Valve seat ring of a gas exchange valve and gas exchange valve

Patent metadata

Field	Value
Publication number	US-11193402-B2
Application number	US-202017097938-A
Country	US
Kind code	B2
Filing date	Nov 13, 2020
Priority date	Nov 15, 2019
Publication date	Dec 7, 2021
Grant date	Dec 7, 2021

Abstract

A valve seat ring for a gas exchange valve of a cylinder of an internal combustion engine includes: a one-part or multi-part main body defining a through-flow opening; and a valve seat region arranged on a portion of the main body in the region of the through-flow opening, a surface of the valve seat region forming a valve seat for a valve body of the gas exchange valve. At least into the main body at least one recess is introduced, which is at least partly filled with a solder material.

First claim

What is claimed is:

1. A valve seat ring ( 10 , 20 , 30 , 40 , 50 ) fora gas exchange valve of a cylinder of an internal combustion engine, comprising:
a one-part or multi-part main body ( 11 , 21 , 31 , 41 , 51 ) defining a through-flow opening ( 12 , 22 , 32 , 42 , 52 ); and
a valve seat region ( 13 , 23 , 33 , 43 , 53 ) arranged on a portion of the main body ( 11 , 21 , 31 , 41 , 51 ) in the region of the through-flow opening ( 12 , 22 , 32 , 42 , 52 ), wherein a surface of the valve seat region ( 13 , 23 , 33 , 43 , 53 ) forms a valve seat ( 14 , 24 , 34 , 44 , 54 ) for a valve body of the gas exchange valve,
wherein at least into the main body ( 11 , 21 , 31 , 41 , 51 ) at least one recess ( 15 , 25 , 35 , 45 , 55 ) is introduced, which is at least partly filled with a solder material ( 16 , 26 , 36 , 46 , 56 ), and
wherein the at least one recess ( 15 , 25 ) filled with the solder material ( 16 , 26 ) is exclusively introduced into the main body ( 11 , 21 ) such that the recess ( 15 , 25 ) extends in the axial direction of the through-flow opening ( 12 , 22 ) from the main body ( 11 , 21 ) in the direction of the valve seat region ( 13 , 23 ) and ends at a distance before the valve seat region ( 13 , 23 ), without extending to the valve seat region ( 13 , 23 ).

2. The valve seat ring according to claim 1 , wherein the solder material ( 16 , 26 ) conducts heat.

3. A valve seat ring ( 10 , 20 , 30 , 40 , 50 ) for a gas exchange valve of a cylinder of an internal combustion engine, comprising:
a one-part or multi-part main body ( 11 , 21 , 31 , 41 , 51 ) defining a through-flow opening ( 12 , 22 , 32 , 42 , 52 ); and
a valve seat region ( 13 , 23 , 33 , 43 , 53 ) arranged on a portion of the main body ( 11 , 21 , 31 , 41 , 51 ) in the region of the through-flow opening ( 12 , 22 , 32 , 42 , 52 ), wherein a surface of the valve seat region ( 13 , 23 , 33 , 43 , 53 ) forms a valve seat ( 14 , 24 , 34 , 44 , 54 ) for a valve body of the gas exchange valve,
wherein at least into the main body ( 11 , 21 , 31 , 41 , 51 ) at least one recess ( 15 , 25 , 35 , 45 , 55 ) is introduced, which is at least partly filled with a solder material ( 16 , 26 , 36 , 46 , 56 ),
wherein the at least one recess ( 35 , 45 , 55 ) filled with the solder material ( 36 , 46 , 56 ) is introduced into the main body ( 31 , 41 , 51 ) and into the valve seat region ( 33 , 43 , 53 ), and
wherein the recess ( 45 , 55 ) extends in the axial direction of the through-flow opening ( 42 , 52 ) from the main body ( 41 , 52 ) in the direction of the valve seat region ( 43 , 53 ) into the valve seat region and penetrates the valve seat region ( 43 , 53 ) and the valve seat ( 44 , 54 ).

4. The valve seat ring according to claim 3 , wherein the at least one recess ( 35 ) extends in the axial direction of the through-flow opening ( 32 ) from the valve seat region ( 33 ) in the direction of the main body ( 31 ) into the main body, without penetrating the main body ( 31 ).

5. The valve seat ring according to claim 4 , wherein the solder material ( 36 ) conducts heat and/or provides lubrication.

6. The valve seat ring according to claim 5 , wherein the solder material ( 46 , 56 ) conducts heat and/or provides lubrication.

7. The valve seat ring according to claim 6 , further comprising an insert body ( 57 ) arranged in the respective recess ( 55 ), the insert body ( 57 ) being fixed in the recess ( 55 ) by the solder material ( 56 ), the insert body ( 57 ) providing the lubrication and/or heat induction and/or a hard facing.

8. A valve seat ring ( 60 ) for a gas exchange valve of a cylinder of an internal combustion engine, comprising:
a one-part or multi-part main body ( 61 ) defining a through-flow opening ( 62 ); and
a valve seat region ( 63 ) formed on a portion of the main body ( 61 ) in the region of the through-flow opening ( 62 ), wherein a surface of the valve seat region ( 63 ) forms a valve seat ( 64 ) for a valve body of the gas exchange valve,
wherein the valve seat region ( 63 ) comprises layers ( 65 , 66 ) of different metallic material, and form concentric rings on the valve seat ( 64 ), and
wherein the valve seat region ( 63 ) comprises multiple layers ( 65 ) of a highly ductile metallic material and multiple layers ( 66 ) of a solder material, the solder material conducting heat and/or providing lubrication.

9. A gas exchange valve of an internal combustion engine having a valve body and having the valve seat ring ( 10 , 20 , 30 , 40 , 50 , 60 ) according to claim 1 as the valve body.

Assignees

• Man Energy Solutions Se

Inventors

• Ritter Bernhard
• Litzel Georg

Classifications

• F01L2301/00

  Using particular materials · CPC title

• F01L3/12

  Cooling of valves · CPC title

• F01L3/18

  Liquid cooling of valve · CPC title

• F01L3/22 Primary

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

• F01L2810/02

  Lubrication · CPC title