DE10226013B4 - Valve seat for internal combustion engine - Google Patents
Valve seat for internal combustion engine Download PDFInfo
- Publication number
- DE10226013B4 DE10226013B4 DE10226013A DE10226013A DE10226013B4 DE 10226013 B4 DE10226013 B4 DE 10226013B4 DE 10226013 A DE10226013 A DE 10226013A DE 10226013 A DE10226013 A DE 10226013A DE 10226013 B4 DE10226013 B4 DE 10226013B4
- Authority
- DE
- Germany
- Prior art keywords
- sealing ring
- valve seat
- cylinder head
- spraying
- sprayed layer
- 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
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
- 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
- F01L3/22—Valve-seats not provided for in preceding subgroups of this group; Fixing of 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
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/01—Absolute values
Abstract
Ventilsitz
(4) für
eine Brennkraftmaschine mit einem Dichtring (8), der einen in einem
Zylinderkopf (2) ringförmig
entlang des Ventilsitzes (4) verlaufenden Kühlkanal (6) abdichtet
dadurch
gekennzeichnet,
• dass
der Dichtring (8) mit einer thermischen Spritzschicht (10),
• aufgebracht
durch Plasmaspritzen, Flammspritzen, Lichtbogendrahtspritzen oder
kinetisches Kaltgaskompaktieren derart überzogen ist,
• dass zumindest
Fugen (19, 21), gebildet durch Berührungsflächen (18, 20) von Dichtring
(8) und Zylinderkopf (2) durch die Spritzschicht (10) überdeckt
sind und
• dass
eine Überdeckung
(11) im Zylinderkopf (2) zur Vorfixierung des Dichtringes (8) vor
dem Aufbringen der Spritzschicht (10) vorgesehen ist.Valve seat (4) for an internal combustion engine with a sealing ring (8) which seals a in a cylinder head (2) annularly along the valve seat (4) extending cooling channel (6)
characterized,
• that the sealing ring (8) with a thermal spray layer (10),
Coated by plasma spraying, flame spraying, arc wire spraying or kinetic cold gas compacting in such a way,
• that at least joints (19, 21) formed by contact surfaces (18, 20) of sealing ring (8) and cylinder head (2) are covered by the spray layer (10) and
• that an overlap (11) in the cylinder head (2) for pre-fixing of the sealing ring (8) is provided before the application of the spray layer (10).
Description
Die Erfindung betrifft einen Ventilsitz nach dem Oberbegriff von Anspruch 1.The The invention relates to a valve seat according to the preamble of claim 1.
Bei
Hochleistungsmotoren, insbesondere Ottomotoren, kann auf Grund der
auftretenden thermischen Belastung eine Kühlung des Zylinderkopfes im
Bereich der Ventilsitze erforderlich sein. Die
Eine ähnliche
Anordnung beschreibt die
Beide Anordnungen erfordern jedoch einen hohen Montageaufwand um die Abdichtung des Kühlkanals zu gewährleisten.Both However, arrangements require a high installation effort around the seal of the cooling channel to ensure.
In
der
Die Aufgabe der Erfindung besteht darin, bei geringen Montageaufwand eine verbesserte Abdichtung des Kühlkanals zu erzielen.The The object of the invention is, with low installation costs to achieve an improved sealing of the cooling channel.
Die Lösung der Aufgabe besteht in einem Ventilsitz nach Anspruch 1.The solution the object consists in a valve seat according to claim 1.
Der erfindungsgemäße Ventilsitz nach Anspruch 1 zeichnet sich dadurch aus, dass ein Dichtring einen Kühlkanal abdichtet, der in einem Zylinderkopf ringförmig entlang eines Ventilsitzes verläuft. Der Dichtring liegt am Zylinderkopf an und bildet mit diesem Berührungsflächen. Die Berührungsflächen weisen Fugen auf, die zur Abdichtung mit einer thermischen Spritzschicht überzogen sind.Of the Valve seat according to the invention according to claim 1 characterized in that a sealing ring a cooling channel seals in a cylinder head annular along a valve seat runs. Of the Sealing ring abuts the cylinder head and forms with this contact surfaces. The Have contact surfaces Joints, which are covered with a thermal sprayed layer for sealing are.
Der Dichtring ist bevorzugt in Form einer Aluminium-Büchse ausgestaltet. Zur Montage wird der Dichtring in eine Aussparung des Zylinderkopfes eingelegt. Der Dichtring wird anschließend mit der Spritzschicht versehen. Die Spritzschicht gewährleistet den Halt des Dichtrings im Zylinderkopf während der Montage. Ebenfalls vorteilhaft ist eine gute Dichtwirkung der Spritzschicht gegenüber des Kühlkanals.Of the Sealing ring is preferably designed in the form of an aluminum sleeve. For mounting the sealing ring is in a recess of the cylinder head inserted. The sealing ring is then with the sprayed layer Mistake. The sprayed layer ensures the maintenance of the sealing ring in the cylinder head during assembly. Also advantageous is a good sealing effect of the spray layer over the Cooling channel.
Ein Ventil liegt im geschlossenen Zustand an der Spritzschicht an. Die Spritzschicht ist durch Feindrehen derart ausgestaltet, dass sie die Konturen des Ventils abbildet und mit dem Ventil eine dichte Passung bildet. Durch die Auswahl des Materials der Spritzschicht kann eine, bezüglich Verschleiß und Reibung optimierte Werkstoffpaarung zwischen dem Ventilwerkstoff und Schichtwerkstoff erzielt werden.One Valve is in the closed state to the sprayed layer. The Spray coating is designed by fine turning so that they the contours of the valve and with the valve a dense Fit forms. By selecting the material of the sprayed layer can one, re Wear and friction Optimized material pairing between the valve material and coating material be achieved.
Unter einer thermischen Spritzschicht wird eine Schicht verstanden, die durch ein beliebiges thermisches Spritzverfahren aufgebracht werden kann. Hierunter fallen z. B. Plasmaspritzen, Flammspritzen, Lichtbogendrahtspritzen und kinetisches Kaltgaskompaktieren. Bevorzugt wird ein metallisches Schichtmaterial gewählt, das auf das Ventilmaterial abgestimmt ist. Keramische oder metallkeramische Schichtmaterialien sind bei entsprechenden Ventileigenschaften denkbar.Under a thermal spray coating is understood to mean a coating which can be applied by any thermal spraying method. These include z. As plasma spraying, flame spraying, electric wire spraying and kinetic cold gas compacting. Preference is given to a metallic Layer material selected, which is tuned to the valve material. Ceramic or metal-ceramic Layer materials are conceivable with corresponding valve properties.
Eine vorteilhafte Ausgestaltungsform der Erfindung ist in den folgenden Figuren dargestellt.A advantageous embodiment of the invention is in the following Figures shown.
Es zeigen:It demonstrate:
In
Die
vergrößerte Darstellung
in
Die
Spritzschicht
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10226013A DE10226013B4 (en) | 2002-06-12 | 2002-06-12 | Valve seat for internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10226013A DE10226013B4 (en) | 2002-06-12 | 2002-06-12 | Valve seat for internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10226013A1 DE10226013A1 (en) | 2004-01-08 |
DE10226013B4 true DE10226013B4 (en) | 2006-10-12 |
Family
ID=29718977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10226013A Expired - Fee Related DE10226013B4 (en) | 2002-06-12 | 2002-06-12 | Valve seat for internal combustion engine |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10226013B4 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016006640A1 (en) | 2016-06-02 | 2016-12-22 | Daimler Ag | Method for producing a valve seat ring for a reciprocating engine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3205676A1 (en) * | 1981-02-19 | 1982-09-09 | List, Hans, Prof. Dipl.-Ing. Dr.Dr.h.c., 8020 Graz | Cooled valve seat for inlet and exhaust valves of internal combustion engines |
JPS6042320A (en) * | 1983-08-02 | 1985-03-06 | チ−ズブロ−ポンズ、インコ−ポレ−テツド | Manicure remover |
DE4328904C2 (en) * | 1992-09-24 | 1994-11-17 | Avl Verbrennungskraft Messtech | Internal combustion engine with a partially cooled valve seat ring |
-
2002
- 2002-06-12 DE DE10226013A patent/DE10226013B4/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3205676A1 (en) * | 1981-02-19 | 1982-09-09 | List, Hans, Prof. Dipl.-Ing. Dr.Dr.h.c., 8020 Graz | Cooled valve seat for inlet and exhaust valves of internal combustion engines |
JPS6042320A (en) * | 1983-08-02 | 1985-03-06 | チ−ズブロ−ポンズ、インコ−ポレ−テツド | Manicure remover |
DE4328904C2 (en) * | 1992-09-24 | 1994-11-17 | Avl Verbrennungskraft Messtech | Internal combustion engine with a partially cooled valve seat ring |
Also Published As
Publication number | Publication date |
---|---|
DE10226013A1 (en) | 2004-01-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
|
8327 | Change in the person/name/address of the patent owner |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
8320 | Willingness to grant licences declared (paragraph 23) | ||
8321 | Willingness to grant licences paragraph 23 withdrawn | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |