AU2001221068A1 - Internal combustion engine with a single crankshaft and having opposed cylinderswith opposed pistons - Google Patents

Internal combustion engine with a single crankshaft and having opposed cylinderswith opposed pistons

Info

Publication number
AU2001221068A1
AU2001221068A1 AU2001221068A AU2106801A AU2001221068A1 AU 2001221068 A1 AU2001221068 A1 AU 2001221068A1 AU 2001221068 A AU2001221068 A AU 2001221068A AU 2106801 A AU2106801 A AU 2106801A AU 2001221068 A1 AU2001221068 A1 AU 2001221068A1
Authority
AU
Australia
Prior art keywords
opposed
pistons
crankshaft
internal combustion
combustion engine
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.)
Abandoned
Application number
AU2001221068A
Inventor
Prof.-Dr. Peter Hofbauer (Nmi)
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
Publication of AU2001221068A1 publication Critical patent/AU2001221068A1/en
Abandoned 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
    • F02B75/00—Other engines
    • F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F02B75/282—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders the pistons having equal strokes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B7/00—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F01B7/02—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons
    • F01B7/04—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons acting on same main shaft
    • 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
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/24—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type
    • F02B75/246—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type with only one crankshaft of the "pancake" type, e.g. pairs of connecting rods attached to common crankshaft bearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/22—Compensation of inertia forces
    • F16F15/24—Compensation of inertia forces of crankshaft systems by particular disposition of cranks, pistons, or the like
    • 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
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • F02B37/004—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust drives arranged in series
    • 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

Abstract

A two-stroke internal combustion engine is disclosed having opposed cylinders, each cylinder having a pair of opposed pistons, with all the pistons connected to a common central crankshaft. The inboard pistons of each cylinder are connected to the crankshaft with pushrods and the outboard pistons are connected to the crankshaft with pullrods. This configuration results in a compact engine with a very low profile, in which the free mass forces can be essentially totally balanced. The engine configuration also allows for asymmetrical timing of the intake and exhaust ports through independent angular positioning of the eccentrics on the crankshaft, making the engine suitable for supercharging.
AU2001221068A 2000-12-15 2000-12-15 Internal combustion engine with a single crankshaft and having opposed cylinderswith opposed pistons Abandoned AU2001221068A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/034122 WO2002048524A1 (en) 2000-12-15 2000-12-15 Internal combustion engine with a single crankshaft and having opposed cylinders with opposed pistons

Publications (1)

Publication Number Publication Date
AU2001221068A1 true AU2001221068A1 (en) 2002-06-24

Family

ID=21742071

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001221068A Abandoned AU2001221068A1 (en) 2000-12-15 2000-12-15 Internal combustion engine with a single crankshaft and having opposed cylinderswith opposed pistons

Country Status (6)

Country Link
EP (3) EP2320048A1 (en)
JP (1) JP3859595B2 (en)
AT (2) ATE535693T1 (en)
AU (1) AU2001221068A1 (en)
DE (1) DE60041008D1 (en)
WO (1) WO2002048524A1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003078835A1 (en) 2002-03-15 2003-09-25 Advanced Propulsion Technologies, Inc. Engine with pumping capability
WO2005003532A1 (en) 2003-06-25 2005-01-13 Advanced Propulsion Technologies, Inc. Internal combustion engine
FR2888907A1 (en) * 2005-07-21 2007-01-26 Marie Therese Mazille Crankshaft`s rotational movement transforming device for e.g. two stroke engine, has pistons displaced in cylinder comprising air inlet and exhaust ports, where height of ports is less than thickness of segments of pistons
FR2907283B1 (en) * 2006-10-17 2013-04-19 Airbus France DEVICE AND METHOD FOR ELECTRICALLY SUPPLYING AT LEAST ONE INDUCTION MACHINE ON BOARD AN AIRCRAFT
US10180115B2 (en) 2010-04-27 2019-01-15 Achates Power, Inc. Piston crown bowls defining combustion chamber constructions in opposed-piston engines
US9512779B2 (en) 2010-04-27 2016-12-06 Achates Power, Inc. Swirl-conserving combustion chamber construction for opposed-piston engines
EP2547868B1 (en) 2010-04-27 2016-08-03 Achates Power, Inc. Combustion chamber constructions for opposed-piston engines
EP2606202B1 (en) * 2010-08-16 2016-03-09 Achates Power, Inc. Fuel injection spray patterns for opposed-piston engines
US8746204B2 (en) * 2010-09-29 2014-06-10 Ecomotors, Inc. Frictionless rocking joint
CN103562515B (en) * 2011-05-18 2018-12-04 阿凯提兹动力公司 The combustion chamber structure of opposed-piston engine
GB2493061A (en) 2011-07-15 2013-01-23 Ecomotors Internat Inc Opposed piston engine with toroidal combustion chamber
US9080507B2 (en) 2011-10-27 2015-07-14 Anthony Rohan Gunewardena Multi-displacement internal combustion engine that removably couples a plurality of engine modules, axially at their crankshafts, to a single common output
GB2496479A (en) 2011-11-11 2013-05-15 Ecomotors Internat Inc Intake System for an Opposed-Piston Engine
BR112015000026A2 (en) * 2012-07-02 2017-06-27 Pinnacle Engines Inc variable compression ratio diesel engine
CN103322019A (en) * 2013-06-09 2013-09-25 安徽中鼎动力有限公司 Opposed-piston opposed-cylinder free piston engine crankshaft
US9211797B2 (en) 2013-11-07 2015-12-15 Achates Power, Inc. Combustion chamber construction with dual mixing regions for opposed-piston engines
US9995213B2 (en) 2015-03-31 2018-06-12 Achates Power, Inc. Asymmetrically-shaped combustion chamber for opposed-piston engines
US9840965B2 (en) 2015-07-31 2017-12-12 Achates Power, Inc. Skewed combustion chamber for opposed-piston engines
CN114251184A (en) * 2017-03-22 2022-03-29 阿凯提兹动力公司 Cylinder bore surface structure for opposed-piston engines
WO2023079397A1 (en) * 2021-11-05 2023-05-11 Aquarius Engines (A.M) Ltd. Oscilating electromagnetic power generator

Family Cites Families (20)

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DE114341C (en) *
US1332756A (en) * 1918-05-09 1920-03-02 Lemma J Root Rotary internal-combustion engine
GB184838A (en) * 1921-04-18 1922-08-18 John Douglas Improvements in two-stroke internal combustion engines
US2093433A (en) * 1933-06-09 1937-09-21 Greene Catharine De Motte Internal combustion engine
US1997396A (en) * 1934-04-18 1935-04-09 Michell Crankless Engines Corp Crankless mechanism
FR852918A (en) * 1938-04-12 1940-03-06 Maschf Augsburg Nuernberg Ag High-power, high-speed multi-cylinder gas engine
GB531009A (en) * 1939-07-08 1940-12-27 Edward Moller Improvements in two-stroke cycle internal combustion engines
GB565150A (en) * 1943-03-24 1944-10-30 John Alfred Emerson Reynolds Improvements in or relating to internal-combustion engines
GB805640A (en) * 1955-03-23 1958-12-10 Nordberg Manufacturing Co Improvements in or relating to two-stroke internal combustion engines
US4419969A (en) * 1979-07-31 1983-12-13 Bundrick Jr Benjamin Flexible cylinder-head internal combustion engine with cylinder compression adjustable for use with available fluid fuels
GB8404159D0 (en) * 1984-02-17 1984-03-21 Sophocles Papanicolacu J P Ic engine
BR8607364A (en) * 1986-09-04 1989-08-15 Galbraith Eng Pty Ltd ALTERNATIVE MACHINES
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DE4243255A1 (en) * 1992-12-19 1994-06-23 Graf Peter Von Ingelheim Internal combustion engine with two pistons per work area, especially a two-stroke engine with DC flushing
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US5560208A (en) * 1995-07-28 1996-10-01 Halimi; Edward M. Motor-assisted variable geometry turbocharging system
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Also Published As

Publication number Publication date
JP2005500450A (en) 2005-01-06
WO2002048524A1 (en) 2002-06-20
EP1980731B1 (en) 2011-11-30
EP1341999A1 (en) 2003-09-10
ATE416303T1 (en) 2008-12-15
JP3859595B2 (en) 2006-12-20
EP1980731A2 (en) 2008-10-15
DE60041008D1 (en) 2009-01-15
EP2320048A1 (en) 2011-05-11
ATE535693T1 (en) 2011-12-15
EP1341999B1 (en) 2008-12-03
EP1980731A3 (en) 2008-12-24

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