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。