公开(公告)号：US20210053105A1

公开(公告)日：2021-02-25

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

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：US20240141810A1

公开(公告)日：2024-05-02

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：US20220403761A1

公开(公告)日：2022-12-22

申请号：US17772214

申请日：2020-07-22

Applicant: FEDERAL-MOGUL VALVETRAIN GMBH

Inventor： THORSTEN MATTHIAS ,  DIRK SCHOBER

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

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：US20200347756A1

公开(公告)日：2020-11-05

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

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).

公开(公告)号：US20200149442A1

公开(公告)日：2020-05-14

申请号：US16625247

申请日：2018-02-28

Applicant: FEDERAL-MOGUL VALVETRAIN GMBH

Inventor： THORSTEN MATTHIAS ,  ANTONIUS WOLKING ,  GUIDO BAYARD ,  ARIEF LUTHFI

IPC: F01L3/14 ,  B21K1/22

Abstract: The invention relates to a process for manufacturing an internally cooled valve, said process involving providing an externally at least partly cylindrical semifinished product (2), creating or increasing the depth of an at least partly cylindrical cavity in the semifinished product (2) in a hot-working procedure using a male die such that a valve blank is formed; during the hot-working procedure, a recess on an end face of the male die forms a structure on the bottom of the cavity.

公开(公告)号：US20240159173A1

公开(公告)日：2024-05-16

申请号：US18551102

申请日：2022-02-22

Applicant: FEDERAL-MOGUL VALVETRAIN GMBH

Inventor： THORSTEN MATTHIAS ,  STEFAN KELLERMANN

IPC: F01L3/04

CPC classification number: F01L3/04 ,  F01L2303/01

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：US20220168798A1

公开(公告)日：2022-06-02

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

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：US20210370376A1

公开(公告)日：2021-12-02

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

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：US20200173318A1

公开(公告)日：2020-06-04

申请号：US16624996

申请日：2018-03-01

Applicant: FEDERAL-MOGUL VALVETRAIN GMBH

Inventor： THORSTEN MATTHIAS ,  ANTONIUS WOLKING ,  ANDREAS HEINEK ,  GUIDO BAYARD

IPC: F01L3/14 ,  F16K49/00 ,  B23P15/00

Abstract: A hollow valve having optimized interior stem geometry, whose valve stem has surface-enlarging structuring on an inner surface is provided. Also provided is a method for manufacturing a valve body of such a hollow valve, wherein the method comprises: providing a bowl-shaped semi-finished product having an annular wall that surrounds a cavity, and having a base section, followed by lengthening the wall with an inserted, structured mandrel, and lastly, reducing an outer diameter of the annular wall without a mandrel to obtain a predetermined valve stem outer diameter of a valve to be manufactured.

公开(公告)号：US20200156144A1

公开(公告)日：2020-05-21

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.