公开(公告)号：US11850655B2

公开(公告)日：2023-12-26

申请号：US16957519

申请日：2018-12-06

Applicant: FEDERAL-MOGUL VALVETRAIN GMBH

Inventor： Thorsten Matthias ,  Antonius Wolking ,  Guido Bayard

IPC: B21K1/24

CPC classification number: B21K1/24

Abstract: A matrix for shaping a valve preform has a circular through opening and a reduced conical section. The reduced conical section tapers from an outer diameter to a reduced cone inner diameter, the outer diameter being greater than or equal to the initial outer diameter of the valve preform, and the matrix inner diameter being smaller than the initial outer diameter.

公开(公告)号：US12049836B2

公开(公告)日：2024-07-30

申请号：US18550620

申请日：2021-11-16

Applicant: FEDERAL-MOGUL VALVETRAIN GMBH

Inventor： Dirk Schober ,  Frank Zwein ,  Florian Ringeling ,  Thorsten Matthias ,  Stefan Kellermann

IPC: F01L1/32 ,  F01L3/08 ,  F01L3/10

CPC classification number: F01L1/32 ,  F01L3/08 ,  F01L3/10

Abstract: A valve rotating device with valve stem seal includes a valve rotating device, with a cylinder head rest and a spring rest intended to bear against a valve spring during operation. The valve rotating device is designed to rotate the spring rest relative to the cylinder head rest during operation. A valve stem seal is attached to the cylinder head rest of the valve rotating device. The valve stem seal being designed to bear against a valve stem and to seal same during rotational and axial movements.

公开(公告)号：US11951561B2

公开(公告)日：2024-04-09

申请号：US17274586

申请日：2019-05-21

Applicant: FEDERAL-MOGUL VALVETRAIN GMBH

Inventor： Thorsten Matthias ,  Antonius Wolking

IPC: B23K20/12 ,  B23K13/01 ,  B23K103/04 ,  F01L3/20

CPC classification number: B23K20/129 ,  B23K13/01 ,  B23K2103/04 ,  F01L3/20

Abstract: A method for producing a cavity valve is provided. The method includes providing a valve body which has a cavity in the interior. The valve body has a circular opening having an opening edge surface on a bottom side. A circular valve cover with a cover edge surface is provided. Inductive heating of at least one of the opening edge surface or the cover edge surface takes place and then welding the valve body to the valve cover by friction welding of the opening edge surface to the cover edge surface.

公开(公告)号：US11260448B2

公开(公告)日：2022-03-01

申请号：US16625292

申请日：2018-03-06

Applicant: FEDERAL-MOGUL VALVETRAIN GMBH

Inventor： Thorsten Matthias ,  Antonius Wolking ,  Guido Bayard ,  Andreas Heinek

IPC: B21K1/22 ,  B21C23/20

Abstract: Disclosed is a method for the production of a valve body of a hollow chamber valve, said method comprising: providing a bowl-shaped semi-finished product having an annular wall, which surrounds a hollow chamber, and a bottom portion, followed by a lengthening of the wall and a final reducing of an outer diameter of the annular wall in order to obtain a predetermined valve shaft outside diameter of a valve that is to be produced. Further disclosed is a hollow chamber valve produced by means of said method.

公开(公告)号：US12209516B2

公开(公告)日：2025-01-28

申请号：US18551102

申请日：2022-02-22

Applicant: FEDERAL-MOGUL VALVETRAIN GMBH

Inventor： Thorsten Matthias ,  Stefan Kellermann

IPC: F01L3/04

Abstract: A method for the production of a poppet valve which is armoured in at least the region of a valve seat, comprising providing a substantially cylindrical or cup-shaped semi-finished product produced from a valve steel, which is coated with an armouring material, whereupon the coated semi-finished product is formed into an armoured poppet valve.

公开(公告)号：US11898473B2

公开(公告)日：2024-02-13

申请号：US17772214

申请日：2020-07-22

Applicant: FEDERAL-MOGUL VALVETRAIN GMBH

Inventor： Thorsten Matthias ,  Dirk Schober

IPC: B21J5/12 ,  B21K1/22 ,  B23P15/00 ,  F01L3/14

CPC classification number: F01L3/14 ,  B21J5/12 ,  B21K1/22 ,  B23P15/002 ,  F01L2303/01

Abstract: A method for shaping a hollow valve preform of a pull rod (20) includes a structuring bulb (22) which is inserted into the cavity (56) of a shaft portion (44) of a valve preform. The structuring bulb (22) has an outer diameter, and has an outer structuring, whereafter the hollow shaft portion (44) is shaped, wherein at least a portion of an inner diameter of the cavity (56) is reduced below an outer diameter of the structuring bulb (22). The structuring bulb (22) is then pulled out through the shaped shaft portion (44), wherein the outer structuring is at least partially pressed into the surface of the cavity (56).

公开(公告)号：US11813658B2

公开(公告)日：2023-11-14

申请号：US17437762

申请日：2020-02-10

Applicant: FEDERAL-MOGUL VALVETRAIN GMBH

Inventor： Thorsten Matthias ,  Antonius Wolking ,  Johannes Knust

IPC: B21D53/84 ,  B21K1/22 ,  F01L3/20 ,  B21D51/10 ,  B23P15/00

CPC classification number: B21D53/84 ,  B21D51/10 ,  B21K1/22 ,  B23P15/002 ,  F01L3/20 ,  F01L2303/00 ,  F01L2303/01

Abstract: A method for producing a valve body of a hollow valve includes providing a workpiece blank or semi-finished product, spin extruding the workpiece to produce a preform having a cup with a hollow shape formed by the cup wall. A hollow valve produced by this method is also provided.

公开(公告)号：US11154957B2

公开(公告)日：2021-10-26

申请号：US16485923

申请日：2017-10-26

Applicant: FEDERAL-MOGUL VALVETRAIN GMBH

Inventor： Thorsten Matthias ,  Antonius Wolking ,  Guido Bayard

IPC: B23P15/00

Abstract: The invention relates to a method for producing poppet valves, the method including: cross-wedge rolling a preform (2), which has at least one disk portion (4) and a shaft portion, to produce a valve blank (10), wherein a diameter of the shaft portion (6) is reduced substantially to a shaft diameter of a shaft (16), and additionally a length of the shaft portion (6) is increased substantially to a length of the shaft (16) by means of a rolling-out process.

公开(公告)号：US11654471B2

公开(公告)日：2023-05-23

申请号：US17056482

申请日：2019-01-31

Applicant: FEDERAL-MOGUL VALVETRAIN GMBH

Inventor： Thorsten Matthias ,  Antonius Wolking ,  Guido Bayard

IPC: B21D22/16 ,  B21K1/22 ,  F01L3/14 ,  F01L3/20 ,  F16K1/36 ,  F16K49/00

CPC classification number: B21D22/16 ,  B21K1/22 ,  F01L3/14 ,  F01L3/20 ,  F01L2303/00 ,  F16K1/36 ,  F16K49/007

Abstract: A production method for a valve body of a hollow valve includes providing a preform with a valve head and a tubular wall which surrounds a cylindrical cavity. The tubular wall is flow formed above a flow forming mandrel which is inserted into the cavity in order to increase a length of the tubular wall. A hollow valve produced by flow forming is also disclosed.

公开(公告)号：US11333046B2

公开(公告)日：2022-05-17

申请号：US16760743

申请日：2018-08-06

Applicant: FEDERAL-MOGUL VALVETRAIN GMBH

Inventor： Thorsten Matthias ,  Antonius Wolking ,  Fernando Arias ,  Florian Ringeling

IPC: F01L3/18 ,  F01L3/02 ,  B21K1/22

Abstract: An internally cooled valve (2) includes a valve body having a valve head (4) and a valve stem (6). The valve body has at least one cavity (8) in which coolant (10) is situated. The coolant is a nanofluid (12) in which nanoparticles (14) are dispersed in a dispersion medium (16).