GB813629A - Improvements in or relating to diesel engines - Google Patents

Improvements in or relating to diesel engines

Info

Publication number
GB813629A
GB813629A GB3351454A GB3351454A GB813629A GB 813629 A GB813629 A GB 813629A GB 3351454 A GB3351454 A GB 3351454A GB 3351454 A GB3351454 A GB 3351454A GB 813629 A GB813629 A GB 813629A
Authority
GB
United Kingdom
Prior art keywords
recess
projection
piston
disc
projects
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
GB3351454A
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
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB813629A publication Critical patent/GB813629A/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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • 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
    • F02B2720/00—Engines with liquid fuel
    • F02B2720/22—Four stroke engines
    • F02B2720/226—Four stroke engines with measures for improving combustion

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)

Abstract

813,629. Combustion chambers. BUTTERWORTH, A. J. Feb. 20, 1956 [Nov. 19, 1954], No. 33514/54. Class 7(3) A projection on the head of a piston is formed with a combustion recess 12, Figs. 3 and 4, therein into which lead open-topped grooves 13 formed in the wall of the projection. In Figs. 3 and 4 the projection 13 is hemispherical and projects into a corresponding recess in the cylinder head at top dead centre, the displaced air forced through the grooves 13 setting up a strong swirl in the recess 12. Shallow depressions 14, 15 are formed in the projection 13 opposite the inlet and exhaust valves 2, 3, Fig. 2, the inlet passage 9 being inclined at its end to cause the entering air to rotate in the cylinder. The piston 4 may be formed of aluminium and the bottom of the recess 12 is preferably formed by a cast-in disc 16, Fig. 4, of heat resisting steel 16 insulated from the piston by insulating material such as mica 17. In a modification the disc 16 is held in position by a circlip expanded by a grub screw and in Fig. 6 the disc 16 is screwed in position and recessed to leave an air space thereunder, the material 17 being omitted. In Fig. 8 the recess 12 is provided in a lozenge shaped projection 20 on the piston crown which projects into a corresponding recess in the cylinder head. The inlet valve may be fixed to a rocker arm as described in Specification 710,073.
GB3351454A 1954-11-19 Improvements in or relating to diesel engines Expired GB813629A (en)

Publications (1)

Publication Number Publication Date
GB813629A true GB813629A (en) 1959-05-21

Family

ID=1743491

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3351454A Expired GB813629A (en) 1954-11-19 Improvements in or relating to diesel engines

Country Status (1)

Country Link
GB (1) GB813629A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419395A1 (en) * 1978-03-08 1979-10-05 Bosch Gmbh Robert PISTON INTERNAL COMBUSTION ENGINE WITH CIRCULAR CYLINDRICAL COMBUSTION CHAMBER

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419395A1 (en) * 1978-03-08 1979-10-05 Bosch Gmbh Robert PISTON INTERNAL COMBUSTION ENGINE WITH CIRCULAR CYLINDRICAL COMBUSTION CHAMBER

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