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DE3618449A1 - Turbocharger with electrical auxiliary drive - Google Patents

Turbocharger with electrical auxiliary drive

Info

Publication number
DE3618449A1
DE3618449A1 DE19863618449 DE3618449A DE3618449A1 DE 3618449 A1 DE3618449 A1 DE 3618449A1 DE 19863618449 DE19863618449 DE 19863618449 DE 3618449 A DE3618449 A DE 3618449A DE 3618449 A1 DE3618449 A1 DE 3618449A1
Authority
DE
Germany
Prior art keywords
electrical
auxiliary drive
fed
drive
generator
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Withdrawn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
DE19863618449
Other languages
German (de)
Inventor
Erich Dr Mont Zimmermann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19863618449 priority Critical patent/DE3618449A1/en
Publication of DE3618449A1 publication Critical patent/DE3618449A1/en
Withdrawn legal-status Critical Current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
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/02—Drives of pumps; Varying pump drive gear ratio
    • F02B39/12—Drives characterised by use of couplings or clutches therein
    • 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
    • F02B37/005—Exhaust driven pumps being combined with an exhaust driven auxiliary apparatus, e.g. a ventilator
    • 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
    • F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
    • F02B37/10—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump at least one pump being alternatively or simultaneously driven by exhaust and other drive, e.g. by pressurised fluid from a reservoir or an engine-driven pump
    • 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
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/02—Drives of pumps; Varying pump drive gear ratio
    • F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
    • F02B39/10—Non-mechanical drives, e.g. fluid drives having variable gear ratio electric
    • 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)
  • Supercharger (AREA)

Abstract

An electrical auxiliary drive coupled to a turbo compressor bridges its flat spot at low speeds of the internal combustion engine. Above the critical speed the auxiliary drive can be switched off or can be used for generating current.

Description

ErläuterungenExplanations 1. Stand der Technik1. State of the art

Normale Abgasturbolader von Verbrennungsmotoren, insbesondere wie sie in Fahrzeugantrieben ohne besonderen Luftzwischenspeicher verwendet werden, zeigen im unteren Drehzahlbereich des Motors bis ca. 2000 U/min. ein Leistungsloch wie schematisch aus Bild 1 hervorgeht. Mit der ungenügenden Ladeleistung korreliert das Leistungsverhalten des Hauptantriebes. Durch aufwendige konstruktive Maßnahmen (VW, Wankel etc.) sind neuerdings die kritischen Drehzahlen erniedrigt worden, das Problem ist jedoch unverändert aktuell.Normal exhaust gas turbochargers of internal combustion engines, in particular as used in vehicle drives without a special air buffer, show up to approx. 2000 rpm in the lower engine speed range. a performance hole as shown schematically in Figure 1. The performance behavior of the main drive correlates with the insufficient charging power. The critical speeds have recently been reduced by complex design measures (VW, Wankel etc.), but the problem is still topical.

Erfindungsgemässe VerbesserungenImprovements according to the invention

Erfindungsgemäß wird eine erhebliche Verbesserung der ungenügenden Ladeleistung eines Turboverdichters dadurch erreicht, daß der bei niedriger Drehzahl des Verbrennungsmotors ungenügende Abgasdruck und -menge zu keiner ausreichenden Turboleistung genügen und unabhängig davon durch den elektrischen Hilfsantrieb sofort eine hohe Ladeleistung verfügbar ist. Für diese Systeme genügen daher einfache Gasturbinen ohne besondere Dichtprobleme.According to the invention, a significant improvement in the insufficient Charging performance of a turbocompressor is achieved in that the insufficient exhaust gas pressure at low engine speed and quantity do not suffice for sufficient turbo power and are independent immediately high due to the electric auxiliary drive Charging power is available. Simple systems are therefore sufficient for these systems Gas turbines without special sealing problems.

Die üblichen Turbolader fördern bei hoher Drehzahl wesentlich mehr Ladeluft als benötigt wird. Daher kann ein Teil der Turbinenleistung für die Stromerzeugung verwendet werden und der Stromverbrauch des Hilfsantriebes zumindest ausgeglichen werden. Bei ausreichender Dimensionierung der Turbine kann die gesamte Bordnetzstromerzeugung mittels Abgasturbine erfolgen. Damit kann der Kraftstoffverbrauch des Verbrennungsmotors bis zu 5% gesenkt werden.The usual turbochargers deliver much more at high speeds Charge air as needed. Therefore, part of the turbine power be used for power generation and the power consumption of the Auxiliary drive are at least balanced. With sufficient dimensioning the turbine can use the entire electrical system power generation Exhaust gas turbine take place. This can reduce the fuel consumption of the internal combustion engine can be reduced by up to 5%.

Wird die Zuschaltung des elektrischen Hilfsantriebes mit dem Beschleunigungsgeber gekoppelt, etwa in Form eines kick down, erfolgt die hohe Beschleunigung nur bei Bedarf und entsprechender Vorgabe.Is the connection of the electric auxiliary drive with the accelerometer coupled, for example in the form of a kick down, the high occurs Acceleration only if necessary and according to the given specifications.

Ferner kann durch Anwendung der erfindungsgemässen Vorrichtung auch der Vorgang des Anlassens von Verbrennungsmotoren gefördert werden.Furthermore, by using the device according to the invention the process of starting internal combustion engines are encouraged.

Claims (4)

1. Vorrichtung und Schaltung zum:
Ausgleich der unzureichenden Antriebskraft im unteren Drehzahlbereich von Abgasturbinen zur Ladeluftverdichtung bei Verbrennungsmotoren (Turboverdichter) insbesondere für Fahrzeugantriebe dadurch gekennzeichnet, dass die Turbine mit einem elektrischen Hilfsantrieb gekoppelt ist und dieser auf Anforderung im unteren Drehzahlbereich die Turbine unterstützt bis zum Erreichen der kritischen Drehzahl.1. Device and circuit for:
Compensation for the insufficient driving force in the lower speed range of exhaust gas turbines for charge air compression in internal combustion engines (turbocompressors), in particular for vehicle drives, characterized in that the turbine is coupled to an electrical auxiliary drive and this, on request, supports the turbine in the lower speed range until the critical speed is reached. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der elektrische Hilfsantrieb nach Überschreiten der kritischen Drehzahl vom Turboverdichter abgekoppelt wird:
  • .1 durch Freilauf,
  • .2 durch Kupplung mit mechanischem, pneumatischem oder elektrischem Antrieb.
2. Device according to claim 1, characterized in that the electrical auxiliary drive is uncoupled from the turbocompressor after the critical speed has been exceeded:
  • .1 by free running,
  • .2 by coupling with mechanical, pneumatic or electrical drive.
3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der elektrische Hilfsmotor nach Überschreiten der kritischen Drehzahl nicht abgekoppelt sondern als Generator weiterbetrieben wird und der erzeugte Strom:
  • .1 in das allgemeine Bordnetz eingespeist wird,
  • .2 in ein gesondertes Bordnetz mit eigenem Eletrospeicher eingespeist wird,
  • .3 in das allgemeine Bordnetz eingespeist wird und der übliche Generator mit direktem mechanischen Antrieb vom Verbrennungsmotor entfällt.
3. Apparatus according to claim 1, characterized in that the electric auxiliary motor is not uncoupled after exceeding the critical speed but is operated as a generator and the current generated:
  • .1 is fed into the general electrical system,
  • .2 is fed into a separate on-board network with its own electrical storage,
  • .3 is fed into the general electrical system and the usual generator with direct mechanical drive from the internal combustion engine is omitted.
4. Vorrichtung nach Anspruch 1 u. 2 dadurch gekennzeichnet, daß Motor und Generator in getrennter Ausführung vorliegen.4. The device of claim 1 u. 2 characterized in that engine and Generator is available in a separate version.
DE19863618449 1986-05-31 1986-05-31 Turbocharger with electrical auxiliary drive Withdrawn DE3618449A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863618449 DE3618449A1 (en) 1986-05-31 1986-05-31 Turbocharger with electrical auxiliary drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863618449 DE3618449A1 (en) 1986-05-31 1986-05-31 Turbocharger with electrical auxiliary drive

Publications (1)

Publication Number Publication Date
DE3618449A1 true DE3618449A1 (en) 1987-12-03

Family

ID=6302097

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863618449 Withdrawn DE3618449A1 (en) 1986-05-31 1986-05-31 Turbocharger with electrical auxiliary drive

Country Status (1)

Country Link
DE (1) DE3618449A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2365065A (en) * 2000-07-28 2002-02-13 Visteon Uk Ltd Supercharging i.c. engines
GB2395231A (en) * 2002-11-16 2004-05-19 Mechadyne Plc Turbocharger with an attached electric motor
EP1431542A1 (en) * 2002-12-20 2004-06-23 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Method of operation of a vehicle electrical system with electrically assisted turbocompressor
US6814042B2 (en) 2000-07-28 2004-11-09 Visteon Global Technologies, Inc. Air intake arrangement for an internal combustion engine
US6889672B2 (en) 2000-07-28 2005-05-10 Visteon Global Technologies, Inc. Air intake arrangement for an internal combustion engine
US6892713B2 (en) 2000-07-28 2005-05-17 Visteon Global Technologies, Inc. Air intake arrangement for an internal combustion engine
US6920867B2 (en) 2000-07-28 2005-07-26 Visteon Global Technologies, Inc. Air intake arrangement for an internal combustion engine
US6938614B2 (en) 2000-07-28 2005-09-06 Visteon Global Technologies, Inc. Air intake arrangement an internal combustion engine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2365065A (en) * 2000-07-28 2002-02-13 Visteon Uk Ltd Supercharging i.c. engines
GB2365068A (en) * 2000-07-28 2002-02-13 Visteon Global Tech Inc Supercharging i.c. engines
US6814042B2 (en) 2000-07-28 2004-11-09 Visteon Global Technologies, Inc. Air intake arrangement for an internal combustion engine
US6889672B2 (en) 2000-07-28 2005-05-10 Visteon Global Technologies, Inc. Air intake arrangement for an internal combustion engine
US6892713B2 (en) 2000-07-28 2005-05-17 Visteon Global Technologies, Inc. Air intake arrangement for an internal combustion engine
US6920867B2 (en) 2000-07-28 2005-07-26 Visteon Global Technologies, Inc. Air intake arrangement for an internal combustion engine
US6938614B2 (en) 2000-07-28 2005-09-06 Visteon Global Technologies, Inc. Air intake arrangement an internal combustion engine
GB2395231A (en) * 2002-11-16 2004-05-19 Mechadyne Plc Turbocharger with an attached electric motor
EP1431542A1 (en) * 2002-12-20 2004-06-23 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Method of operation of a vehicle electrical system with electrically assisted turbocompressor

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