公开(公告)号：US20170175641A1

公开(公告)日：2017-06-22

申请号：US15450357

申请日：2017-03-06

Applicant: DRESSER-RAND COMPANY

Inventor： Andrew J. Olsen ,  Ivar Austrem ,  Serkan Yildirim ,  Zheji Liu

IPC: F02C7/24 ,  F02C7/18 ,  F23R3/00 ,  F01D5/02 ,  F23R3/14 ,  F23R3/28 ,  F02C3/04 ,  F04D29/32

CPC classification number: F02C7/24 ,  F01D5/02 ,  F02C3/04 ,  F02C3/145 ,  F02C7/18 ,  F04D29/321 ,  F05D2220/32 ,  F05D2240/35 ,  F05D2240/60 ,  F05D2260/201 ,  F05D2260/96 ,  F05D2260/963 ,  F05D2270/14 ,  F23R3/002 ,  F23R3/06 ,  F23R3/14 ,  F23R3/286 ,  F23R3/54 ,  F23R3/60 ,  F23R2900/00014 ,  F23R2900/03041 ,  F23R2900/03042 ,  F23R2900/03044

Abstract: A gas turbine may include a rotatable shaft, a compressor disposed about the rotatable shaft and configured to output compressed air, and a combustor disposed about the rotatable shaft. The combustor may be configured to receive the compressed air and output high temperature compressed gas. The gas turbine may further include a power turbine disposed about the rotatable shaft and configured to receive the high temperature compressed gas, and a first liner defining a plurality of holes and disposed around the combustor. The power turbine may be configured to expand the high temperature compressed gas and rotate the rotatable shaft. The first liner may have a first end and a longitudinally opposite second end. The first end may be coupled to an inner surface of the casing at or adjacent an upstream end of the combustor and the second end may be substantially free from any connection with the casing.

公开(公告)号：US10386065B2

公开(公告)日：2019-08-20

申请号：US15515155

申请日：2015-09-18

Applicant: DRESSER-RAND COMPANY

Inventor： Zheji Liu

IPC: F23M20/00 ,  G10K11/172 ,  F02C7/24 ,  G10K11/00

Abstract: A system for attenuating acoustic energy in machines is provided. The system may include an inner tube disposed about a central axis, an outer tube disposed about the inner tube and the central axis, and a middle tube disposed about the central axis and between the inner tube and the outer tube. The system may also include a first annular ring extending radially from the outer tube and configured to couple the outer tube to the middle tube. The system may further include a second annular ring extending radially from the inner tube and configured to couple the inner tube to the outer tube, such that an acoustic resonator may be formed by the first annular ring, the second annular ring, a portion of the inner tube, a portion of the outer tube, and a portion of the middle tube.

公开(公告)号：US10062369B2

公开(公告)日：2018-08-28

申请号：US15644083

申请日：2017-07-07

Applicant: DRESSER-RAND COMPANY ,  King Fahd University of Petroleum & Minerals

Inventor： Samir N. Mekid ,  Muhammad A. Hawwa ,  Zheji Liu

IPC: F04D29/66 ,  G10K11/172 ,  F16L55/033 ,  G10K11/00 ,  F04D29/44 ,  F16L55/02

CPC classification number: G10K11/002 ,  F04D29/441 ,  F04D29/665 ,  F05D2250/51 ,  F05D2250/52 ,  G10K11/172

Abstract: An acoustic resonator assembly may include a first acoustic liner and a second acoustic liner. The first acoustic liner may define a first plurality of openings extending between first and second surfaces thereof. The second acoustic liner may be rotatably coupled to the first acoustic liner and at least one of the first acoustic liner and the second acoustic liner may be configured to rotate relative to each other to attenuate one or more frequencies of acoustic energy generated by working fluid flowing past the acoustic resonator assembly. The second acoustic liner may define a second plurality of openings extending between first and second surfaces thereof. A number of degrees of freedom of the acoustic resonator assembly may be varied by rotating the first acoustic liner and/or the second acoustic liner.

公开(公告)号：US20170309264A1

公开(公告)日：2017-10-26

申请号：US15644083

申请日：2017-07-07

Applicant: DRESSER-RAND COMPANY ,  King Fahd University of Petroleum & Minerals

Inventor： Samir N. Mekid ,  Muhammad A. Hawwa ,  Zheji Liu

IPC: G10K11/00 ,  G10K11/172 ,  F04D29/44 ,  F04D29/66

CPC classification number: G10K11/002 ,  F04D29/441 ,  F04D29/665 ,  F05D2250/51 ,  F05D2250/52 ,  G10K11/172

Abstract: An acoustic resonator assembly may include a first acoustic liner and a second acoustic liner. The first acoustic liner may define a first plurality of openings extending between first and second surfaces thereof. The second acoustic liner may be rotatably coupled to the first acoustic liner and at least one of the first acoustic liner and the second acoustic liner may be configured to rotate relative to each other to attenuate one or more frequencies of acoustic energy generated by working fluid flowing past the acoustic resonator assembly. The second acoustic liner may define a second plurality of openings extending between first and second surfaces thereof. A number of degrees of freedom of the acoustic resonator assembly may be varied by rotating the first acoustic liner and/or the second acoustic liner.