公开(公告)号：US20130319365A1

公开(公告)日：2013-12-05

申请号：US13893919

申请日：2013-05-14

Applicant: GM Global Technology Operations LLC

Inventor： Edward P. Becker

IPC: F01M9/02

CPC classification number: F01M9/02 ,  C10M125/22 ,  C10M2201/065 ,  C10M2201/066 ,  C10N2210/06 ,  C10N2230/06 ,  C10N2240/10 ,  C10N2250/121 ,  F02F1/20 ,  F16J10/04

Abstract: A low friction coating for an internal combustion engine and a method of forming a low friction surface on at least one of the engine's friction-sensitive components. In one form, a solid lubricant precursor additive is combined with motor oil such that upon work being performed on the combination by adjacently-interacting engine components, the solid lubricant tribochemically reacts to form a friction-reducing coating or film. In one preferred form, the coating or film is triboformed on a cylinder bore or a liner configured to fit within the bore. The reciprocating movement between the cylinder or liner and a piston and/or piston rings promotes in-situ formation of the layer after the engine has already been manufactured rather than during engine fabrication or assembly.

Abstract translation: 用于内燃机的低摩擦涂层和在至少一个发动机的摩擦敏感部件上形成低摩擦表面的方法。 在一种形式中，固体润滑剂前体添加剂与机油相结合，使得当通过相邻相互作用的发动机部件对组合进行工作时，固体润滑剂摩擦化学反应以形成减摩擦涂层或膜。 在一个优选形式中，涂层或膜在汽缸孔或配置成装配在孔内的衬套上摩擦。 在发动机已经被制造之后，而不是在发动机制造或组装期间，气缸或衬套与活塞和/或活塞环之间的往复运动促进了层的原位形成。

公开(公告)号：US09133739B2

公开(公告)日：2015-09-15

申请号：US13893919

申请日：2013-05-14

Applicant: GM Global Technology Operations LLC

Inventor： Edward P. Becker

IPC: F01M9/02 ,  F02F1/20 ,  F16J10/04 ,  C10M125/22

CPC classification number: F01M9/02 ,  C10M125/22 ,  C10M2201/065 ,  C10M2201/066 ,  C10N2210/06 ,  C10N2230/06 ,  C10N2240/10 ,  C10N2250/121 ,  F02F1/20 ,  F16J10/04

Abstract: A low friction coating for an internal combustion engine and a method of forming a low friction surface on at least one of the engine's friction-sensitive components. In one form, a solid lubricant precursor additive is combined with motor oil such that upon work being performed on the combination by adjacently-interacting engine components, the solid lubricant tribochemically reacts to form a friction-reducing coating or film. In one preferred form, the coating or film is triboformed on a cylinder bore or a liner configured to fit within the bore. The reciprocating movement between the cylinder or liner and a piston and/or piston rings promotes in-situ formation of the layer after the engine has already been manufactured rather than during engine fabrication or assembly.

Abstract translation: 用于内燃机的低摩擦涂层和在至少一个发动机的摩擦敏感部件上形成低摩擦表面的方法。 在一种形式中，固体润滑剂前体添加剂与机油相结合，使得当通过相邻相互作用的发动机部件对组合进行工作时，固体润滑剂摩擦化学反应以形成减摩擦涂层或膜。 在一个优选形式中，涂层或膜在汽缸孔或配置成装配在孔内的衬套上摩擦。 在发动机已经被制造之后，而不是在发动机制造或组装期间，气缸或衬套与活塞和/或活塞环之间的往复运动促进了层的原位形成。

公开(公告)号：US20150251248A1

公开(公告)日：2015-09-10

申请号：US13628490

申请日：2012-09-27

Applicant: GM Global Technology Operations LLC

Inventor： Edward P. Becker ,  Yucong Wang

IPC: B22F3/08 ,  H01F41/02 ,  H01F1/057

CPC classification number: B22F3/08 ,  B22F2998/00 ,  C22C33/02 ,  C22C38/001 ,  C22C38/005 ,  C22C2202/00 ,  H01F1/0577 ,  H01F41/0266 ,  H01F41/0273 ,  H01F41/0293 ,  B22F1/0059 ,  B22F3/02 ,  B22F3/10

Abstract: A method of near net shaping a rare earth permanent magnet and a permanent magnet. The method includes introducing a magnetic material powder into a die, closing the die and shock compacting the powder in the die and sintering the compacted magnet powder to form the rare earth permanent magnet part. In one form, the magnetic material being subjected to compaction is a mixture made up of two or more different magnetic material powder precursors. Additional materials may be added to the mixture. One such additional material may be a lubricant to reduce the likelihood of cracking, while another may be a coating to provide oxidation protection of the mixture. Evacuation or inert environments may also be used either prior to or in conjunction with the sintering or related high-temperature part of the process.

Abstract translation: 一种近净成形稀土永磁体和永磁体的方法。 该方法包括将磁性材料粉末引入模具中，封闭模具并冲击压实模具中的粉末并烧结压实的磁体粉末以形成稀土永磁体部件。 在一种形式中，经受压实的磁性材料是由两种或更多种不同的磁性材料粉末前体组成的混合物。 可以向混合物中加入另外的材料。 一种这样的附加材料可以是减少开裂可能性的润滑剂，而另一种可以是提供混合物的氧化保护的涂层。 疏散或惰性环境也可以在烧结或过程的相关高温部分之前或结合使用。

公开(公告)号：US09272332B2

公开(公告)日：2016-03-01

申请号：US13628490

申请日：2012-09-27

Applicant: GM Global Technology Operations LLC

Inventor： Edward P. Becker ,  Yucong Wang

IPC: B22F3/08 ,  H01F41/02 ,  H01F1/057 ,  C22C33/02 ,  C22C38/00

CPC classification number: B22F3/08 ,  B22F2998/00 ,  C22C33/02 ,  C22C38/001 ,  C22C38/005 ,  C22C2202/00 ,  H01F1/0577 ,  H01F41/0266 ,  H01F41/0273 ,  H01F41/0293 ,  B22F1/0059 ,  B22F3/02 ,  B22F3/10

Abstract: A method of near net shaping a rare earth permanent magnet and a permanent magnet. The method includes introducing a magnetic material powder into a die, closing the die and shock compacting the powder in the die and sintering the compacted magnet powder to form the rare earth permanent magnet part. In one form, the magnetic material being subjected to compaction is a mixture made up of two or more different magnetic material powder precursors. Additional materials may be added to the mixture. One such additional material may be a lubricant to reduce the likelihood of cracking, while another may be a coating to provide oxidation protection of the mixture. Evacuation or inert environments may also be used either prior to or in conjunction with the sintering or related high-temperature part of the process.

Abstract translation: 一种近净成形稀土永磁体和永磁体的方法。 该方法包括将磁性材料粉末引入模具中，封闭模具并冲击压实模具中的粉末并烧结压实的磁体粉末以形成稀土永磁体部件。 在一种形式中，经受压实的磁性材料是由两种或更多种不同的磁性材料粉末前体组成的混合物。 可以向混合物中加入另外的材料。 一种这样的附加材料可以是减少开裂可能性的润滑剂，而另一种可以是提供混合物的氧化保护的涂层。 疏散或惰性环境也可以在烧结或过程的相关高温部分之前或结合使用。

公开(公告)号：US09870862B2

公开(公告)日：2018-01-16

申请号：US13868468

申请日：2013-04-23

Applicant: GM Global Technology Operations LLC

Inventor： Shekhar G. Wakade ,  Yucong Wang ,  Edward P. Becker

IPC: H01F41/02

CPC classification number: H01F41/0246 ,  H01F41/0266

Abstract: A number of variations may include a method including providing a first powder comprising iron; compacting the first powder into a compacted powder product having a non-planar surface, wherein the compacting includes dynamic magnetic compaction or combustion driven compaction; and increasing the magnetic coercivity of at least one of the first powder or compact powder product.

公开(公告)号：US20140314611A1

公开(公告)日：2014-10-23

申请号：US13868468

申请日：2013-04-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Shekhar G. Wakade ,  Yucong Wang ,  Edward P. Becker

IPC: H01F41/02

CPC classification number: H01F41/0246 ,  H01F41/0266

Abstract: A number of variations may include a method including providing a first powder comprising iron; compacting the first powder into a compacted powder product having a non-planar surface, wherein the compacting includes dynamic magnetic compaction or combustion driven compaction; and increasing the magnetic coercivity of at least one of the first powder or compact powder product.

Abstract translation: 许多变型可以包括提供包含铁的第一粉末的方法; 将第一粉末压实成具有非平面表面的压实粉末产品，其中压实包括动态磁性压实或燃烧驱动的压实; 以及增加所述第一粉末或致密粉末产品中的至少一种的磁矫顽力。