WO2013017232A3 - Formgebung der kolbenmulde einer rotationskolbenmaschine - Google Patents

Formgebung der kolbenmulde einer rotationskolbenmaschine Download PDF

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Publication number
WO2013017232A3
WO2013017232A3 PCT/EP2012/003184 EP2012003184W WO2013017232A3 WO 2013017232 A3 WO2013017232 A3 WO 2013017232A3 EP 2012003184 W EP2012003184 W EP 2012003184W WO 2013017232 A3 WO2013017232 A3 WO 2013017232A3
Authority
WO
WIPO (PCT)
Prior art keywords
piston
recess
fuel
rotary
engine
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.)
Ceased
Application number
PCT/EP2012/003184
Other languages
English (en)
French (fr)
Other versions
WO2013017232A2 (de
Inventor
Alexander MACHOLD
Andreas Ennemoser
Josef Ruetz
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.)
AVL List GmbH
Original Assignee
AVL List 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 AVL List GmbH filed Critical AVL List GmbH
Publication of WO2013017232A2 publication Critical patent/WO2013017232A2/de
Publication of WO2013017232A3 publication Critical patent/WO2013017232A3/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/22—Rotary-piston machines or engines of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth- equivalents than the outer member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • 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
    • F02B55/00—Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons
    • F02B55/02—Pistons
    • 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
    • F02B55/00—Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons
    • F02B55/14—Shapes or constructions of combustion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2250/00—Geometry
    • F04C2250/20—Geometry of the rotor
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

In einer Rotationskolbenmaschine (1) weisen die Kolbenflankenwände (11) Kolbenmuden (12) mit im Wesentlichen rechteckiger Grundform auf, deren Längskanten (20, 21) derart nach innen gekrümmt sind, dass der Umriss der Kolbenmulde (12) an einer zwischen den beiden Längskanten (20, 21) verlaufenden Einschnürungsstelle (24) bezüglich seiner Ausdehnung senkrecht zur Rotationsrichtung schmäler als an der Vorderkante (22) und an der Hinterkante (23) ist. Erfindungsgemäß beträgt die Breite des Umrisses der Kolbenmulde (12) an der Einschnürungsstelle (24) wenigstens die Hälfte der Länge der Vorderkante (22) oder der Länge der Hinterkante (23). Durch diese Muldenform kann ein besonders hohes Turbulenzniveau des Kraftstoff-Luft-Gemischs in der Kolbenmulde (12) und damit in der Brennkammer erreicht werden. Dies führt zu einer schnelleren, günstigeren Flammenausbreitung und somit zu einer besseren Verbrennung des Kraftstoff-LuftGemischs. Dadurch kann der thermische Wirkungsgrad der Rotationskolbenmaschine (1) erhöht und Kraftstoff gespart werden.
PCT/EP2012/003184 2011-08-04 2012-07-26 Formgebung der kolbenmulde einer rotationskolbenmaschine Ceased WO2013017232A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1127/2011 2011-08-04
ATA1127/2011A AT512369B1 (de) 2011-08-04 2011-08-04 Rotationskolbenmaschine

Publications (2)

Publication Number Publication Date
WO2013017232A2 WO2013017232A2 (de) 2013-02-07
WO2013017232A3 true WO2013017232A3 (de) 2013-10-10

Family

ID=46603878

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/003184 Ceased WO2013017232A2 (de) 2011-08-04 2012-07-26 Formgebung der kolbenmulde einer rotationskolbenmaschine

Country Status (2)

Country Link
AT (1) AT512369B1 (de)
WO (1) WO2013017232A2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10526961B2 (en) 2017-02-09 2020-01-07 Pratt & Whitney Canada Corp. Rotary internal combustion engine with unequal volumetric ratios
JP7159662B2 (ja) 2018-07-17 2022-10-25 マツダ株式会社 ロータリピストンエンジン

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB982358A (en) * 1962-08-25 1965-02-03 Beteiligungs & Patentverw Gmbh Rotary piston diesel engines
US3359955A (en) * 1966-04-18 1967-12-26 Curtiss Wright Corp Rotary engine combustion chamber
DE1401994A1 (de) * 1962-07-25 1968-11-21 Daimler Benz Ag Rotationskolben-Brennkraftmaschine in Trochoidenbauart
JPS4927709A (de) * 1972-07-10 1974-03-12
JPS49123406U (de) * 1973-02-23 1974-10-23
US3976035A (en) * 1974-09-26 1976-08-24 Texaco Inc. Rotary engine and method of operation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1451857A1 (de) 1965-12-15 1969-08-21 Ustav Pro Vyzkum Motorovych Vo Kreis- oder Drehkolben-Brennkraftmaschine
JPS49117812A (de) * 1973-03-15 1974-11-11
DE2502931A1 (de) 1974-01-25 1975-07-31 Siak Hoo Ong Rotationskolbenmaschine
JPS50135412A (de) * 1974-04-16 1975-10-27
JPS59141727A (ja) 1983-02-03 1984-08-14 Fujio Inoue ロ−タリ−エンジン

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1401994A1 (de) * 1962-07-25 1968-11-21 Daimler Benz Ag Rotationskolben-Brennkraftmaschine in Trochoidenbauart
GB982358A (en) * 1962-08-25 1965-02-03 Beteiligungs & Patentverw Gmbh Rotary piston diesel engines
US3359955A (en) * 1966-04-18 1967-12-26 Curtiss Wright Corp Rotary engine combustion chamber
JPS4927709A (de) * 1972-07-10 1974-03-12
JPS49123406U (de) * 1973-02-23 1974-10-23
US3976035A (en) * 1974-09-26 1976-08-24 Texaco Inc. Rotary engine and method of operation

Also Published As

Publication number Publication date
WO2013017232A2 (de) 2013-02-07
AT512369A1 (de) 2013-07-15
AT512369B1 (de) 2013-10-15

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