WO2015170020A3 - Two-stroke thermal engine of a motor vehicle, comprising twisted inlet ports - Google Patents

Two-stroke thermal engine of a motor vehicle, comprising twisted inlet ports Download PDF

Info

Publication number
WO2015170020A3
WO2015170020A3 PCT/FR2015/050768 FR2015050768W WO2015170020A3 WO 2015170020 A3 WO2015170020 A3 WO 2015170020A3 FR 2015050768 W FR2015050768 W FR 2015050768W WO 2015170020 A3 WO2015170020 A3 WO 2015170020A3
Authority
WO
WIPO (PCT)
Prior art keywords
thermal engine
motor vehicle
inlet ports
angles
edges
Prior art date
Application number
PCT/FR2015/050768
Other languages
French (fr)
Other versions
WO2015170020A2 (en
Inventor
Laurent Delahaye
Frédéric JUSTET
Pascal Tribotte
Original Assignee
Renault S.A.S
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 Renault S.A.S filed Critical Renault S.A.S
Priority to EP15788646.6A priority Critical patent/EP3140528A2/en
Publication of WO2015170020A2 publication Critical patent/WO2015170020A2/en
Publication of WO2015170020A3 publication Critical patent/WO2015170020A3/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
    • 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
    • F02B25/04—Engines having ports both in cylinder head and in cylinder wall 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
    • F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
    • F02B31/04—Modifying induction systems for imparting a rotation to the charge in the cylinder by means within the induction channel, e.g. deflectors
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/18—Other cylinders
    • F02F1/22—Other cylinders characterised by having ports in cylinder wall for scavenging or charging
    • 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

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)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

The invention relates to a two-stroke thermal engine comprising at least one axial cylinder (12) having a bore (14) which slidably receives at least one piston (16) and has a plurality of lower peripheral ports (34) capable of being opened or closed by the moving piston (16), which ports are substantially hexahedral in shape, are each defined in the peripheral wall (30) by quadrilateral surfaces (36, 38, 58, 60), comprising upper surfaces (36, 38) which are defined by edges (40, 42, 46, 48), referred to as gas directing edges, characterised in that the gas directing edges (40, 42) of the upper surface (36) form angles (α4ο, α42) with a radial direction (R), which angles are oriented in a first direction and are within a first angular range, and in that the gas directing edges (46, 48) of the lower surface form angles (α46, α4β) with the radial direction (R), which angles are oriented in a second direction, which is opposite the first, and are within a second angular range.
PCT/FR2015/050768 2014-05-05 2015-03-26 Two-stroke thermal engine of a motor vehicle, comprising twisted inlet ports WO2015170020A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15788646.6A EP3140528A2 (en) 2014-05-05 2015-03-26 Two-stroke combustion engine of an automotive vehicle with twisted intake ports

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1454038 2014-05-05
FR1454038A FR3020656B1 (en) 2014-05-05 2014-05-05 "TWO STROKE THERMAL ENGINE OF AUTOMOTIVE VEHICLE WITH TWISTED INTAKE LIGHTS"

Publications (2)

Publication Number Publication Date
WO2015170020A2 WO2015170020A2 (en) 2015-11-12
WO2015170020A3 true WO2015170020A3 (en) 2016-04-28

Family

ID=50933428

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2015/050768 WO2015170020A2 (en) 2014-05-05 2015-03-26 Two-stroke thermal engine of a motor vehicle, comprising twisted inlet ports

Country Status (3)

Country Link
EP (1) EP3140528A2 (en)
FR (2) FR3020656B1 (en)
WO (1) WO2015170020A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB751743A (en) * 1952-10-27 1956-07-04 Texaco Development Corp Improvements in or relating to an air intake for an internal combustion engine
GB778589A (en) * 1956-01-16 1957-07-10 Texaco Development Corp A two-stroke cycle uniflow-scavenged internal combustion engine having air induction port means
DE1035964B (en) * 1956-02-20 1958-08-07 Habil Eugen Wilhelm Huber Dr I Two-stroke internal combustion engine with direct current flushing
EP0108706A2 (en) * 1982-11-04 1984-05-16 Mitsubishi Jukogyo Kabushiki Kaisha Cylinder liner for a uniflow type two cycle internal combustion engine
US20120266851A1 (en) * 2011-04-25 2012-10-25 Ecomotors International, Inc. Intake System for a Two-Stroke Internal Combustion Engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB751743A (en) * 1952-10-27 1956-07-04 Texaco Development Corp Improvements in or relating to an air intake for an internal combustion engine
GB778589A (en) * 1956-01-16 1957-07-10 Texaco Development Corp A two-stroke cycle uniflow-scavenged internal combustion engine having air induction port means
DE1035964B (en) * 1956-02-20 1958-08-07 Habil Eugen Wilhelm Huber Dr I Two-stroke internal combustion engine with direct current flushing
EP0108706A2 (en) * 1982-11-04 1984-05-16 Mitsubishi Jukogyo Kabushiki Kaisha Cylinder liner for a uniflow type two cycle internal combustion engine
US20120266851A1 (en) * 2011-04-25 2012-10-25 Ecomotors International, Inc. Intake System for a Two-Stroke Internal Combustion Engine

Also Published As

Publication number Publication date
FR3020656B1 (en) 2020-08-14
FR3020656A1 (en) 2015-11-06
EP3140528A2 (en) 2017-03-15
FR3020657A1 (en) 2015-11-06
WO2015170020A2 (en) 2015-11-12

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