公开(公告)号：US20240240577A1

公开(公告)日：2024-07-18

申请号：US18412990

申请日：2024-01-15

申请人： MAHLE International GmbH

发明人： Peter Kroos ,  Alexander Mueller ,  Alexander Puck ,  Tobias Wege

IPC分类号： F01L3/14 ,  F01L3/02 ,  F01L3/20

CPC分类号： F01L3/14 ,  F01L3/02 ,  F01L3/20

摘要： A valve for an internal combustion engine and a method for producing such a valve is disclosed. The valve includes a valve bottom and a valve stem projecting from the valve bottom. An interior of the valve delimits a hollow space, in which sodium for cooling is received. In the hollow space, a non-evaporable getter is arranged.

公开(公告)号：US20180274401A1

公开(公告)日：2018-09-27

申请号：US15762170

申请日：2016-07-27

申请人： FEDERAL-MOGUL VALVETRAIN GMBH

发明人： DIRK SCHOBER ,  STEFAN KELLERMANN ,  GUIDO BAYARD

IPC分类号： F01L3/14 ,  F16K49/00

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：US09896978B2

公开(公告)日：2018-02-20

申请号：US14551036

申请日：2014-11-23

申请人： Hyundai Motor Company

发明人： Seungwoo Lee ,  Jiho Kim ,  Hongkil Baek ,  Jiyoun Seo ,  Dongkyu Lee ,  Bokyung Kim ,  Inwoong Lyo ,  Minkyu Park

IPC分类号： F01L3/02 ,  F01L3/04 ,  F01L3/20 ,  F01L3/22 ,  F01L3/14

CPC分类号： F01L3/04 ,  F01L3/02 ,  F01L3/12 ,  F01L3/14 ,  F01L3/20 ,  F01L3/22 ,  F01L2101/02 ,  F01L2103/00 ,  F01L2820/01

摘要： An intake valve for an engine supplies an intake gas to a combustion chamber of the engine, and an adiabatic coating layer including a polyamideimide resin and an aerogel dispersed in the polyamideimide resin and having thermal conductivity of 0.60 W/m or less may be formed on a surface portion that comes into contact with a flame during operation of the engine.

公开(公告)号：US09683467B2

公开(公告)日：2017-06-20

申请号：US14565827

申请日：2014-12-10

申请人： General Electric Company

发明人： Julian Richard Knudsen

IPC分类号： F01L3/14 ,  F01L3/02 ,  F16K1/36 ,  F16K27/02 ,  F16K49/00

CPC分类号： F01L3/14 ,  F01L3/02 ,  F01L2103/00 ,  F16K1/36 ,  F16K27/02 ,  F16K49/00 ,  Y10T137/0491 ,  Y10T137/598 ,  Y10T137/6065

摘要： A system includes a reciprocating engine, the reciprocating engine includes a poppet valve having a first valve end and a second valve end. The poppet valve includes a valve head having the first valve end. The valve head may open and close a fluid passageway within the reciprocating engine. The poppet valve also includes a stem extending from the valve head and having a first length. The stem has the second valve end and the second valve end is substantially opposite the first valve end. The poppet valve also includes a cavity aligned with a centerline axis of the poppet valve. The cavity includes a first region disposed within the valve head and a second region disposed within the stem, and the second region has a second length that is shorter than the first length. The poppet valve further includes a metal alloy disposed within the cavity. The metal alloy is in a liquid-phase during operation of the reciprocating engine and may transfer heat from the valve head to the stem.

公开(公告)号：US09447711B2

公开(公告)日：2016-09-20

申请号：US13955635

申请日：2013-07-31

申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

发明人： Hyoji Yoshimura

IPC分类号： B23P15/00 ,  B21D53/84 ,  B21K1/22 ,  B23K11/093 ,  F01L3/16 ,  F01L3/14

CPC分类号： F01L3/16 ,  B21D53/84 ,  B21K1/22 ,  B23K11/0935 ,  B23P15/002 ,  F01L3/14 ,  F01L2103/00 ,  Y10T29/49307 ,  Y10T29/49309 ,  Y10T29/49405

摘要： Forming of a valve head portion (1) of a hollow engine valve (V) comprising a material particularly satisfactory in heat resistance is performed by cold forging. The material with excellent heat resistance is worked to form a valve head portion semifinished product (11) having a hollow hole (S11) whose inner diameter (φ11) is equal to the maximum inner diameter (φ11) of a hollow hole (S1) of a finished product of the valve head portion (1), and having a diameter-increased section (111) whose maximum outer diameter (φ12) is equal to the maximum outer diameter (φ12) of a diameter-increased section (1a) of the finished product. Parts of the valve head portion semifinished product other than a central part to a lower part of the diameter-increased section (111) are necked down by cold forging performed a plurality of times to obtain the finished product of the valve head portion (1).

摘要翻译： 通过冷锻进行包括特别令人满意的耐热性的材料的中空发动机阀（V）的阀头部（1）的形成。 加工具有优异耐热性的材料，形成具有中空孔（S11）的阀头部分半成品（11），其内径（φ11）等于中空孔（S1）的最大内径（φ11） 阀头部分（1）的成品，具有最大外径（φ12）等于直径增大部分（1a）的最大外径（φ12）的直径增大部分（111） 完成的产品。 除了直径增加部分（111）的中心部分到下部的阀头部分半成品的部分通过冷锻多次进行颈缩，以获得阀头部分（1）的成品， 。

公开(公告)号：US20160053641A1

公开(公告)日：2016-02-25

申请号：US14783492

申请日：2013-04-11

申请人： NITTAN VALVE CO., LTD.

发明人： Osamu TSUNEISHI ,  Atsuyuki ICHIMIYA

IPC分类号： F01L3/14

CPC分类号： F01L3/14 ,  F01L3/20

摘要： A hollow poppet valve (10) having an improved heat transfer capability is provided. The valve has an internal cavity (S), extending from within a valve head (14) into a stem (12) of the valve, is loaded with a coolant (19) together with an inert gas. The coolant in the valve head (14) is stirred by swirl flows of the coolant generated during reciprocal motions of the valve. A multiplicity of swirl-forming protrusions are formed on at least on one of the bottom and the ceiling of the valve head cavity (S1) in such a way that swirl flows (F20, F30) of coolant are generated by the protrusions in the valve head cavity (S1) during reciprocal motions of the valve to thereby stir the coolant in the circumferential direction of the cavity (S1).

摘要翻译： 提供具有改善的传热能力的中空提升阀（10）。 阀具有从阀头（14）内延伸到阀的杆（12）内的内腔（S），与惰性气体一起装载有冷却剂（19）。 阀头（14）中的冷却剂由在阀的往复运动期间产生的冷却剂的涡流搅动。 在阀头腔（S1）的底部和顶部的至少一个上形成多个涡流形成突起，使得冷却剂的涡流（F20，F30）由阀中的突起产生 在阀的往复运动期间，头腔（S1）在空腔的周向上搅拌冷却剂（S1）。

公开(公告)号：US20150354727A1

公开(公告)日：2015-12-10

申请号：US14759850

申请日：2013-03-14

申请人： NITTAN VALVE CO., LTD.

发明人： Osamu TSUNEISHI ,  Naoya ISHIHARA

IPC分类号： F16K49/00 ,  F16K1/38

CPC分类号： F16K49/007 ,  B21K1/22 ,  B23P15/002 ,  F01L3/08 ,  F01L3/10 ,  F01L3/14 ,  F01L2101/00 ,  F01L2103/00 ,  F16K1/38 ,  Y10T137/6579

摘要： A hollow poppet valve (10) has an internal cavity (S) which comprises a diametrically large valve head cavity (S1) formed in a valve head (14) and a diametrically small stem cavity (S2) formed in a stem (12) in communication with the valve head cavity (S1). The stem cavity has a diametrically larger first portion (S21) near the end of the stem and a diametrically smaller second portion (S22) near the valve head. A step (17) is formed at the boundary of the first and the second portion of the stem cavity (S2). The internal cavity is loaded with a coolant to a level above the step, together with an inert gas. In response to a reciprocal motion of the valve, turbulent flows of coolant (F9) are created in the neighborhood of the step (17), facilitating active stirring of the coolant (19) in the cavity (S).

摘要翻译： 空心提升阀（10）具有内腔（S），其包括形成在阀头（14）中的直径较大的阀头腔（S1）和形成在阀杆（12）中的直径较小的阀杆腔（S2） 与阀头腔连通（S1）。 杆腔在杆的端部附近具有径向较大的第一部分（S21），在阀头附近具有径向较小的第二部分（S22）。 在杆腔（S2）的第一和第二部分的边界处形成台阶（17）。 与惰性气体一起，内部空腔中装有一个高于该台阶的冷却剂。 响应于阀的往复运动，在步骤（17）附近产生冷却剂（F9）的湍流，有助于腔（S）中的冷却剂（19）的主动搅拌。

公开(公告)号：US08881391B2

公开(公告)日：2014-11-11

申请号：US13504877

申请日：2010-09-24

申请人： Hirokazu Morii ,  Hyoji Yoshimura

发明人： Hirokazu Morii ,  Hyoji Yoshimura

IPC分类号： B21K1/20 ,  B21K1/22 ,  F01L3/14 ,  F01L3/00 ,  B21C23/18 ,  B23P15/00

CPC分类号： F01L3/00 ,  B21C23/183 ,  B21K1/22 ,  B23P15/002 ,  F01L3/14 ,  Y10T29/49298 ,  Y10T29/49307 ,  Y10T29/49309 ,  Y10T29/49405

摘要： A method for producing a hollow engine valve is disclosed which involves gradually reducing the size of the outer diameter and inner diameter of a hollow shaft of a semi-finished product sequentially inserting the hollow shaft into a plurality of molding holes having different hole shapes so as to gradually extend the length of the hollow shaft, and forming the hollow shaft into a predetermined shape by sequentially performing a drawing process. The semi-finished product is subjected to heat treatment such that the hardness thereof is equal to or less than a predetermined hardness, and the maximum thickness between the hollow shaft and an umbrella portion connected to the bottom edge of the hollow shaft is formed to be thicker than the thickness of the hollow shaft by means of a molding hole of a die which is adjusted to have a specific length and maximum inner diameter.

摘要翻译： 公开了一种生产中空发动机阀的方法，其中逐渐减小半成品的空心轴的外径和内径的尺寸，将中空轴顺序地插入具有不同孔形状的多个模制孔中， 逐渐延长空心轴的长度，并通过依次进行拉拔加工将中空轴形成预定的形状。 对半成品进行热处理，使其硬度为规定的硬度以下，中空轴与连接到中空轴的底部边缘的伞部之间的最大厚度形成为 通过模具的模制孔比空心轴的厚度厚，其被调节为具有特定长度和最大内径。

公开(公告)号：US20140033533A1

公开(公告)日：2014-02-06

申请号：US14001994

申请日：2012-02-17

申请人： Hirokazu Morii ,  Kenichiro Hirao ,  Hyoji Yoshimura

发明人： Hirokazu Morii ,  Kenichiro Hirao ,  Hyoji Yoshimura

IPC分类号： B21K1/24

CPC分类号： B21K1/24 ,  B21K1/22 ,  B23P15/002 ,  F01L3/14 ,  F01L3/20 ,  F01L2103/00 ,  Y10T29/49405

摘要： A method for manufacturing a hollow engine valve includes a step for performing rotational plastic working on a follow engine valve body semifinished product which is configured from a shaft part and a valve umbrella part forming portion connected to the shaft part. A columnar hole part is formed from the shaft part to an enlarged diameter section of the valve umbrella part forming portion to thereby reduce the diameter of the shaft part. A necking step follows the rotational plastic working step, necking the hollow engine valve body semifinished product to thereby reduce the outer diameter and the inner diameter of the shaft part. A sealing step seals the leading end of the shaft part to obtain the hollow engine valve.

摘要翻译： 一种空心发动机阀的制造方法，其特征在于，包括：从由与所述轴部连接的轴部和阀伞部形成部构成的跟随发动机阀体半成品进行旋转塑性加工的工序。 柱形孔部由轴部向阀伞部形成部的扩径部形成，从而减小轴部的直径。 在旋转塑料加工步骤之后的缩颈步骤，使空心发动机阀体半成品颈缩，从而减小轴部分的外径和内径。 密封步骤密封轴部分的前端以获得中空的发动机阀。

公开(公告)号：US20140033532A1

公开(公告)日：2014-02-06

申请号：US13955815

申请日：2013-07-31

申请人： YOSHIMURA COMPANY ,  MITSUBISHI HEAVY INDUSTRIES, LTD.

发明人： Hyoji YOSHIMURA

IPC分类号： B23P15/00

CPC分类号： F01L3/16 ,  B21D53/84 ,  B21K1/22 ,  B23K11/0935 ,  B23P15/002 ,  F01L3/14 ,  F01L2103/00 ,  Y10T29/49307 ,  Y10T29/49309 ,  Y10T29/49405

摘要： Forming of a valve head portion (1) of a hollow engine valve (V) comprising a material particularly satisfactory in heat resistance is performed by cold forging. On this occasion, the material with excellent heat resistance is worked to form a valve head portion semifinished product (11) having a hollow hole (S11) whose inner diameter (φ11) is equal to the maximum inner diameter (φ11) of a hollow hole (S1) of a finished product of the valve head portion (1), and having a diameter-increased section (111) whose maximum outer diameter (φ12) is equal to the maximum outer diameter (φ12) of a diameter-increased section (1a) of the finished product. Parts of the valve head portion semifinished product other than a central part to a lower part of the diameter-increased section (111) are necked down by cold forging performed a plurality of times to obtain the finished product of the valve head portion (1). This method of obtaining the finished product is provided by the present invention.

摘要翻译： 通过冷锻进行包括特别令人满意的耐热性的材料的中空发动机阀（V）的阀头部（1）的形成。 在这种情况下，对耐热性优异的材料进行加工，形成具有中空孔（S11）的阀头部半成品（11），其内径（phi11）等于中空孔的最大内径（phi11） （1）的最终外径（phi12）直径增大部分（111）的直径增大部分（111） 1a）成品。 除了直径增加部分（111）的中心部分到下部的阀头部分半成品的部分通过冷锻多次进行颈缩，以获得阀头部分（1）的成品， 。 这种获得成品的方法由本发明提供。