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EP1738112A1 - Amortissement de vibrations d'une chambre de combustion au moyen de resonateurs - Google Patents

Amortissement de vibrations d'une chambre de combustion au moyen de resonateurs

Info

Publication number
EP1738112A1
EP1738112A1 EP05732027A EP05732027A EP1738112A1 EP 1738112 A1 EP1738112 A1 EP 1738112A1 EP 05732027 A EP05732027 A EP 05732027A EP 05732027 A EP05732027 A EP 05732027A EP 1738112 A1 EP1738112 A1 EP 1738112A1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
resonators
prechamber
injection
damping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05732027A
Other languages
German (de)
English (en)
Other versions
EP1738112B1 (fr
Inventor
Chris MÄDING
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ArianeGroup GmbH
Original Assignee
Astrium GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Astrium GmbH filed Critical Astrium GmbH
Publication of EP1738112A1 publication Critical patent/EP1738112A1/fr
Application granted granted Critical
Publication of EP1738112B1 publication Critical patent/EP1738112B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M20/00—Details of combustion chambers, not otherwise provided for, e.g. means for storing heat from flames
    • F23M20/005—Noise absorbing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/9901—Combustion process using hydrogen, hydrogen peroxide water or brown gas as fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
    • F23R2900/00014—Reducing thermo-acoustic vibrations by passive means, e.g. by Helmholtz resonators

Definitions

  • the present invention relates to a device for damping vibrations of a combustion chamber, at least one resonator being connected to the combustion chamber in terms of vibration technology.
  • damping chambers are arranged in the area of the injection head in a fuel distribution chamber and are connected to the combustion chamber in terms of vibrations via passage channels.
  • the arrangement in the fuel distribution chamber which is used, for example, to distribute hydrogen, ensures that the damping chambers are actively cooled.
  • relatively complex design measures are necessary for this. Nevertheless, it cannot be ruled out that hot combustion chamber combustion gases will penetrate directly into the damping chambers via the passage channels and lead to impairment or even destruction of the damping chambers.
  • the object of the present invention is therefore to provide an improved possibility for damping vibrations of a combustion chamber with the aid of resonators.
  • the invention relates to a device for damping vibrations of a combustion chamber, at least one resonator being connected to the combustion chamber in terms of vibration technology.
  • the at least one resonator is connected to a prechamber in terms of vibration technology and the prechamber is connected to the combustion chamber in terms of vibration technology via at least one passage channel. It is thereby achieved that the resonator or resonators that are used for damping the vibrations are no longer directly connected to the combustion chamber or to the interior of the combustion chamber. Rather, there is only an indirect connection via the intermediate prechamber.
  • the resonators can thus be arranged in areas which are subject to less temperature stress or less temperature changes. Nevertheless, the vibrations of the combustion chamber can reach the resonators via the passage channel and the prechamber and thus the vibrations of the combustion chamber can be effectively damped.
  • a first further development of the invention provides that the combustion chamber adjoins an injection head with at least one injection element, which is designed to introduce a fuel flow into the combustion chamber, and the prechamber is arranged upstream of the at least one injection element.
  • a single fuel flow can be provided, which is fed to the combustion chamber.
  • Two or more fuel flows can also be provided, which are supplied to the combustion chamber by the injection elements and, if appropriate, are already mixed in or immediately after the injection elements.
  • the prechamber is arranged in an area through which at least one of the fuel flows passes before it flows through the injection element or elements.
  • the injection elements are located between the combustion chamber or the interior of the combustion chamber and the prechamber.
  • the combustion chamber adjoins an injection head with at least one injection element, which is designed for introducing a fuel flow into the combustion chamber, and the prechamber is arranged in terms of flow technology in the region of the at least one injection element.
  • the prechamber thus lies in an area through which at least one of the fuel flows passes while it flows through the injection element or elements.
  • the injection elements and the prechamber are arranged next to each other in terms of flow in front of the combustion chamber or the interior of the combustion chamber.
  • the prechamber can, in particular, be connected in terms of flow to a fuel flow before it reaches the interior of the combustion chamber.
  • the fuel flow is not only directed around a resonator as in the case of DE 34 32 607 A1, for example, but it reaches the interior of the resonator, so that the resonance volume of the resonator itself can be kept largely constant at the temperature of the fuel flow.
  • the resonator as well as the prechamber are connected to a gaseous fuel flow, since a particularly good vibration connection between the resonator and the combustion chamber can then be guaranteed via the fuel flow.
  • the passage channel is designed as part of an injection element. In principle, however, separate passage channels can also be provided, which guarantee a vibration connection between the interior of the combustion chamber and the prechamber.
  • the resonators can be designed, for example, as Helmholtz resonators or as ⁇ / 4 resonators. Such resonators are generally well known from the prior art.
  • FIGS. 1 to 4 A special exemplary embodiment of the present invention is explained below with reference to FIGS. 1 to 4 using the example of a rocket engine. Show it:
  • Fig. 1 Rocket engine with Helmholtz resonator in front of the injection head
  • Fig. 2 Rocket engine with ⁇ / 4 resonators in an injection head cover plate
  • Fig. 3 Rocket engine with double-row ⁇ / 4 resonators in front of the injection head
  • Fig. 4 Rocket engine with ⁇ / 4 resonators in the injection head
  • acoustic resonators known from the prior art cited at the beginning.
  • Helmoltz resonators Both types of resonators consist of small volumes which are connected directly to the chamber in the devices according to the prior art. Vibration energy is dissipated in these resonators when the excited frequency of the chamber matches the natural frequency of the resonator.
  • Resonators are narrow-band absorbers and therefore have to be tuned to the frequency to be damped.
  • Helmoltz resonators are used for damping in a wider frequency range compared to the ⁇ / 4 resonators, which have to be tuned to a discrete frequency.
  • Resonators arranged axially upward from the combustion chamber, ie counter to the direction of flow, in the area of the injection head form undesirable backflow zones in this area, as a result of which an additional heat flow occurs in the direction of the injection head, which can influence the stability of the injection head.
  • the present invention offers a resonator arrangement which is independent of the hot combustion gases and thus the temperature in the combustion chamber. At the same time, a negative influence on the arrangement of the injection elements and the combustion chamber cooling is avoided.
  • the invention is particularly applicable to main flow engines as well as other gaseous injection engines of one of two or more fuel components.
  • main flow engines gaseous exhaust gases from a fuel turbine are fed back into a fuel flow (main flow) and are passed together with the fuel flow into the combustion chamber.
  • main flow gaseous exhaust gases from a fuel turbine are fed back into a fuel flow (main flow) and are passed together with the fuel flow into the combustion chamber.
  • a gaseous fuel such as hydrogen.
  • the fuel is passed in liquid form through cooling channels of the rocket engine and converted into a gaseous state due to the heat absorption.
  • injection elements 4 are arranged, which serve to direct one or more fuel flows into the interior 9 of the combustion chamber 1.
  • the injection head 3 is delimited upstream by a cover plate 6.
  • the injection elements 4 are either tubular, but they can also be formed by a combination of tubes and one or more coaxial sleeves.
  • the injection elements 4 or the tubes or sleeves are connected to the injection plate 2 and / or the cover plate 6.
  • the main stream of a gaseous fuel and turbine exhaust gases (gas) enter a prechamber 7 in front of the injection head and are then passed through the injection elements 4 into the interior 9 of the combustion chamber 1.
  • FIG. 4 shows an expander cycle engine in which a gaseous fuel stream such as hydrogen (gH2) is passed into a prechamber 17 and from there via annular gaps 8 between a pipe 28 and a sleeve of a coaxial injection element 4 into the interior 9 reaches the combustion chamber.
  • a gaseous fuel stream such as hydrogen (gH2)
  • GSH2 hydrogen
  • a further, for example liquid, fuel flow such as liquid oxygen enters the interior 9 of the combustion chamber 1 via a further chamber 27 and the pipe 28.
  • the vibrations of the combustion chamber 1 according to the invention can also be damped by arranging resonators 5, 5a, 5b in the region of the prechambers 7, 17 so that they communicate with the prechamber 7, 17 in terms of flow.
  • the Helmholtz resonator 5 can be designed as a circumferential ring Chamber be formed in the wall of the prechamber 7, which is connected to the prechamber 7 via an annular passage gap, as shown in FIG. 1.
  • Fig. 2 shows an alternative embodiment, wherein ⁇ / 4 resonators 5 are arranged in the form of cylinders open on one side in the cover plate 6 of the injection head 3. As shown in FIG. 2, several ⁇ / 4 resonators 5 can be arranged uniformly distributed. In the case of FIG. 2, the ⁇ / 4 resonators 5 are arranged in a ring around the central axis of the cover plate 6.
  • FIG. 3 shows an arrangement of ⁇ / 4 resonators 5a, 5b in the wall of the prechamber 7.
  • the ⁇ / 4 resonators 5a, 5b are designed as bores in the wall of the prechamber 7.
  • These ⁇ / 4 resonators 5a, 5b can also be arranged in a uniformly distributed manner.
  • the ⁇ / 4 resonators 5a, 5b are arranged in two rings lying one above the other in the wall of the prechamber 7.
  • all the ⁇ / 4 resonators 5, 5a, 5b can in principle be of identical design in order to damp exactly one defined oscillation frequency.
  • the ⁇ / 4 resonators 5, 5a, 5b can preferably be designed differently, so that in each case one group of ⁇ / 4 resonators 5, 5a, 5b is adapted to a specific oscillation frequency.
  • the lower ⁇ / 4 resonators 5a are designed as shorter bores and are therefore adapted to higher oscillation frequencies than the upper ⁇ / 4 resonators 5b, which are designed as longer bores.
  • ⁇ / 4 resonators 5 are provided as bores in the wall of the injection head 3 in the region of a prechamber 7, which encloses the injection elements 4.
  • the ⁇ / 4 resonators 5 can be distributed uniformly, for example in a ring, in the wall of the injection head 3, and here too there can be several groups of ⁇ / 4 resonators 5 with different adaptation to different vibration frequencies.
  • gaseous fuel such as gH2 enters the pre-chamber 7 and is introduced into the interior 9 of the combustion chamber 1 via annular gaps 8.
  • This flow path of the gaseous fuel represents a vibration connection between the interior 9 of the combustion chamber 1 and the prechamber 7, analogous to the above explanations for FIGS. 1 to 3.
  • These vibrations thus reach the ⁇ / 4 resonators 5 in the wall the prechamber 7 and can be effectively damped there by the resonator effect of the ⁇ / 4 resonators 5.
  • the main advantage of the invention is the largely constant temperature of the gas in the resonators 5, 5a, 5b during the entire duration of operation of the engine. Furthermore, there is a simplification of the construction in the high-temperature region of the combustion chamber 1, since in the region of the wall of the combustion chamber 1 and in the injection plate, no further arrangements such as resonators need to be provided in addition to the usual cooling. In addition, the design according to the present invention enables a significantly higher number of resonator examples to be accommodated, since the individual exemplary embodiments according to FIGS.
  • Helmholtz resonators 5 and / or ⁇ / 4 resonators 5a, 5b in the wall of the prechamber 7 and / or ⁇ / 4 resonators 5 can be provided in the cover plate 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

L'invention concerne un dispositif d'amortissement de vibrations d'une chambre de combustion (1), au moins un résonateur (5, 5a, 5b) étant connecté de façon vibratoire à la chambre de combustion (1). Le résonateur (5, 5a, 5b) est par ailleurs connecté de façon vibratoire à une chambre de précombustion (7, 17) connectée de façon vibratoire à la chambre de combustion (1) par l'intermédiaire d'au moins un canal de passage (8, 18).
EP05732027.7A 2004-04-17 2005-04-07 Moteur de fusée avec amortissement de vibrations de la chambre de combustion au moyen de resonateurs Expired - Lifetime EP1738112B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004018725.8A DE102004018725B4 (de) 2004-04-17 2004-04-17 Dämpfung von Schwingungen einer Brennkammer durch Resonatoren
PCT/DE2005/000622 WO2005100858A1 (fr) 2004-04-17 2005-04-07 Amortissement de vibrations d'une chambre de combustion au moyen de resonateurs

Publications (2)

Publication Number Publication Date
EP1738112A1 true EP1738112A1 (fr) 2007-01-03
EP1738112B1 EP1738112B1 (fr) 2019-07-03

Family

ID=34964533

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05732027.7A Expired - Lifetime EP1738112B1 (fr) 2004-04-17 2005-04-07 Moteur de fusée avec amortissement de vibrations de la chambre de combustion au moyen de resonateurs

Country Status (4)

Country Link
US (1) US8033111B2 (fr)
EP (1) EP1738112B1 (fr)
DE (1) DE102004018725B4 (fr)
WO (1) WO2005100858A1 (fr)

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EP2187125A1 (fr) * 2008-09-24 2010-05-19 Siemens Aktiengesellschaft Dispositif et procédé destinés à l'amortissement d'oscillations de combustion
US8733106B2 (en) * 2011-05-03 2014-05-27 General Electric Company Fuel injector and support plate
WO2013043078A1 (fr) * 2011-09-22 2013-03-28 General Electric Company Capuchon de chambre de combustion pour amortissement de dynamiques à basse fréquence
US8532847B1 (en) * 2012-09-28 2013-09-10 Fukashi Andoh Vibration suppressing device for spacecraft
DE102013213860A1 (de) * 2013-07-16 2015-01-22 Siemens Aktiengesellschaft Brennerdüsenträger mit Resonatoren
US10605457B2 (en) 2014-05-19 2020-03-31 Siemens Aktiengesellschaft Burner arrangement with resonator
DE102015218687A1 (de) * 2015-09-29 2017-04-13 Siemens Aktiengesellschaft Brenneranordnung für eine Ringbrennkammer mit Resonatoren
DE102016209650B4 (de) 2016-06-02 2019-03-14 Arianegroup Gmbh Einspritzvorrichtung für ein raketentriebwerk
DE102017127831A1 (de) * 2017-11-24 2019-05-29 Arianegroup Gmbh Einspritzkopf für ein triebwerk, triebwerk und rakete
DE102019110258A1 (de) * 2019-04-15 2020-10-15 Deutsches Zentrum für Luft- und Raumfahrt e.V. Injektorvorrichtung für eine Triebwerksvorrichtung, Triebwerksvorrichtung und Luft- und/oder Raumfahrzeug
RU2738391C2 (ru) * 2019-04-30 2020-12-11 Акционерное общество "Государственный космический научно-производственный центр имени М.В. Хруничева" Камера сгорания
PL3916212T3 (pl) 2020-05-28 2023-02-20 Arianegroup Gmbh Element wtryskowy do silnika, płyta przednia do głowicy wtryskiwacza i sposób wytwarzania elementu wtryskowego
CN112746910A (zh) * 2020-10-29 2021-05-04 北京航天动力研究所 一种抑制高频不稳定燃烧的喷注器
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US12379108B2 (en) 2023-01-06 2025-08-05 Ge Vernova Infrastructure Technology Llc Method of operating gas turbine combustor with multiple fuel stages

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Also Published As

Publication number Publication date
WO2005100858A1 (fr) 2005-10-27
US8033111B2 (en) 2011-10-11
DE102004018725A1 (de) 2005-11-10
DE102004018725B4 (de) 2015-02-12
EP1738112B1 (fr) 2019-07-03
US20080245072A1 (en) 2008-10-09

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