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IT1278495B1 - Motore a due tempi con lavaggio del basamento. - Google Patents

Motore a due tempi con lavaggio del basamento.

Info

Publication number
IT1278495B1
IT1278495B1 IT95RM000407A ITRM950407A IT1278495B1 IT 1278495 B1 IT1278495 B1 IT 1278495B1 IT 95RM000407 A IT95RM000407 A IT 95RM000407A IT RM950407 A ITRM950407 A IT RM950407A IT 1278495 B1 IT1278495 B1 IT 1278495B1
Authority
IT
Italy
Prior art keywords
crankcase
washing
stroke engine
stroke
engine
Prior art date
Application number
IT95RM000407A
Other languages
English (en)
Inventor
Stephen Brian Glover
Original Assignee
Ricardo Consulting Eng
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 Ricardo Consulting Eng filed Critical Ricardo Consulting Eng
Publication of ITRM950407A0 publication Critical patent/ITRM950407A0/it
Publication of ITRM950407A1 publication Critical patent/ITRM950407A1/it
Application granted granted Critical
Publication of IT1278495B1 publication Critical patent/IT1278495B1/it

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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
    • F02B33/28—Component parts, details or accessories of crankcase pumps, not provided for in, or of interest apart from, subgroups F02B33/02 - F02B33/26
    • F02B33/30—Control of inlet or outlet ports
    • 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
    • F02B17/00—Engines characterised by means for effecting stratification of charge in 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
    • 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
    • F02B33/04—Engines with reciprocating-piston pumps; Engines with crankcase pumps with simple crankcase pumps, i.e. with the rear face of a non-stepped working piston acting as sole pumping member in co-operation with the crankcase
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/10—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel peculiar to scavenged two-stroke engines, e.g. injecting into crankcase-pump chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/16—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors
    • F02M69/18—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors the means being metering valves throttling fuel passages to injectors or by-pass valves throttling overflow passages, the metering valves being actuated by a device responsive to the engine working parameters, e.g. engine load, speed, temperature or quantity of air
    • F02M69/20—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors the means being metering valves throttling fuel passages to injectors or by-pass valves throttling overflow passages, the metering valves being actuated by a device responsive to the engine working parameters, e.g. engine load, speed, temperature or quantity of air the device being a servo-motor, e.g. using engine intake air pressure or vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
    • F02M7/12—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves
    • F02M7/14—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel spray nozzle
    • F02M7/16—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel spray nozzle operated automatically, e.g. dependent on exhaust-gas analysis
    • F02M7/17—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves with means for controlling cross-sectional area of fuel spray nozzle operated automatically, e.g. dependent on exhaust-gas analysis by a pneumatically adjustable piston-like element, e.g. constant depression carburettors
    • 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)
  • Fuel-Injection Apparatus (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
IT95RM000407A 1994-06-17 1995-06-16 Motore a due tempi con lavaggio del basamento. IT1278495B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9412181A GB9412181D0 (en) 1994-06-17 1994-06-17 Crankcase scavenged two-stroke engines

Publications (3)

Publication Number Publication Date
ITRM950407A0 ITRM950407A0 (it) 1995-06-16
ITRM950407A1 ITRM950407A1 (it) 1996-12-16
IT1278495B1 true IT1278495B1 (it) 1997-11-24

Family

ID=10756888

Family Applications (1)

Application Number Title Priority Date Filing Date
IT95RM000407A IT1278495B1 (it) 1994-06-17 1995-06-16 Motore a due tempi con lavaggio del basamento.

Country Status (4)

Country Link
US (1) US5503119A (it)
GB (2) GB9412181D0 (it)
IT (1) IT1278495B1 (it)
TW (1) TW251333B (it)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708666B1 (fr) * 1993-08-03 1995-10-13 Masse Jean Marc Dispositif d'alimentation en mélange air-carburant d'un moteur à explosion à deux temps.
EP0775811B1 (en) * 1995-11-24 2001-08-22 Yamaha Hatsudoki Kabushiki Kaisha Internal combustion engine
US5778838A (en) * 1995-11-29 1998-07-14 Yamaha Hatsudoki Kabushiki Kaisha Fuel supply device for crankcase chamber supercharged engine
TW358849B (en) * 1996-09-19 1999-05-21 Honda Motor Co Ltd 2-stroke internal combustion engine
JP3024072B2 (ja) * 1996-10-17 2000-03-21 財団法人石油産業活性化センター 層状掃気２サイクルエンジン
JP3630897B2 (ja) * 1997-02-10 2005-03-23 株式会社共立 ２サイクル内燃エンジン
US20080289488A1 (en) 1999-04-01 2008-11-27 Peter Robert Raffaele Reciprocating fluid machines
GB9810057D0 (en) 1998-05-11 1998-07-08 Ricardo Consulting Eng Crankcase scavenged two-stroke engines
US6273037B1 (en) * 1998-08-21 2001-08-14 Design & Manufacturing Solutions, Inc. Compressed air assisted fuel injection system
US6293235B1 (en) 1998-08-21 2001-09-25 Design & Manufacturing Solutions, Inc. Compressed air assisted fuel injection system with variable effective reflection length
US6298811B1 (en) * 1998-09-29 2001-10-09 Komatsu Zenoah Co. Stratified scavenging two-cycle engine
JP3153520B2 (ja) * 1998-10-30 2001-04-09 小松ゼノア株式会社 層状掃気２サイクルエンジン
US6578562B1 (en) * 1999-03-18 2003-06-17 Homelite Technologies, Ltd. High speed carburetion system for compressed air assisted injection
JP2001082153A (ja) * 1999-08-25 2001-03-27 Andreas Stihl:Fa 通気される掃気通路を備えた２サイクル機関
US6591793B2 (en) * 1999-11-12 2003-07-15 Maruyama Mfg. Co., Inc. Two-cycle engine
US6591792B2 (en) * 1999-11-12 2003-07-15 Maruyama Mfg. Co., Inc. Two-cycle engine
JP2001248473A (ja) * 2000-03-03 2001-09-14 Kawasaki Heavy Ind Ltd 内燃機関の燃料制御装置
AUPR045600A0 (en) * 2000-09-29 2000-10-26 Raffaele, Peter Robert Fluid devices
AUPR459501A0 (en) 2001-04-27 2001-05-24 Raffaele, Michael John Improvements in engines and components
CA2354200A1 (fr) * 2001-07-09 2003-01-09 Normand Beaudoin Moteur energetique a injection retroactive
US6564759B2 (en) 2001-08-28 2003-05-20 Homelite Technologies, Inc. Injection port for internal combustion engine
DE10220555B4 (de) * 2002-05-08 2013-06-27 Andreas Stihl Ag & Co. Verfahren zum Betrieb eines Zweitaktmotors und Zweitaktmotor
AT501986B1 (de) * 2004-07-21 2007-03-15 Kirchberger Roland Dipl Ing Dr Zweitakt-verbrennungsmotor
AR047546A1 (es) * 2004-11-17 2006-01-25 Juana Elisabeth Fabrega Motor de dos tiempos de autoencendido controlado
JP2006170207A (ja) * 2004-12-14 2006-06-29 Andreas Stihl Ag & Co Kg ２サイクルエンジン
US7331315B2 (en) * 2005-02-23 2008-02-19 Eastway Fair Company Limited Two-stroke engine with fuel injection
US20060243230A1 (en) * 2005-03-23 2006-11-02 Mavinahally Nagesh S Two-stroke engine
DE102005019761B4 (de) * 2005-04-28 2015-04-23 Andreas Stihl Ag & Co. Kg Membranvergaser
DE102006031685B4 (de) * 2005-08-11 2017-10-05 Andreas Stihl Ag & Co. Kg Verbrennungsmotor und Verfahren zu dessen Betrieb
US20100037874A1 (en) * 2008-08-12 2010-02-18 YAT Electrical Appliance Company, LTD Two-stroke engine emission control
WO2010035684A1 (ja) 2008-09-24 2010-04-01 株式会社マキタ 層状掃気２ストロークエンジン
IT1402621B1 (it) * 2010-10-22 2013-09-13 Emak Spa Motore a due tempi con sistema di iniezione del carburante assistito da aria compressa.
WO2012105216A1 (en) * 2011-01-31 2012-08-09 Hitachi Koki Co., Ltd. 2-cycle engine and engine-powered working machine having the same
JP2014047690A (ja) * 2012-08-30 2014-03-17 Hitachi Koki Co Ltd エンジン及びエンジン作業機
JP5922569B2 (ja) 2012-12-28 2016-05-24 株式会社マキタ 層状掃気２ストロークエンジン
DE102017102792B4 (de) 2017-02-13 2024-06-27 Ktm Ag Zweitaktbrennkraftmaschine
DE102018003476A1 (de) 2018-04-24 2019-10-24 Andreas Stihl Ag & Co. Kg Verbrennungsmotor und Verfahren zu dessen Betrieb

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1092042A (en) * 1908-07-21 1914-03-31 Franklin W Hagar Thermodynamic motor.
US1026425A (en) * 1911-01-07 1912-05-14 Frederick E Wadsworth Carbureter.
DE343867C (de) * 1920-05-08 1921-11-10 Hans Grade Verfahren zum Einspritzen von Brennstoff bei Zweitaktmotoren
US2893362A (en) * 1953-08-07 1959-07-07 American Brake Shoe Co Internal combustion engine having crankshaft driven rotary means for removing entrained liquid from fluid supplied to the firing chamber
US3190271A (en) * 1964-01-27 1965-06-22 Mcculloch Corp Fuel-air injection system for internal combustion engines
GB1142318A (en) * 1966-08-12 1969-02-05 Zenith Carburetter Company Ltd Improvements in or relating to carburetters
US4258670A (en) * 1977-10-21 1981-03-31 Georges Thery Method for feeding a combustion chamber of a two-stroke engine of the controlled ignition type and engine applying said method
GB2022699B (en) * 1978-05-12 1982-11-03 Univ Belfast Crankcase scavenged twostroke internal combustion engine
GB2115485B (en) * 1982-02-17 1987-01-07 Nat Res Dev Stratified charge engines
JPS60259756A (ja) * 1984-06-05 1985-12-21 Sanshin Ind Co Ltd 内燃機関の燃料供給装置
US4632788A (en) * 1985-06-25 1986-12-30 Jones James S Carburetor fuel feed system with bidirectional passage
JPH03179152A (ja) * 1989-12-06 1991-08-05 Sanshin Ind Co Ltd ２サイクル複数気筒エンジンの吸気装置
JPH06137181A (ja) * 1992-10-21 1994-05-17 Sanshin Ind Co Ltd 多気筒２ストロークエンジンの燃料噴射装置
US5379732A (en) * 1993-11-12 1995-01-10 Mavinahally; Nagesh S. Continuously variable volume scavenging passage for two-stroke engines

Also Published As

Publication number Publication date
ITRM950407A1 (it) 1996-12-16
TW251333B (en) 1995-07-11
GB2290349A (en) 1995-12-20
GB9412181D0 (en) 1994-08-10
ITRM950407A0 (it) 1995-06-16
GB9511787D0 (en) 1995-08-02
US5503119A (en) 1996-04-02

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Legal Events

Date Code Title Description
0001 Granted