GB1297678A - - Google Patents

Info

Publication number
GB1297678A
GB1297678A GB1297678DA GB1297678A GB 1297678 A GB1297678 A GB 1297678A GB 1297678D A GB1297678D A GB 1297678DA GB 1297678 A GB1297678 A GB 1297678A
Authority
GB
United Kingdom
Prior art keywords
mixture
exhaust
air
fuel
gas
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.)
Expired
Application number
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 filed Critical
Publication of GB1297678A publication Critical patent/GB1297678A/en
Expired legal-status Critical Current

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
    • F02D13/0203—Variable control of intake and exhaust valves
    • F02D13/0215—Variable control of intake and exhaust valves changing the valve timing only
    • 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
    • F01L1/28—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of coaxial valves; characterised by the provision of valves co-operating with both intake and exhaust ports
    • 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
    • F01L1/344—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 changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/348—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 changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear by means acting on timing belts or chains
    • 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
    • F02B17/00—Engines characterised by means for effecting stratification of charge in cylinders
    • 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
    • F02B47/00—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
    • F02B47/04—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being other than water or steam only
    • F02B47/08—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being other than water or steam only the substances including exhaust gas
    • 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
    • F02D13/0257—Independent control of two or more intake or exhaust valves respectively, i.e. one of two intake valves remains closed or is opened partially while the other is fully opened
    • 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
    • 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
    • F02D13/0276—Actuation of an additional valve for a special application, e.g. for decompression, exhaust gas recirculation or cylinder scavenging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D21/00—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
    • F02D21/06—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air
    • F02D21/08—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of engine
    • 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
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • 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

1297678 Stratified fuel charges; recyling exhaust P S MYERS 9 Feb 1970 [20 June 1969 2 Feb 1970] 6011/70 Heading F1B In an I.C. engine having intake and exhaust ports a method of providing a stratified charge comprises providing a quantity of fuel/air mixture in the combustion chamber in proportion to the engine load and providing a quantity of exhaust gas formed form the burning of the previous fuel/ air mixture in inverse proportion to the engine load to complement the quantity of fuel/ air mixture, the bulk gas and quench gas portions of the fuel/ air constituent of the stratified charge being respectively exhausted into first and second gas chambers, the portions being selectively returned to form the exhaust gas constituent for a subsequent stratified charge. The method improves fuel utilization and reduces objectionable exhaust emissions at partial engine loads. A carburetter 26, Fig.1 forms a mixture which produces desired reduced nitrous oxide emissions after ("min NO F/A mixture") which is admitted to the combustion chamber through an auxiliary inlet valve 29 and a main inlet valve 28. The exhaust ports are controlled by main exhaust valves 36, 37 and auxiliary exhaust valves 38, 39 which control the flow of exhaust gases to and from exhaust chambers 40, 41. The flow of gas through Venturis 42 induces an air-flow through a conduit 43 having a check-valve 44, a valve 45 which is fully opened by a bi-metallic element 47 when the engine is cold and a valve 46 controlled by accelerator position to be fully open when the engine is running at minimum load at which a maximum amount of exhaust gas/ air mixture ("EG/A mixture") is required. The air may be introduced by an air pump instead of a Venturi. Chambers 40, 41 may be common to several cylinders. The timing of the respective auxiliary and main valves is varied to provide the desired quantities of min NO F/A mixture and EG/A mixture. The invention may be applied to sparkignition and Diesel engines or to rotary piston engines. In the latter the products of combustion formed by the burning of the min. NO F/A mixture are exhausted at the first end of the piston and a portion thereof is redrawn at the opposite end of the piston with admixed air.
GB1297678D 1969-06-20 1970-02-09 Expired GB1297678A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US83513469A 1969-06-20 1969-06-20
US764170A 1970-02-02 1970-02-02

Publications (1)

Publication Number Publication Date
GB1297678A true GB1297678A (en) 1972-11-29

Family

ID=26677233

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1297678D Expired GB1297678A (en) 1969-06-20 1970-02-09

Country Status (3)

Country Link
DE (1) DE2012812A1 (en)
FR (1) FR2052281A5 (en)
GB (1) GB1297678A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2008672A (en) * 1977-11-14 1979-06-06 Yamaha Motor Co Ltd Controlling Internal Combustion Engines
FR2703107A1 (en) * 1993-03-22 1994-09-30 Arlaud Roger Device making it possible to control the filling and stratified combustion of an internal combustion engine
WO2004031559A1 (en) * 2002-10-01 2004-04-15 Daimlerchrysler Ag Self-igniting internal combustion engine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5455210A (en) * 1977-10-10 1979-05-02 Nippon Soken Inc Operation of two-cycle engine
JP4326044B2 (en) * 1998-08-21 2009-09-02 日産自動車株式会社 4-cycle internal combustion engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2008672A (en) * 1977-11-14 1979-06-06 Yamaha Motor Co Ltd Controlling Internal Combustion Engines
FR2703107A1 (en) * 1993-03-22 1994-09-30 Arlaud Roger Device making it possible to control the filling and stratified combustion of an internal combustion engine
WO2004031559A1 (en) * 2002-10-01 2004-04-15 Daimlerchrysler Ag Self-igniting internal combustion engine

Also Published As

Publication number Publication date
FR2052281A5 (en) 1971-04-09
DE2012812A1 (en) 1971-01-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees