Cylinder head for an internal combustion engine

Patent metadata

Field	Value
Publication number	US-12085037-B2
Application number	US-202018029082-A
Country	US
Kind code	B2
Filing date	Sep 28, 2020
Priority date	Sep 28, 2020
Publication date	Sep 10, 2024
Grant date	Sep 10, 2024

Abstract

A cylinder head for an internal combustion engine, wherein the cylinder head ( 1 ) comprises at least one first component part ( 12 ) and at least one second component part ( 13 ) joined to the at least one first component part ( 12 ), wherein the at least one first component part ( 12 ) is manufactured with the use of at least one of the group consisting of primary shaping, forming and cutting, wherein the at least one second component part ( 13 ) is manufactured with the use of an additive manufacturing method.

First claim

The invention claimed is:

1. A system, comprising:
a cylinder head for an internal combustion engine, wherein the cylinder head comprises at least one first component part and at least one second component part joined to the at least one first component part, wherein the at least one first component part is a non-additively manufactured part, wherein the at least one second component part is an additively manufactured part; and
at least one seal is mounted between the at least one first component part and the at least one second component part.

2. The system of claim 1 , wherein the at least one first component part and the at least one second component part are joined together by at least one of an interference fit, a welded connection, a brazed connection, a positive lock, positive substance jointing, a threaded connection, and an axial mechanical load.

3. The system of claim 1 , wherein the at least one second component part is additively manufactured directly onto the at least one first component part.

4. The system of claim 1 , wherein the at least one first component part and the at least one second component part are removably coupled together via one or more fasteners.

5. The system of claim 1 , comprising a reciprocating internal combustion engine having the cylinder head.

6. The system of claim 1 , wherein at least one tempering conduit is disposed in the cylinder head for tempering the cylinder head using a tempering medium, and the at least one tempering conduit is disposed inside the second component part.

7. The system of claim 1 , wherein at least one tempering conduit is disposed in the cylinder head for tempering the cylinder head using a tempering medium, and a cross section of the at least one tempering conduit tapers in a direction of flow of the tempering medium.

8. The system of claim 1 , wherein at least one tempering conduit is disposed in the cylinder head for tempering the cylinder head using a tempering medium, and at least one supply conduit is provided for supplying the tempering medium to the at least one tempering conduit, wherein the at least one tempering conduit and/or the at least one supply conduit is configured to at least partially surround at least one pre-combustion chamber.

9. The system of claim 1 , wherein at least one tempering conduit is disposed in the cylinder head for tempering the cylinder head using a tempering medium, and at least one supply conduit is provided for supplying the tempering medium to the at least one tempering conduit, wherein the at least one supply conduit is configured to surround at least one pre-combustion chamber in a helical manner.

10. The system of claim 1 , wherein at least one tempering conduit is disposed in the cylinder head for tempering the cylinder head using a tempering medium, and the at least one tempering conduit is arranged in a vicinity of a flame deck for cooling the flame deck of the cylinder head.

11. The system of claim 1 , wherein the cylinder head comprises:
at least one inlet conduit for air and/or fuel having an inlet valve seat, and/or
at least one exhaust conduit for combustion products having an exhaust valve seat.

12. The system of claim 1 , wherein the second component part comprises all inlet valve seats and/or all exhaust valve seats of the cylinder head.

13. The system of claim 1 , wherein separate additively manufactured component parts are provided for each inlet valve seat and/or exhaust valve seat or for groups of inlet valve seats and/or exhaust valve seats.

14. The system of claim 1 , wherein at least one tempering conduit is disposed in the cylinder head for tempering the cylinder head using a tempering medium, and the at least one tempering conduit is configured to at least partially surround an inlet valve seat and/or an exhaust valve seat in a helical manner.

15. A system, comprising:
a cylinder head for an internal combustion engine, wherein the cylinder head comprises at least one first component part and at least one second component part joined to the at least one first component part, wherein the at least one first component part is a non-additively manufactured part, wherein the at least one second component part is an additively manufactured part; and
at least one tempering conduit is disposed in the cylinder head for tempering the cylinder head using a tempering medium, wherein the at least one tempering conduit comprises at least two of the following branches:
at least one branch for tempering at least one inlet valve seat and/or at least one exhaust valve seat, and/or
at least one branch for tempering at least one pre-combustion chamber, and/or
at least one branch for tempering a flame deck of the cylinder head.

16. The system of claim 15 , wherein the at least two branches and/or a supply conduit have different cross sections.

17. The system of claim 15 , wherein the tempering conduit comprises a tapering region between the at least two branches and/or a supply conduit.

18. A method, comprising:
forming at least one first component part of a cylinder head for an internal combustion engine via a non-additive manufacturing process; and
forming at least one second component part of the cylinder head comprising a spiral passage via an additive manufacturing process.

19. A method, comprising:
coupling together at least one first component part and at least one second component part of a cylinder head of an internal combustion engine, wherein the at least one first component part is not additively manufactured, and the at least one second component part is additively manufactured; and
mounting at least one seal between the at least one first component part and the at least one second component part.

20. The method of claim 19 , comprising removing coupling together the at least one first component part and the at least one second component part via one or more fasteners.

21. The method of claim 19 , wherein the at least one second component part is additively manufactured to include a spiral passage.

22. The method of claim 21 , wherein the spiral passage extends around at least one of an inlet conduit, an exhaust conduit, an inlet valve seat, an exhaust valve seat, a pre-combustion chamber, or a combination thereof.

23. The method of claim 18 , wherein the spiral passage extends around at least one of an inlet conduit, an exhaust conduit, an inlet valve seat, an exhaust valve seat, a pre-combustion chamber, or a combination thereof.

24. A system, comprising:
a cylinder head for an internal combustion engine, wherein the cylinder head comprises at least one first component part and at least one second component part joined to the at least one first component part, wherein the at least one first component part is a non-additively manufactured part, wherein the at least one second component part is an additively manufactured part forming at least one tempering conduit that extends in a circumferential direction at least partially around an inlet conduit, an exhaust conduit, an inlet valve seat, an exhaust valve seat, a pre-combustion chamber, or a combination thereof.

25. The system of claim 24 , wherein the at least one tempering conduit comprises a spiral conduit.

26. The system of claim 24 , wherein the at least one tempering conduit comprises a plurality of tempering conduits disposed about a plurality of the inlet conduit, the exhaust conduit, the inlet valve seat, the e

Assignees

• Innio Jenbacher Gmbh & Co Og

Inventors

• Sakotnig Alexander
• Laiminger Stephan
• Knapczyk Michal

Classifications

• F02F2001/249

  with flame plate, e.g. insert in the cylinder head used as a thermal insulation between cylinder head and combustion chamber · CPC title

• F02F1/10

  for liquid cooling · CPC title

• F01L3/22

  Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats · CPC title

• F01L2303/00

  Manufacturing of components used in valve arrangements · CPC title

• F01L1/32

  characterised by the provision of means for rotating lift valves, e.g. to diminish wear · CPC title