DE304388C - - Google Patents

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Publication number
DE304388C
DE304388C DENDAT304388D DE304388DA DE304388C DE 304388 C DE304388 C DE 304388C DE NDAT304388 D DENDAT304388 D DE NDAT304388D DE 304388D A DE304388D A DE 304388DA DE 304388 C DE304388 C DE 304388C
Authority
DE
Germany
Prior art keywords
compressor
turbine
exhaust gases
air
now
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.)
Active
Application number
DENDAT304388D
Other languages
German (de)
Publication of DE304388C publication Critical patent/DE304388C/de
Active legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)

Description

Es ist bereits bekannt, bei Verbrennungsmotoren die Abgase zum Treiben einer Turbine zu verwenden, wobei die Turbine ihrerseits einen in die Ansaugeluftleitung geschalteten Ventilator antreibt. Ferner ist es bereits bekannt, die Leistung von Flugmotoren bei wechselnder Höhenlage und Luftdichte dadurch konstant zu halten, daß man die-vom Motor angesaugte Luft vorher komprimiert.It is already known to use the exhaust gases for driving a turbine in internal combustion engines to use, with the turbine in turn connected to the intake air line Fan drives. Furthermore, it is already known to contribute to the performance of aircraft engines changing altitude and air density to keep constant by having the-vom Motor sucked in air previously compressed.

Die Erfindung bezieht sich nun ebenfalls auf Flugmotoren, bei denen die Leistung mit wechselnder Höhenlage konstant gehalten wird." Zu diesem Zwecke ist in die Ansaugeleitung ein Kompressor eingeschaltet, welcher durch eine Abgasturbine getrieben wird. Nun ist im allgemeinen das zum Betriebe der Turbine zur Verfügung stehende Druckgefälle um so größer, je geringer der Gegendruck der Atmosphäre ist. Der Erfindungsgedanke besteht nun darin, diesen Umstand zu benutzen, um die Leistung des Kompressors den jeweiligen Bedürfnissen anzupassen.The invention now also relates to aircraft engines, in which the power with changing altitude is kept constant. "For this purpose is in the suction line a compressor switched on, which is driven by an exhaust gas turbine. Now is in in general, the pressure gradient available to operate the turbine is all the greater, the lower the back pressure of the atmosphere. The idea of the invention now consists in to use this fact to adjust the performance of the compressor to the respective needs adapt.

Die baulichen Abmessungen von Abgasturbine Nund Kompjessor< sind so gewählt, daß in der Nähe der Erdoberfläche der Kompressor nur ganz langsam läuft und die Luft gar nicht oder fast gar nicht vorverdichtet wird. Nur eine. geringe Nutzleistung soll in diesem Falle der Kompressor liefern, damit er dem Motor die Ansaugearbeit abnimmt.The physical dimensions of the exhaust gas turbine and N Kompjessor <are chosen to be near the surface of the compressor is very slow and the air is not supercharged or not almost. Just one. In this case, the compressor should deliver low net power so that it does the suction work for the engine.

Steigt nun das Luftfahrzeug höher, so sinkt der Gegendruck, gegen den die Gase aus der Turbine austreten. Die antreibende Energie und damit die Umdrehungszahl von Turbine und .Kompressor wird dadurch größer. Der Kompressor liefert jetzt eine größere Kompression. Diese ist notwendig, weil die angesaugte Luft dünner geworden ist. Vermöge der selbsttätig erhöhten Kompressorleistung wird nun diese dünnere Luft wieder auf die volle Dichte von einer Atmosphäre gebracht und so eine gleichbleibende Füllung des Motors erzielt.Now if the aircraft rises higher, the counter pressure against which the gases from the decreases Turbine exit. The driving energy and thus the number of revolutions of the turbine and .Compressor becomes larger as a result. The compressor now provides more compression. This is necessary because the air drawn in has become thinner. Fortune of self-acting Increased compressor power will now bring this thinner air back to full density brought by one atmosphere and thus achieves a constant filling of the engine.

Sinkt das Luftfahrzeug wieder herab, so tritt selbsttätig der frühere Zustand wieder ein.If the aircraft descends again, the previous state automatically occurs again.

Claims (1)

Pa tent-Anspruch:Patent claim: Anlage für Flugmotoren, bei welchen die Abgase einen in die Ansaugeluftleitung geschalteten Kompressor mittels einer Türbine, antreiben, dadurch gekennzeichnet, daß die zur Erreichung einer gleichbleibenden Motorfüllung erforderliche Mehrleistung des Kompressors in größerer Höhe durch die weitergehende Expansion der Auspuffgase erreicht wird.System for aircraft engines, in which the exhaust gases are switched into the intake air line Drive the compressor by means of a door bar, characterized in that that the additional power of the required to achieve a constant engine filling Compressor at a greater height is achieved by the further expansion of the exhaust gases.
DENDAT304388D Active DE304388C (en)

Publications (1)

Publication Number Publication Date
DE304388C true DE304388C (en)

Family

ID=557993

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
DE (1) DE304388C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986006790A1 (en) * 1985-05-03 1986-11-20 Nordic Micro-Turbo Ab Device in turbo aggregates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986006790A1 (en) * 1985-05-03 1986-11-20 Nordic Micro-Turbo Ab Device in turbo aggregates

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