Injector device for an engine device, engine device, and air- and/or spacecraft

Patent metadata

Field	Value
Publication number	US-2022106928-A1
Application number	US-202117450897-A
Country	US
Kind code	A1
Filing date	Oct 14, 2021
Priority date	Apr 15, 2019
Publication date	Apr 7, 2022
Grant date	—

Abstract

An injector device for an engine device for introducing a fluidic, in particular a liquid, fuel and a fluid, in particular liquid, oxidizing agent into a combustion chamber of the engine device is provided. The injector device defines a longitudinal axis and comprises at least one first injection element, which is configured in the form of a first fluid channel for fluidically connecting a first collection space for the fluidic oxidizing agent and the combustion chamber, and at least one second injection element, which is configured in the form of a second fluid channel for fluidically connecting a second collection space for the fluidic fuel and the combustion chamber. At least one first resonator element is associated with the at least one first injection element and/or at least one second resonator element is associated with the at least one second injection element.

First claim

1 . An injector device for an engine device for introducing a fluidic, in particular a liquid, fuel and a fluidic, in particular liquid, oxidizing agent into a combustion chamber of the engine device, which injector device defines a longitudinal axis and comprises at least one first injection element, which is configured in the form of a first fluid channel for fluidically connecting a first collection space for the fluidic oxidizing agent and the combustion chamber, and at least one second injection element, which is configured in the form of a second fluid channel for fluidically connecting a second collection space for the fluidic fuel and the combustion chamber, wherein at least one first resonator element is associated with the at least one first injection element and/or wherein at least one second resonator element is associated with the at least one second injection element, and wherein the at least one first resonator element is adapted to an eigenfrequency of the associated at least one first injection element and/or in that the at least one second resonator element is adapted to an eigenfrequency of the associated at least one second injection element.

2 . The injector device in accordance with claim 1 , wherein
a) the at least one first resonator element is fluidically connected to the at least one first injection element and/or in that the at least one second resonator element is fluidically connected to the at least one second injector element
and/or
b) the at least one first resonator element comprises a first resonator cavity, which defines a first resonator volume, and wherein a first resonator channel fluidically connects the at least one first injection element and the first resonator cavity and/or wherein the at least one second resonator element comprises a second resonator cavity, which defines a second resonator volume, and in that a second resonator channel fluidically connects the at least one second injection element and the second resonator cavity, wherein in particular the first resonator channel defines a first resonator channel volume and wherein the first resonator channel volume is smaller than the first resonator volume and/or wherein the second resonator channel defines a second resonator channel volume and wherein the second resonator channel volume is smaller than the second resonator volume,
and/or
the first resonator cavity and/or the second resonator cavity is configured in that form of a hollow cylinder, a hollow cuboid, or a hollow sphere.

3 . The injector device in accordance with claim 1 , wherein the at least one first injection element defines a first injection element longitudinal axis and/or wherein the at least one second injection element defines a second injection element longitudinal axis, wherein in particular the first injection element longitudinal axis and/or the second injection element longitudinal axis extend in parallel to the longitudinal axis.

4 . The injector device in accordance with claim 1 , wherein
a) the at least one first resonator element defines a first resonator element longitudinal axis and/or wherein the at least one second resonator element defines a second resonator element longitudinal axis,
wherein in particular the first injection element longitudinal axis and the first resonator element longitudinal axis extend transversely, in particular perpendicularly, to one another and/or wherein the second injection element longitudinal axis and the second resonator element longitudinal axis extend transversely, in particular perpendicularly, to one another,
and/or
b) the at least one first injection element and the at least one second injection element are arranged or formed coaxially to one another.

5 . The injector device in accordance with claim 1 , wherein the at least one first resonator element and the first collection space are fluidically connected to one another by way of a first flushing channel and/or wherein the at least one second resonator element and the second collection space are fluidically connected to one another by way of a second flushing channel.

6 . The injector device in accordance with claim 5 , wherein
a) the at least one first flushing channel defines a first flushing channel longitudinal axis and/or wherein the at least one second flushing channel defines a second flushing channel longitudinal axis,
wherein in particular the first flushing channel longitudinal axis and the longitudinal axis extend in parallel or substantially in parallel to one another and/or wherein the second flushing channel longitudinal axis and the longitudinal axis extend in parallel or substantially in parallel to one another,
and/or
b) a first flushing channel cross-sectional area defined by the at least one first flushing channel is smaller than a first resonator channel cross-sectional area defined by the first resonator channel and/or wherein a second flushing channel cross-sectional area defined by the at least one second flushing channel is smaller than a second resonator channel cross-sectional area defined by the second resonator channel.

7 . The injector device in accordance claim 1 , wherein
a) the at least one first resonator element and/or wherein the at least one second resonator element is configured in the form of a Helmholtz resonator or in the form of a λ/4 resonator
and/or
b) the at least one first resonator element is associated with at least one first injection element and/or wherein the at least one second resonator element is associated with at least one second injection element.

8 . The injector device in accordance with claim 1 , wherein the injector device comprises a plurality of first injection elements and/or a plurality of second injection elements,
wherein in particular the first resonator elements associated with the plurality of first injection elements are adapted to different eigenfrequencies of the plurality of first injection elements and/or wherein the second resonator elements associated with the plurality of second injection elements are adapted to different eigenfrequencies of the plurality of second injection elements, wherein further in particular the first resonator elements have different forms and/or different first resonator volumes and/or wherein the second resonator elements have different forms and/or different second resonator volumes.

9 . The injector device in accordance with claim 1 , wherein the at least one first resonator element) is arranged or formed in the region of an inlet of the at least one first injection element facing in the direction toward the first collection space and/or wherein the at least one second resonator element is arranged or formed in the region of an inlet of the at least one second injection element facing in the direction toward the second collection space.

10 . The injector device in accordance with claim 1 , wherein the injector device comprises a first injector plate and a second injector plate, wherein the at least one first resonator elements are arranged or formed in the first injector plate, and/or wherein the at least one second resonator elements are arranged or formed in the second injector plate.

11 . The injector device in accordance with claim 10 , wherein
a) the first injector plate and the second injector plate are arranged or formed in parallel to one another, in particular transversely to the longitudinal axis
and/or
b) that the second collection space is arranged or formed between the first injector plate and the second injector plate
and/or
c) the first injector plate is configured in the form of a throttle plate and wherein a first throttle element is associated with the at least one first inj

Assignees

• Deutsch Zentr Luft & Raumfahrt

Inventors

• Armbruster Wolfgang
• Hardi Justin
• Oschwald Michael
• Miene Yannik
• Suslov Dmitry

Classifications

• F02K9/52

  Injectors · CPC title

• F23R2900/00014

  Reducing thermo-acoustic vibrations by passive means, e.g. by Helmholtz resonators · CPC title

• F23R3/28 Primary

  characterised by the fuel supply (burners F23D) · CPC title

• Y02E20/34

  Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery · CPC title

• F23L7/007

  Supplying oxygen or oxygen-enriched air · CPC title