GB687687A - Improvements in 4-stroke internal combustion engines having 4 cylinders - Google Patents

Improvements in 4-stroke internal combustion engines having 4 cylinders

Info

Publication number
GB687687A
GB687687A GB1075/51A GB107551A GB687687A GB 687687 A GB687687 A GB 687687A GB 1075/51 A GB1075/51 A GB 1075/51A GB 107551 A GB107551 A GB 107551A GB 687687 A GB687687 A GB 687687A
Authority
GB
United Kingdom
Prior art keywords
cylinder
cylinders
carburetter
mid
engine
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
GB1075/51A
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.)
GIUSSEPPE BENELLI
Original Assignee
GIUSSEPPE BENELLI
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 GIUSSEPPE BENELLI filed Critical GIUSSEPPE BENELLI
Publication of GB687687A publication Critical patent/GB687687A/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
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
    • 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
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • F02B75/224—Multi-cylinder engines with cylinders in V, fan, or star arrangement with cylinders in fan arrangement
    • 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
    • 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
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1816—Number of cylinders four
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Abstract

687,687. Radial-cylinder engines; cooling cylinders; spray carburetters; mounting magnetos; valve-gear. BENELLI, G. Jan. 15, 1951 [Jan. 24, 1950], No. 1075/51. Classes 7 (ii), 7 (iii), 7 (iv) and 7 (vi). In a four-stroke four-cylinder engine, each cylinder is axially displaced with respect to all the others and the cylinders are disposed radially in fan shape at substantially 60 degrees intervals to form, as shown, two interlaced pairs I, 11 and 111, IV respectively each having a V-angle of substantially 120 degrees. Each cylinder may be fed by an individual carburetter, or each pair by a carburetter situated at the mid-point of a mutual admission pipe 16, but, as shown, a single carburetter situated at the mid-point 18 of a pipe 17 joining the mid-points of the pipes 16 feeds all the cylinders. The engine may be supercharged by one or more compressors. The cylinders may be water cooled, or air cooled by a crankshaft fan 7 or by their movement through the air when the engine is mounted in a vehicle. The pistons of each cylinder pair are so interconnected that one is at top dead centre when the other is at bottom dead centre. Each cylinder pair may have an individual camshaft 21 operating overhead valve rockers 19 through tappets 20, the shafts 21 being connected at their inner ends by chain gearing. Alternatively, each cylinder may be provided with a chain- or gear-driven overhead camshaft, or a single gear-driven camshaft may operate the valves of all the cylinders. A magneto 11 is crankshaft-driven by a belt 9.
GB1075/51A 1950-01-24 1951-01-15 Improvements in 4-stroke internal combustion engines having 4 cylinders Expired GB687687A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT687687X 1950-01-24

Publications (1)

Publication Number Publication Date
GB687687A true GB687687A (en) 1953-02-18

Family

ID=11310523

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1075/51A Expired GB687687A (en) 1950-01-24 1951-01-15 Improvements in 4-stroke internal combustion engines having 4 cylinders

Country Status (1)

Country Link
GB (1) GB687687A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014195063A1 (en) * 2013-06-05 2014-12-11 Bayerische Motoren Werke Aktiengesellschaft Reciprocating piston internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014195063A1 (en) * 2013-06-05 2014-12-11 Bayerische Motoren Werke Aktiengesellschaft Reciprocating piston internal combustion engine
US10024233B2 (en) 2013-06-05 2018-07-17 Bayerische Motoren Werke Aktiengesellschaft Reciprocating piston internal combustion engine

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