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FR2300896A1 - Two-stroke IC engine - has inclined scavenging channels above piston top edge in lower dead centre position - Google Patents

Two-stroke IC engine - has inclined scavenging channels above piston top edge in lower dead centre position

Info

Publication number
FR2300896A1
FR2300896A1 FR7601095A FR7601095A FR2300896A1 FR 2300896 A1 FR2300896 A1 FR 2300896A1 FR 7601095 A FR7601095 A FR 7601095A FR 7601095 A FR7601095 A FR 7601095A FR 2300896 A1 FR2300896 A1 FR 2300896A1
Authority
FR
France
Prior art keywords
piston
centre position
lower dead
dead centre
stroke
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.)
Withdrawn
Application number
FR7601095A
Other languages
French (fr)
Inventor
Bernd Fischer
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.)
Automobilwerk Eisenach GmbH
Original Assignee
Automobilwerk Eisenach GmbH
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 Automobilwerk Eisenach GmbH filed Critical Automobilwerk Eisenach GmbH
Publication of FR2300896A1 publication Critical patent/FR2300896A1/en
Withdrawn legal-status Critical Current

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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
    • 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
    • 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)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

Aperture controlled two-stroke i/c engine with counter flow scavenging and a combustion chamber arranged in the piston. One or more apertures (10) of scavenging channels (8) issue tangentially and inclined upwards in the cylinder (2) above the upper edge of the piston (5) in the lower dead centre position. One or more outlet channels (15) pass outwards from a recess (12) in the centre of the piston base (5), through the piston outer surface and the cylinder wall - either partly or completely - below the piston upper edge in the lower dead centre position of the piston (5).
FR7601095A 1975-02-17 1976-01-16 Two-stroke IC engine - has inclined scavenging channels above piston top edge in lower dead centre position Withdrawn FR2300896A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD184249A DD118142A1 (en) 1975-02-17 1975-02-17

Publications (1)

Publication Number Publication Date
FR2300896A1 true FR2300896A1 (en) 1976-09-10

Family

ID=5499216

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7601095A Withdrawn FR2300896A1 (en) 1975-02-17 1976-01-16 Two-stroke IC engine - has inclined scavenging channels above piston top edge in lower dead centre position

Country Status (3)

Country Link
DD (1) DD118142A1 (en)
DE (1) DE2552583A1 (en)
FR (1) FR2300896A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520803A1 (en) * 1982-02-03 1983-08-05 Pailler Yves ENGINE WITH TRANSFERS HIGHER TO EXHAUST WITH SECONDARY CHANNELS AND DECOMPRESSION ROOMS ANNEXES
FR2597549A1 (en) * 1986-04-17 1987-10-23 Thaelmann Fahrzeug Jagdwaffen TWO-STROKE ENGINE EXHAUST MANIFOLD

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3144921A1 (en) * 1981-11-12 1983-05-19 Fichtel & Sachs Ag, 8720 Schweinfurt Two-stroke internal combustion engine with one piston duct
DE102010038192A1 (en) * 2010-10-14 2012-04-19 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Two-stroke engine for use in motor car, has intake channels arranged two-point symmetrical to cylinder axis and comprising positioning device that is continuously adjustable at respective flow cross-section

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520803A1 (en) * 1982-02-03 1983-08-05 Pailler Yves ENGINE WITH TRANSFERS HIGHER TO EXHAUST WITH SECONDARY CHANNELS AND DECOMPRESSION ROOMS ANNEXES
FR2597549A1 (en) * 1986-04-17 1987-10-23 Thaelmann Fahrzeug Jagdwaffen TWO-STROKE ENGINE EXHAUST MANIFOLD

Also Published As

Publication number Publication date
DE2552583A1 (en) 1976-08-26
DD118142A1 (en) 1976-02-12

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Legal Events

Date Code Title Description
ST Notification of lapse