EP0971105A3 - Device for diminishing the IR-signature from outlets of hot air on the outside surface of movable objects - Google Patents

Device for diminishing the IR-signature from outlets of hot air on the outside surface of movable objects Download PDF

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Publication number
EP0971105A3
EP0971105A3 EP99109666A EP99109666A EP0971105A3 EP 0971105 A3 EP0971105 A3 EP 0971105A3 EP 99109666 A EP99109666 A EP 99109666A EP 99109666 A EP99109666 A EP 99109666A EP 0971105 A3 EP0971105 A3 EP 0971105A3
Authority
EP
European Patent Office
Prior art keywords
signature
diminishing
outlets
hot air
outside surface
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.)
Withdrawn
Application number
EP99109666A
Other languages
German (de)
French (fr)
Other versions
EP0971105A2 (en
Inventor
Walter Dr.-Ing. Czarnetzki
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.)
Rheinmetall Landsysteme GmbH
Original Assignee
Henschel Wehrtechnik 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 Henschel Wehrtechnik GmbH filed Critical Henschel Wehrtechnik GmbH
Publication of EP0971105A2 publication Critical patent/EP0971105A2/en
Publication of EP0971105A3 publication Critical patent/EP0971105A3/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H7/00—Armoured or armed vehicles
    • F41H7/02—Land vehicles with enclosing armour, e.g. tanks
    • F41H7/03—Air-pressurised compartments for crew; Means for preventing admission of noxious substances, e.g. combustion gas from gun barrels, in crew compartments; Sealing arrangements
    • F41H7/035—Gratings for ventilation openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/12—Filtering, cooling, or silencing cooling-air

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Exhaust Silencers (AREA)

Abstract

Eine Vorrichtung zur Verminderung der IR-Signatur ortsveränderlicher Objekte, vzw. von Landfahrzeugen, soll derart weiterentwickelt werden, daß eine Verminderung der IR-Signatur an Warmluftaustrittsbereichen der Außenfläche der Objekte, insbesondere von Austrittsbereichen aufgeheizter Kühlluft, erreicht wird.A device for reducing the IR signature portable objects, vzw. of land vehicles be developed in such a way that a reduction in the IR signature at warm air outlet areas of the outer surface of the Objects, especially those heated by exit areas Cooling air is reached.

Erfindungsgemäß ist hierfür im Warmluftaustrittsbereich (3) ein Luftführungselement (4) vorgesehen. Dieses weist einen innenliegenden, mit einem gasförmigen Stoff gefüllten Hohlraum (8) auf, der von einer Wandung umgeben ist, in der Öffnungen (10) vorgesehen sind, über die der gasförmige Stoff auf die Außenfläche (12) des Luftführungselementes (4) gelangt, wo er eine thermische Isolationsschicht bildet.

Figure 00000001
According to the invention, an air guide element (4) is provided for this in the warm air outlet area (3). This has an internal cavity (8) filled with a gaseous substance, which is surrounded by a wall in which openings (10) are provided through which the gaseous substance reaches the outer surface (12) of the air guiding element (4), where it forms a thermal insulation layer.
Figure 00000001
EP99109666A 1998-05-15 1999-05-15 Device for diminishing the IR-signature from outlets of hot air on the outside surface of movable objects Withdrawn EP0971105A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998121881 DE19821881C2 (en) 1998-05-15 1998-05-15 Device for reducing the IR signature of hot air outlet areas of the outer surface of portable objects
DE19821881 1998-05-15

Publications (2)

Publication Number Publication Date
EP0971105A2 EP0971105A2 (en) 2000-01-12
EP0971105A3 true EP0971105A3 (en) 2000-10-18

Family

ID=7867917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99109666A Withdrawn EP0971105A3 (en) 1998-05-15 1999-05-15 Device for diminishing the IR-signature from outlets of hot air on the outside surface of movable objects

Country Status (2)

Country Link
EP (1) EP0971105A3 (en)
DE (1) DE19821881C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005018844A1 (en) * 2005-04-22 2006-10-26 Bundesrepublik Deutschland, vertreten durch das Bundesministerium der Verteidigung, dieses vertreten durch den Präsidenten des Bundesamtes für Wehrtechnik und Beschaffung Camouflage cover for objects that are subject to potential military threat e.g. air attack has outer inflatable sections over stealth radar cover
DE102013107365C5 (en) * 2013-07-11 2021-03-25 Krauss-Maffei Wegmann Gmbh & Co. Kg Laser armor
DE102013107364B4 (en) * 2013-07-11 2015-01-22 Krauss-Maffei Wegmann Gmbh & Co. Kg laser armor
FR3041092B1 (en) 2015-09-15 2017-09-01 Nexter Systems BLINDED AERATION GRID

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118146A (en) * 1976-08-11 1978-10-03 United Technologies Corporation Coolable wall
FR2397521A1 (en) * 1977-07-11 1979-02-09 Pusch Gunter METHOD AND DEVICE FOR OCCULTATION OF INFRARED RADIATIONS FROM HOT GAS OUTLET POINTS, SUCH AS THE EXHAUST TIPS OF INTERNAL COMBUSTION ENGINES
DE3147475A1 (en) * 1981-12-01 1983-07-28 Alfons Dr.rer.nat. 8000 München Aßfalg Process for the infrared camouflaging of hot disposal orifices of vehicles, appliances and fixed installations and device for carrying out the process
US4991797A (en) * 1989-01-17 1991-02-12 Northrop Corporation Infrared signature reduction of aerodynamic surfaces

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3225182A1 (en) * 1982-07-06 1984-01-12 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Armoured vehicle with an air-conducting system
DE3407570C1 (en) * 1984-03-01 1985-08-14 Thyssen Industrie Ag, 4300 Essen Cooling device for a cooler of the drive system of a vehicle
US4864819A (en) * 1985-06-03 1989-09-12 General Electric Company Exhaust system including protective arrangements
DE3817986A1 (en) * 1988-05-27 1989-12-07 Mtu Muenchen Gmbh GAS TURBINE SYSTEM WITH INTERCOOLING
DE4015304C2 (en) * 1990-05-12 1995-12-14 Krupp Ag Hoesch Krupp Panzergräting in sandwich construction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118146A (en) * 1976-08-11 1978-10-03 United Technologies Corporation Coolable wall
FR2397521A1 (en) * 1977-07-11 1979-02-09 Pusch Gunter METHOD AND DEVICE FOR OCCULTATION OF INFRARED RADIATIONS FROM HOT GAS OUTLET POINTS, SUCH AS THE EXHAUST TIPS OF INTERNAL COMBUSTION ENGINES
DE3147475A1 (en) * 1981-12-01 1983-07-28 Alfons Dr.rer.nat. 8000 München Aßfalg Process for the infrared camouflaging of hot disposal orifices of vehicles, appliances and fixed installations and device for carrying out the process
US4991797A (en) * 1989-01-17 1991-02-12 Northrop Corporation Infrared signature reduction of aerodynamic surfaces

Also Published As

Publication number Publication date
EP0971105A2 (en) 2000-01-12
DE19821881A1 (en) 2000-01-20
DE19821881C2 (en) 2002-11-14

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