EP0971110A4 - Stratified scavenging two-cycle engine - Google Patents

Stratified scavenging two-cycle engine

Info

Publication number: EP0971110A4
Authority: EP; European Patent Office
Prior art keywords: cycle engine; stratified scavenging; stratified; scavenging; engine
Prior art date: 1997-10-03
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP98944286A

Other languages

German (de)

French (fr)

Other versions

EP0971110A1 (en

Inventor

Toshiharu Sawada

Masanori Noguchi

Buhei Kobayashi

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.)

Komatsu Zenoah Co

Japan Petroleum Energy Center JPEC

Original Assignee

Petroleum Energy Center PEC

Komatsu Zenoah Co

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.)

1997-10-03

Filing date

1998-09-29

Publication date

2000-09-06

1998-09-29 Application filed by Petroleum Energy Center PEC, Komatsu Zenoah Co filed Critical Petroleum Energy Center PEC

2000-01-12 Publication of EP0971110A1 publication Critical patent/EP0971110A1/en

2000-09-06 Publication of EP0971110A4 publication Critical patent/EP0971110A4/en

Status Withdrawn legal-status Critical Current

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
- 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
- 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)
Supercharger (AREA)

EP98944286A 1997-10-03 1998-09-29 Stratified scavenging two-cycle engine Withdrawn EP0971110A4 (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
JP28783097		1997-10-03
JP28783097A JPH11107761A (en)	1997-10-03	1997-10-03	Stratified scavenging two-cycle engine
PCT/JP1998/004360 WO1999018338A1 (en)	1997-10-03	1998-09-29	Stratified scavenging two-cycle engine

Publications (2)

Publication Number	Publication Date
EP0971110A1 EP0971110A1 (en)	2000-01-12
EP0971110A4 true EP0971110A4 (en)	2000-09-06

Family

ID=17722323

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP98944286A Withdrawn EP0971110A4 (en)	1997-10-03	1998-09-29	Stratified scavenging two-cycle engine

Country Status (4)

Country	Link
EP (1)	EP0971110A4 (en)
JP (1)	JPH11107761A (en)
AU (1)	AU9186898A (en)
WO (1)	WO1999018338A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE513446C2 (en)	1999-01-19	2000-09-11	Electrolux Ab	Crankcase coil internal combustion engine of two stroke type
US7082910B2 (en)	1999-01-19	2006-08-01	Aktiebolaget Electrolux	Two-stroke internal combustion engine
JP2001098934A (en)	1999-10-04	2001-04-10	Komatsu Zenoah Co	Stratified scavenging two-cycle engine with catalyst
ATE313707T1 (en)	2000-01-14	2006-01-15		TWO-STROKE INTERNATIONAL ENGINE
EP1247009B1 (en)	2000-01-14	2005-12-21	Aktiebolaget Electrolux	Two-stroke internal combustion engine
SE0000095L (en)	2000-01-14	2001-07-15	Electrolux Ab	Damper for regulating auxiliary air for two-stroke internal combustion engines
DE10009621A1 (en) *	2000-03-01	2001-09-06	Stihl Maschf Andreas	Two-stroke engine with charge stratification
JP4515688B2 (en)	2000-04-27	2010-08-04	フスクバルナアクティエボラーグ	2-stroke internal combustion engine
DE10030969B4 (en) *	2000-06-24	2014-07-03	Andreas Stihl Ag & Co	Two-stroke engine with rinsing template
DE10223071A1 (en) *	2002-05-24	2003-12-04	Stihl Maschf Andreas	Slot-controlled two-stroke engine with flushing template
US6708958B1 (en)	2002-10-04	2004-03-23	Electrolux Home Products, Inc.	Air valve mechanism for two-cycle engine
US6848399B2 (en)	2003-05-30	2005-02-01	Electrolux Home Products, Inc.	Scavenging insert for an engine
JP4061252B2 (en)	2003-08-11	2008-03-12	ザマ・ジャパン株式会社	Two-cycle engine carburetor
WO2010035684A1 (en)	2008-09-24	2010-04-01	株式会社マキタ	Stratified scavenging two-stroke engine
JP5922569B2 (en)	2012-12-28	2016-05-24	株式会社マキタ	Stratified scavenging two-stroke engine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4075985A (en) *	1975-06-20	1978-02-28	Yamaha Hatsudoki Kabushiki Kaisha	Two cycle internal combustion engines
JPS57183520A (en) *	1981-05-06	1982-11-11	Isao Oda	Device for preventing mixture from blowing through two-cycle engine
DE4007466A1 (en) *	1990-03-09	1991-02-14	Franz Josef Knott	Reduced emissions two=stroke IC engine - has separately lubricated piston which operates without oil being mixed with fuel
FR2678682A1 (en) *	1991-07-03	1993-01-08	Thery Georges	Reciprocating feed pump, particularly for a two-stroke engine, and engine with which it is associated
DE19520944A1 (en) *	1995-06-05	1996-01-11	Seebeck Norbert Dipl Ing	Air scavenging for two stroke combustion engines
JPH09125966A (en) *	1995-10-27	1997-05-13	Komatsu Zenoah Co	Stratified scavenging 2-cycle engine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5819304Y2 (en) *	1975-06-14	1983-04-20	スズキ株式会社	2 cycle engine
JPS5382615U (en) *	1976-12-11	1978-07-08
JPS554518U (en)	1978-06-23	1980-01-12
JPS585423A (en)	1981-06-30	1983-01-12	Nippon Clean Engine Res	Crank chamber compression 2-cycle internal combustion engine
JPS6153520U (en) *	1984-09-11	1986-04-10
JPS61147330U (en) *	1985-03-06	1986-09-11
JP3024072B2 (en) *	1996-10-17	2000-03-21	財団法人石油産業活性化センター	Stratified scavenging two-cycle engine

1997
- 1997-10-03 JP JP28783097A patent/JPH11107761A/en active Pending
1998
- 1998-09-29 WO PCT/JP1998/004360 patent/WO1999018338A1/en not_active Application Discontinuation
- 1998-09-29 EP EP98944286A patent/EP0971110A4/en not_active Withdrawn
- 1998-09-29 AU AU91868/98A patent/AU9186898A/en not_active Abandoned

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4075985A (en) *	1975-06-20	1978-02-28	Yamaha Hatsudoki Kabushiki Kaisha	Two cycle internal combustion engines
JPS57183520A (en) *	1981-05-06	1982-11-11	Isao Oda	Device for preventing mixture from blowing through two-cycle engine
DE4007466A1 (en) *	1990-03-09	1991-02-14	Franz Josef Knott	Reduced emissions two=stroke IC engine - has separately lubricated piston which operates without oil being mixed with fuel
FR2678682A1 (en) *	1991-07-03	1993-01-08	Thery Georges	Reciprocating feed pump, particularly for a two-stroke engine, and engine with which it is associated
DE19520944A1 (en) *	1995-06-05	1996-01-11	Seebeck Norbert Dipl Ing	Air scavenging for two stroke combustion engines
JPH09125966A (en) *	1995-10-27	1997-05-13	Komatsu Zenoah Co	Stratified scavenging 2-cycle engine

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 007, no. 029 (M - 191) 5 February 1983 (1983-02-05) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 09 30 September 1997 (1997-09-30) *
See also references of WO9918338A1 *

Also Published As

Publication number	Publication date
AU9186898A (en)	1999-04-27
EP0971110A1 (en)	2000-01-12
WO1999018338A1 (en)	1999-04-15
JPH11107761A (en)	1999-04-20

Publication	Publication Date	Title
EP0992660A4 (en)	2002-01-02	Stratified scavenging two-cycle engine
EP1006267A4 (en)	2001-10-31	Stratified scavenging two-cycle engine
AU4572497A (en)	1998-05-15	Stratified scavenging two-cycle engine
EP0933514A4 (en)	2001-10-17	Stratified scavenging two-cycle engine
GB9511787D0 (en)	1995-08-02	Crankcase scavenged two-stroke engines
AU3453500A (en)	2000-11-10	Stratified scavenging two-stroke cycle engine
GB2279700B (en)	1996-04-24	Two-stroke internal-combustion engine
NO971709D0 (en)	1997-04-14	two-stroke engine
GB9508790D0 (en)	1995-06-21	Stratified charge engine
EP0971110A4 (en)	2000-09-06	Stratified scavenging two-cycle engine
AU7454000A (en)	2001-05-10	Stratified scavenging two-cycle engine with catalyst
GB9824916D0 (en)	1999-01-06	Stratified charge engine
DE69606884D1 (en)	2000-04-06	STRATIFIED CHARGING ENGINE
GB9520427D0 (en)	1995-12-06	Stratified charge engine
GB9419944D0 (en)	1994-11-16	Stratified charge engine
GB9505894D0 (en)	1995-05-10	Stratified charge engine
GB2302912B (en)	1997-06-18	Two-stroke internal-combustion engine with co-current scavenging
GB2288637B (en)	1996-09-18	Improvements in two-stroke engines
GB9524365D0 (en)	1996-01-31	Stratified charge engine
AU5829398A (en)	1998-09-10	Carburetor for two-cycle engine
GB9709543D0 (en)	1997-07-02	Two-stroke engines
GB9604535D0 (en)	1996-05-01	Two-stroke engines
PL316556A1 (en)	1998-04-27	Two-stroke engine
HU9600347V0 (en)	1997-01-28	Two-cycle engine
GB9809523D0 (en)	1998-07-01	Two-stroke engines

Legal Events

Date	Code	Title	Description
1999-11-26	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2000-01-12	17P	Request for examination filed	Effective date: 19990120
2000-01-12	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): DE FR GB IT SE
2000-09-06	A4	Supplementary search report drawn up and despatched	Effective date: 20000721
2000-09-06	AK	Designated contracting states	Kind code of ref document: A4 Designated state(s): DE FR GB IT SE
2001-01-10	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: PETROLEUM ENERGY CENTER Owner name: KOMATSU ZENOAH CO.
2001-03-07	17Q	First examination report despatched	Effective date: 20010118
2002-04-26	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
2002-06-12	18D	Application deemed to be withdrawn	Effective date: 20011204