专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20180252181A1 METHOD FOR PRODUCING A PISTON 审中-公开
公开(公告)号：US20180252181A1
公开(公告)日：2018-09-06
申请号：US15755061
申请日：2016-08-15
申请人： Mahle International GmbH
发明人： Udo Rotmann , Armin Wenzel , Juergen Friedrich
IPC分类号： F02F3/08 , B22F3/11 , B22D15/02 , B21K1/18
CPC分类号： F02F3/08 , B21K1/18 , B22D15/02 , B22F3/1118 , B23P15/10 , F02F2003/0007 , F02F2200/04 , F05C2201/021 , F16J1/005
摘要： A method for producing a piston may include forming a piston blank in a first forming tool such that the piston blank surrounds a ring carrier configured to receive a piston ring via positive engagement after producing the ring carrier by a sintering process. The piston blank, at least in a circumferential region disposed at a piston head, may be composed of a light metal alloy suitable for forging. The method may also include removing the piston blank from the first forming tool and placing the piston blank in a second forming tool, and inserting a holding-down tool into the second forming tool to hold the ring carrier down. The method may further include pressing a final forming punch into the second forming tool to deform the piston blank and form a piston.

2. 发明授权

US10066579B2 Simple friction weld 有权
公开(公告)号：US10066579B2
公开(公告)日：2018-09-04
申请号：US14795485
申请日：2015-07-09
申请人： KS KOLBENSCHMIDT GMBH
发明人： Volker Gniesmer , Gerhard Luz , Jochem Müller , Christian Schaller
IPC分类号： F02F3/00 , B23K20/12 , F02F3/22 , B23K31/02 , F01P3/10 , F02F3/20 , B23K101/00
CPC分类号： F02F3/003 , B23K20/129 , B23K31/02 , B23K2101/003 , F01P3/10 , F02F3/20 , F02F3/22 , F02F2003/0061 , F02F2200/04 , Y10T29/49249
摘要： A cooling channel piston for an internal combustion engine which includes a piston bottom and a piston shaft that are joined thereto of a friction welding process. The piston bottom and the piston shaft jointly form a cooling channel. An annular wall which radially delimits the cooling channel towards the outside is formed by the piston bottom and/or the piston shaft. The annular wall can be sealed by a welding process once the piston bottom and the piston shaft have been joined together.

3. 发明申请

US20170232501A1 HOT FORMING OF COOLING GALLERIES IN STEEL PISTONS 审中-公开
公开(公告)号：US20170232501A1
公开(公告)日：2017-08-17
申请号：US15426724
申请日：2017-02-07
申请人： Ohio State Innovation Foundation
发明人： Rajiv SHIVPURI
IPC分类号： B21K1/18 , F02F3/18 , B23P15/10
CPC分类号： B21K1/185 , B23P15/10 , F02F3/18 , F02F3/22 , F02F2200/04
摘要： A piston, particularly a piston for use in a diesel engine, particularly a heavy duty diesel engine, is formed from a billet of metal, such that the finished piston has a mass that is at least 50%, and, more preferably, up to about 62%, of the mass of the billet. Other than finishing steps, the piston is formed with a closed gallery, without loss of mass through machining processes.

4. 发明授权

US09656320B2 Method for simultaneously producing first and second piston parts 有权
公开(公告)号：US09656320B2
公开(公告)日：2017-05-23
申请号：US13490203
申请日：2012-06-06
申请人： Klaus Keller , Rainer Scharp
发明人： Klaus Keller , Rainer Scharp
IPC分类号： B21K1/18 , B23P15/10 , B21J13/02 , F16J1/00 , B21J5/02 , F02F3/00
CPC分类号： B21K1/18 , B21J5/022 , B21J13/02 , B23P15/10 , F02F3/00 , F02F2200/04 , F16J1/005 , Y10T29/49249
摘要： A method and apparatus for simultaneously producing a first piston part and a second piston part via a forging device may include an upper die, at least one intermediate die, and a lower die. A first billet may be placed between the upper die and the intermediate die, and a second billet may be placed between the intermediate die and the lower die. The upper die and the lower die may be configured to be moved toward each other, whereby the first piston part is forged from the first billet and the second piston part is forged at the same time from the second billet. The upper die and the lower die may then be configured to be moved apart, and the piston parts may be removed.

5. 发明申请

US20170107936A1 METHOD FOR PRODUCING A PISTON 审中-公开
公开(公告)号：US20170107936A1
公开(公告)日：2017-04-20
申请号：US15297109
申请日：2016-10-18
申请人： MAHLE INTERNATIONAL GMBH
发明人： LOTHAR PFIZENMAIER , REINER MUELLER
IPC分类号： F02F3/20 , B23K31/02 , B22C9/10 , B22D15/02 , F02F3/00 , B22C9/24
CPC分类号： F02F3/20 , B21K1/185 , B22C9/105 , B22C9/108 , B22C9/24 , B22D15/02 , B22D29/002 , B22D31/002 , B23K31/02 , B23P15/10 , F02F3/0015 , F02F3/003 , F02F3/22 , F02F2003/0061 , F02F2200/00 , F02F2200/04 , F02F2200/06
摘要： A method for producing a piston of an internal combustion engine, with a cooling duct, may include producing a piston blank with a cooling duct, closing an inlet and an outlet of the cooling duct by at least one closure element, machine-finishing the piston blank, and removing the at least one closure element.

6. 发明申请

US20160281637A1 METHOD FOR PRODUCING A PISTON FOR AN INTERNAL COMBUSTION ENGINE AND PISTON PRODUCED BY SAID METHOD 审中-公开
标题翻译：用于生产用于内燃机和活塞的活塞的方法
公开(公告)号：US20160281637A1
公开(公告)日：2016-09-29
申请号：US14778076
申请日：2014-03-18
申请人： MAHLE INTERNATIONAL GMBH
发明人： Gerhard Berr , Sascha-Oliver Boczek , Reiner Mueller , Rainer Scharp
IPC分类号： F02F3/28 , B23P15/10
CPC分类号： F02F3/28 , B21K1/18 , B21K1/185 , B23B2215/245 , B23K15/0053 , B23K15/0093 , B23K26/282 , B23K26/32 , B23K2101/003 , B23K2103/04 , B23K2103/50 , B23P15/10 , F02F3/003 , F02F3/22 , F02F2003/0061 , F02F2200/04
摘要： A method for producing a piston for an internal combustion engine may include the steps of: producing a piston main body from a first blank via a deformation process; producing a piston ring part from a second blank via at least one of a deformation process and a casting process; pre-machining the first blank and the second blank, and finish machining a welding surface of the first blank and a welding surface of the second blank; connecting the pre-machined first blank and the pre-machined second blank via a welding process to form a piston body; and performing at least one of a secondary machining and a finish machining of the piston body to produce the piston.
摘要翻译：一种用于制造内燃机的活塞的方法可以包括以下步骤：通过变形过程从第一坯料制造活塞主体; 通过变形过程和铸造过程中的至少一个从第二坯料生产活塞环部分; 对第一坯料和第二坯料进行预加工，并对第一坯料的焊接表面和第二坯料的焊接表面进行精加工; 通过焊接工艺连接预加工的第一坯料和预加工的第二坯料以形成活塞体; 并且进行活塞体的二次加工和精加工中的至少一个以制造活塞。

7. 发明申请

US20160222913A1 COMPLEX-SHAPED FORGED PISTON OIL GALLERIES 有权
标题翻译：复合型活塞式活塞油箱
公开(公告)号：US20160222913A1
公开(公告)日：2016-08-04
申请号：US15096498
申请日：2016-04-12
申请人： FEDERAL-MOGUL CORPORATION
发明人： NORBERT G. SCHNEIDER
IPC分类号： F02F3/28 , F02F3/00 , F02F3/22
CPC分类号： F02F3/285 , B21K1/185 , F02F3/003 , F02F3/22 , F02F3/26 , F02F2003/0061 , F02F2200/04 , F05C2201/0448 , F16J1/08 , Y10T29/49249
摘要： A steel piston with an oil gallery, and process for forming a steel piston oil gallery channel, which corresponds to the complex shape of the combustion bowl in the piston crown. The oil gallery channel is first forged to the basic shape that corresponds to the shape of the walls of the combustion bowl. Machine-turning surfaces in the oil gallery channel can be machine-finished as desired. Surfaces in the oil gallery which cannot be machined with conventional turning operations, such as recesses and protrusions into the channel, are left in the original forged condition.
摘要翻译：具有油画廊的钢活塞，以及用于形成钢活塞油道通道的工艺，其对应于活塞冠中燃烧碗的复杂形状。油画廊通道首先被锻造成对应于燃烧碗壁的形状的基本形状。油画廊通道中的机械转动表面可根据需要进行机加工。不能用传统的转动操作（例如通道中的凹陷和突起）加工的油田中的表面留在原始的锻造状态。

8. 发明申请

US20160177865A1 PISTON WITH COOLING GALLERY HAVING ENHANCED OIL INLET AND METHOD OF CONSTRUCTION THEREOF 有权
标题翻译：具有加强油入口的冷却图案的活塞及其构造方法
公开(公告)号：US20160177865A1
公开(公告)日：2016-06-23
申请号：US14975451
申请日：2015-12-18
申请人： Federal-Mogul Corporation
发明人： Michael Weinenger
IPC分类号： F02F3/22 , F02F3/00
CPC分类号： F02F3/22 , B23P15/10 , F02F3/00 , F02F3/0015 , F02F3/16 , F02F3/28 , F02F2003/0007 , F02F2003/0061 , F02F2200/04
摘要： A piston and method of construction thereof are provided. The piston includes an upper crown having an upper combustion surface and a lower crown depending therefrom. The lower crown includes a pair of laterally spaced, axially aligned pin bores configured for receipt of a wrist pin. A substantially closed, annular outer cooling gallery is formed between the upper and lower crowns, wherein a bottom surface of the cooling gallery is formed by a floor of the lower crown. An oil inlet and an oil outlet extend through the floor. The oil inlet includes an upstanding toroid-shaped protrusion that extends upwardly from the floor into the cooling gallery, wherein the protrusion is formed as a monolithic extrusion from the material of the lower crown floor.
摘要翻译：提供一种活塞及其构造方法。活塞包括具有上燃烧表面和从其离开的下冠的上冠部。下冠包括一对侧向间隔开的轴向对准的销孔，其构造成用于容纳腕针。在上冠和下冠之间形成一个基本封闭的环形外冷却廊，其中冷却廊的底面由下冠的底部形成。进油口和出油口延伸穿过地板。油入口包括直立的环形突起，其从地板向上延伸到冷却槽中，其中突起形成为从下冠层的材料的整体挤压。

9. 发明授权

US08904634B2 Forging method for producing a piston or piston skirt 有权
标题翻译：用于生产活塞或活塞裙的锻造方法
公开(公告)号：US08904634B2
公开(公告)日：2014-12-09
申请号：US13533604
申请日：2012-06-26
申请人： Wolfgang Iβler
发明人： Wolfgang Iβler
IPC分类号： B23P15/10 , B21K1/18 , F02F3/00
CPC分类号： B21K1/18 , F02F3/00 , F02F2200/04 , Y10T29/49249
摘要： A forging method for producing a piston skirt having two skirt walls and two box walls connecting the skirt walls may include forging, to the piston skirt, the skirt walls at least slightly conically towards the outside of the piston skirt via a first forging die. The box walls may be forged to the piston skirt, wherein each box wall has a hub inside and a hub outside. The box walls may be moulded via a second forging die, wherein the hub outside of each box wall runs at least one of substantially parallel to the piston axis and slightly sloping to an outside of their hub inside towards a free end of the piston skirt to the outside. The skirt walls may be drawn, simultaneously with moulding of the box walls, into a position that is approximately parallel to the piston axis.
摘要翻译：用于制造具有连接裙壁的两个裙壁和两个箱壁的活塞裙的锻造方法可以包括经由第一锻造模具至少稍微圆锥形地朝向活塞裙部的外侧锻造活塞裙部。盒壁可以锻造到活塞裙部，其中每个盒壁具有内部的轮毂和轮毂外部。盒壁可以通过第二锻造模具模制，其中每个箱壁外侧的轮毂至少基本上平行于活塞轴线延伸，并且稍微倾斜到其轮毂内部的内侧，朝向活塞裙部的自由端，外。裙壁可以与箱壁的成型同时拉伸到大致平行于活塞轴线的位置。

10. 发明授权

US08474366B2 Piston with a skirt having oil flow slots and method of construction thereof 有权
标题翻译：具有油槽的裙子的活塞及其构造方法
公开(公告)号：US08474366B2
公开(公告)日：2013-07-02
申请号：US12617772
申请日：2009-11-13
申请人： Miguel Azevedo , Andrew Leibold , Airton Martins
发明人： Miguel Azevedo , Andrew Leibold , Airton Martins
IPC分类号： F02F3/00 , F16J1/04
CPC分类号： F02F3/24 , F02B23/0672 , F02F3/003 , F02F2003/0061 , F02F2200/04 , F16J1/04 , F16J1/08 , Y02T10/125 , Y10T29/49249
摘要： A piston has a pair of diametrically opposite skirt portions with convex outer surfaces. Each skirt portion has opposite side edges extending substantially parallel to a central axis of the piston to a free end. The skirt portions each have a recessed slot extending radially into the convex outer surface to a recessed surface. The recessed surface extends fully across the convex outer surface to the side edges and separates an upper band section of the convex outer surface from a lower band section of the convex outer surface.
摘要翻译：活塞具有一对具有凸形外表面的直径相对的裙部。每个裙部具有基本上平行于活塞的中心轴线延伸到自由端的相对侧边缘。裙部各自具有凹槽，凹槽沿径向延伸到凸形外表面到凹陷表面。凹入表面完全延伸穿过凸形外表面到侧边缘，并且将凸形外表面的上带部分与凸形外表面的下带部分分离。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式