EP0114184A3 - Valve control for internal-combustion engines with outwardly opening piston valves to achieve an optimum combustion space - Google Patents

Valve control for internal-combustion engines with outwardly opening piston valves to achieve an optimum combustion space Download PDF

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Publication number
EP0114184A3
EP0114184A3 EP83108279A EP83108279A EP0114184A3 EP 0114184 A3 EP0114184 A3 EP 0114184A3 EP 83108279 A EP83108279 A EP 83108279A EP 83108279 A EP83108279 A EP 83108279A EP 0114184 A3 EP0114184 A3 EP 0114184A3
Authority
EP
European Patent Office
Prior art keywords
valves
combustion chamber
piston
opening
combustion
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Withdrawn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
EP83108279A
Other languages
German (de)
French (fr)
Other versions
EP0114184A2 (en
Inventor
Johannes Reitz
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.)
IRM ANTRIEBSTECHNIK GmbH
Original Assignee
IRM ANTRIEBSTECHNIK 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 IRM ANTRIEBSTECHNIK GmbH filed Critical IRM ANTRIEBSTECHNIK GmbH
Publication of EP0114184A2 publication Critical patent/EP0114184A2/en
Publication of EP0114184A3 publication Critical patent/EP0114184A3/en
Withdrawn legal-status Critical Current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
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L5/00—Slide valve-gear or valve-arrangements
    • F01L5/04—Slide valve-gear or valve-arrangements with cylindrical, sleeve, or part-annularly shaped valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/30—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of positively opened and closed valves, i.e. desmodromic valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/20—Shapes or constructions of valve members, not provided for in preceding subgroups of this group
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

Neuere Untersuchungen haben die Grenzen der Brenn­ raumgestaltung als sehr wesentlich abhängig von der Lage, der Form und der Temperatur sowie der Überschneidung bezeichnet; respektive der benötigten Räume für die Ventile. Recent research has the limitations of burning interior design as very essential depending on the location the shape and the temperature as well as the overlap designated; or the required spaces for the valves.

Da die weitere Erhöhung der Verdichtung insbesondere beim Otto-Motor bei gegebenen Oktanwerten des Kraftstoffs angestrebt wird, liegt der Erfindung mit der Bezeichnung "Gaswechselsteuerung für Brennkraftmaschinen mit nach außen öffnenden Kolbenventilen zur Erlangung eines opti­ malen Brennraumes" der Gedanke zugrunde, die üblicher­ weise nach innen in den Brennraum öffnenden Ventile nach außen öffnend umzugestalten. Vorher wurden auch Überle­ gungen über bekannte Schiebersteuerungen gemacht. Krite­ rium war die freie Gestaltungsmöglichkeit für einen weitge­ hendst idealen Brennraum. Because the further increase in compaction in particular in the Otto engine with given octane values of the fuel is aimed, the invention lies with the designation "Gas exchange control for internal combustion engines with after outside opening piston valves to achieve an opti paint the combustion chamber "based on the thought, the more common Detect valves opening inwards into the combustion chamber remodeling opening outside. Before that, Überle made over known slide controls. Criteria rium was the free design option for a wide ideal combustion chamber.

Das Problem der Schließkraft bei nach außen öffnenden Ventilen im Arbeitshub ist erfindungsgemäß durch ein Kniehebelsystem gelöst worden. Die Ventile sind kolbenför­ mig gestaltet um den Strömungswiderstand herabzusetzen. Die Kolbenform unterstützt den Gaswechselprozeß. Die Temperatur vornehmlich des Auslaßventils dürfte erheblich niedriger sein. Die Brennraumgestaltung wird homogen, d.h. ohne Zerklüftung. Der Brennraum kann als Brennmulde im Kolben unterhalb der Zündkerze angeordnet sein. Die Quetschflächen und Spalten können optimal gleichmäßig ausgelegt werden. Man könnte sich vorstellen, die Kolbeno­ berfläche mit drallförmigen Kanälen zu versehen, so daß der Drall erst beim Verdichten in Richtung Mulde entsteht, was dem volumetrischen Liefergrad nicht so abträglich wäre wie die Drallerzeugung im Kanal. Schließlich wird auf die sich durch die außensteuernden Kolbenventile ergebende einfa­ che und billige Motorbauweise hingewiesen. The problem of the closing force with outward opening Valves in the working stroke is according to the invention by a Knee lever system has been released. The valves are piston-shaped mig designed to reduce the flow resistance. The piston shape supports the gas exchange process. The Temperature primarily of the exhaust valve should be considerable be lower. The combustion chamber design becomes homogeneous, i.e. without fissures. The combustion chamber can be used as a combustion bowl in the Pistons may be arranged below the spark plug. The Squeezing areas and gaps can be optimally even be interpreted. You could imagine the Kolbeno To provide surface with swirl-shaped channels, so that the Whirl is only created when compacting in the direction of the trough the volumetric delivery rate would not be as detrimental as the swirl generation in the channel. Eventually, the will resulting by the externally controlling piston valves che and cheap engine design noted.

EP83108279A 1983-01-14 1983-08-23 Valve control for internal-combustion engines with outwardly opening piston valves to achieve an optimum combustion space Withdrawn EP0114184A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3301007 1983-01-14
DE19833301007 DE3301007A1 (en) 1983-01-14 1983-01-14 GAS EXCHANGE CONTROL FOR INTERNAL COMBUSTION ENGINES WITH OUTSIDE PISTON VALVES TO OBTAIN AN OPTIMAL COMBUSTION CHAMBER

Publications (2)

Publication Number Publication Date
EP0114184A2 EP0114184A2 (en) 1984-08-01
EP0114184A3 true EP0114184A3 (en) 1984-11-07

Family

ID=6188243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83108279A Withdrawn EP0114184A3 (en) 1983-01-14 1983-08-23 Valve control for internal-combustion engines with outwardly opening piston valves to achieve an optimum combustion space

Country Status (2)

Country Link
EP (1) EP0114184A3 (en)
DE (1) DE3301007A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60209614A (en) * 1984-04-03 1985-10-22 Honda Motor Co Ltd Valve apparatus for four-cycle engine
DE4210764A1 (en) * 1992-04-01 1993-10-07 Daimler Benz Ag IC engine with piston slide valve - has gas exchange channel on intake valve with piston slide-controlled valve opening
DE19537028A1 (en) * 1995-10-05 1997-04-10 Iav Gmbh Roll-shaped combustion cavity for diesel engine
IL134569A0 (en) * 2000-02-16 2001-04-30 S L V Valve Technologies Ltd Springless-valve engine mechanism
ITBI20110007A1 (en) * 2011-06-09 2011-09-08 Gianni Olivari "SUCTION AND EXPULSION DEVICE REPLACING THE VALVES"
DE102011078556B3 (en) * 2011-07-01 2012-11-08 Norbert Kuhl VALVE CONTROL DEVICE FOR A PISTON STEAMING MACHINE

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB314550A (en) * 1928-06-29 1930-10-29 Louis Broadwell Thoms Improvements in or relating to internal combustion engines
FR41200E (en) * 1931-12-30 1932-12-01 Internal combustion engine
DE898380C (en) * 1951-07-14 1953-11-30 Demag Ag Valve controlled by the operating medium for piston engines for pressurized gas or vaporous operating materials
BE706260A (en) * 1967-11-09 1968-03-18
FR2313555A1 (en) * 1975-06-04 1976-12-31 Laurent Narcisse Exhaust valve for four stroke engine - has piston so that pressure load on valve is balanced and reduces load on operating cam
DE3123527A1 (en) * 1980-11-27 1982-06-24 Volkswagenwerk Ag, 3180 Wolfsburg "PISTON PISTON ENGINE WITH OIL SPACES FOR COOLING"
FR2518166A1 (en) * 1981-12-16 1983-06-17 Daimler Benz Ag DEVICE FOR GUIDING THE ROD OF A VALVE IN AN INTERNAL COMBUSTION ENGINE

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB314550A (en) * 1928-06-29 1930-10-29 Louis Broadwell Thoms Improvements in or relating to internal combustion engines
FR41200E (en) * 1931-12-30 1932-12-01 Internal combustion engine
DE898380C (en) * 1951-07-14 1953-11-30 Demag Ag Valve controlled by the operating medium for piston engines for pressurized gas or vaporous operating materials
BE706260A (en) * 1967-11-09 1968-03-18
FR2313555A1 (en) * 1975-06-04 1976-12-31 Laurent Narcisse Exhaust valve for four stroke engine - has piston so that pressure load on valve is balanced and reduces load on operating cam
DE3123527A1 (en) * 1980-11-27 1982-06-24 Volkswagenwerk Ag, 3180 Wolfsburg "PISTON PISTON ENGINE WITH OIL SPACES FOR COOLING"
FR2518166A1 (en) * 1981-12-16 1983-06-17 Daimler Benz Ag DEVICE FOR GUIDING THE ROD OF A VALVE IN AN INTERNAL COMBUSTION ENGINE

Also Published As

Publication number Publication date
EP0114184A2 (en) 1984-08-01
DE3301007A1 (en) 1984-07-26

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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18D Application deemed to be withdrawn

Effective date: 19850709

RIN1 Information on inventor provided before grant (corrected)

Inventor name: REITZ, JOHANNES