GB576207A - Improvements in or relating to miniature internal combustion engines - Google Patents

Improvements in or relating to miniature internal combustion engines

Info

Publication number
GB576207A
GB576207A GB788044A GB788044A GB576207A GB 576207 A GB576207 A GB 576207A GB 788044 A GB788044 A GB 788044A GB 788044 A GB788044 A GB 788044A GB 576207 A GB576207 A GB 576207A
Authority
GB
United Kingdom
Prior art keywords
crank
case
cylinders
engine
cylinder
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
GB788044A
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.)
LAWRENCE HENRY SPAREY
Original Assignee
LAWRENCE HENRY SPAREY
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 LAWRENCE HENRY SPAREY filed Critical LAWRENCE HENRY SPAREY
Priority to GB788044A priority Critical patent/GB576207A/en
Publication of GB576207A publication Critical patent/GB576207A/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
    • 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
    • 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
    • F02B75/24—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type
    • F02B75/246—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type with only one crankshaft of the "pancake" type, e.g. pairs of connecting rods attached to common crankshaft bearing
    • 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
    • F02B75/34—Ultra-small engines, e.g. for driving models
    • 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
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • 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
    • F02B2075/1808—Number of cylinders two

Landscapes

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

Abstract

576,207. Miniature engines. SPAREY, L. H. April 27, 1944, No. 7880. [Classes 7 (ii), 7 (iii) and 7 (v)] A miniature engine, particularly suitable as a two-stroke engine for use in model aeroplanes and boats, has one or more cylinders and fuel tanks radiating from the crank-case. As shown, the single cylinder engine has a fuel tank 33 diametrically opposed to the cylinder 21 so as to assimilate an opposed cylinder engine, the tank being made the same size as the cylinder and having fins 35. The invention is also applicable to radial-cylinder engines. The carburetter comprises a telescopic air inlet passage 39 which extends outside the model so as to be capable of being closed by a finger to facilitate starting and a nozzle at the end of a pipe 40 through which fuel is drawn by engine suction, the delivery being controlled by a needle valve on the end of a long shaft 43 which can be adjusted by a knob 46 outside the model. The crank-case is open on one side to allow the crank-shaft, which has a bearing only on the other side, to be assembled. After assembly, the crank-case is closed by a disc plate projecting into the crank chamber. The supply of mixture to the crank-case is controlled by a disc valve 15, or a sleeve valve, and the mixture after compression by the piston is conveyed to the combustion chamber by a transfer passage 23 and port 25, a piston baffle 30 being provided. An ignition cut-out lever which extends outside the model is attached to the normally stationary contact of a make and break device but has enough flexibility to be capable of flexing to prevent the contact points from opening. A twin cylinder engine is also described, the cylinders being arranged at less than 180‹ to one another, preferably at 90‹ and the fuel tank extending from the bottom of the crank-case. Both cylinders fire together, the crank case serving as a common induction chamber. This arrangement may be modified by dividing the crank case into separate chambers, each chamber having a separate disc valve and the cylinders being fired separately. The cylinders may have detachable heads and be formed integrally with both the fuel tank and the crank-case.
GB788044A 1944-04-27 1944-04-27 Improvements in or relating to miniature internal combustion engines Expired GB576207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB788044A GB576207A (en) 1944-04-27 1944-04-27 Improvements in or relating to miniature internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB788044A GB576207A (en) 1944-04-27 1944-04-27 Improvements in or relating to miniature internal combustion engines

Publications (1)

Publication Number Publication Date
GB576207A true GB576207A (en) 1946-03-22

Family

ID=9841552

Family Applications (1)

Application Number Title Priority Date Filing Date
GB788044A Expired GB576207A (en) 1944-04-27 1944-04-27 Improvements in or relating to miniature internal combustion engines

Country Status (1)

Country Link
GB (1) GB576207A (en)

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