EP1053388A1 - Lightweight valve - Google Patents
Lightweight valveInfo
- Publication number
- EP1053388A1 EP1053388A1 EP99908830A EP99908830A EP1053388A1 EP 1053388 A1 EP1053388 A1 EP 1053388A1 EP 99908830 A EP99908830 A EP 99908830A EP 99908830 A EP99908830 A EP 99908830A EP 1053388 A1 EP1053388 A1 EP 1053388A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- stem
- cone
- valve plate
- lightweight
- 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
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
- F01L3/12—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
- 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
- F01L3/02—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
- F01L3/20—Shapes or constructions of valve members, not provided for in preceding subgroups of this group
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49298—Poppet or I.C. engine valve or valve seat making
- Y10T29/49307—Composite or hollow valve stem or head making
Definitions
- the invention relates to a lightweight valve, in particular for an internal combustion engine.
- valve is known from DE 36 25 590 A.
- the valve disclosed there is intended to contribute to the development of an engine type with heat-insulated combustion chambers.
- the valve disk facing the combustion chamber is particularly thin-walled. This measure is intended to bring about a low heat absorption of the valve plate and correspondingly low heat losses.
- additional components are provided as a support between the valve plate and the valve stem in the extension of the valve stem.
- Lightweight valves are also known for. B. from DE 1 960 331 A, EP 0 091 097 A, US 2,731,708 or US 1,294,416.
- the support of the valve plate against the stem is also known from DE 36 25 590 A.
- a disadvantage of the solutions disclosed there, however, is that the support is provided with the aid of an additional intermediate piece, which is fixed between the valve plate and the stem, and that the wall thickness - 3 -
- valve plate is very small, so that deformations of the valve head can be expected.
- the invention is therefore concerned with the problem of increasing the stiffness of the valve head in a lightweight construction valve and of making the valve easier to manufacture.
- deformation values can be achieved which are in the range of the values of valves with a valve head made of solid material.
- the mass reduction of these lightweight valves is at least 40% compared to solid steel valves.
- the embodiment according to claim 1 represents a far-reaching departure from the previously customary design for lightweight valves, since the valve cone is no longer in one piece with the valve stem, but is manufactured as an individual part and the valve stem - possibly with an enlarged diameter - continues towards the valve disk .
- the conventional design of a one-piece tapered stem part is retained and the valve disk is supported against the stem by an integral extension which is integral with the stem part.
- the shaft is preferably designed as a drawn or welded tube or consists of solid material. - 4 -
- the valve cone is preferably fixed to the stem by soldering or welding.
- 'Radially inside' means: away from the outside diameter of the valve disk.
- the valve according to the invention creates a lightweight valve which has high rigidity even with thin walls and a correspondingly low weight.
- the invention is based on the basic idea of absorbing the gas forces acting on the valve plate by directly supporting the valve plate against the stem. By supporting the valve plate against the valve stem, in connection with the valve cone, a bending-resistant rotating surface structure with an approximately triangular cross-section is created.
- Fig. 1 shows an inventive valve in cross section
- Fig. 2 shows another embodiment, valve plate and cone in two pieces
- Fig. 3 shows an embodiment with a centering for the shaft foot - 5 -
- Fig. 4 shows an embodiment with a support molded onto the valve plate
- Valve cone and support are in one piece.
- a valve 1 for an internal combustion engine consists of a stem 2, a valve base (not shown), a funnel-shaped valve cone 3 and a valve disk 4 which is produced in one piece with the valve cone.
- the diameter of the stem is enlarged at the level of the valve cone 3.
- the stem 2 is welded to the valve plate 4.
- the valve cone 3 is welded to the stem 2 at its upper end.
- the valve cone 3, the valve plate 4 and the lower, extended shaft end connecting them together form a rigid rotational surface support structure.
- the wall thickness of the valve cone 3 is smaller than the wall thickness of the valve plate 4.
- valve plate 4 and valve cone 3 are not in one piece, but are connected to one another by a weld seam.
- the shaft is made of solid material.
- the shaft below the weld seam can also have a smaller diameter than in the area above the weld seam.
- valve plate 4 and valve cone 3 are in one piece and in the valve plate 4 a centering for the end of the stem 2 is provided. A welded connection is only provided between the upper end of the valve cone 3 and the stem.
- the wall thickness of the valve disk 4 is greater than the wall thickness of the valve cone 3.
- valve plate 4 is shown with a molded collar-shaped support according to claim 6. - 6 -
- stem 2 In Fig. 5 an embodiment according to claim 8 is shown, stem 2, valve cone 3 and the support of the valve plate are made in one piece, for. B. by metal injection molding or by turning.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03014001A EP1359292A1 (en) | 1998-02-03 | 1999-01-28 | Lightweight valve |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19804053A DE19804053A1 (en) | 1998-02-03 | 1998-02-03 | Lightweight valve |
DE19804053 | 1998-02-03 | ||
PCT/EP1999/000561 WO1999040295A1 (en) | 1998-02-03 | 1999-01-28 | Lightweight valve |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03014001.6 Division-Into | 2003-06-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1053388A1 true EP1053388A1 (en) | 2000-11-22 |
EP1053388B1 EP1053388B1 (en) | 2003-12-10 |
Family
ID=7856414
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99908830A Expired - Lifetime EP1053388B1 (en) | 1998-02-03 | 1999-01-28 | Lightweight valve |
EP03014001A Withdrawn EP1359292A1 (en) | 1998-02-03 | 1999-01-28 | Lightweight valve |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03014001A Withdrawn EP1359292A1 (en) | 1998-02-03 | 1999-01-28 | Lightweight valve |
Country Status (7)
Country | Link |
---|---|
US (1) | US6354258B1 (en) |
EP (2) | EP1053388B1 (en) |
JP (1) | JP4282900B2 (en) |
AR (1) | AR018055A1 (en) |
BR (1) | BR9908554A (en) |
DE (2) | DE19804053A1 (en) |
WO (1) | WO1999040295A1 (en) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE50000201D1 (en) * | 2000-09-29 | 2002-07-11 | Ford Global Tech Inc | Valve for internal combustion engines |
DE10256274A1 (en) * | 2001-12-27 | 2003-07-17 | Mahle Ventiltrieb Gmbh | Producing method of gas shuttle valve for internal combustion engine involves correctly fitting and permanently bonding valve shaft and thrust section to predetermined length |
DE10209770A1 (en) * | 2002-03-05 | 2003-10-09 | Daimler Chrysler Ag | lightweight valve |
DE10217719A1 (en) * | 2002-04-20 | 2003-11-06 | Mahle Ventiltrieb Gmbh | Movable closure body of a valve exposed to hot gases |
DE10354077B4 (en) | 2003-11-19 | 2005-10-20 | Daimler Chrysler Ag | lightweight valve |
DE10354074B4 (en) * | 2003-11-19 | 2006-01-26 | Daimlerchrysler Ag | lightweight valve |
DE10354085B4 (en) | 2003-11-19 | 2005-11-24 | Daimlerchrysler Ag | lightweight valve |
DE10354076B4 (en) * | 2003-11-19 | 2006-03-09 | Daimlerchrysler Ag | lightweight valve |
DE10354086B4 (en) | 2003-11-19 | 2005-11-24 | Daimlerchrysler Ag | lightweight valve |
US7240895B2 (en) | 2004-03-03 | 2007-07-10 | Mahle Ventiltrieb Gmbh | Gas exchange valve for an internal combustion engine |
DE102004010309A1 (en) * | 2004-03-03 | 2005-09-22 | Mahle Ventiltrieb Gmbh | Gas exchange valve of an internal combustion engine |
US20060118177A1 (en) * | 2004-12-07 | 2006-06-08 | Ucman Robert C | Coated valve and method of making same |
DE102005005041A1 (en) * | 2005-02-03 | 2006-08-10 | Märkisches Werk GmbH | Valve for controlling the gas exchange, in particular in internal combustion engines |
DE102005027130A1 (en) * | 2005-06-11 | 2006-12-14 | Mahle International Gmbh | Gas exchange valve of an internal combustion engine |
DE102006049844A1 (en) * | 2006-10-20 | 2008-04-24 | Gkss-Forschungszentrum Geesthacht Gmbh | Process for the production of components for internal combustion engines or turbines |
DE102006061127B4 (en) * | 2006-12-22 | 2016-07-14 | Mahle International Gmbh | Metallic lightweight valve of an internal combustion engine |
DE102006061128B4 (en) * | 2006-12-22 | 2015-06-11 | Mahle International Gmbh | Gas exchange valve of an internal combustion engine |
DE102010051871A1 (en) | 2010-11-22 | 2012-05-24 | Märkisches Werk GmbH | Method for manufacturing valves for gas exchange, involves forming valve head and valve stem as hollow section, particularly for internal combustion engines |
DE102012209187A1 (en) | 2011-06-08 | 2012-12-13 | Mahle International Gmbh | Method for manufacturing metallic hollow valve of internal combustion engine, involves introducing hole into slug, and partially hollowing valve head by electrochemical removal such that cavity is filled with fluid, and forging hollow valve |
DE102011077198A1 (en) | 2011-06-08 | 2012-12-13 | Mahle International Gmbh | Method for producing a metal hollow valve with improved cooling |
DE102013203443A1 (en) * | 2013-02-28 | 2014-08-28 | Mahle International Gmbh | Metallic hollow valve |
DE102013203441A1 (en) | 2013-02-28 | 2014-08-28 | Bayerische Motoren Werke Aktiengesellschaft | Operating method for a single-axle roll stabilization system of a two-axle, two-lane vehicle |
DE102013210899A1 (en) | 2013-06-11 | 2014-12-11 | Mahle International Gmbh | Method for producing a built-up hollow valve |
DE102013210900A1 (en) * | 2013-06-11 | 2014-12-11 | Mahle International Gmbh | Gas exchange valve of an internal combustion engine |
DE102013216188A1 (en) * | 2013-08-14 | 2015-03-12 | Mahle International Gmbh | Light alloy inlet valve |
JP6653050B1 (en) * | 2018-03-20 | 2020-02-26 | 日鍛バルブ株式会社 | Hollow poppet valve for exhaust |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2734008A (en) * | 1956-02-07 | Method of making heat treating and hardening valves | ||
US1294416A (en) | 1918-01-02 | 1919-02-18 | Pfanstiehl Company Inc | Valve and method of making the same. |
US1506900A (en) * | 1922-06-29 | 1924-09-02 | Greiner Adolph | Valve |
US1557022A (en) * | 1922-11-03 | 1925-10-13 | Aeromarine Plane & Motor Compa | Valve and method of making same |
US1727621A (en) * | 1928-02-18 | 1929-09-10 | Gen Motors Corp | Exhaust valve |
DE762642C (en) * | 1942-08-21 | 1954-08-02 | Daimler Benz Ag | Exhaust valve for internal combustion engines, especially aircraft engines |
US2371548A (en) | 1943-12-06 | 1945-03-13 | Thomas F Saffady | Valve |
US2398514A (en) | 1944-10-14 | 1946-04-16 | Wilhelm B Bronander | Internal-combustion engine |
US2439240A (en) | 1945-01-18 | 1948-04-06 | Thompson Prod Inc | Braced head dome valve |
DE910492C (en) * | 1951-10-03 | 1954-05-03 | Wilhelm Schmidt | Hollow poppet valve |
US2731708A (en) | 1952-10-31 | 1956-01-24 | Teves Kg Alfred | Process for manufacture of hollow poppet valves especially for internal-combustion engines |
DE1960331A1 (en) | 1969-12-02 | 1971-06-03 | Porsche Kg | Cone valve, especially for internal combustion engines |
JPS58151306U (en) | 1982-04-05 | 1983-10-11 | 日産自動車株式会社 | Internal combustion engine intake and exhaust valves |
DE3233392A1 (en) * | 1982-08-31 | 1984-03-01 | Gebrüder Sulzer AG, 8401 Winterthur | Disc valve for a gas-changing valve |
JPS60169611A (en) | 1984-02-14 | 1985-09-03 | Mitsubishi Heavy Ind Ltd | Exhaust valve of internal-combustion engine |
DE3625590A1 (en) * | 1986-07-29 | 1988-02-04 | Odilo Schwaiger | Valves for internal combustion engines |
DE3625560A1 (en) | 1986-07-29 | 1988-02-04 | Siemens Ag | Gas laser |
JPS643007U (en) | 1987-06-25 | 1989-01-10 | ||
US5771852A (en) | 1997-03-04 | 1998-06-30 | Trw Inc. | Poppet valve with embossed neck structure |
-
1998
- 1998-02-03 DE DE19804053A patent/DE19804053A1/en not_active Ceased
-
1999
- 1999-01-28 EP EP99908830A patent/EP1053388B1/en not_active Expired - Lifetime
- 1999-01-28 US US09/601,497 patent/US6354258B1/en not_active Expired - Fee Related
- 1999-01-28 BR BR9908554-2A patent/BR9908554A/en not_active IP Right Cessation
- 1999-01-28 DE DE59908022T patent/DE59908022D1/en not_active Expired - Lifetime
- 1999-01-28 EP EP03014001A patent/EP1359292A1/en not_active Withdrawn
- 1999-01-28 JP JP2000530689A patent/JP4282900B2/en not_active Expired - Fee Related
- 1999-01-28 WO PCT/EP1999/000561 patent/WO1999040295A1/en active IP Right Grant
- 1999-02-03 AR ARP990100450A patent/AR018055A1/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9940295A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1999040295A1 (en) | 1999-08-12 |
JP4282900B2 (en) | 2009-06-24 |
EP1359292A1 (en) | 2003-11-05 |
JP2002502928A (en) | 2002-01-29 |
AR018055A1 (en) | 2001-10-31 |
DE19804053A1 (en) | 1999-08-05 |
DE59908022D1 (en) | 2004-01-22 |
US6354258B1 (en) | 2002-03-12 |
BR9908554A (en) | 2001-10-30 |
EP1053388B1 (en) | 2003-12-10 |
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