GB1447773A - Two-stroke cycle internal combustion engine - Google Patents

Two-stroke cycle internal combustion engine

Info

Publication number
GB1447773A
GB1447773A GB4321373A GB4321373A GB1447773A GB 1447773 A GB1447773 A GB 1447773A GB 4321373 A GB4321373 A GB 4321373A GB 4321373 A GB4321373 A GB 4321373A GB 1447773 A GB1447773 A GB 1447773A
Authority
GB
United Kingdom
Prior art keywords
scavenging
mixing chamber
air
fuel
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
Application number
GB4321373A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1447773A publication Critical patent/GB1447773A/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
    • 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
    • F02B2700/00—Measures relating to the combustion process without indication of the kind of fuel or with more than one fuel
    • F02B2700/03—Two stroke engines
    • F02B2700/037—Scavenging or charging channels or openings

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)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

1447773 Two-stroke engines; heating charge ROBERT BOSCH GmbH 14 Sept 1973 [15 Sept 1972] 43213/73 Heading F1B In a two-stroke I.C. engine, a first air volume is used for scavenging, and a second air volume is mixed with fuel and exhaust, scavenging and mixture ports are located so that towards the end of a combustion stroke the piston opens the scavenging and mixture ports one after the other so that during a cycle the scavenging air inlet preceeds mixture inlet. Approximately <SP>2</SP>/ 3 of the crank-case air enters via scavenging ports 8, Fig. 1 whilst the remainder is mixed with injected fuel in an exhaust gas heated mixing chamber 6 before entering the cylinder. A non-return valve 21, Fig. 2 prevents pressure fluctuations affecting the mixing chamber 6. In another embodiment a tube 25, Fig. 4 projecting into the crank-case serves as a mixing chamber in which fuel is injected in a direction against the air-flow.
GB4321373A 1972-09-15 1973-09-14 Two-stroke cycle internal combustion engine Expired GB1447773A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722245417 DE2245417A1 (en) 1972-09-15 1972-09-15 FUEL METERING SYSTEM FOR TWO-STROKE COMBUSTION MACHINES

Publications (1)

Publication Number Publication Date
GB1447773A true GB1447773A (en) 1976-09-02

Family

ID=5856482

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4321373A Expired GB1447773A (en) 1972-09-15 1973-09-14 Two-stroke cycle internal combustion engine

Country Status (11)

Country Link
JP (1) JPS5812455B2 (en)
BR (1) BR7307073D0 (en)
CS (1) CS174217B2 (en)
DE (1) DE2245417A1 (en)
ES (1) ES418767A1 (en)
FR (1) FR2163238A5 (en)
GB (1) GB1447773A (en)
IT (1) IT995382B (en)
PL (1) PL90707B1 (en)
RO (1) RO68952A (en)
SE (1) SE399584B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4401063A (en) * 1981-04-06 1983-08-30 The Bendix Corporation Fuel distribution system for an internal combustion engine
DE3330701A1 (en) * 1982-10-09 1984-04-12 Nippon Clean Engine Research Institute Co. Ltd., Kanazawa, Ishikawa TWO-STROKE COMBUSTION ENGINE
US4630591A (en) * 1982-02-17 1986-12-23 National Research Development Corporation Stratified charge internal combustion engines
US6631705B1 (en) 2000-07-10 2003-10-14 Lycoming Engines Modular fuel control apparatus

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2936043C2 (en) * 1979-09-06 1982-12-16 Toyota Jidosha Kogyo K.K., Toyota, Aichi Two-stroke petrol engine
FR2523211A1 (en) * 1982-03-10 1983-09-16 Eric Offenstadt Two stroke IC engine - has valve controlled air intake into crankcase and carburettor between crankcase and combustion chamber
JPS6168265A (en) * 1984-09-12 1986-04-08 Fuji Xerox Co Ltd Thermal head
JPH01198172A (en) * 1988-02-02 1989-08-09 Matsushita Graphic Commun Syst Inc Scanning device
US4981114A (en) * 1990-01-26 1991-01-01 Skopil Arnold O Stratified charge internal combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4401063A (en) * 1981-04-06 1983-08-30 The Bendix Corporation Fuel distribution system for an internal combustion engine
US4630591A (en) * 1982-02-17 1986-12-23 National Research Development Corporation Stratified charge internal combustion engines
DE3330701A1 (en) * 1982-10-09 1984-04-12 Nippon Clean Engine Research Institute Co. Ltd., Kanazawa, Ishikawa TWO-STROKE COMBUSTION ENGINE
US6631705B1 (en) 2000-07-10 2003-10-14 Lycoming Engines Modular fuel control apparatus

Also Published As

Publication number Publication date
DE2245417A1 (en) 1974-03-21
JPS5812455B2 (en) 1983-03-08
FR2163238A5 (en) 1973-07-20
PL90707B1 (en) 1977-01-31
RO68952A (en) 1982-05-10
CS174217B2 (en) 1977-03-31
BR7307073D0 (en) 1974-07-11
ES418767A1 (en) 1976-03-01
IT995382B (en) 1975-11-10
JPS4965411A (en) 1974-06-25
SE399584B (en) 1978-02-20

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees