GB1448797A - Compression-ingnition internal combustion piston engine - Google Patents

Compression-ingnition internal combustion piston engine

Info

Publication number
GB1448797A
GB1448797A GB2737674A GB2737674A GB1448797A GB 1448797 A GB1448797 A GB 1448797A GB 2737674 A GB2737674 A GB 2737674A GB 2737674 A GB2737674 A GB 2737674A GB 1448797 A GB1448797 A GB 1448797A
Authority
GB
United Kingdom
Prior art keywords
fuel
combustion chamber
deflected
engine
starting
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
GB2737674A
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.)
Barkas Werke VEB
Original Assignee
Barkas Werke VEB
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 Barkas Werke VEB filed Critical Barkas Werke VEB
Publication of GB1448797A publication Critical patent/GB1448797A/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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0645—Details related to the fuel injector or the fuel spray
    • F02B23/0648—Means or methods to improve the spray dispersion, evaporation or ignition
    • F02B23/0651—Means or methods to improve the spray dispersion, evaporation or ignition the fuel spray impinging on reflecting surfaces or being specially guided throughout the combustion space
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0636—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston the combustion space having a substantially flat and horizontal bottom
    • F02B23/0639—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston the combustion space having a substantially flat and horizontal bottom the combustion space having substantially the shape of a cylinder
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14—Direct injection into combustion chamber
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0618—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston having in-cylinder means to influence the charge motion
    • F02B23/0624—Swirl flow
    • 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
    • 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)
  • Dispersion Chemistry (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

1448797 Combustion chambers BARKASWERKE VEB 20 June 1974 [25 June 1973] 27376/74 Heading F1B A compression ignition internal combustion engine comprises a rotationally symmetric combustion chamber 2, Fig. 2, having an impact surface 31 on to which fuel, injected via a nozzle, impinges, the fuel being deflected from its original path resulting in a higher fuel to air ratio and consequently greater ignitability for starting the engine. The diameter of the combustion chamber which is formed in the top of piston 1, varies as shown in Fig. 2, the surface 31 being situated in a plane passing through the largest diameter and being formed on a pin 311 embedded in the wall of the combustion chamber. Means is provided for creating an air vortex within the combustion chamber, the vorticity of which increases with the engine speed. At low engine speeds, i.e. on starting, the vorticity is insufficient to deflect an appreciable portion of the injected fuel away from surface 31, the fuel therefore strikes the surface and is deflected back along its path resulting in a richer mixture for starting. At the engine's operating speed the vorticity is sufficient to cause a portion of the injected fuel to be deflected away from surface 31 thereby reducing the richness of the mixture for normal running. The impact surface 31 may instead be supported by an arcuate ramp (312) Fig. 3 (not shown), which is integral with the combustion chamber wall. In an alternative embodiment, Fig. 6, the impact surface is formed on the head of a pin 321 threaded into the combustion chamber wall near its open end, a portion of the fuel impinging upon the surface at a substantial angle of incidence and being deflected toward the axis, resulting again in a richer mixture for starting. At operating speeds, the deflected fuel is maintained in a vortex in the proximity of the combustion chamber opening where it has minimal effect on the richness of the mixture. In this embodiment, the proportion of fuel deflected by the impact surface may be varied by varying its distance from the combustion chamber wall.
GB2737674A 1973-06-25 1974-06-20 Compression-ingnition internal combustion piston engine Expired GB1448797A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD171785A DD104345A1 (en) 1973-06-25 1973-06-25

Publications (1)

Publication Number Publication Date
GB1448797A true GB1448797A (en) 1976-09-08

Family

ID=5491787

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2737674A Expired GB1448797A (en) 1973-06-25 1974-06-20 Compression-ingnition internal combustion piston engine

Country Status (6)

Country Link
CS (1) CS182980B1 (en)
DD (1) DD104345A1 (en)
DE (1) DE2425554A1 (en)
FR (1) FR2234459B1 (en)
GB (1) GB1448797A (en)
HU (1) HU169647B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770138A (en) * 1986-06-19 1988-09-13 Nippon Clen Engine Research Institute Co. Ltd. Fuel injection type internal combustion engine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2809914C2 (en) * 1978-03-08 1984-09-06 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg Internal combustion engine
DE3327998A1 (en) * 1983-08-03 1985-02-14 Volkswagenwerk Ag, 3180 Wolfsburg Diesel internal combustion engine with air-distributing direct fuel injection
DE8423786U1 (en) * 1984-08-10 1986-02-20 Schnell, Heinrich, 6930 Eberbach Device for winding up a continuously fed, flexible material web
DE4102641A1 (en) * 1991-01-30 1992-04-16 Daimler Benz Ag Direct injection compression ignition engine - has concave jet impact faces in walls of trough in piston
DE102020001638A1 (en) 2020-03-12 2021-09-16 Man Truck & Bus Se Reciprocating internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770138A (en) * 1986-06-19 1988-09-13 Nippon Clen Engine Research Institute Co. Ltd. Fuel injection type internal combustion engine

Also Published As

Publication number Publication date
FR2234459A1 (en) 1975-01-17
HU169647B (en) 1977-02-28
DE2425554A1 (en) 1975-01-16
CS182980B1 (en) 1978-05-31
DD104345A1 (en) 1974-03-05
FR2234459B1 (en) 1978-01-13

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee