WO2006080044A3 - Gas jet fluid barrier for two cycle engines - Google Patents

Gas jet fluid barrier for two cycle engines Download PDF

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Publication number
WO2006080044A3
WO2006080044A3 PCT/IT2006/000050 IT2006000050W WO2006080044A3 WO 2006080044 A3 WO2006080044 A3 WO 2006080044A3 IT 2006000050 W IT2006000050 W IT 2006000050W WO 2006080044 A3 WO2006080044 A3 WO 2006080044A3
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust
fluid barrier
gas jet
cycle engines
jet fluid
Prior art date
Application number
PCT/IT2006/000050
Other languages
French (fr)
Other versions
WO2006080044A2 (en
Inventor
Renzo Dellarosa
Original Assignee
Ct Ricerche Tecnologiche Srl
Renzo Dellarosa
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 Ct Ricerche Tecnologiche Srl, Renzo Dellarosa filed Critical Ct Ricerche Tecnologiche Srl
Priority to EP06711404A priority Critical patent/EP1848881A2/en
Publication of WO2006080044A2 publication Critical patent/WO2006080044A2/en
Publication of WO2006080044A3 publication Critical patent/WO2006080044A3/en

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
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/04—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues in exhaust systems only, e.g. for sucking-off combustion gases
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

A system capable of avoiding or limiting the leakage of the fresh gases of a two-cycle internal-combustion engine during the exhaust/transfer stroke consists of a (pressurized) fluid barrier provided by various devices and positioned downstream of the exhaust port in the cylinder exhaust channel. In the embodiment disclosed the fluid barrier is formed by a gas jet from a pneumatic circuit provided with pressure accumulator that takes exhaust gases from the exhaust pipe of the engine and lets them crosswise in the exhaust channel of the engine' s cylinder downstream of the exhaust port through a nozzle .
PCT/IT2006/000050 2005-01-27 2006-01-27 Gas jet fluid barrier for two cycle engines WO2006080044A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06711404A EP1848881A2 (en) 2005-01-27 2006-01-27 Gas jet fluid barrier for two cycle engines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000003A ITRN20050003A1 (en) 2005-01-27 2005-01-27 FLUID GAS BARRIER FOR TWO-STROKE ENGINES
ITRN2005A000003 2005-01-27

Publications (2)

Publication Number Publication Date
WO2006080044A2 WO2006080044A2 (en) 2006-08-03
WO2006080044A3 true WO2006080044A3 (en) 2006-09-08

Family

ID=36218097

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2006/000050 WO2006080044A2 (en) 2005-01-27 2006-01-27 Gas jet fluid barrier for two cycle engines

Country Status (3)

Country Link
EP (1) EP1848881A2 (en)
IT (1) ITRN20050003A1 (en)
WO (1) WO2006080044A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112012001120A5 (en) 2011-03-09 2014-01-02 Makita Corporation Two-stroke engine with a silencer
JP6098292B2 (en) * 2013-03-28 2017-03-22 日立工機株式会社 Engine and portable work machine
CN108730023B (en) * 2018-04-19 2023-02-21 上海尤顺汽车技术有限公司 Method and device for controlling exhaust gas flow of engine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1345707A (en) * 1970-05-21 1974-02-06 Glen J R Two-stroke internal combustion engines
JPS56156414A (en) * 1980-05-02 1981-12-03 Honda Motor Co Ltd Two cycle internal combustion engine
JPS58122313A (en) * 1982-01-16 1983-07-21 Matsushige Matsuo Vacuum-scavenged two-cycle engine
US4848279A (en) * 1988-02-03 1989-07-18 Industrial Technology Research Institute Air-injection device for two-stroke engines
EP0554875A1 (en) * 1992-02-07 1993-08-11 Fichtel & Sachs AG Exhaust system for two-cycle internal combustion engines
US20020152747A1 (en) * 1999-09-22 2002-10-24 Aktiebolaget Electrolux Two-stroke internal combustion engine
EP1314870A1 (en) * 2001-11-21 2003-05-28 MORINI FRANCO MOTORI S.p.A. Enhanced two-stroke endothermic engine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1345707A (en) * 1970-05-21 1974-02-06 Glen J R Two-stroke internal combustion engines
JPS56156414A (en) * 1980-05-02 1981-12-03 Honda Motor Co Ltd Two cycle internal combustion engine
JPS58122313A (en) * 1982-01-16 1983-07-21 Matsushige Matsuo Vacuum-scavenged two-cycle engine
US4848279A (en) * 1988-02-03 1989-07-18 Industrial Technology Research Institute Air-injection device for two-stroke engines
EP0554875A1 (en) * 1992-02-07 1993-08-11 Fichtel & Sachs AG Exhaust system for two-cycle internal combustion engines
US20020152747A1 (en) * 1999-09-22 2002-10-24 Aktiebolaget Electrolux Two-stroke internal combustion engine
EP1314870A1 (en) * 2001-11-21 2003-05-28 MORINI FRANCO MOTORI S.p.A. Enhanced two-stroke endothermic engine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 006, no. 043 (M - 117) 17 March 1982 (1982-03-17) *
PATENT ABSTRACTS OF JAPAN vol. 007, no. 230 (M - 249) 12 October 1983 (1983-10-12) *

Also Published As

Publication number Publication date
WO2006080044A2 (en) 2006-08-03
ITRN20050003A1 (en) 2006-07-28
EP1848881A2 (en) 2007-10-31

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