WO2015022252A1 - Leichtmetalleinlassventil - Google Patents
Leichtmetalleinlassventil Download PDFInfo
- Publication number
- WO2015022252A1 WO2015022252A1 PCT/EP2014/066936 EP2014066936W WO2015022252A1 WO 2015022252 A1 WO2015022252 A1 WO 2015022252A1 EP 2014066936 W EP2014066936 W EP 2014066936W WO 2015022252 A1 WO2015022252 A1 WO 2015022252A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light metal
- inlet valve
- valve
- metal inlet
- vol
- Prior art date
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
- 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
-
- 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
Definitions
- the present invention relates to a light metal inlet valve for a
- the invention also relates to an internal combustion engine having at least one such light metal inlet valve.
- Inlet valves of gasoline engines are comparatively moderate
- the present invention therefore deals with the problem of a
- Specify light metal inlet valve which can be used in internal combustion engines.
- the present invention is based on the general idea
- the light metal inlet valve for an internal combustion engine in addition to a valve stem and a valve disc with a difference from previous
- the convex curved valve disk surface makes the geometry or design so robust be interpreted as it is for the use of the light metal inlet valve in
- Light metal inlet valve can be optimized. Particularly expedient here was a crowning of the valve disk surface, so that it is about 0.5-2 mm higher in the middle than at the edge of the valve disk.
- the groove angle ⁇ of the valve groove should be greater than 30 °.
- the light metal inlet valve is made of aluminum or an alloy thereof and consequently has a significantly lower weight than a comparable valve made of steel, which is particularly noticeable in the fast translational movements during operation of the internal combustion engine.
- the light metal valve is formed of an aluminum alloy, the one
- the light metal valve is completely or at least partially coated, for example with chromium or nickel or nitrided or with a Ceramic coating, in particular with titanium dioxide.
- Chromium and nickel coatings and nitriding layers are wear protection layers already known as state of the art.
- An innovation is the coating of an aluminum inlet valve with ceramic, which also the
- the functional surfaces are the valve seat, the valve stem, the valve grooves and the shank end surface.
- a particularly advantageous wear protection layer with ceramic coating results in hard anodization of the aluminum with the simultaneous embedding of nanoceramic particles. The resulting
- Ceramic coating is a micro-crosslinked nanostructured corundum layer which has a very high hardness and can thus coat the valve.
- Fig. 1 shows an inventive light metal valve in the region of a valve stem and a valve disk.
- a light-metal inlet valve 1 according to the invention for a combustion engine has a valve stem 2 and a valve disk 4 adjoining it via a valve throat 3.
- Valve plate 4 has a convexly curved valve plate surface 5, wherein the curved valve plate surface 5 in the middle by 0.5 mm ⁇ a ⁇ 2.0 mm higher than at the edge.
- the convex elevation a is thus between 0.5 and 2.0 mm.
- the light metal inlet valve 1 according to the invention is made of aluminum or an aluminum alloy, which may in particular have the following constituents: silicon 23-27 vol.%, Iron 3-4 vol.%, Nickel 2.5-3.5 vol. -%, magnesium 0.3-0.7 vol .-%, titanium maximum 0.5 vol .-%, zirconium maximum 0.5 vol .-%, chromium maximum 0.5 vol .-% and the rest
- Light metal inlet valve 1 has the following constituents: nickel 4-6% by volume, iron 1, 5-3.5% by volume, copper 1, 5-3.5% by volume, manganese 0.5-1, 5 vol.%, Magnesium 0.4-0.8 vol.%, Titanium 0.4-0.8 vol.%, Zirconium 0.5-1.0 vol.%, Molybdenum 0.6- 1, 0 vol .-% and balance aluminum.
- Light metal inlet valve 1 preferably has a minimum tensile strength of 200 MPa at 300 ° C, 150 MPa at 350 ° C and 85 MPa at 400 ° C. Moreover, it is also conceivable that the light metal inlet valve 1 according to the invention is at least partially coated, in particular with chromium or nickel. It is also conceivable that the light metal inlet valve 1 has wholly or at least partially a ceramic coating, in particular a titanium dioxide-containing ceramic coating or a hard anodized surface with embedded nanoceramic particles.
- the cylindrical part of the valve stem 2 may usually have a diameter d between 5.5 mm and 7.0 mm, wherein it is also conceivable that the diameter d decreases conically at the transition from Hohlkhlradius R to the cylindrical part of the valve stem.
- the valve head 4 preferably has a radius r which is greater than 15 mm.
- the light metal inlet valve according to the invention which is usually designed as an aluminum inlet valve, but in theory can also be formed from another light metal, its use in a gasoline engine is possible for the first time by the selected geometric shape of the light metal inlet valve 1.
- the previously known from steel valves geometric shape does not allow sufficiently high robustness of the design. This is inventively by the cambered, i. convexly outwardly curved valve disk surface 5, and the comparatively large groove angle ⁇ is reached, which stands for the slow transition between the valve disk 4 in the valve throat 3 and thus the comparatively squat shape of the valve throat 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14747683.2A EP3033500B1 (de) | 2013-08-14 | 2014-08-06 | Leichtmetalleinlassventil |
JP2016533892A JP2016534277A (ja) | 2013-08-14 | 2014-08-06 | 軽金属吸気弁 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013216188.3 | 2013-08-14 | ||
DE201310216188 DE102013216188A1 (de) | 2013-08-14 | 2013-08-14 | Leichtmetalleinlassventil |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015022252A1 true WO2015022252A1 (de) | 2015-02-19 |
Family
ID=51266358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2014/066936 WO2015022252A1 (de) | 2013-08-14 | 2014-08-06 | Leichtmetalleinlassventil |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3033500B1 (de) |
JP (1) | JP2016534277A (de) |
DE (1) | DE102013216188A1 (de) |
WO (1) | WO2015022252A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113302381A (zh) * | 2019-01-22 | 2021-08-24 | 卡特彼勒公司 | 发动机和带有轮廓设定成用于减轻弦应力的头下圆角的气体交换阀 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017119887A1 (de) * | 2017-08-30 | 2019-02-28 | Man Truck & Bus Ag | Ventil für einen Verbrennungsmotor |
DE102019207536A1 (de) * | 2019-05-23 | 2020-11-26 | Mahle International Gmbh | Gaswechselventil |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191216444A (en) * | 1911-06-15 | 1913-03-13 | Adlerwerke Kleyer Ag H | Valve-gear more especially for High Speed Engines. |
GB123416A (en) * | 1918-02-28 | 1919-02-27 | John Buchanan | Composite Valve for all Classes of Internal Combustion Engines. |
GB168115A (en) * | 1920-05-13 | 1921-08-15 | Gen Electric | Improvements in and relating to devices for reducing noise of impact in valve-actuating and other mechanism and methods of making such devices |
GB321321A (en) * | 1928-10-06 | 1929-11-07 | Marc Birkigt | Improvements in or relating to valves of the mushroom type for internal combustion or other engines |
GB419213A (en) * | 1932-05-12 | 1934-11-08 | Thompson Prod Inc | Improvements in or relating to valve seat inserts for internal combustion engines |
GB440206A (en) * | 1934-06-23 | 1935-12-23 | Clerk Robert Cecil | Improvements in or relating to poppet valves for internal combustion engines |
GB505467A (en) * | 1937-07-11 | 1939-05-11 | Alfred Buechi | Improvements in or relating to four stroke cycle internal combustion engines operating by means of liquid fuel injection |
GB571554A (en) * | 1943-05-08 | 1945-08-29 | Mallory Metallurg Prod Ltd | Improvements in or relating to valves |
US5169460A (en) * | 1990-01-18 | 1992-12-08 | Mitsubishi Materials Corporation | Engine valve of titanium alloy |
US6009843A (en) * | 1997-10-22 | 2000-01-04 | 3M Innovative Properties Company | Fiber reinforced, titanium composite engine valve |
EP1174593A2 (de) * | 2000-07-18 | 2002-01-23 | Fuji Oozx Inc. | Hubventil aus Titanlegierung und Verfahren zu dessen Herstellen |
DE10204122C1 (de) * | 2002-02-01 | 2003-05-08 | Daimler Chrysler Ag | Gebautes Ventil für Hubkolbenmaschinen und Verfahren zu dessen Herstellung |
EP1462621A1 (de) * | 2003-03-28 | 2004-09-29 | Eaton Corporation | Zusammengesetztes, leichtes Hubventil für Brennkraftmaschine |
WO2006086571A1 (en) * | 2005-02-11 | 2006-08-17 | Rubert Anthony T | Exhaust valve for internal combustion engine |
US20090282675A1 (en) * | 2008-05-13 | 2009-11-19 | Gm Global Technology Operations, Inc. | Method of making titanium-based automotive engine valves using a powder metallurgy process |
EP2540998A1 (de) * | 2010-02-26 | 2013-01-02 | Nippon Steel Corporation | Fahrzeugmotorventil mit einer titanlegierung und hervorragender wärmebeständigkeit |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4122817A (en) * | 1975-05-01 | 1978-10-31 | Trw Inc. | Internal combustion valve having an iron based hard-facing alloy contact surface |
EP0144898B1 (de) * | 1983-12-02 | 1990-02-07 | Sumitomo Electric Industries Limited | Aluminiumlegierungen und Verfahren zu ihrer Herstellung |
DE3719077A1 (de) * | 1987-06-06 | 1988-12-22 | Daimler Benz Ag | Beschichtetes ventil fuer verbrennungsmotoren |
JP3328753B2 (ja) * | 1993-12-22 | 2002-09-30 | フジオーゼックス株式会社 | 肉盛用Fe基合金組成物 |
JPH1162525A (ja) * | 1997-08-07 | 1999-03-05 | Fuji Oozx Inc | 内燃機関用バルブ及びその製造方法 |
DE19804053A1 (de) * | 1998-02-03 | 1999-08-05 | Mwp Mahle J Wizemann Pleuco Gm | Leichtbauventil |
USH1869H (en) * | 1998-12-18 | 2000-10-03 | Caterpillar Inc. | Valve train components having an oxidation and corrosion-resistant thermal spray coating |
JP3845035B2 (ja) * | 2002-03-27 | 2006-11-15 | 日本軽金属株式会社 | 内燃機関用ピストンの製造方法及び内燃機関用ピストン |
DE10354480A1 (de) * | 2003-11-21 | 2005-06-23 | Volkswagen Ag | Brennkraftmaschine mit Einlassventilanordnung |
JP4771868B2 (ja) * | 2006-06-06 | 2011-09-14 | サンコール株式会社 | 内燃機関用バルブ構造 |
-
2013
- 2013-08-14 DE DE201310216188 patent/DE102013216188A1/de not_active Withdrawn
-
2014
- 2014-08-06 WO PCT/EP2014/066936 patent/WO2015022252A1/de active Application Filing
- 2014-08-06 EP EP14747683.2A patent/EP3033500B1/de not_active Not-in-force
- 2014-08-06 JP JP2016533892A patent/JP2016534277A/ja active Pending
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191216444A (en) * | 1911-06-15 | 1913-03-13 | Adlerwerke Kleyer Ag H | Valve-gear more especially for High Speed Engines. |
GB123416A (en) * | 1918-02-28 | 1919-02-27 | John Buchanan | Composite Valve for all Classes of Internal Combustion Engines. |
GB168115A (en) * | 1920-05-13 | 1921-08-15 | Gen Electric | Improvements in and relating to devices for reducing noise of impact in valve-actuating and other mechanism and methods of making such devices |
GB321321A (en) * | 1928-10-06 | 1929-11-07 | Marc Birkigt | Improvements in or relating to valves of the mushroom type for internal combustion or other engines |
GB419213A (en) * | 1932-05-12 | 1934-11-08 | Thompson Prod Inc | Improvements in or relating to valve seat inserts for internal combustion engines |
GB440206A (en) * | 1934-06-23 | 1935-12-23 | Clerk Robert Cecil | Improvements in or relating to poppet valves for internal combustion engines |
GB505467A (en) * | 1937-07-11 | 1939-05-11 | Alfred Buechi | Improvements in or relating to four stroke cycle internal combustion engines operating by means of liquid fuel injection |
GB571554A (en) * | 1943-05-08 | 1945-08-29 | Mallory Metallurg Prod Ltd | Improvements in or relating to valves |
US5169460A (en) * | 1990-01-18 | 1992-12-08 | Mitsubishi Materials Corporation | Engine valve of titanium alloy |
US6009843A (en) * | 1997-10-22 | 2000-01-04 | 3M Innovative Properties Company | Fiber reinforced, titanium composite engine valve |
EP1174593A2 (de) * | 2000-07-18 | 2002-01-23 | Fuji Oozx Inc. | Hubventil aus Titanlegierung und Verfahren zu dessen Herstellen |
DE10204122C1 (de) * | 2002-02-01 | 2003-05-08 | Daimler Chrysler Ag | Gebautes Ventil für Hubkolbenmaschinen und Verfahren zu dessen Herstellung |
EP1462621A1 (de) * | 2003-03-28 | 2004-09-29 | Eaton Corporation | Zusammengesetztes, leichtes Hubventil für Brennkraftmaschine |
WO2006086571A1 (en) * | 2005-02-11 | 2006-08-17 | Rubert Anthony T | Exhaust valve for internal combustion engine |
US20090282675A1 (en) * | 2008-05-13 | 2009-11-19 | Gm Global Technology Operations, Inc. | Method of making titanium-based automotive engine valves using a powder metallurgy process |
EP2540998A1 (de) * | 2010-02-26 | 2013-01-02 | Nippon Steel Corporation | Fahrzeugmotorventil mit einer titanlegierung und hervorragender wärmebeständigkeit |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113302381A (zh) * | 2019-01-22 | 2021-08-24 | 卡特彼勒公司 | 发动机和带有轮廓设定成用于减轻弦应力的头下圆角的气体交换阀 |
Also Published As
Publication number | Publication date |
---|---|
EP3033500A1 (de) | 2016-06-22 |
DE102013216188A1 (de) | 2015-03-12 |
JP2016534277A (ja) | 2016-11-04 |
EP3033500B1 (de) | 2017-03-29 |
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