GB713637A - Improvements in diesel engines provided with pre-combustion chambers - Google Patents

Improvements in diesel engines provided with pre-combustion chambers

Info

Publication number
GB713637A
GB713637A GB28460/50A GB2846050A GB713637A GB 713637 A GB713637 A GB 713637A GB 28460/50 A GB28460/50 A GB 28460/50A GB 2846050 A GB2846050 A GB 2846050A GB 713637 A GB713637 A GB 713637A
Authority
GB
United Kingdom
Prior art keywords
enlargement
precombustion chamber
transfer passage
chamber
precombustion
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
GB28460/50A
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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 Daimler Benz AG filed Critical Daimler Benz AG
Publication of GB713637A publication Critical patent/GB713637A/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
    • F02B23/04—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being subdivided into two or more chambers
    • 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
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/14—Engines characterised by precombustion chambers 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
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B2019/006—Engines characterised by precombustion chambers with thermal insulation
    • 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)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

713,637. Oil engines; water cooling. DAIMLER-BENZ AKT.-GES. Nov. 21, 1950 [Dec. 16, 1949], No. 28460/50. Classes 7(2) and 7(3) A transfer passage 7 between a main combustion space 4 and a precombustion chamber 6 of compact shape i.e. spherical or approximately spherical, is enlarged stepwise 12 at its opening into the precombustion chamber and a sharp edge 12<1> is formed at the junction of the passage with the enlargement. The cylinder and head are water cooled and free passage 21 for the cooling water can be provided between the wall 18 of the precombustion chamber and walls 19, 20 around the inlet and exhaust valves. The diameter of the enlargement is for example one and a half to two and a half times the diameter of the transfer passage. Spaces 14, 15 which restrict heat dissipation are formed between the precombustion chamber and the cylinder head. In a modification the precombustion chamber is made cylindrical in its intermediate portion and substantially conical at its ends directed respectively towards an injector and the enlargement. It is located centrally between two inlet valves and two exhaust valves. The combustion chamber in the piston comprises a circular boundary wall in the piston head. The transfer passage may comprise a nozzle or conical widening at its opening into the main combustion space. The transfer passage and enlargement may be formed in a liner, or a one-piece liner enclosing the precombustion space and the transfer passage and its enlargement may be inserted into a chamber in the cylinder head. The precombustion chamber may be in the form of a sphere slightly deformed so as to become somewhat elliptical in section. Reference has been directed by the Comptroller to Specification 674,534.
GB28460/50A 1949-12-16 1950-11-21 Improvements in diesel engines provided with pre-combustion chambers Expired GB713637A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH713637X 1949-12-16

Publications (1)

Publication Number Publication Date
GB713637A true GB713637A (en) 1954-08-18

Family

ID=4530965

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28460/50A Expired GB713637A (en) 1949-12-16 1950-11-21 Improvements in diesel engines provided with pre-combustion chambers

Country Status (1)

Country Link
GB (1) GB713637A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6732703B2 (en) 2002-06-11 2004-05-11 Cummins Inc. Internal combustion engine producing low emissions
US7210448B2 (en) 2002-06-11 2007-05-01 Cummins, Inc. Internal combustion engine producing low emissions
US8677970B2 (en) 2011-03-17 2014-03-25 Cummins Intellectual Property, Inc. Piston for internal combustion engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6732703B2 (en) 2002-06-11 2004-05-11 Cummins Inc. Internal combustion engine producing low emissions
US6966294B2 (en) 2002-06-11 2005-11-22 Cummins Inc. Internal combustion engine producing low emissions
US7210448B2 (en) 2002-06-11 2007-05-01 Cummins, Inc. Internal combustion engine producing low emissions
US8677970B2 (en) 2011-03-17 2014-03-25 Cummins Intellectual Property, Inc. Piston for internal combustion engine
USRE46806E1 (en) 2011-03-17 2018-04-24 Cummins Intellectual Property, Inc. Piston for internal combustion engine

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