AU2002226998A1 - High efficiency engine with variable compression ratio and charge (vcrc engine) - Google Patents

High efficiency engine with variable compression ratio and charge (vcrc engine)

Info

Publication number
AU2002226998A1
AU2002226998A1 AU2002226998A AU2699802A AU2002226998A1 AU 2002226998 A1 AU2002226998 A1 AU 2002226998A1 AU 2002226998 A AU2002226998 A AU 2002226998A AU 2699802 A AU2699802 A AU 2699802A AU 2002226998 A1 AU2002226998 A1 AU 2002226998A1
Authority
AU
Australia
Prior art keywords
engine
compression ratio
presented
results
variable compression
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
AU2002226998A
Inventor
Kenneth W. Cowans
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 AU2002226998A1 publication Critical patent/AU2002226998A1/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
    • 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
    • F02B25/18—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 the charge flowing upward essentially along cylinder wall adjacent the inlet ports, e.g. by means of deflection rib on piston
    • 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
    • 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
    • F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
    • F02B75/041—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of cylinder or cylinderhead positioning
    • F02B75/042—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of cylinder or cylinderhead positioning the cylinderhead comprising a counter-piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D15/00—Varying compression ratio
    • F02D15/04—Varying compression ratio by alteration of volume of compression space without changing 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/12—Engines characterised by fuel-air mixture compression 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
    • 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

Abstract

An internal combustion engine using variable compression ratio and variable fuel supply to one of two combustion chambers is presented. Varying the compression ratio is accomplished by changing the volume of a single combustion chamber. This, in combination with lean burning, results in a highly efficient prime mover particularly at the low torque outputs needed in passenger car applications. The relationship of compression ratio and fuel feed is varied with engine speed. Burning occurs in two stages, and this results in a clean exhaust. The invention allows very efficient throttling of two-cycle engines to be realized. A concept for supplying air to a two-cycle engine at very good efficiencies is also presented. The combination of these techniques can result in an engine for automotive use that is half the weight of conventional units with a thermal efficiency of 40% or more at average engine output.
AU2002226998A 2000-11-29 2001-11-29 High efficiency engine with variable compression ratio and charge (vcrc engine) Abandoned AU2002226998A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US25379900P 2000-11-29 2000-11-29
US60253799 2000-11-29
PCT/US2001/044487 WO2002044537A1 (en) 2000-11-29 2001-11-29 High efficiency engine with variable compression ratio and charge (vcrc engine)

Publications (1)

Publication Number Publication Date
AU2002226998A1 true AU2002226998A1 (en) 2002-06-11

Family

ID=22961751

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002226998A Abandoned AU2002226998A1 (en) 2000-11-29 2001-11-29 High efficiency engine with variable compression ratio and charge (vcrc engine)

Country Status (8)

Country Link
US (2) US6708654B2 (en)
EP (1) EP1337747B1 (en)
JP (2) JP2004521216A (en)
AT (1) ATE371103T1 (en)
AU (1) AU2002226998A1 (en)
CA (1) CA2429820C (en)
DE (1) DE60130136T2 (en)
WO (1) WO2002044537A1 (en)

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US9416723B2 (en) 2013-04-08 2016-08-16 Kenneth W. Cowans Air supply concepts to improve efficiency of VCRC engines
CN103256126B (en) * 2013-05-09 2015-07-15 浙江大学 Mechanical auxiliary homogeneous charge compression ignition control system for combustion engine
US10273877B2 (en) * 2016-03-29 2019-04-30 GM Global Technology Operations LLC Variable compression ratio engine
EP3555445A4 (en) * 2016-12-14 2020-07-29 Hedman Ericsson Patent AB Method for providing variable compression ratio in an internal combustion engine and actuator for said method
FR3060654A1 (en) * 2016-12-15 2018-06-22 Valeo Systemes Thermiques VOLUMETRIC RATIO VARIATION DEVICE AND CORRESPONDING AIR INTAKE MODULE
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US10060336B1 (en) * 2017-06-15 2018-08-28 Ford Global Technologies, Llc Variable compression ratio engine and method for operation thereof
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Also Published As

Publication number Publication date
EP1337747A4 (en) 2004-08-18
EP1337747A1 (en) 2003-08-27
CA2429820C (en) 2009-09-22
US6708654B2 (en) 2004-03-23
CA2429820A1 (en) 2002-06-06
US20040083991A1 (en) 2004-05-06
DE60130136D1 (en) 2007-10-04
WO2002044537A8 (en) 2002-07-11
US20020104492A1 (en) 2002-08-08
EP1337747B1 (en) 2007-08-22
US6814064B2 (en) 2004-11-09
ATE371103T1 (en) 2007-09-15
JP2008180235A (en) 2008-08-07
WO2002044537A1 (en) 2002-06-06
DE60130136T2 (en) 2008-03-13
JP2004521216A (en) 2004-07-15

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