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GB1386363A - Two-stroke internal combustion engine - Google Patents

Two-stroke internal combustion engine

Info

Publication number
GB1386363A
GB1386363A GB661572A GB661572A GB1386363A GB 1386363 A GB1386363 A GB 1386363A GB 661572 A GB661572 A GB 661572A GB 661572 A GB661572 A GB 661572A GB 1386363 A GB1386363 A GB 1386363A
Authority
GB
United Kingdom
Prior art keywords
valves
recess
cylinder
combustion
feb
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
GB661572A
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
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 Individual filed Critical Individual
Publication of GB1386363A publication Critical patent/GB1386363A/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
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/14—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • 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

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)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

1386363 Two stroke I C engines S ONISHI 11 Feb 1972 [25 Feb 1971] 6615/72 Heading FIB A two stroke electrical ignition type I. C. engine comprises an exhaust, port 4 and a scavenging port 3 opened and closed by the motion of a piston 2 in a cylinder 1, a combustion recess 15 in cylinder head 14 being located in the central region thereof and shaped to gradually deepen in the intended direction of gas flow, the open end of the recess not being narrower than any portion of it within the cylinder head and the engine also comprising valves 8, 6 to control the rate of fuel supply and exhaust gas flow, the valves being connected to open or close in conjunction with one another. The combustion chamber is shaped so that as the piston approaches t.d.c. the mixture is squished into the recess 15. The size of pre-chamber 20 upstream of valve 6 is chosen to assist efficient combustion and smooth running. The coupling of valves 7 and 8 also allows operation with a lower compression ratio than otherwise. Instead of supplying fuel via a carburetter 26, the fuel may be injected into the intake pipe, the crank-case or into the cylinder.
GB661572A 1971-02-25 1972-02-11 Two-stroke internal combustion engine Expired GB1386363A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46009703A JPS5014681B1 (en) 1971-02-25 1971-02-25

Publications (1)

Publication Number Publication Date
GB1386363A true GB1386363A (en) 1975-03-05

Family

ID=11727581

Family Applications (1)

Application Number Title Priority Date Filing Date
GB661572A Expired GB1386363A (en) 1971-02-25 1972-02-11 Two-stroke internal combustion engine

Country Status (9)

Country Link
US (1) US3817227A (en)
JP (1) JPS5014681B1 (en)
CA (1) CA962603A (en)
DE (2) DE2208200A1 (en)
FR (1) FR2127825A5 (en)
GB (1) GB1386363A (en)
IT (1) IT951033B (en)
SE (1) SE377707B (en)
SU (1) SU556737A3 (en)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062331A (en) * 1972-08-22 1977-12-13 Performance Industries, Inc. Two cycle internal combustion engine
JPS5091891U (en) * 1973-12-21 1975-08-02
US3969895A (en) * 1974-06-24 1976-07-20 John Krizman Power control valve attachment for two cycle motorcycle type engine exhaust systems
US4121552A (en) * 1974-09-17 1978-10-24 Yamaha Hatsudoki Kabushiki Kaisha Exhaust means for two cycle engines
US3978839A (en) * 1974-12-18 1976-09-07 Outboard Marine Corporation Primer system for internal combustion engine
GB1591050A (en) * 1976-08-25 1981-06-10 Onishi S Internal combustion engine
US4185598A (en) * 1976-08-25 1980-01-29 Toyota Jidosha Kogyo Kabushiki Kaisha Internal combustion engine
US4250856A (en) * 1980-01-25 1981-02-17 Abbey Harold Fuel-air ratio automatic control system using variable venturi structure
US4180029A (en) * 1976-12-29 1979-12-25 Toyota Jidosha Kogyo Kabushiki Kaisha 2-Cycle engine of an active thermoatmosphere combustion
GB2008191B (en) * 1977-11-18 1982-05-12 Nippon Soken Uniflow two cycle internal combustion engines and methods of operating such engines
US4660514A (en) * 1980-04-21 1987-04-28 Outboard Marine Corporation Two-cycle internal combustion engine including means for varying cylinder port timing
JPS5872614A (en) * 1981-10-23 1983-04-30 Nippon Clean Engine Res Ignition and combustion method of internal-combustion engine
USRE32802E (en) * 1984-12-31 1988-12-20 Cummins Engine Company, Inc. Two-cycle engine with improved scavenging
DE3617317C2 (en) * 1985-05-24 1996-10-31 Orbital Eng Pty Two-stroke internal combustion engine
JPH07109170B2 (en) * 1985-11-26 1995-11-22 ヤマハ発動機株式会社 Exhaust system for multi-cylinder engine
JPH0778370B2 (en) * 1985-11-26 1995-08-23 ヤマハ発動機株式会社 4-stroke engine controller
JPH0730703B2 (en) * 1986-03-07 1995-04-10 ヤマハ発動機株式会社 Engine exhaust control device
US4840029A (en) * 1986-03-07 1989-06-20 Yamaha Hatsudoki Kabushiki Kaisha Exhaust gas control means for engine
US4795420A (en) * 1986-03-07 1989-01-03 Yamaha Hatsudoki Kabushiki Kaisha Exhaust gas control means for engine
JPH0819853B2 (en) * 1986-09-13 1996-02-28 ヤマハ発動機株式会社 Engine exhaust control device
DE3777949D1 (en) * 1986-10-27 1992-05-07 Yamaha Motor Co Ltd EXHAUST GAS CONTROL DEVICE, IN PARTICULAR FOR MOTORCYCLE.
US4896504A (en) * 1986-12-03 1990-01-30 Yamaha Matsudoki Kabushiki Kaisha Exhaust gas control device for engines
US4831823A (en) * 1987-02-24 1989-05-23 Yamada Hatsudoki Kabushiki Kaisha Exhaust gas control means for motorcycle and the like
US4766854A (en) * 1987-06-19 1988-08-30 Brunswick Corporation Exhaust valve throttling mechanism for two-stroke engine
US4999999A (en) * 1987-09-14 1991-03-19 Yamaha Hatsudoki Kabushiki Kaisha Exhaust gas control device for motorcycles
US4995349A (en) * 1988-02-08 1991-02-26 Walbro Corporation Stratified air scavenging in two-stroke engine
US4860538A (en) * 1988-02-23 1989-08-29 Yamaha Hatsudoki Kabushiki Kaisha Exhaust gas control means for motorcycle and the like
US5027758A (en) * 1990-07-09 1991-07-02 Frederick Siegler Fuel system for crankcase scavenged two cycle spark ignition engines
DE4241429A1 (en) * 1992-12-09 1994-06-30 Svein Wieneke Opto-electronic control for 2-stroke combustion engine outlet valve
US5692468A (en) * 1995-07-25 1997-12-02 Outboard Marine Corporation Fuel-injected internal combustion engine with improved combustion
US6435159B1 (en) 2000-05-10 2002-08-20 Bombardier Motor Corporation Of America Fuel injected internal combustion engine with reduced squish factor
JP4803059B2 (en) * 2007-02-07 2011-10-26 トヨタ自動車株式会社 Cylinder head of internal combustion engine
DE102008038915B4 (en) * 2008-08-13 2011-05-19 3W-Modellmotoren Gmbh Two-stroke engine and method of operating a two-stroke engine
US8038130B2 (en) * 2008-08-13 2011-10-18 3W-Modellmotoren Gmbh Two-stroke engine and method for operating a two-stroke engine
JP4527804B1 (en) * 2009-12-01 2010-08-18 金幸 植木 How to modify a two-cycle engine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE17176C (en) * F. CHEESWRIGHT in London Innovations in railway signaling devices
US1299895A (en) * 1918-05-01 1919-04-08 William F Fischer Internal-combustion engine.
FR572529A (en) * 1922-11-22 1924-06-07 Improvements in two-stroke internal combustion engines
US1780635A (en) * 1929-03-21 1930-11-04 Owen H Spencer Choke means for two-cycle engines
US2041708A (en) * 1931-01-20 1936-05-26 H B Motor Corp Combustion engine
US2064983A (en) * 1934-06-08 1936-12-22 Lesage Alfred Two stroke piston-controlled engine
DE865233C (en) * 1940-06-21 1953-02-02 Auto Union A G Mixture compressing two-stroke internal combustion engine
FR918385A (en) * 1945-03-24 1947-02-06 Saurer Ag Adolph Timing system for two-stroke injection engine
FR67520E (en) * 1955-02-02 1958-03-13 Auto Union Gmbh Two-stroke internal combustion engine, in particular for motor vehicles
US3400702A (en) * 1966-04-28 1968-09-10 Outboard Marine Corp Idling arrangement for internal combustion engine

Also Published As

Publication number Publication date
SU556737A3 (en) 1977-04-30
DE2208200A1 (en) 1972-10-26
JPS5014681B1 (en) 1975-05-29
SE377707B (en) 1975-07-21
IT951033B (en) 1973-06-30
CA962603A (en) 1975-02-11
FR2127825A5 (en) 1972-10-13
US3817227A (en) 1974-06-18
DE7206510U (en) 1976-11-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee