fluid from the gear chamber. Some of the portion of the separated process fluid from the pump bearing is leaked to the inlet chambers via rotor shrouds to reduce accumulation of particulate matter in the inlet chambers.

公开(公告)号：NO20111589L

公开(公告)日：2010-11-29

申请号：NO20111589

申请日：2011-11-21

Applicant: GEN ELECTRIC

Inventor： KOTHNUR VASANTH ,  ANDERSON DAVID DELOYD ,  GHASRIPOOR FARSHAD ,  DREXEL MICHAEL V ,  STEEN THOMAS ,  DEO HRISHIKESH VISHVAS

IPC: F04C2/16 ,  F04C11/00 ,  F04C13/00 ,  F04C15/00

Abstract: A pump system includes inlet chambers, an outlet chamber, and rotors disposed inside the inlet chambers and the outlet chamber to pump a process fluid from the inlet chambers to the outlet chamber and to direct the process fluid to a separator. A gear chamber is configured to receive a portion of the process fluid from the separator. First and second sets of pump bearings are coupled to the rotors and lubricated by the portion of the process fluid flowing from the gear chamber. A conduit is configured to direct the portion of the process fluid from the pump bearings back to the gear chamber. Some of the portion of the process fluid lubricating the pump bearings is permitted to leak to the inlet chambers. Additional process fluid is continually added to the portion of the process fluid to compensate for fluid leaking to the inlet chambers.

公开(公告)号：CA2686004A1

公开(公告)日：2010-06-03

申请号：CA2686004

申请日：2009-11-19

Applicant: GEN ELECTRIC

Inventor： VARANASI KRIPA KIRAN ,  GHASRIPOOR FARSHAD ,  DENG TAO ,  CORRATIYIL BALA ,  BHATE NITIN ,  STEEN THOMAS LOWELL ,  MAHAJAN SANKET SAHEBRAO

IPC: F16L59/02 ,  F01C21/06 ,  F01M5/00 ,  F01P11/08 ,  F02C7/24

公开(公告)号：DE102004055760A1

公开(公告)日：2005-06-16

申请号：DE102004055760

申请日：2004-11-18

Applicant: GEN ELECTRIC

Inventor： COUTURE BERNARD ARTHUR ,  GHASRIPOOR FARSHAD ,  KOWALCZYK MARK WILLIAM

IPC: F01D11/08 ,  F01D5/20 ,  F01D11/00 ,  F01D11/02 ,  F01D11/12 ,  F02C7/28

Abstract: A rotary machine includes a rotatable rotor, buckets radially mounted on and spaced apart about the rotor, a stationary stator/casing disposed about and radially outward from the rotor defining an annular gap between the casing and tips of the buckets, and an abradable seal member provided to the bucket tip portions and disposed within the annular gap such that during differential growth of the rotor and buckets relative to the casing the seal member abrades in response to contact with a base seal member provided to the stator casing. Thereby, clearance between the stator casing and bucket tips is minimized between the moving bucket tips with the stator casing.