公开(公告)号：US09429042B2

公开(公告)日：2016-08-30

申请号：US14631945

申请日：2015-02-26

Applicant: ALSTOM Technology Ltd

Inventor： Franklin Marie Genin ,  Devis Tonon ,  Mirko Ruben Bothien ,  Douglas Anthony Pennell

IPC: F02C7/24 ,  F01D25/30 ,  F23R3/06

CPC classification number: F01D25/30 ,  F05D2220/32 ,  F05D2260/96 ,  F23R3/06 ,  F23R2900/00014

Abstract: An acoustic damping device is provided which includes at least one opening for a sealing gas to deflect a grazing gas flow away from the mouth of an acoustic damper.

Abstract translation: 提供了一种声阻尼装置，其包括用于密封气体的至少一个开口，以使放电气流偏离声阻尼器的口。

公开(公告)号：US09334804B2

公开(公告)日：2016-05-10

申请号：US14505564

申请日：2014-10-03

Applicant: ALSTOM Technology Ltd

Inventor： Mirko Ruben Bothien ,  Devis Tonon ,  Franklin Marie Genin ,  Douglas Anthony Pennell

IPC: F02C7/24 ,  F23M20/00 ,  F23R3/16

CPC classification number: F02C7/24 ,  F23M20/005 ,  F23R3/16 ,  F23R2900/00014

Abstract: An acoustic damper includes a neck and a damping volume. The neck has a mouth being in fluid connection with a chamber. The chamber is limited by an inner surface of at least one wall. The acoustic damper device includes a recess located between the mouth of the neck and the inner surface of the wall.

Abstract translation: 声阻尼器包括颈部和阻尼体积。 颈部具有与腔室流体连接的口。 该室由至少一个壁的内表面限制。 声阻尼装置包括位于颈部的口部和壁的内表面之间的凹部。

公开(公告)号：US20150113992A1

公开(公告)日：2015-04-30

申请号：US14523040

申请日：2014-10-24

Applicant: ALSTOM Technology Ltd

Inventor： Devis Tonon ,  Mirko Ruben Bothien ,  Franklin Marie Genin ,  Douglas Anthony Pennell

IPC: F02C7/24

CPC classification number: F02C7/24 ,  F05D2260/963 ,  F23M20/005 ,  F23R3/002 ,  F23R2900/00014

Abstract: The invention relates to a damper for reducing the pulsations in a chamber of a gas turbine. The damper includes a resonator cavity and a neck in flow communication with the resonator cavity and the chamber. The neck includes a mouth to communicate with the chamber. The air flow inside the chamber flows across the mouth of the neck. The neck is so configured that the longitudinal axis of its mouth is angled 0-90° relative to the direction of the air flow inside the chamber. The damper of this invention may effectively alleviate the detrimental effect of the grazing flow and thus it enables the placement of the damper also at locations where strong grazing flows are present.

Abstract translation: 本发明涉及一种用于减少燃气轮机室内的脉动的阻尼器。 阻尼器包括谐振器腔和与谐振器腔和腔室流动连通的颈部。 颈部包括与腔室通信的嘴。 室内的气流流过颈部的口。 颈部被配置成使得其嘴部的纵向轴线相对于腔室内的气流的方向成角度0-90°。 本发明的阻尼器可以有效地减轻放牧流的有害影响，从而能够将阻尼器放置在存在强放牧流动的地方。

公开(公告)号：US10228134B2

公开(公告)日：2019-03-12

申请号：US14742839

申请日：2015-06-18

Applicant: ALSTOM Technology Ltd

Inventor： Devis Tonon ,  Mirko Ruben Bothien

IPC: F23R3/00 ,  F01N1/00 ,  F01N1/02 ,  F23M20/00 ,  F23R3/44

Abstract: The present invention generally relates to a gas turbine and more in particular it is related to a damper assembly for a combustion chamber of a gas turbine. According to preferred embodiments, the present solution provides a damper assembly including protrusions on a wall of the neck. These protrusions result in a side wall reactance to the acoustic field that has the effect of decreasing the effective speed of sound in the neck. The decrease of the effective speed of sound in the neck is equivalent to an increase of the effective neck length.