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：US11828207B2

公开(公告)日：2023-11-28

申请号：US16486620

申请日：2018-01-25

Applicant: Mahle International GmbH

Inventor： Heiko Heckendorn ,  Christoph Luven ,  Alexander Mueller ,  Alexander Puck

IPC: F01L3/14 ,  F01L3/04 ,  F01L3/08 ,  F01L3/02 ,  F01L3/22 ,  F01L3/00 ,  F01L3/20

CPC classification number: F01L3/14 ,  F01L3/02 ,  F01L3/04 ,  F01L3/08 ,  F01L3/20 ,  F01L3/22 ,  F01L2003/25 ,  F01L2303/00

Abstract: An internal combustion engine may include at least one cylinder and at least one hollow-heat valve. The at least one hollow-head valve may include a valve shaft and a valve head, and may be guided in a valve shaft guide. The engine may also include at least one valve seat ring on which the valve head sealingly lies when the at least one hollow-head valve is closed. The engine may additionally include a valve shaft seal with at least two seal lips and oil disposed between the valve shaft and the valve shaft guide. The at least one valve seat ring may be composed of a sintered metal including infiltrated copper. The valve shaft may include one of a chromium-containing coating and a boron carbide-containing coating.

公开(公告)号：US11767774B2

公开(公告)日：2023-09-26

申请号：US16759745

申请日：2018-10-17

Applicant: Eaton Intelligent Power Limited

Inventor： Alberto Aimasso ,  Luigi Lia ,  Francesca Mancuso

IPC: F01L3/04 ,  C23C4/01 ,  C23C4/11 ,  C23C4/129 ,  C23C4/134 ,  B21K1/22 ,  B23P15/00 ,  C23C4/02 ,  F16K1/38

CPC classification number: F01L3/04 ,  B21K1/22 ,  B23P15/002 ,  C23C4/01 ,  C23C4/02 ,  C23C4/11 ,  C23C4/129 ,  C23C4/134 ,  F16K1/385 ,  F01L2303/00

Abstract: A poppet valve includes: a valve body comprising a valve stem body, a valve head body with a valve combustion face, and a valve fillet body interconnecting the valve stem body and the valve head body. The valve fillet body surface has an increased thermal resistance compared to the valve combustion face.

公开(公告)号：US20180334991A1

公开(公告)日：2018-11-22

申请号：US16048838

申请日：2018-07-30

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： CHRISTOPHER DONALD WICKS

IPC: F02F1/42 ,  F02F7/00 ,  F02F1/36 ,  F02F1/18 ,  F01L3/04 ,  F01L1/344 ,  B29C45/14 ,  B29C45/00 ,  B29C43/18 ,  B29C43/00

CPC classification number: F02F1/4285 ,  B29C43/003 ,  B29C43/184 ,  B29C45/0001 ,  B29C45/0005 ,  B29C45/14 ,  B29C45/14336 ,  B29C45/14377 ,  B29K2101/10 ,  B29K2503/06 ,  B29K2705/00 ,  B29L2031/748 ,  F01L1/3442 ,  F01L1/462 ,  F01L3/04 ,  F01L3/08 ,  F01L2001/34423 ,  F01L2101/00 ,  F01L2103/00 ,  F01L2820/01 ,  F02F1/18 ,  F02F1/36 ,  F02F7/0085 ,  F02F2001/248 ,  F02F2001/249 ,  F05C2225/00 ,  F05C2251/042

Abstract: An engine cylinder head includes an internal metal structure forming an upper portion of a combustion chamber. The internal metal structure includes a semi-compliant coating configured to absorb thermal expansion of the internal metal structure. The engine cylinder head also includes a polymer composite forming an external structure at least partially surrounding the internal metal structure.

公开(公告)号：US20180223902A1

公开(公告)日：2018-08-09

申请号：US15749599

申请日：2016-07-21

Applicant: NISSAN MOTOR CO., LTD

Inventor： Yoshinori IZAWA

IPC: F16C33/12 ,  F01L3/04 ,  C23C24/04 ,  C23C28/00

CPC classification number: F16C33/128 ,  C22C9/00 ,  C22C9/02 ,  C22C9/06 ,  C23C4/067 ,  C23C24/04 ,  C23C28/021 ,  C23C28/027 ,  C23C28/028 ,  C23C28/345 ,  C23C30/00 ,  F01L3/02 ,  F01L3/04 ,  F16C33/12

Abstract: The sliding member includes a base and a coating layer formed on the base, in which the coating layer includes a particle aggregate containing first particles of a precipitation-hardening copper alloy.The method for manufacturing the sliding member includes the step of spraying a first powder of the precipitation-hardening copper alloy or a mixed powder containing the first powder and a second powder harder than the first powder onto the base in an un melted state, so as to form the coating layer on the base.

公开(公告)号：US20170291268A1

公开(公告)日：2017-10-12

申请号：US15093796

申请日：2016-04-08

Applicant: Dana Automotive Systems Group, LLC

Inventor： Troy D. McArthy

IPC: B23P15/00 ,  F01L3/04 ,  F01L3/08 ,  F16K41/04 ,  B29C33/30

CPC classification number: B23P15/002 ,  B29C33/305 ,  B29K2021/00 ,  B29K2905/00 ,  B29L2031/26 ,  B29L2031/7506 ,  F01L3/04 ,  F01L3/08 ,  F01L2103/01 ,  F16J15/3252 ,  F16J15/3276 ,  F16J15/328 ,  F16K41/04

Abstract: A method for making a valve stem seal, comprising the steps of providing a metal retainer having a top portion and a body portion. The body portion having a first section and a second section. In a first state, the first section of the body portion is cylindrical and the second section of the body portion is cone shaped. Providing a hollow mold. Inserting the metal retainer into the outer mold piece, inserting the inner mold piece into the metal retainer, and then securing the inner and outer mold pieces to each other. Filling a cavity around the top portion of the metal retainer with an elastomeric compound. Removing the metal retainer and the formed rubber sealing element from the mold pieces, and pressing downward over the formed valve stem seal to compress the second section of the body portion radially inwardly.

公开(公告)号：US20170204752A1

公开(公告)日：2017-07-20

申请号：US15410742

申请日：2017-01-19

Applicant: Mahle International GmbH

Inventor： Peter Kroos ,  Christoph Luven ,  Alexander Puck ,  Roland Schacherer

IPC: F01L3/14 ,  F01L3/06 ,  F01L3/20

CPC classification number: F01L3/14 ,  F01L3/04 ,  F01L3/06 ,  F01L3/20 ,  F01L2101/00 ,  F01L2103/00

Abstract: A metallic hollow valve for an internal combustion engine of a utility vehicle may include a tubular valve stem and a valve head merging into the valve stem. The valve head may have an outer diameter that is enlarged compared to the valve stem. The valve stem and the valve head may together delimit a hollow space. The valve stem may have an outer diameter of more than 7 mm, for example between 8 mm and 11 mm. The valve stem may have an inner diameter of at least 4.5 mm, for example between 5 mm and 7 mm.

公开(公告)号：US20170122147A1

公开(公告)日：2017-05-04

申请号：US15296827

申请日：2016-10-18

Applicant: Henkel AG & Co. KGaA

Inventor： Shawn E. Dolan ,  James P. Golding

IPC: F01L3/04 ,  F01N3/10 ,  F02B23/10 ,  F02M35/10 ,  F02B77/04 ,  F02B75/12 ,  F02F3/14 ,  F01N13/10 ,  F02B77/02

CPC classification number: F01L3/04 ,  C25D7/04 ,  C25D9/12 ,  F01L2101/00 ,  F01L2103/00 ,  F01L2820/01 ,  F01N3/10 ,  F01N3/18 ,  F01N13/10 ,  F01N2510/06 ,  F01N2530/06 ,  F01N2570/10 ,  F01N2570/12 ,  F01N2570/14 ,  F02B23/104 ,  F02B75/12 ,  F02B77/02 ,  F02B77/04 ,  F02B2075/125 ,  F02F3/14 ,  F02F2200/00 ,  F02M35/10334 ,  Y02T10/125

Abstract: A method and apparatus for reducing at least one of HC, CO, and NOx emissions from an operating internal combustion engine fueled by hydrocarbon or similar fuels, such as alcohols, wherein a portion of the internal combustion chamber has aluminum and/or titanium containing surfaces coated with a titanium dioxide coating further comprising a dopant in and/or on the adherent titanium dioxide coating.

公开(公告)号：US20160017477A1

公开(公告)日：2016-01-21

申请号：US14772030

申请日：2013-03-22

Applicant: NITTAN VALVE CO., LTD.

Inventor： Yukio Kubota ,  Shinichi Ishii

IPC: C23C14/06 ,  C23C14/02 ,  F01L3/04

CPC classification number: C23C14/0611 ,  C23C14/024 ,  C23C14/025 ,  C23C16/0272 ,  C23C16/0281 ,  C23C16/26 ,  F01L3/04

Abstract: [Problems to be Solved] The present invention provides a DLC (diamond like carbon) film coating and a coated valve lifter, wherein the DLC film can be formed at a film forming rate comparable with that achieved in the case of forming the DLC coating film by the CVD (chemical vapor deposition) method and has good durability comparable with that obtained in the case of forming the DLC film coating by the sputtering film forming method.[Solution] The DLC film coating includes an intermediate layer 3 deposited on the surface of a base substrate and a DLC layer 4 deposited on the intermediate layer 3. The intermediate layer 3 is formed of metal carbide or metal capable of forming a hard surface and the DLC layer 4 is formed by adding a common metal element to that contained in the intermediate layer 3 thereto while inert gas containing hydrocarbon gas is being introduced. As a result, the intermediate layer 3 and the DLC layer 4 can be formed by sequential sputtering processing and in addition, an H (hydrogen) content contained in the DLC layer 4 can be adjusted by forming a Me-DLC (metal addition DLC) layer as a DLC layer 4.

Abstract translation: [待解决的问题]本发明提供了一种DLC（类金刚石碳）膜涂层和涂层阀提升机，其中DLC膜可以以与形成DLC涂膜的情况相同的成膜速率来形成 通过CVD（化学气相沉积）方法，并且具有与通过溅射成膜方法形成DLC膜的情况下获得的耐久性相当的良好的耐久性。 [解决方案] DLC膜涂层包括沉积在基底表面上的中间层3和沉积在中间层3上的DLC层4.中间层3由能够形成硬表面的金属碳化物或金属形成， 通过在引入包含烃气体的惰性气体的同时向包含在中间层3中的普通金属元素添加DLC层4。 结果，中间层3和DLC层4可以通过顺序溅射法形成，此外，通过形成Me-DLC（金属添加DLC）可以调节DLC层4中所含的H（氢）含量， 层作为DLC层4。

公开(公告)号：US09163734B2

公开(公告)日：2015-10-20

申请号：US14208822

申请日：2014-03-13

Applicant: NITTAN VALVE CO., LTD.

Inventor： Maiku Mikami ,  Kazunori Kurahashi

IPC: F16K1/42 ,  B21K1/22 ,  F01L3/04 ,  B23P15/00 ,  F01L3/00

CPC classification number: F16K1/42 ,  B21K1/22 ,  B23P15/002 ,  F01L3/00 ,  F01L3/04 ,  F01L2103/00 ,  Y10T137/0491 ,  Y10T137/0497

Abstract: A method of forming a poppet valve having a stem, a valve head and a valve seat while concurrently maintaining compressive residual stress without grain coarsening on both the valve body and the valve seat. The method includes forming a rounded cladded part on the valve head of the poppet valve by welding and forming a valve seat surface at a predetermined aperture angle and cutting the cladded part to form a smooth surface which is subjected to uniform contact pressure at a temperature less than the recrystallization temperature of the base material or cladding material, whichever is lower, to enhance the durability of the valve seat.

Abstract translation: 一种形成具有杆，阀头和阀座的提升阀的方法，同时保持压缩残余应力而不会在阀体和阀座两者上产生晶粒粗化。 该方法包括通过以预定的孔径角焊接和形成阀座表面，在提升阀的阀头上形成圆形包层部分，并切割该包层部分以形成光滑表面，其在较低温度下受到均匀的接触压力 比基材或包层材料的再结晶温度（以较低者为准），以提高阀座的耐久性。