SE9503236D0 - Arrangement and method for exhaust feedback in a four-stroke internal combustion engine - Google Patents

Arrangement and method for exhaust feedback in a four-stroke internal combustion engine

Info

Publication number
SE9503236D0
SE9503236D0 SE9503236A SE9503236A SE9503236D0 SE 9503236 D0 SE9503236 D0 SE 9503236D0 SE 9503236 A SE9503236 A SE 9503236A SE 9503236 A SE9503236 A SE 9503236A SE 9503236 D0 SE9503236 D0 SE 9503236D0
Authority
SE
Sweden
Prior art keywords
stroke
inlet
engine
combustion engine
arrangement
Prior art date
Application number
SE9503236A
Other languages
Swedish (sv)
Other versions
SE9503236L (en
Inventor
Jan-Olof Larsson
Original Assignee
Scania Cv Ab
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 Scania Cv Ab filed Critical Scania Cv Ab
Priority to SE9503236A priority Critical patent/SE9503236L/en
Publication of SE9503236D0 publication Critical patent/SE9503236D0/en
Priority to PCT/SE1996/001159 priority patent/WO1997011267A1/en
Publication of SE9503236L publication Critical patent/SE9503236L/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0273—Multiple actuations of a valve within an engine cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0223—Variable control of the intake valves only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/01—Internal exhaust gas recirculation, i.e. wherein the residual exhaust gases are trapped in the cylinder or pushed back from the intake or the exhaust manifold into the combustion chamber without the use of additional passages
    • 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

A four-stroke combustion engine, preferably a turbocharged diesel engine, incorporates a combustion chamber, one or more inlet valves (4), and at least one camshaft (5) controlling the valves so as to open the inlet valves during the engine inlet stroke in order to feed combustion air from an inlet line (6, 7) into the combustion chamber. For feedback of part of the exhaust gases, at least one of the inlet valves (4) is arranged to be also able to be opened during part of the engine expansion stroke and/or exhaust stroke, so that part of the exhaust gases is fed back to the inlet line (6, 7) in order to be fed into the combustion chamber together with new combustion air during a subsequent inlet stroke.
SE9503236A 1995-09-19 1995-09-19 Arrangement and method for exhaust feedback in a four-stroke internal combustion engine SE9503236L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9503236A SE9503236L (en) 1995-09-19 1995-09-19 Arrangement and method for exhaust feedback in a four-stroke internal combustion engine
PCT/SE1996/001159 WO1997011267A1 (en) 1995-09-19 1996-09-18 Arrangement and method for exhaust gas feedback in a four-stroke combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9503236A SE9503236L (en) 1995-09-19 1995-09-19 Arrangement and method for exhaust feedback in a four-stroke internal combustion engine

Publications (2)

Publication Number Publication Date
SE9503236D0 true SE9503236D0 (en) 1995-09-19
SE9503236L SE9503236L (en) 1997-03-20

Family

ID=20399519

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9503236A SE9503236L (en) 1995-09-19 1995-09-19 Arrangement and method for exhaust feedback in a four-stroke internal combustion engine

Country Status (2)

Country Link
SE (1) SE9503236L (en)
WO (1) WO1997011267A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2746544A1 (en) * 2012-12-21 2014-06-25 Perkins Engines Company Limited Camshaft and engine assembly for a diesel engine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02140454A (en) * 1988-11-22 1990-05-30 Kubota Ltd Exhaust gas circulator for internal combustion engine
JPH03202603A (en) * 1989-12-29 1991-09-04 Toyota Autom Loom Works Ltd Opening/closing mechanism for valve in internal combustion engine
DE4424802C1 (en) * 1994-07-14 1995-07-13 Daimler Benz Ag EGR system for four=stroke engine

Also Published As

Publication number Publication date
SE9503236L (en) 1997-03-20
WO1997011267A1 (en) 1997-03-27

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