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AT505192B1 - TWO-STROKE INTERNAL COMBUSTION ENGINE WITH REVERSE RINSING - Google Patents

TWO-STROKE INTERNAL COMBUSTION ENGINE WITH REVERSE RINSING Download PDF

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Publication number
AT505192B1
AT505192B1 AT0099208A AT9922008A AT505192B1 AT 505192 B1 AT505192 B1 AT 505192B1 AT 0099208 A AT0099208 A AT 0099208A AT 9922008 A AT9922008 A AT 9922008A AT 505192 B1 AT505192 B1 AT 505192B1
Authority
AT
Austria
Prior art keywords
combustion engine
internal combustion
stroke internal
chamber
piston
Prior art date
Application number
AT0099208A
Other languages
German (de)
Other versions
AT505192A2 (en
AT505192A3 (en
Inventor
Reinhard Ing Knoll
Original Assignee
Avl List 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 Avl List Gmbh filed Critical Avl List Gmbh
Priority to AT0099208A priority Critical patent/AT505192B1/en
Publication of AT505192A2 publication Critical patent/AT505192A2/en
Publication of AT505192A3 publication Critical patent/AT505192A3/en
Priority to DE102009024863A priority patent/DE102009024863A1/en
Application granted granted Critical
Publication of AT505192B1 publication Critical patent/AT505192B1/en

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
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/14—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke
    • 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
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/005—Oscillating pipes with charging achieved by arrangement, dimensions or shapes of intakes pipes or chambers; Ram air pipes
    • 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
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/008—Resonance charging
    • 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
    • F02B33/04—Engines with reciprocating-piston pumps; Engines with crankcase pumps with simple crankcase pumps, i.e. with the rear face of a non-stepped working piston acting as sole pumping member in co-operation with the crankcase
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • 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)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Reciprocating Pumps (AREA)

Claims (4)

ästeifcscfistiiö patent AT505192B1 2009-08-15 namischen Effekte zu Folge des Resonanzvolumens 11 zur Spülung des Brennraumes 13 aus. Eine Kurbelgehäusepumpe, sowie Überströmkanäle zwischen dem Kurbelraum 14 und dem Brennraum 13 sind nicht notwendig. Dies vermindert den konstruktiven Aufwand wesentlich und bewirkt darüber hinaus eine deutliche Steigerung des Gesamtwirkungsgrades, da Verluste zu Folge der Kurbelgehäusepumpe vermieden werden können. [0023] Eine weitere Steigerung des Gesamtwirkungsgrades lässt sich erreichen, wenn der Kurbelraum 14 gasdicht gegenüber der Umgebung ausgeführt ist, wodurch bei einer Abwärtsbewegung des Kolbens 4 eine Komprimierung der darin eingeschlossenen Gase stattfindet. Während der Aufwärtsbewegung des Kolbens 4 erfolgt eine Expansion der Gase des Kurbelraums 14 nach dem Gasfederprinzip. Patentansprüche 1. Zweitakt-Brennkraftmaschine (2) mit Umkehrspülung mit zumindest einem Zylinder (3), in welchem ein hin- und hergehender Kolben (4) angeordnet ist, mit mindestens einem von einer Einlassleitung (9) ausgehenden Einlassschlitz (8) und zumindest einem mit einer Auslassleitung (12) verbundenen Auslassschlitz (10), wobei die Spülung des Zylinders (3) durch Gasschwingungen in zumindest einem Resonanzvolumen (11), insbesondere der Auslassleitung (12) und/oder der Einlassleitung (9), unterstützt wird, wobei unabhängig von der Kolbenstellung der Brennraum (13) vom Kurbelraum (14) gasdicht getrennt ist, dadurch gekennzeichnet, dass der Kurbelgehäuseraum (14) druckdicht ausgebildet ist.ästeifcscfistiiö patent AT505192B1 2009-08-15 effects due to the resonant volume 11 for purging the combustion chamber 13. A crankcase pump, as well as overflow between the crank chamber 14 and the combustion chamber 13 are not necessary. This significantly reduces the design effort and also causes a significant increase in the overall efficiency, since losses can be avoided as a result of the crankcase pump. A further increase in the overall efficiency can be achieved if the crank chamber 14 is designed to be gas-tight with respect to the environment, whereby a compression of the gases enclosed therein occurs during a downward movement of the piston 4. During the upward movement of the piston 4, an expansion of the gases of the crank chamber 14 takes place on the gas spring principle. 1. Two-stroke internal combustion engine (2) with reverse flushing with at least one cylinder (3), in which a reciprocating piston (4) is arranged, with at least one of an inlet line (9) emanating inlet slot (8) and at least one wherein the flushing of the cylinder (3) is assisted by gas oscillations in at least one resonance volume (11), in particular the outlet line (12) and / or the inlet line (9), wherein independently from the piston position of the combustion chamber (13) from the crank chamber (14) is gas-tightly separated, characterized in that the crankcase chamber (14) is pressure-tight. 2. Zweitakt-Brennkraftmaschine (2) nach Anspruch 1, dadurch gekennzeichnet, dass die Brennkraftmaschine (2) kurbelgehäusepumpenlos ausgebildet ist.2. Two-stroke internal combustion engine (2) according to claim 1, characterized in that the internal combustion engine (2) is designed crankcase pump-less. 3. Zweitakt-Brennkraftmaschine (2) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Resonanzvolumen (11) veränderbar ist.3. Two-stroke internal combustion engine (2) according to claim 1 or 2, characterized in that the resonance volume (11) is variable. 4. Zweitakt-Brennkraftmaschine (2) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Brennkraftmaschine (2) stationär betrieben wird und dass das Resonanzvolumen (11) für einen einzigen stationären Betriebspunkt ausgelegt ist. Hierzu 1 Blatt Zeichnungen 3/44. Two-stroke internal combustion engine (2) according to claim 1 or 2, characterized in that the internal combustion engine (2) is operated stationary and that the resonance volume (11) is designed for a single stationary operating point. 1 sheet of drawings 3/4
AT0099208A 2008-06-19 2008-06-19 TWO-STROKE INTERNAL COMBUSTION ENGINE WITH REVERSE RINSING AT505192B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT0099208A AT505192B1 (en) 2008-06-19 2008-06-19 TWO-STROKE INTERNAL COMBUSTION ENGINE WITH REVERSE RINSING
DE102009024863A DE102009024863A1 (en) 2008-06-19 2009-06-09 Two-stroke internal combustion engine with reverse purge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0099208A AT505192B1 (en) 2008-06-19 2008-06-19 TWO-STROKE INTERNAL COMBUSTION ENGINE WITH REVERSE RINSING

Publications (3)

Publication Number Publication Date
AT505192A2 AT505192A2 (en) 2008-11-15
AT505192A3 AT505192A3 (en) 2009-01-15
AT505192B1 true AT505192B1 (en) 2009-08-15

Family

ID=39944536

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0099208A AT505192B1 (en) 2008-06-19 2008-06-19 TWO-STROKE INTERNAL COMBUSTION ENGINE WITH REVERSE RINSING

Country Status (2)

Country Link
AT (1) AT505192B1 (en)
DE (1) DE102009024863A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3529645A1 (en) * 1984-11-05 1986-05-07 VEB Motorradwerk Zschopau, DDR 9360 Zschopau Exhaust system for a two-stroke internal combustion engine
DE19654710A1 (en) * 1996-12-30 1998-07-02 Martin Wimmer Method for generating physical power with reciprocating piston internal combustion engines
AT404391B (en) * 1989-11-10 1998-11-25 Pischinger Rudolf Dipl Ing Dr Exhaust system for a two-stroke internal combustion engine
DE19947728A1 (en) * 1998-10-07 2000-04-20 Avl List Gmbh Two-stroke engine exhaust system uses smaller and larger volume resonance chambers in tandem with narrow flow section between.
DE10239116A1 (en) * 2002-08-27 2004-03-04 Andreas Stihl Ag & Co internal combustion engine
DE10239133A1 (en) * 2002-08-27 2004-03-11 Andreas Stihl Ag & Co. Combustion engine, esp. 2-stroke motor for hand-held chain saws etc. has resonator tube partially/wholly integrated in engine housing wall, to save space
US20040144081A1 (en) * 2003-01-21 2004-07-29 Lacy James W. Engine exhaust system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919770A (en) 1956-01-21 1960-01-05 Kloeckner Humboldt Deutz Ag Spring-actuated starter for internal combustion engines
GB1304545A (en) 1970-03-13 1973-01-24
DE4322585A1 (en) 1993-07-07 1995-01-12 Mak Maschinenbau Krupp Internal combustion engine, especially diesel engine
DE29710169U1 (en) 1997-06-11 1997-08-14 Viking-Umwelttechnik Ges.M.B.H., Kufstein Spring starter device for an internal combustion engine
US7449793B2 (en) 2004-02-18 2008-11-11 Bluwav Systems, Llc Portable range extender with autonomous control of starting and stopping operations
AT413866B (en) 2004-04-16 2006-06-15 Avl List Gmbh Method for reducing transmission noises of drive train of vehicle e.g. small size car, involves controlling torque in drive train such that drive oscillations are suppressed depending on tensile or axial load in transfer box
DE102006034937A1 (en) 2006-07-28 2008-01-31 Dr.Ing.H.C. F. Porsche Ag Operating method for a hybrid drive
DE102007032316B4 (en) 2007-07-11 2015-12-17 Bayerische Motoren Werke Aktiengesellschaft Vehicle with an energy recuperation and storage device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3529645A1 (en) * 1984-11-05 1986-05-07 VEB Motorradwerk Zschopau, DDR 9360 Zschopau Exhaust system for a two-stroke internal combustion engine
AT404391B (en) * 1989-11-10 1998-11-25 Pischinger Rudolf Dipl Ing Dr Exhaust system for a two-stroke internal combustion engine
DE19654710A1 (en) * 1996-12-30 1998-07-02 Martin Wimmer Method for generating physical power with reciprocating piston internal combustion engines
DE19947728A1 (en) * 1998-10-07 2000-04-20 Avl List Gmbh Two-stroke engine exhaust system uses smaller and larger volume resonance chambers in tandem with narrow flow section between.
DE10239116A1 (en) * 2002-08-27 2004-03-04 Andreas Stihl Ag & Co internal combustion engine
DE10239133A1 (en) * 2002-08-27 2004-03-11 Andreas Stihl Ag & Co. Combustion engine, esp. 2-stroke motor for hand-held chain saws etc. has resonator tube partially/wholly integrated in engine housing wall, to save space
US20040144081A1 (en) * 2003-01-21 2004-07-29 Lacy James W. Engine exhaust system

Also Published As

Publication number Publication date
AT505192A2 (en) 2008-11-15
DE102009024863A1 (en) 2009-12-24
AT505192A3 (en) 2009-01-15

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Effective date: 20190619