EP1132579A1 - Cylinder head with rotary valve - Google Patents

Cylinder head with rotary valve Download PDF

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Publication number
EP1132579A1
EP1132579A1 EP01103032A EP01103032A EP1132579A1 EP 1132579 A1 EP1132579 A1 EP 1132579A1 EP 01103032 A EP01103032 A EP 01103032A EP 01103032 A EP01103032 A EP 01103032A EP 1132579 A1 EP1132579 A1 EP 1132579A1
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EP
European Patent Office
Prior art keywords
rotary valve
cylinder head
roller
head unit
valve
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.)
Granted
Application number
EP01103032A
Other languages
German (de)
French (fr)
Other versions
EP1132579B1 (en
Inventor
Ulrich Dr. Bischofberger
Reiner Ulrich
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.)
Mahle GmbH
Original Assignee
Mahle GmbH
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Filing date
Publication date
Application filed by Mahle GmbH filed Critical Mahle GmbH
Publication of EP1132579A1 publication Critical patent/EP1132579A1/en
Application granted granted Critical
Publication of EP1132579B1 publication Critical patent/EP1132579B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/16—Sealing or packing arrangements specially therefor
    • 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
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Lift Valve (AREA)

Abstract

The cylinder head(1) has a rotary valve(3) made of austenitic cast iron. The bore(2) housing the rotary valve is at least partially coated in the region of the running surface for the rotary valve. The coating is one of nickel with dispersed hard particles or is a hard chrome lining. The cylinder head has at least one carbon sealing ring(8) in abraidable contact with the rotary valve. The sealing ring seals the gap between the rotary valve and valve housing in the region of the gas flow passages.

Description

Die Erfindung betrifft eine Zylinderkopfeinheit mit mindestens einem drehbar in einer Bohrung angeordneten Walzendrehschieber zur Steuerung des Gaswechsels einer Brennkraftkolbenmaschine. Walzendrehschieber stellen eine Alternative zu konventionellen, mit Hubventilen arbeitenden Ventilsteuerungen für Brennkraft-Kolbenmaschinen dar.The invention relates to a cylinder head unit with at least a rotatable rotary valve arranged in a bore to control the gas exchange of an internal combustion engine. Roller rotary valves are an alternative to conventional valve controls working with globe valves for internal combustion piston engines.

Entsprechende Zylinderkopfeinheiten mit Walzendrehschiebern sind z. B. aus der WO 9424240 oder aus der FR 2553469 bekannt. Als mögliche Werkstoffe für einen entsprechenden Walzendrehschieber werden in der FR 2553469 Verbundwerkstoffe auf Kohlenstoff- oder keramischer Basis, gehärtete Stähle und Bronze angegeben.Corresponding cylinder head units with rotary slide valves are z. B. from WO 9424240 or from FR 2553469 known. As possible materials for a corresponding Roller vane valves are used in FR 2553469 composite materials based on carbon or ceramic, hardened Steels and bronze specified.

Die Erfindung beschäftigt sich mit dem Problem, einen weiteren geeigneten Werkstoff für Walzendrehschieber anzugeben.The invention addresses another problem specify a suitable material for the rotary rotary valve.

Dieses Problem wird gelöst durch einen Walzendrehschieber nach Anspruch 1. Vorteilhafte Weiterbildungen sind Gegenstand der Unteransprüche.This problem is solved by a roller valve according to claim 1. Advantageous further developments are the subject of subclaims.

Austenitisches Gußeisen ist unter dem Handelsnamen NiResist bekannt geworden.Austenitic cast iron is under the trade name NiResist known.

Der erfindungsgemäße Walzendrehschieber aus austenitischem Gußeisen hat gute Laufeigenschaften insbesondere bei Mangelschmierung. Besonders vorteilhafte Laufeigenschaften ergeben sich in Kombination mit Hartchrom oder Nickeldispersionsschichten. The roller rotary valve according to the invention made of austenitic Cast iron has good running properties, especially with insufficient lubrication. Result in particularly advantageous running properties in combination with hard chrome or nickel dispersion layers.

Die Zusammensetzung des austenitischen Gußeisens liegt bevorzugt bei max. 3% C, 1-5,5 % Si, max. 7 % Mn, 12-22 % Ni, 1-5,5 % Cr, 5-8 % Cu. Die Grafitausbildung ist lamellar oder kugelig.The composition of the austenitic cast iron is preferred at max. 3% C, 1-5.5% Si, max. 7% Mn, 12-22% Ni, 1-5.5% Cr, 5-8% Cu. The graphite formation is lamellar or spherical.

Die Erfindung wird im folgenden anhand eines Ausführungsbeispiels näher erläutert. Es zeigt:
Fig. 1 eine erfindungsgemäße Zylinderkopfeinheit mit Walzendrehschieber.The invention is explained in more detail below using an exemplary embodiment. It shows:
Fig. 1 shows a cylinder head unit according to the invention with a rotary slide valve.

In einem Zylinderkopf 1 aus einer Aluminiumlegierung ist in einer Bohrung 2 ein Walzendrehschieber 3 angeordnet, der den Gaswechsel steuert und der aus NiResist besteht. Die gasführenden Kanäle in dem Walzendrehschieber 3 sind in der Zeichnung nicht dargestellt.In a cylinder head 1 made of an aluminum alloy is in a bore 2, a rotary valve 3 arranged, the controls the gas exchange and consists of NiResist. The gas-carrying channels in the rotary valve 3 are in the Drawing not shown.

Der Walzendrehschieber 3 wird von einem Riemenrad 4 angetrieben. Die Bohrung 2 ist einseitig mit einem eingepreßten Aluminiumdeckel 5 verschlossen. Zwischen dem Walzendrehschieber 3 und dem Deckel 5 ist eine Anlaufscheibe 6 aus Kunststoff zur Schwingungsdämpfung angeordnet.The roller rotary valve 3 is driven by a belt wheel 4. The bore 2 is pressed in on one side Aluminum lid 5 closed. Between the roller valve 3 and the cover 5 is a thrust washer 6 Plastic arranged for vibration damping.

Zur Abdichtung der gasführenden Kanäle sind am Walzenumfang in zwei Nuten 7 je zwei Kolbenringe mit versetztem Stoß angeordnet. Der Übergang zwischen Walze und Brennraum ist durch einen unter Federvorspannung gleitend an der Walze 3 anliegenden Dichtring 8 aus Kohlenstoff abgedichtet.To seal the gas-carrying channels are on the roller circumference Arranged in two grooves 7, two piston rings each with an offset joint. The transition between roller and combustion chamber is by a spring-loaded sliding on the roller 3 sealing ring 8 sealed from carbon.

Die Bohrung 2 ist im Bereich ihrer Lauffläche mit einer Hartchromschicht 9 versehen.The bore 2 is in the area of its tread Hard chrome layer 9 provided.

Claims (4)

Zylinderkopfeinheit (1) mit mindestens einem drehbar in einer Bohrung (2) angeordneten Walzendrehschieber (3) zur Steuerung des Gaswechsels einer Brennkraftkolbenmaschine,
dadurch gekennzeichnet, daß der Walzendrehschieber (3) aus austenitischem Gußeisen besteht.Cylinder head unit (1) with at least one roller rotary valve (3) rotatably arranged in a bore (2) for controlling the gas exchange of an internal combustion engine,
characterized in that the roller rotary valve (3) consists of austenitic cast iron. Zylinderkopfeinheit nach Anspruch 1,
dadurch gekennzeichnet, daß die Bohrung (2) im Bereich der Lauffläche für den Walzendrehschieber (3) zumindest teilweise beschichtet ist.Cylinder head unit according to claim 1,
characterized in that the bore (2) is at least partially coated in the area of the running surface for the rotary roller valve (3). Zylinderkopfeinheit nach Anspruch 2,
dadurch gekennzeichnet, daß die Schicht (9) eine Nickelschicht mit dispergierten Hartpartikeln oder eine Hartchromschicht ist.Cylinder head unit according to claim 2,
characterized in that the layer (9) is a nickel layer with dispersed hard particles or a hard chrome layer. Zylinderkopfeinheit nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß in der Zylinderkopfeinheit (1) mindestens ein den Walzendrehschieber (3) schleifend kontaktierender Dichtring (8) aus Kohlenstoff angeordnet ist, der im Bereich der durchströmten Öffnungen den Spalt zwischen Walzendrehschieber (3) und Drehschiebergehäuse abdichtet.Cylinder head unit according to one of the preceding claims,
characterized in that in the cylinder head unit (1) at least one sealing ring (8) contacting the roller rotary valve (3) is arranged, which seals the gap between the roller rotary valve (3) and the rotary valve housing in the area of the flow-through openings.
EP01103032A 2000-03-07 2001-02-09 Cylinder head with rotary valve Expired - Lifetime EP1132579B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10011154 2000-03-07
DE10011154A DE10011154A1 (en) 2000-03-07 2000-03-07 Cylinder head has rotary valve made of austenitic cast iron, and bore housing rotary valve is at least partially coated in region of running surface for rotary valve

Publications (2)

Publication Number Publication Date
EP1132579A1 true EP1132579A1 (en) 2001-09-12
EP1132579B1 EP1132579B1 (en) 2004-10-06

Family

ID=7633882

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01103032A Expired - Lifetime EP1132579B1 (en) 2000-03-07 2001-02-09 Cylinder head with rotary valve

Country Status (3)

Country Link
US (1) US20010020693A1 (en)
EP (1) EP1132579B1 (en)
DE (2) DE10011154A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009056239A1 (en) * 2007-11-02 2009-05-07 Märkisches Werk GmbH Intake or discharge valve for a combustion engine, and method for the production thereof
EP2573337A1 (en) * 2011-09-23 2013-03-27 Arno Hofmann Assembly of a gate valve and a seal system for sealing the gate valve of a thermal engine

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7866343B2 (en) 2002-12-18 2011-01-11 Masco Corporation Of Indiana Faucet
US8220489B2 (en) 2002-12-18 2012-07-17 Vapor Technologies Inc. Faucet with wear-resistant valve component
US7866342B2 (en) 2002-12-18 2011-01-11 Vapor Technologies, Inc. Valve component for faucet
US8555921B2 (en) 2002-12-18 2013-10-15 Vapor Technologies Inc. Faucet component with coating
DE102005006778B4 (en) * 2005-02-12 2013-10-02 Eisenwerk Erla Gmbh High-alloyed cast iron material and use of the material for thermally highly stressed components
US8528511B2 (en) * 2005-09-23 2013-09-10 Jp Scope, Inc. Variable travel valve apparatus for an internal combustion engine
EP2530261B1 (en) * 2005-09-23 2014-04-30 JP Scope, Inc. Valve apparatus for an internal combustion engine
MX2019002668A (en) * 2016-09-09 2020-08-13 Charles Price Variable travel valve apparatus for an internal combustion engine.
US10941679B2 (en) * 2018-02-21 2021-03-09 Grace Capital Partners Llc Enhanced oiling for sliding valve aspiration system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125890A (en) * 1982-03-22 1984-03-14 George Edward Ablett I.C. Engine rotary valve
CH642143A5 (en) * 1980-07-10 1984-03-30 Rino Doriguzzi Intake/exhaust unit for a four-stroke internal combustion engine
FR2553469A1 (en) 1983-10-17 1985-04-19 Leboux Patrick Timing device for four-stroke internal combustion engine
JPH04300424A (en) * 1991-03-28 1992-10-23 Ishikawajima Harima Heavy Ind Co Ltd Coupling structure of rotary shaft and rotor for rotary machine and coupling method
WO1994024240A1 (en) 1993-04-08 1994-10-27 The Procter & Gamble Company Secondary (2,3) alkyl sulfate surfactants in stable enzyme-containing detergent compositions

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA931045A (en) * 1970-05-29 1973-07-31 R. Deane William Rotary valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH642143A5 (en) * 1980-07-10 1984-03-30 Rino Doriguzzi Intake/exhaust unit for a four-stroke internal combustion engine
GB2125890A (en) * 1982-03-22 1984-03-14 George Edward Ablett I.C. Engine rotary valve
FR2553469A1 (en) 1983-10-17 1985-04-19 Leboux Patrick Timing device for four-stroke internal combustion engine
JPH04300424A (en) * 1991-03-28 1992-10-23 Ishikawajima Harima Heavy Ind Co Ltd Coupling structure of rotary shaft and rotor for rotary machine and coupling method
WO1994024240A1 (en) 1993-04-08 1994-10-27 The Procter & Gamble Company Secondary (2,3) alkyl sulfate surfactants in stable enzyme-containing detergent compositions

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 114 (M - 1377) 9 March 1993 (1993-03-09) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009056239A1 (en) * 2007-11-02 2009-05-07 Märkisches Werk GmbH Intake or discharge valve for a combustion engine, and method for the production thereof
EP2573337A1 (en) * 2011-09-23 2013-03-27 Arno Hofmann Assembly of a gate valve and a seal system for sealing the gate valve of a thermal engine

Also Published As

Publication number Publication date
EP1132579B1 (en) 2004-10-06
US20010020693A1 (en) 2001-09-13
DE50103932D1 (en) 2004-11-11
DE10011154A1 (en) 2001-09-13

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