US1664086A - Two-stroke internal-combustion engine - Google Patents

Two-stroke internal-combustion engine Download PDF

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Publication number
US1664086A
US1664086A US51218A US5121825A US1664086A US 1664086 A US1664086 A US 1664086A US 51218 A US51218 A US 51218A US 5121825 A US5121825 A US 5121825A US 1664086 A US1664086 A US 1664086A
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US
United States
Prior art keywords
pistons
cams
cylinders
combustion engine
ports
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 - Lifetime
Application number
US51218A
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English (en)
Inventor
Olsen Simon Dokk
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.)
OLSEN ENGINE SYNDICATE Ltd
Original Assignee
OLSEN ENGINE SYNDICATE Ltd
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 OLSEN ENGINE SYNDICATE Ltd filed Critical OLSEN ENGINE SYNDICATE Ltd
Application granted granted Critical
Publication of US1664086A publication Critical patent/US1664086A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F02B75/282—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders the pistons having equal strokes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/04—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis the piston motion being transmitted by curved surfaces
    • F01B3/045—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis the piston motion being transmitted by curved surfaces by two or more curved surfaces, e.g. for two or more pistons in one 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
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
    • F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines
    • 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
    • F02B75/26—Engines with cylinder axes coaxial with, or parallel or inclined to, main-shaft axis; Engines with cylinder axes arranged substantially tangentially to a circle centred on main-shaft axis
    • 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

Definitions

  • This invention has reference to internal combustion engines and is designed to provide an engine of the two-stroke valveless type with opposed pistons, which shall be 5 very simple and cheap in construction as well as economical in fuel and be capable of c working with a sparking plugand fuel injector instead of a carburettor.
  • Fig. 2 is'a side viewof a two cylinder-engine according to the invent on, adapted to work on the two-stroke principle without a carburettor;
  • a a are the cylinders which are provided. with; o positely ,moving pistons b. These cyhn are are formed or fitted parallel with each other in 55 a suitable casmg a, prov ft lies parallel with and 3) ion is that" assages which act to'a considerable ided with water jackets (l, and have inlet and exhaust ports 6 and e.
  • the casing has 'two hollow end covers 7' to enclose or house the cams at the centres of which covers are provided ballbearlngs g for-the main shaft k, that is to say the shaft carrying the cylindricalvend cams i which serve to set up rotary motion lnsteadof cranks.
  • Each of the cylindrical or drum-likevend cams has an upstanding lip ktthe inner side of which forms the main or workin-g-cam-. track, while the outer side forms a shallower parallel auxiliary track.
  • the pistons 12 are of the ordinary hollow-type, and each carries a air of bevelled anti-friction rollers Z, m between which the aforesaid lip k of the cam lies, so that they act onv both sides of the latter.
  • These rollers are carried by axle pins l, 7m. secured in the mouth of the istons, as shown, the axle 1 being inclined and the rollers I having anti-friction-bearings l;
  • the outer roller m is smaller thanthe other' or main roller as it is merely to enable the cam to guide or draw the piston along when stantin up, the engine.
  • a small gap, e -way. or gate k is. formed in th'e'li It; or instance at the neutral or flat portion of the'cam track where it will not effect the running.
  • This gap need onl be as wide asthe smaller or aux- 10o 'iliary ro ler. It is to enable this latter roller to pass through if it be desired to take the cam ofi the end of the shaft to permit the pistons to be drawn outor for other par steady and effective for the pistons 110 6.
  • Corresponding recesses b are formed in the mouths of the pistons.
  • the pistons come fairly close to ether (see bottom of Fig. 1) when forced inward by 8 the main cam z, and the space between them forms the compression and explosion chamher, a sparkingplug 0 and an injector device t being inserted, through the side .wall of each cylinder into the compression chamber.
  • the plugs are connected to a magneto which may be worked by a skew-gear q. as shown.
  • the fuel injector t is similar to the double acting injector described in my pending United States patent application Serial'No. 16,457 filed 18'March 1925.
  • Each of these injectors is operated by a cam uon the main shaft, acting counter to a spring through a bell-crank lever 11 pivoted on a short axle v.
  • the injectors t draw the fuel oil from the float chamber on through a regulating valve 'w and inJect it into the cylinders practicallyas vapour.
  • the injection takes place after the lston has closed the outlet and inlet ports.
  • the float chamber w may be mounted in any suitable way. For instance it may be secured to a part of the chassis 112 as; shown, or to a bracket on the engine frame.
  • the regulating'valve has a se arate pipe connection w: leading to each in ector. l
  • a hand-lever a pivoted also on v is provided for working the levers v and so.
  • hperthe vera as a heel 0: adapted to engage and operate the levers 'v alternately.
  • each lever '12 is forked, the tubular guide I) of the injector stem t passing through such fork.
  • the said "fork acts against the lower end of the spring-barrel t in order to lift the injector plunger t and. compress the spring.”
  • the group of ports e e at-each end of the cylinder form ractically one large annular port.
  • the in et ports 6 (on the right) open nto an annular chamber or compartmentv 1' in ,communicationwith a main in let or flanged opening r leading in from the air compressor or blower.
  • the exhaust ports a (on the left) communicate with a similar chamber 8' leading to the discharge outlet s which chamber owingftoits large capacity acts as a silencer.
  • the hain or end cams z' are so shaped as that the pistons uncover the exhaust ports in-such a way as to allow the spent gases toescape 811% a fresh supply of air frdm thev blower. to ta e their place, after whichsaid exhaust ports are closed whilst the superto charge isbeing admitted throu h the inlet rts, which remain opexr later t an the exaust ports.
  • rollers car ried on inclined axles inthe mouths of said pistons and engaging the inner sides of tracks on the cams, said cam tracks being formed by upstanding lips on the cams,
  • outer rollers also carried by the projecting mouths of the pistons and engaging the outer sides of the cam tracks, and slots or gaps in said tracks through which the rollers can pass when withdrawing the pistons,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Transmission Devices (AREA)
US51218A 1924-09-05 1925-08-19 Two-stroke internal-combustion engine Expired - Lifetime US1664086A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20981/24A GB248410A (en) 1924-09-05 1924-09-05 Improvements in or relating to two-stroke internal-combustion engines

Publications (1)

Publication Number Publication Date
US1664086A true US1664086A (en) 1928-03-27

Family

ID=10155131

Family Applications (1)

Application Number Title Priority Date Filing Date
US51218A Expired - Lifetime US1664086A (en) 1924-09-05 1925-08-19 Two-stroke internal-combustion engine

Country Status (3)

Country Link
US (1) US1664086A (fr)
FR (1) FR608931A (fr)
GB (1) GB248410A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611349A (en) * 1950-01-18 1952-09-23 Res Engineering Corp Opposed piston internal-combustion engine
US6662775B2 (en) 1999-03-23 2003-12-16 Thomas Engine Company, Llc Integral air compressor for boost air in barrel engine
US6698394B2 (en) 1999-03-23 2004-03-02 Thomas Engine Company Homogenous charge compression ignition and barrel engines
US8046299B2 (en) 2003-10-15 2011-10-25 American Express Travel Related Services Company, Inc. Systems, methods, and devices for selling transaction accounts
NL2007988C2 (en) * 2011-12-16 2013-06-18 Griend Holding B V Cam follower with an angled axis of rotation.
WO2018140082A1 (fr) * 2016-01-25 2018-08-02 Riazati Bahador Moteur à combustion interne

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8404159D0 (en) * 1984-02-17 1984-03-21 Sophocles Papanicolacu J P Ic engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611349A (en) * 1950-01-18 1952-09-23 Res Engineering Corp Opposed piston internal-combustion engine
US6662775B2 (en) 1999-03-23 2003-12-16 Thomas Engine Company, Llc Integral air compressor for boost air in barrel engine
US6698394B2 (en) 1999-03-23 2004-03-02 Thomas Engine Company Homogenous charge compression ignition and barrel engines
US8046299B2 (en) 2003-10-15 2011-10-25 American Express Travel Related Services Company, Inc. Systems, methods, and devices for selling transaction accounts
NL2007988C2 (en) * 2011-12-16 2013-06-18 Griend Holding B V Cam follower with an angled axis of rotation.
WO2018140082A1 (fr) * 2016-01-25 2018-08-02 Riazati Bahador Moteur à combustion interne

Also Published As

Publication number Publication date
FR608931A (fr) 1926-08-05
GB248410A (en) 1926-03-05

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