-
公开(公告)号：US20210053105A1
公开(公告)日：2021-02-25
申请号：US16957519
申请日：2018-12-06
IPC分类号： B21K1/24
摘要： 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：US20210086292A1
公开(公告)日：2021-03-25
申请号：US16767276
申请日：2018-08-07
发明人： GUIDO BAYARD , STEFAN KELLERMAN , ANTONIUS WOLKING , LUTHFI ARIEF
摘要： A method for manufacturing an internally cooled valve (2), includes providing a valve body (4) having a valve stem (6) that ends in a valve head (8). The valve body (4) has a cavity (10) that is open toward the valve head (8) and with a valve base element (12) by friction welding the valve base element (12) to the valve head (8). The valve bottom element (12) is preferably a sintered component.
-
公开(公告)号：US20180274401A1
公开(公告)日：2018-09-27
申请号：US15762170
申请日：2016-07-27
发明人： DIRK SCHOBER , STEFAN KELLERMANN , GUIDO BAYARD
CPC分类号： F01L3/14 , F01L3/10 , F01L2101/00 , F01L2103/00 , F01L2103/01 , F16K49/007
摘要： An internally cooled inlet or outlet valve for internal combustion engines, has a valve disc, a valve stem and a cavity inside the valve stem and the valve disc. A coolant is arranged in the cavity, wherein the cavity is provided with at least one guide vane for the coolant.
-
公开(公告)号：US20210241954A1
公开(公告)日：2021-08-05
申请号：US17049111
申请日：2019-01-10
发明人： JOHANNES KNUST , OLAF JOSEF , GUIDO BAYARD
摘要： A method for producing a magnetic core for an electromagnetic actuator of an electromagnetic valve train includes punching a core blank from a soft magnetic metal sheet and reshaping the core blank. The core blank has a base segment with an opening and a plurality of wall segments that extend outwardly from an outer edge of the base segment. The plurality of wall segments is bent in a direction substantially perpendicular to the base segment during the reshaping.
-
公开(公告)号：US20200056516A1
公开(公告)日：2020-02-20
申请号：US16487593
申请日：2017-02-21
发明人： ANDRE MAREAU , STEFAN KELLERMANN , ANTONIUS WOLKING , OLIVER SCHULZE , ANDREAS HEINEK , GUIDO BAYARD , DANIEL EISENRING
摘要： A poppet valve (2) with a valve body (4) has a cavity (6), a coolant inlet port (8). A coolant outlet port (10). The coolant inlet port (8) and the coolant outlet port (10) are arranged on a valve stem (12) of the poppet valve (2). The cavity (6) extends into the valve stem (12) of the poppet valve (2) and into a valve head (14) of the poppet valve (2), wherein there is provided a coolant conducting element (16) within the cavity (6) and extending into the cavity (6) from the valve head (14) to the valve stem (12), where the coolant conducting element (16) in each case has a cross-section. The coolant conducting element (16) includes a pipe section (18) and a funnel section (20), and the coolant conducting element (16) extends concentrically to the poppet valve (2) in the cavity (6) of the poppet valve (2).
-
公开(公告)号：US20200318504A1
公开(公告)日：2020-10-08
申请号：US16310609
申请日：2017-03-14
发明人： CARSTEN STRUBBE , GUIDO BAYARD
摘要： The present invention for coating a valve head (6) of an inlet and/or outlet valve (4) comprises a preparation of a surface, which is to be coated, of the valve (4) for a coating, and a coating of the prepared surface with a ceramic high-temperature coating (22).
-
7.发明申请公开(公告)号：US20200149442A1
公开(公告)日：2020-05-14
申请号：US16625247
申请日：2018-02-28
摘要： 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：US20180347414A1
公开(公告)日：2018-12-06
申请号：US15761643
申请日：2016-07-11
发明人： STEFAN KELLERMANN , GUIDO BAYARD
CPC分类号： F01L3/14 , F01L2101/00 , F01L2103/00 , F01L2810/01
摘要： The invention relates to a cooled inlet or outlet valve (4) for internal combustion engines, comprising a valve disc (6), a valve stem (8), and a hollow space (10) inside the valve stem (8) and the valve disc (6). A coolant (12) is arranged in the hollow space (10). The valve is designed comprising at least two parts and has on a valve disc surface (22) an opening (18) which is closed by a cover (20), wherein the cover (20) is additionally provided with at least one relief groove (34) which relieves a joint (32) between the opening (18) in the valve disc surface (22) and the cover (20).
-
公开(公告)号：US20220152690A1
公开(公告)日：2022-05-19
申请号：US17437782
申请日：2020-01-30
摘要： The invention relates to a method for producing a valve body for a hollow valve. Said method comprises the following steps: providing a workpiece, blank or semi-finished product and a forming punch, introducing a protective layer between the workpiece and the forming punch (22) and press forming the workpiece to produce a preform. The invention also relates to a hollow valve produced by means of this method.
-
公开(公告)号：US20210370376A1
公开(公告)日：2021-12-02
申请号：US17056482
申请日：2019-01-31
摘要： 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.
-
-
-
-
-
-
-
-
-
搜索结果
15 条记录 (耗时 0.012 秒)
