EP0131566A1 - Moteur a combustion avec un dispositif de suralimentation - Google Patents

Moteur a combustion avec un dispositif de suralimentation

Info

Publication number
EP0131566A1
EP0131566A1 EP19830900485 EP83900485A EP0131566A1 EP 0131566 A1 EP0131566 A1 EP 0131566A1 EP 19830900485 EP19830900485 EP 19830900485 EP 83900485 A EP83900485 A EP 83900485A EP 0131566 A1 EP0131566 A1 EP 0131566A1
Authority
EP
European Patent Office
Prior art keywords
mixture
combustion engine
exhaust gas
internal combustion
gas turbocharger
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Withdrawn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
EP19830900485
Other languages
German (de)
English (en)
Inventor
Robert Söllner
Günther Burgstaller
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.)
Innio Jenbacher GmbH and Co OG
Original Assignee
Jenbacher Werke AG
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 Jenbacher Werke AG filed Critical Jenbacher Werke AG
Publication of EP0131566A1 publication Critical patent/EP0131566A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
    • F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
    • F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure

Definitions

  • the invention relates to an internal combustion engine with a device for pre-compressing an ignitable mixture of the air required for combustion and a gaseous or nebulous fuel.
  • an exhaust gas turbocharger is used for the pre-compression of the mixture, the temperature of all parts coming into contact with the mixture being kept below the ignition temperature of the mixture.
  • a particular advantage of the invention over a device according to DE-PS 733 227 is that the control of the system is possible by simply throttling the mixture immediately before the inlet into the cylinder or the cylinder bank of the internal combustion engine.
  • the reduction in the mixture supply leads to a Reduction of the turbine power and thus to a reduced mixture delivery corresponding to the lower power level
  • Such a regulation can only be achieved when using separate turbochargers for air and gas by means of two carefully coordinated throttles, but not at all in those devices which have previously been proposed for external mixture compression, since there the performance of the charger is not different Engine power depends and must therefore be controlled separately.
  • the relatively high temperature in the compressor housing of the turbocharger has proven to be quite advantageous proven. It leads to the fact that the methanol, which is initially in the form of finely divided droplets, passes into the gas phase, as a result of which the combustion of the mixture is particularly complete.
  • Fig. 2 shows a simplified variant.
  • turbocharger 3 is a section through a turbocharger which can preferably be used in the context of the invention.
  • An optimal mixture of fuel gas and air is supplied to the schematically indicated internal combustion engine 1 via a feed line 15 in a manner to be discussed via the inlet valve 13.
  • the exhaust gases leave the internal combustion engine via the valve 14 and the exhaust line 16 via the turbocharger 6, driving the turbine of the turbocharger.
  • the supply of the mixture of fuel gas and air according to the invention takes place in such a way that the two components of the mixture are first brought together in a mixing container 8 and pass through a parts catcher 7 into the compressor housing of the turbocharger 6, where they are intimately driven by the compressor wheel rotating at high speed mixed and pressed under pressure into the supply line 15 of the motor.
  • the amount of the gas mixture supplied to the internal combustion engine 1 can be regulated via a simple throttle valve. If you reduce the filling of the combustion engines 1 by adjusting the throttle valve 2, the power of the turbocharger 6 automatically drops and the replenishment of the mixture changes in accordance with the selected throttle position. In order to prevent premature ignition of the combustible mixture, an aftercooler 4 is provided in the feed line 15, through which cooling water flows. Flame back from the combustion chamber of the internal combustion engine 1 is prevented by a flame protection screen 3. If, despite all the precautionary measures in the supply line 15, an undesired combustion occurs, the pressure relief valve 5 prevents the occurrence of damage, and a flame protection screen in the pressure relief valve 5 also prevents the outward penetration of flames.
  • the embodiment according to FIG. 2 differs from the first embodiment primarily in that the valve 10 can be used to add an additional fuel to the already ignitable gas mixture in order to optimize the mixing ratio.
  • the flame protection screen is integrated in the aftercooler in such a way that the noise is passed through spaces that are so narrow that a flame does not penetrate.
  • a pressure relief valve is dispensed with because of the lower flammability of the mixture; only a non-return valve 12 ensures the separation of the turbocharger 6 from the feed line for the premixed gas.
  • FIG. 3 an exhaust gas turbocharger 6 is shown in detail, as it can be used in connection with the invention.
  • the rotor consists of a turbine wheel 23 which is mounted on a shaft 31. This
  • Turbine wheel 23 is fed through a water-cooled turbine housing 24 at 25, the hot exhaust gas of internal combustion engine 1, whereby the turbine is set in rotation.
  • the exhaust gas is discharged at 26.
  • the transfer of the exhaust gas temperature via the shaft 31 to the ignition Above left part of the system through capable gas mixture prevents the supply of cooling oil via the feed line 27.
  • This coolant cools the bearings 3, 3 'and flows off at 28.
  • the ignitable mixture is introduced through the inlet 29 into the compressor housing 17, where it is mixed and compressed by the compressor wheel 18. At 30, it flows into the feed line 15 of the internal combustion engine 1.
  • a blocking pressure chamber 20 is provided in the exemplary embodiment shown, which is delimited on the one hand by the compressor housing 17 and on the other hand by a partition wall 19 surrounding the shaft 31. Exhaust gas that can be cooled in a heat exchanger 22 can be fed into this barrier pressure space 20 via a line 21. In general, however, it is sufficient to cool the extremely small amounts of exhaust gas that are supplied here, the supply line 21 as a cooling coil, which is cooled by the ambient air. The pressure of the exhaust gas in the barrier pressure chamber 29 leads to leakage losses in this area
  • the parts of the compressor housing 17 and the compressor wheel 18 which are moved relative to one another consist of a material which, when rubbed or struck, that is to say in the event of a defect, does not generate any sparks, for example aluminum.
  • the temperature of all parts with which the ignitable mixture supplied at 29 can come into contact is substantially below the ignition temperature of the mixture, for example 350 ° C.
  • a certain warming of the mixture can be quite advantageous, since it completely evaporates the liquid droplets in nebulous fuels, in particular that of methanol, and thus contributes to a streak-free mixing of combustion air and fuel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Abstract

On amène à un moteur à combustion (1) un mélange d'air et de carburant gazeux formé à l'extérieur de la chambre de combustion. L'air et le carburant ne sont comprimés qu'après avoir été mélangés, ce qui est effectué par un turbocompresseur de gaz d'échappement (6); diverses mesures sont prises pour éviter une inflammation du mélange.
EP19830900485 1983-01-25 1983-01-25 Moteur a combustion avec un dispositif de suralimentation Withdrawn EP0131566A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/AT1983/000004 WO1984002955A1 (fr) 1983-01-25 1983-01-25 Moteur a combustion avec un dispositif de suralimentation

Publications (1)

Publication Number Publication Date
EP0131566A1 true EP0131566A1 (fr) 1985-01-23

Family

ID=3681794

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19830900485 Withdrawn EP0131566A1 (fr) 1983-01-25 1983-01-25 Moteur a combustion avec un dispositif de suralimentation
EP84890022A Ceased EP0117864A1 (fr) 1983-01-25 1984-01-25 Moteur à combustion

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP84890022A Ceased EP0117864A1 (fr) 1983-01-25 1984-01-25 Moteur à combustion

Country Status (2)

Country Link
EP (2) EP0131566A1 (fr)
WO (1) WO1984002955A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9601196L (sv) * 1996-03-28 1997-09-29 Volvo Wheel Loaders Ab Säkerhetsfilter
AU2007100162A5 (en) * 2002-09-25 2007-03-22 Dbt Australia Pty Limited Turbocharged compression ignition engine
EP2663373A2 (fr) * 2011-01-11 2013-11-20 E.I. Du Pont De Nemours And Company Procédés de réduction de la propagation du feu dans des systèmes à l'aide d'un fluide réfrigérant inflammable
US9624821B2 (en) 2011-05-19 2017-04-18 Toyota Jidosha Kabushiki Kaisha Air intake structure for internal combustion engine

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE172144C (fr) *
GB456989A (en) * 1923-03-20 1936-09-16 James Edwin Ellor Improvements in or relating to internal combustion engine and turbine plant
GB255894A (en) * 1925-07-27 1927-02-24 British Thomson Houston Co Ltd Improvements in and relating to superchargers for internal combustion engines
GB363628A (en) * 1930-09-12 1931-12-14 Arthur Stephenson A device for the prevention of back fires in gas apparatus
FR792891A (fr) * 1934-08-02 1936-01-11 Rolls Royce Perfectionnements aux compresseurs de suralimentation actionnés par l'échappement,pour moteurs à combustion interne
US3577726A (en) * 1969-07-24 1971-05-04 Caterpillar Tractor Co Fuel system for natural gas turbocharged engine
US3673798A (en) * 1971-01-08 1972-07-04 Gen Motors Corp Turbocharged internal combustion engine
US3834156A (en) * 1973-01-10 1974-09-10 Wallace Murray Corp Engine turbocharging system with vented compressor bearing
US3965681A (en) * 1975-06-30 1976-06-29 General Motors Corporation Internal combustion engine and turbosupercharger therefor with heat pipe for intake mixture heating
US4192656A (en) * 1977-12-15 1980-03-11 Atlantic Richfield Company Method and apparatus for halting the advancement of accidental ethylene decomposition in a gas pipeline
DE2758819A1 (de) * 1977-12-30 1979-07-12 Hoechst Ag Verfahren und vorrichtung zum einleiten von explosiblen gasen in einen brennraum
DE2821154A1 (de) * 1978-05-13 1980-04-17 Volkswagenwerk Ag Abgasturbolader fuer brennkraftmaschinen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8402955A1 *

Also Published As

Publication number Publication date
EP0117864A1 (fr) 1984-09-05
WO1984002955A1 (fr) 1984-08-02

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Inventor name: SOELLNER, ROBERT

Inventor name: BURGSTALLER, GUENTHER