ES2189417T3 - Motores de dos tiempos con barrido en en carter. - Google Patents

Motores de dos tiempos con barrido en en carter.

Info

Publication number
ES2189417T3
ES2189417T3 ES99919443T ES99919443T ES2189417T3 ES 2189417 T3 ES2189417 T3 ES 2189417T3 ES 99919443 T ES99919443 T ES 99919443T ES 99919443 T ES99919443 T ES 99919443T ES 2189417 T3 ES2189417 T3 ES 2189417T3
Authority
ES
Spain
Prior art keywords
duct
fuel
throttling valve
passage
passages
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
ES99919443T
Other languages
English (en)
Inventor
Stephen Brian Glover
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.)
Ricardo PLC
Original Assignee
Ricardo Consulting Engineers 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 Ricardo Consulting Engineers Ltd filed Critical Ricardo Consulting Engineers Ltd
Application granted granted Critical
Publication of ES2189417T3 publication Critical patent/ES2189417T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F02M13/00—Arrangements of two or more separate carburettors; Carburettors using more than one fuel
    • F02M13/02—Separate carburettors
    • F02M13/04—Separate carburettors structurally united
    • 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
    • F02B25/20—Means for reducing the mixing of charge and combustion residues or for preventing escape of fresh charge through outlet ports not provided for in, or of interest apart from, subgroups F02B25/02 - F02B25/18
    • F02B25/22—Means for reducing the mixing of charge and combustion residues or for preventing escape of fresh charge through outlet ports not provided for in, or of interest apart from, subgroups F02B25/02 - F02B25/18 by forming air cushion between charge and combustion residues
    • 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
    • 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)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Steroid Compounds (AREA)

Abstract

Un motor de dos tiempos del tipo de barrido en el cárter que incluye un pistón montado en forma alternativa en un cilindro, teniendo la pared del cilindro una lumbrera de escape y una lumbrera de transferencia trasera opuesta a la misma y formada en el mismo, en el que la lumbrera de transferencia trasera se comunica con el interior del cárter a través de un canal de trans- ferencia trasero, estando configurada la lumbrera de transferencia trasera para abrirse antes de que se cierre la lumbrera de escape por lo que durante la utilización el cilindro es barrido, un conducto de admisión dispuesto para suministrar aire de combustión al cárter, una válvula de mariposa del acelerador dispuesta para regular el flujo de aire a través del conducto de admisión, y un carburador dispuesto para suministrar combustible al conducto de admisión, caracterizado porque el interior del cárter está dividido al menos en dos volúmenes del cárter separados, un volumen de mezcla rica y un volumen de mezcla pobre, en que cada volumen del cárter se comunica con el cilindro a través de un agujero respectivo en la pa- red del cárter, porque la pared del cilindro tiene también al menos una lumbrera de transferencia lateral formada en el mismo entre la lumbrera de transferencia trasera y la lumbrera de escape, estando dispuesta la lumbrera de transferencia lateral para abrirse antes de que se cierre la lumbrera de escape, porque la lumbrera de transferencia lateral se comunica con el volumen de mezcla rica a través de un canal de transferencia lateral, porque la lumbrera de transferencia trasera se comunica con el volumen de mezcla rica, porque el conducto de admisión está dividido al menos en parte a través de su longitud en al menos dos canales de admisión, un canal de mezcla rica y un conductor de mezcla pobre, que se comunican con el volumen de mezcla rica y el volumen de mezcla pobre, respectivamente, y porque el carburador y/o la válvula del acelerador están construidos y dispuestos de tal forma que, bajo un funcionamiento con alta carga, substancialmente todo el combustible suministrado por el carburador sea introducido en el canal de mezcla rica, y que bajo un funcionamiento de carga baja, una proporción menor del combustible suministrado por el carburador es introducido en el canal de mezcla rica, introduciéndose el combustible en ambos canales de mezcla rica y mezcla pobre.
ES99919443T 1998-05-11 1999-05-06 Motores de dos tiempos con barrido en en carter. Expired - Lifetime ES2189417T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9810057.1A GB9810057D0 (en) 1998-05-11 1998-05-11 Crankcase scavenged two-stroke engines

Publications (1)

Publication Number Publication Date
ES2189417T3 true ES2189417T3 (es) 2003-07-01

Family

ID=10831834

Family Applications (2)

Application Number Title Priority Date Filing Date
ES02076150T Expired - Lifetime ES2220874T3 (es) 1998-05-11 1999-05-06 Carburadores para motores de dos tiempos.
ES99919443T Expired - Lifetime ES2189417T3 (es) 1998-05-11 1999-05-06 Motores de dos tiempos con barrido en en carter.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES02076150T Expired - Lifetime ES2220874T3 (es) 1998-05-11 1999-05-06 Carburadores para motores de dos tiempos.

Country Status (9)

Country Link
US (2) US6101991A (es)
EP (2) EP1221545B1 (es)
JP (2) JP3396814B2 (es)
AT (2) ATE266807T1 (es)
DE (2) DE69904467T2 (es)
DK (2) DK1221545T3 (es)
ES (2) ES2220874T3 (es)
GB (1) GB9810057D0 (es)
WO (1) WO1999058829A1 (es)

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DE69820443T2 (de) * 1997-06-11 2004-10-07 Komatsu Zenoa Kk Schichtspülung für zweitaktmotoren
GB9803554D0 (en) * 1998-02-20 1998-04-15 Johnson Matthey Plc Improvements in automotive catalysts
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
JP2001082154A (ja) * 1999-08-25 2001-03-27 Andreas Stihl:Fa 空気掃気される掃気通路を備えた２サイクル機関
US6427646B2 (en) * 2000-01-27 2002-08-06 Walbro Corporation Small engine fuel injection system
DE20020655U1 (de) 2000-12-06 2001-02-22 Dolmar Gmbh Zweitaktmotor mit Frischgasvorlage und Flansch für einen Zweitaktmotor
DE10158397B4 (de) * 2001-11-28 2014-11-06 Andreas Stihl Ag & Co. Verfahren zur Herstellung eines Zylinders in einem Zweitaktmotor
US7100551B2 (en) * 2001-12-10 2006-09-05 Andreas Stihl Ag & Co. Kg Two-cycle engine with forward scavenging air positioning and single-flow carburetor
DE10160539B4 (de) * 2001-12-10 2017-06-08 Andreas Stihl Ag & Co. Zweitaktmotor mit Spülvorlage und einflutigem Vergaser
DE10161908A1 (de) 2001-12-17 2003-06-18 Stihl Maschf Andreas Handgeführtes Arbeitsgerät
DE10206336B4 (de) 2002-02-14 2004-10-07 Bauerhin, I.G. Elektrisches Heizelement für Sitzheizungen und Lenkradheizungen
DE10230108B4 (de) * 2002-07-04 2004-06-24 Meta Motoren- Und Energie-Technik Gmbh Vorrichtung zum Verstellen des Hubs eines von einer Nockenwelle betätigten Ventils
DE10232341A1 (de) * 2002-07-17 2004-02-05 Andreas Stihl Ag & Co. Vergaser
US6901892B2 (en) * 2002-08-03 2005-06-07 Nagesh S. Mavinahally Two stroke engine with rotatably modulated gas passage
GB2394255B (en) 2002-09-18 2005-04-27 Stihl Ag & Co Kg Andreas Induction device
GB2404950B (en) * 2002-09-18 2005-04-13 Stihl Ag & Co Kg Andreas Induction device
DE10312096B4 (de) * 2003-03-19 2014-01-16 Andreas Stihl Ag & Co. Kg Zweitaktmotor
US7104526B2 (en) * 2003-06-10 2006-09-12 Homelite Technologies, Ltd. Carburetor with intermediate throttle valve blocking position
US8516989B2 (en) * 2003-09-02 2013-08-27 Andreas Stihl Ag & Co. Kg Internal combustion engine having an elastic connecting duct
DE20313567U1 (de) * 2003-09-02 2003-10-30 Stihl Ag & Co Kg Andreas Elastischer Verbindungsstutzen
DE10341230B4 (de) * 2003-09-08 2022-10-13 Andreas Stihl Ag & Co. Kg Ansaugvorrichtung
GB0321828D0 (en) * 2003-09-18 2003-10-15 Ricardo Uk Ltd Various improvements to a two stroke split carburettor
GB0322858D0 (en) * 2003-09-30 2003-10-29 Ricardo Uk Ltd A carburettor
DE10362394B3 (de) * 2003-10-01 2017-03-02 Andreas Stihl Ag & Co. Kg Vergaseranordnung
DE10362372B3 (de) * 2003-10-01 2016-02-11 Andreas Stihl Ag & Co. Kg Vergaseranordnung
DE10345653B4 (de) * 2003-10-01 2013-02-28 Andreas Stihl Ag & Co. Kg Vergaseranordnung
US6973899B2 (en) * 2004-02-23 2005-12-13 Electrolux Home Products, Inc. Stratified air scavenged two-cycle engine with air flow
DE102004009310B4 (de) * 2004-02-26 2012-10-04 Andreas Stihl Ag & Co. Kg Ansaugvorrichtung
GB0407921D0 (en) * 2004-04-07 2004-05-12 Ricardo Uk Ltd Carburettor
GB0426027D0 (en) 2004-11-26 2004-12-29 Ricardo Uk Ltd Yet even further improvements to air flow in a split carburettor two stroke engine
DE102004061397B4 (de) * 2004-12-21 2015-06-11 Andreas Stihl Ag & Co. Kg Walzenvergaser mit Luftkanal und Gemischkanal
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
DE102005015164B4 (de) * 2005-04-02 2014-04-17 Andreas Stihl Ag & Co. Kg Zweitaktmotor
JP4595726B2 (ja) * 2005-07-21 2010-12-08 日産自動車株式会社 吸気装置
GB0517236D0 (en) * 2005-08-23 2005-09-28 Ricardo Uk Ltd A split carburettor with offset throttle plate
US7325791B2 (en) * 2005-09-15 2008-02-05 Zama Japan Co., Ltd. Carburetor for stratified scavenging two-cycle engine
IES20060353A2 (en) * 2006-05-05 2007-10-17 Barcarole Ltd A carburetor
GB0614559D0 (en) 2006-07-21 2006-08-30 Ricardo Uk Ltd Carburettors
JP5111001B2 (ja) * 2006-08-09 2012-12-26 アンドレアス シュティール アクチエンゲゼルシャフト ウント コンパニー コマンディートゲゼルシャフト 内燃エンジン
CN101512137B (zh) 2006-09-14 2012-01-18 胡斯华纳有限公司 燃料供应组件
US7523922B2 (en) * 2007-03-16 2009-04-28 Zama Japan Kabushiki Kaisha Carburetor for stratified charge two-cycle engine
US20080302332A1 (en) * 2007-06-05 2008-12-11 Walbro Engine Management, L.L.C. Split-bore stratified charge carburetor
DE102008006681A1 (de) 2008-01-30 2009-08-06 Andreas Stihl Ag & Co. Kg Verbrennungsmotor mit einem elastischen Verbindungsstutzen und Verfahren zur Herstellung eines elastischen Verbindungsstutzens
DE102008012536B4 (de) * 2008-03-04 2020-07-30 Andreas Stihl Ag & Co. Kg Verfahren zum Betrieb eines Zweitaktmotors
KR101449065B1 (ko) 2009-11-19 2014-10-08 현대자동차주식회사 엔진의 흡기효율 증대장치
WO2012002859A1 (en) * 2010-07-01 2012-01-05 Husqvarna Ab Method of delivering start-up fuel to an internal combustion engine
AU2010241402B1 (en) * 2010-11-12 2011-11-24 Cits Engineering Pty Ltd Two-Stroke Engine Porting Arrangement
US20120247442A1 (en) * 2011-04-03 2012-10-04 Mavinahally Nagesh S Stratified two-stroke engine
CN102392760A (zh) * 2011-08-26 2012-03-28 山东华盛农业药械有限责任公司 二冲程分层扫气发动机化油器
CN102322333A (zh) * 2011-08-26 2012-01-18 山东华盛农业药械有限责任公司 一种二冲程分层扫气发动机
DE102012004322B4 (de) * 2012-03-03 2021-08-26 Andreas Stihl Ag & Co. Kg Zweitaktmotor mit einer Ansaugvorrichtung
JP7242322B2 (ja) * 2019-02-06 2023-03-20 株式会社やまびこ 始動燃料供給装置及びエンジン作業機
US11255321B1 (en) 2019-04-30 2022-02-22 Northwest Uld, Inc. UAV propulsion system with dual rotary valves and multi-compartment crankcase

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Also Published As

Publication number Publication date
DE69904467T2 (de) 2003-10-30
EP1221545B1 (en) 2004-05-12
ATE229617T1 (de) 2002-12-15
GB9810057D0 (en) 1998-07-08
ES2220874T3 (es) 2004-12-16
EP1221545A2 (en) 2002-07-10
ATE266807T1 (de) 2004-05-15
DK1221545T3 (da) 2004-09-06
JP3687071B2 (ja) 2005-08-24
US6101991A (en) 2000-08-15
USRE39506E1 (en) 2007-03-13
EP1221545A3 (en) 2002-07-31
DE69904467D1 (de) 2003-01-23
WO1999058829A1 (en) 1999-11-18
EP1078151B1 (en) 2002-12-11
DE69917345T2 (de) 2005-05-04
JP2003074352A (ja) 2003-03-12
DK1078151T3 (da) 2003-04-07
JP2002514708A (ja) 2002-05-21
DE69917345D1 (de) 2004-06-17
JP3396814B2 (ja) 2003-04-14
EP1078151A1 (en) 2001-02-28

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