EP1497538B1 - Beweglicher, heissen gasen ausgesetzter verschlusskörper eines ventiles - Google Patents
Beweglicher, heissen gasen ausgesetzter verschlusskörper eines ventiles Download PDFInfo
- Publication number
- EP1497538B1 EP1497538B1 EP03722244A EP03722244A EP1497538B1 EP 1497538 B1 EP1497538 B1 EP 1497538B1 EP 03722244 A EP03722244 A EP 03722244A EP 03722244 A EP03722244 A EP 03722244A EP 1497538 B1 EP1497538 B1 EP 1497538B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing body
- valve
- area
- sealing
- hot gases
- 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.)
- Expired - Fee Related
Links
Images
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
- 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
- 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
- F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials
- F01L3/04—Coated valve members or valve-seats
-
- 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
- F01L3/12—Cooling of 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
- F01L2303/00—Manufacturing of components used in valve arrangements
Definitions
- the invention relates to a mobile, hot gases exposed Closure body of a valve, in particular a Gas exchange valves of an internal combustion engine according to the preamble of claim 1
- closure body of gas exchange valves of an internal combustion engine it is known, the closure body at least in Parts of the acted upon by the hot combustion gases Surface of an inside, outside with a Form insulating material provided base material.
- the insulating material can in different forms be upset.
- the second material extends from the hottest zone that it completely fills until into the sealing area, ie into that area, in the valve disc with the valve closed its associated valve seat is applied.
- valve plate of the above Document applies to that known from US-A-2,664,873 Valve coating.
- the invention deals with the problem of a surface finish of the generic closure body in the particularly acted upon by hot gases To create zones through which at a high wear resistance of the valve seat each touching sealing area a good heat dissipation from the closure body done can.
- the heat dissipation should in particular in a Art done, through which in incidentsbereiehen the closure body, in which this oil lubricated slides in guiding means, no ⁇ lverkokung by a too hot closure body can occur.
- the invention is based on the general idea that the hot gas exposed surface areas of the closure body not to be provided with thermal insulation material, but with respect to a base material of the closure body higher heat-conductive material, in particular extends to those areas in which the Closure body contacted the valve seat with the valve closed. This is intended to heat to a greater extent over the Valve seat be dissipated.
- the basic material can be against it designed primarily for strength reasons become. Furthermore, by the inventive measure within the closure body degradation of temperature and Peak voltage reached.
- Thermally conductive surface material can be in any way be attached to the body, such as by coating or plating.
- the thickness of the good thermal conductivity Surface material can be up to about 5 mm ranging, preferably layer thicknesses between 0.1 and 1 mm should be used.
- the good heat conducting outer layer of Closure body even with a thin corrosion protection layer be taken care of, that thereby the thermal conductivity in the outer closure body area not or at least very little is lowered.
- Embodiments of the invention are in the drawing shown schematically.
- both versions of the valve disk is in each case in the area, the hot combustion gases of the Combustion chamber of an internal combustion engine is exposed to a serving as a base material first material 1 a the surface forming second material 2 with a higher thermal conductivity plated.
- the plated second material 2 with a relation to the first material 1 higher thermal conductivity extends radially outward to direct close to the area in which the valve disk is closed Valve rests against the associated valve seat.
- the second material 2 with the higher thermal conductivity over the radially outer edges of the valve disk in Projecting direction of the valve stem, although the area of the valve disk that directs the valve seat contacted, remain spared for wear reasons should.
- valve stem with outer cone and inner cylindrical tube area forming Material consist of second material 2.
- the second material can be areas of different Have thicknesses.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Lift Valve (AREA)
Description
- Fig. 1
- einen Ventilteller mit angrenzendem Ventilschaft eines Gaswechselventiles eines Verbrennungsmotors mit einem Ventilteller mit Vollmaterial im radialen Außenbereich,
- Fig. 2
- einen Ventilteller mit angrenzendem Ventilschaft, wobei im Gegensatz zu der Ausführung in Fig. 1 ein im radialen Außenbereich hohler Ventilteller vorliegt.
Claims (6)
- Beweglicher, heißen Gasen ausgesetzter Verschlußkörper eines Ventiles, insbesondere eines Gaswechselventils eines Verbrennungsmotors, mit einem an einen Ventilsitzring anlegbaren Dichtungsbereich, bei demzumindest ein den heißen Gasen am stärksten ausgesetzter oberflächenbereich des Verschlußkörpers bis direkt an den Dichtungsbereich dieses Verschlußkörpers aus jeweils wenigstens einem ersten und einem zweiten Material (1 bzw. 2) besteht unddas zweite (2) das erste (1) Material nach außen wärmeleitend überdeckt und gegenüber dem ersten Material (1) eine höhere Wärmeleitfähigkeit besitzt,
- Verschlußkörper nach Anspruch 1,
dadurch, gekennzeichnet, dass das zweite Material (2) sich unter Ausschluß des Dichtungsbereiches, in dem der Verschlußkörper den Ventilsitzring kontaktiert, über den Dichtungsbereich hinaus erstreckt. - Verschlußkörper nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass das zweite Material (2) eine Dicke bis zu 5 mm einnimmt. - Verschlußkörper nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass das zweite Material (2) eine Dicke zwischen 0,1 und 1 mm besitzt. - Verschlußkörper nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass das zweite Material (2) auf dem ersten Material (1) aufplattiert oder durch Beschichten aufgebracht ist. - Verschlußkörper nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass das zweite Material (2) mit mindestens einer korrosionsschützenden Schicht überzogen ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10217719A DE10217719A1 (de) | 2002-04-20 | 2002-04-20 | Beweglicher, heißen Gasen ausgesetzter Verschlusskörper eines Ventiles |
DE10217719 | 2002-04-20 | ||
PCT/DE2003/001039 WO2003089768A1 (de) | 2002-04-20 | 2003-03-29 | Beweglicher, heissen gasen ausgesetzter verschlusskörper eines ventiles |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1497538A1 EP1497538A1 (de) | 2005-01-19 |
EP1497538B1 true EP1497538B1 (de) | 2005-08-17 |
Family
ID=28798641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03722244A Expired - Fee Related EP1497538B1 (de) | 2002-04-20 | 2003-03-29 | Beweglicher, heissen gasen ausgesetzter verschlusskörper eines ventiles |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1497538B1 (de) |
DE (2) | DE10217719A1 (de) |
WO (1) | WO2003089768A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2182183A1 (de) * | 2008-10-31 | 2010-05-05 | Mahle International GmbH | Beweglicher, heißen Gasen ausgesetzter Verschlusskörper eines Ventiles |
DE102006061128B4 (de) * | 2006-12-22 | 2015-06-11 | Mahle International Gmbh | Gaswechselventil eines Verbrennungsmotors |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004010309A1 (de) * | 2004-03-03 | 2005-09-22 | Mahle Ventiltrieb Gmbh | Gaswechselventil eines Verbrennungsmotors |
US7240895B2 (en) | 2004-03-03 | 2007-07-10 | Mahle Ventiltrieb Gmbh | Gas exchange valve for an internal combustion engine |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE367003C (de) * | 1923-01-15 | Georg Bergmann Dr Ing | Kuehlvorrichtung fuer Ventile von Verbrennungskraftmaschinen | |
GB577427A (en) * | 1943-11-23 | 1946-05-17 | Henry Weslake | Improvements in or relating to valve assemblages for internal-combustion engines |
US2664873A (en) * | 1946-08-09 | 1954-01-05 | Shell Dev | Coated metal product and method of producting same |
US4362134A (en) * | 1978-05-22 | 1982-12-07 | Eaton Corporation | Shielded valve |
US4351292A (en) * | 1980-10-03 | 1982-09-28 | Eaton Corporation | Poppet valve shield |
US4433652A (en) * | 1982-06-11 | 1984-02-28 | Standard Oil Company | Composite valve and process |
DE3926431A1 (de) * | 1989-08-10 | 1991-02-14 | Audi Ag | Hubventil |
DK173136B1 (da) * | 1996-05-15 | 2000-02-07 | Man B & W Diesel As | Bevægeligt vægelement i form af en udstødsventilspindel eller et stempel i en forbrændingsmotor. |
DE19804053A1 (de) * | 1998-02-03 | 1999-08-05 | Mwp Mahle J Wizemann Pleuco Gm | Leichtbauventil |
-
2002
- 2002-04-20 DE DE10217719A patent/DE10217719A1/de not_active Withdrawn
-
2003
- 2003-03-29 EP EP03722244A patent/EP1497538B1/de not_active Expired - Fee Related
- 2003-03-29 WO PCT/DE2003/001039 patent/WO2003089768A1/de active IP Right Grant
- 2003-03-29 DE DE50301017T patent/DE50301017D1/de not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006061128B4 (de) * | 2006-12-22 | 2015-06-11 | Mahle International Gmbh | Gaswechselventil eines Verbrennungsmotors |
EP2182183A1 (de) * | 2008-10-31 | 2010-05-05 | Mahle International GmbH | Beweglicher, heißen Gasen ausgesetzter Verschlusskörper eines Ventiles |
Also Published As
Publication number | Publication date |
---|---|
DE50301017D1 (de) | 2005-09-22 |
WO2003089768A1 (de) | 2003-10-30 |
DE10217719A1 (de) | 2003-11-06 |
EP1497538A1 (de) | 2005-01-19 |
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