EP2115276B1 - Improved two-stroke engine - Google Patents

Improved two-stroke engine Download PDF

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Publication number
EP2115276B1
EP2115276B1 EP08709311.8A EP08709311A EP2115276B1 EP 2115276 B1 EP2115276 B1 EP 2115276B1 EP 08709311 A EP08709311 A EP 08709311A EP 2115276 B1 EP2115276 B1 EP 2115276B1
Authority
EP
European Patent Office
Prior art keywords
piston
cylinder
inlet valve
piston rod
inlet
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.)
Active
Application number
EP08709311.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2115276A1 (en
Inventor
Håkan NYNÄS
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.)
Wartsila Finland Oy
Original Assignee
Wartsila Finland Oy
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 Wartsila Finland Oy filed Critical Wartsila Finland Oy
Publication of EP2115276A1 publication Critical patent/EP2115276A1/en
Application granted granted Critical
Publication of EP2115276B1 publication Critical patent/EP2115276B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/24—Pistons  having means for guiding gases in cylinders, e.g. for guiding scavenging charge in two-stroke engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L11/00—Valve arrangements in working piston or piston-rod
    • F01L11/02—Valve arrangements in working piston or piston-rod in piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/36—Valve-gear or valve arrangements, e.g. lift-valve gear peculiar to machines or engines of specific type other than four-stroke cycle
    • F01L1/38—Valve-gear or valve arrangements, e.g. lift-valve gear peculiar to machines or engines of specific type other than four-stroke cycle for engines with other than four-stroke cycle, e.g. with two-stroke cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • 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
    • F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F01L9/16—Pneumatic means
EP08709311.8A 2007-03-08 2008-02-06 Improved two-stroke engine Active EP2115276B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20075162A FI120212B (fi) 2007-03-08 2007-03-08 Parannettu kaksitahtimoottori
PCT/FI2008/050043 WO2008107515A1 (en) 2007-03-08 2008-02-06 Improved two-stroke engine

Publications (2)

Publication Number Publication Date
EP2115276A1 EP2115276A1 (en) 2009-11-11
EP2115276B1 true EP2115276B1 (en) 2015-07-15

Family

ID=37930074

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08709311.8A Active EP2115276B1 (en) 2007-03-08 2008-02-06 Improved two-stroke engine

Country Status (6)

Country Link
EP (1) EP2115276B1 (fi)
KR (1) KR101302254B1 (fi)
CN (1) CN101636560B (fi)
DK (1) DK2115276T3 (fi)
FI (1) FI120212B (fi)
WO (1) WO2008107515A1 (fi)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2917121A1 (fr) * 2007-06-06 2008-12-12 Michel Alain Leon Marchisseau Dispositif et procede de lubrification,de refroidissement et d'amelioration du rendement des moteurs a pistons alternatifs
JP2012202403A (ja) * 2011-03-23 2012-10-22 Waertsilae Schweiz Ag 長手方向掃気式往復動ピストン内燃機関のためのシリンダ構造及びピストン
TWM432153U (en) 2011-11-11 2012-06-21 Cipherlab Co Ltd Dual polarized antenna
CN103016136A (zh) * 2012-12-14 2013-04-03 西华大学 一种高增压二冲程缸内直喷发动机及其换气方法
GB2535692B (en) * 2015-01-15 2017-07-12 Libertine Fpe Ltd A piston expander with transfer valve assembly
EP3219970A1 (de) * 2016-03-17 2017-09-20 Winterthur Gas & Diesel AG Zylinder für einen längsgespülten zweitakt-grossdieselmotor sowie grossdieselmotor
CN107355308B (zh) * 2017-06-02 2019-03-22 中国北方发动机研究所(天津) 一种内置气门的活塞结构
JP6359734B1 (ja) * 2017-07-25 2018-07-18 幸徳 川本 ２ストロークエンジン
CN108180284A (zh) * 2018-02-11 2018-06-19 泓道（上海）科技有限公司 活塞组件及包含其的气缸
CN111237078A (zh) * 2020-01-16 2020-06-05 西华大学 一种二冲程发动机的活塞连杆机构

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6165013A (ja) * 1984-09-06 1986-04-03 Mitsubishi Heavy Ind Ltd ２サイクルデイ−ゼル機関
CN2057957U (zh) * 1989-02-28 1990-06-06 杨炳南 活塞进气式内燃机
EP0475947A4 (en) * 1989-06-07 1992-04-01 Aardvark Pty. Ltd Internal combustion engine
DE3940826A1 (de) * 1989-12-11 1991-06-13 Josef Smidrkal Brennkraftmaschine mit im kolben angebrachten ventilen mit verstellbaren steuerzeiten
JPH094459A (ja) * 1995-06-21 1997-01-07 Isuzu Ceramics Kenkyusho:Kk 副燃焼室を持つ４サイクルエンジン
US5596955A (en) * 1995-10-02 1997-01-28 Szuba; Louis Internal combustion engine
AUPQ092199A0 (en) * 1999-06-14 1999-07-01 Aardvark Pty. Ltd. Internal combustion engine
WO2004044393A1 (en) * 2002-11-08 2004-05-27 Freddie Ray Roberts Improved emissions control internal combustion engine
DE102004013461B4 (de) * 2004-03-18 2007-03-01 Rolka, Gerard, Dipl.-Ing. Verbrennungs-4-Takt-Kolbenmotor mit axialstromigem zyklischem Gaswechsel im Zylinder und zentral liegender geteilter Brennkammer
US7194989B2 (en) * 2005-03-03 2007-03-27 Samuel Raymond Hallenbeck Energy efficient clean burning two-stroke internal combustion engine

Also Published As

Publication number Publication date
EP2115276A1 (en) 2009-11-11
FI120212B (fi) 2009-07-31
FI20075162A (fi) 2008-09-09
DK2115276T3 (en) 2015-10-26
KR20090128459A (ko) 2009-12-15
WO2008107515A1 (en) 2008-09-12
CN101636560A (zh) 2010-01-27
CN101636560B (zh) 2012-02-22
FI20075162A0 (fi) 2007-03-08
KR101302254B1 (ko) 2013-09-02

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