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Concentric nozzles for enhanced mixing of fluids

A fluid and inner nozzle technology, applied in the direction of gas and gas/steam mixing, jet propulsion device, engine working fluid, etc., can solve the problems of expensive and expensive lip skin

Active Publication Date: 2020-03-20
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of these higher grade materials is not advisable as the higher grade materials are more expensive in their raw form and it is also more expensive to form lip skins from these materials

Method used

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  • Concentric nozzles for enhanced mixing of fluids
  • Concentric nozzles for enhanced mixing of fluids
  • Concentric nozzles for enhanced mixing of fluids

Examples

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Embodiment Construction

[0017] refer to Figures 1A-1C , which shows an object 110 for mixing power fluid with ambient fluid in the surrounding environment. Article 110 includes an inner nozzle 120 and an outer nozzle 130 surrounding inner nozzle 120 . These concentric nozzles 120 and 130 will be collectively referred to as the "first pair of nozzles".

[0018] Also refer to figure 2 . Article 110 further includes conduit 140 . Nozzles 120 and 130 extend from one side of conduit 140 . The first inlet 142 is located on the opposite side of the conduit 140 in axial alignment with the inner nozzle 120 . First inlet 142 is configured to allow ambient fluid to pass through conduit 140 to inner nozzle 120 and exit at orifice 122 of inner nozzle 120 (orifice 122 at figure 2 most clearly shown in ). The inner nozzle 120 may include a converging section at the first inlet 142 . In some embodiments, inner nozzle 120 may then have a downstream segment of uniform cross-section that terminates at orifice...

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PUM

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Abstract

The present invention relates to concentric nozzles for enhanced mixing of fluids. An article for mixing an ambient fluid with a motive fluid includes a conduit and thermally conductive concentric inner and outer nozzles extending from the conduit. The conduit is configured to supply the motive fluid to the outer nozzle and ambient fluid to the inner nozzle. The inner nozzle extends from the conduit further downstream than the outer nozzle.

Description

Background technique [0001] Aircraft may include nacelles for housing gas turbine engines. The forwardmost section of the nacelle is called the "lipskin". Conventional lip skins are made of aluminum. [0002] Aircraft can use high temperature and high pressure air to prevent ice from forming on the lip skin. Hot air may be injected into the lip skin cavity where it mixes with ambient air in the cavity to heat the lip skin. High temperature and high pressure air can be supplied from the compressor bleed port of the engine. [0003] Increasing the operating pressure and temperature of a gas turbine engine is highly desirable as it increases overall propulsion efficiency. However, problems can arise if operating temperatures approach or exceed the use point of certain grades of aluminum commonly used for nacelle lip skins. [0004] To overcome this problem, higher grade materials such as aluminum alloys and titanium can be used instead to prevent structural deformation of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64D15/04B01F23/10
CPCB64D15/04B64D33/02B64D2033/0233F02C7/047Y02T50/60F01D25/02F01D25/24F05D2210/40
Inventor J·K·斯哥诺博伦K·E·埃克森
Owner THE BOEING CO