公开(公告)号：US20030085201A1

公开(公告)日：2003-05-08

申请号：US10325191

申请日：2002-12-20

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： Venkatasubramanian Ananthanarayanan ,  Michael Henry Froning ,  Sohrab Sadri Lonbani ,  Janusz Pawel Goldasz ,  Michael Everett Hornback ,  Patrick Neil Hopkins ,  William Charles Kruckemeyer

IPC: H05B006/00

CPC classification number: B23K11/002 ,  B23K11/3081 ,  B23K26/037 ,  B23P15/10 ,  B23P2700/14 ,  F16F9/3214 ,  F16F9/535

Abstract: The piston for a magneto-rheological fluid system is manufactured from a piston skirt of a material having a high magnetic permeability and a piston plate which closes one end of the piston skirt having a low magnetic permeability and therefore must be made out of a material such as stainless steel. The piston is manufactured by placing the plate on one electrode and clamping another set of electrodes against the outer circumferential surface of the piston ring or skirt. The plate and ring are brought into contact with one another while applying a current through the piston ring and the piston plate, thereby heating interfering portions of the ring and plate and permitting the plate to be forced inside of the ring while at the same time allowing the softened or plastic portions of the ring and plate to intermingle with one another and thus form a solid state bond.

公开(公告)号：US20020144870A1

公开(公告)日：2002-10-10

申请号：US09826020

申请日：2001-04-04

Applicant: Delphi Technologies, Inc.

Inventor： Sohrab Sadri Lonbani ,  John H. Muhlenkamp ,  Patrick N. Hopkins ,  Ilya Lisenker ,  Venkatasubramanian Ananthanarayanan

IPC: F16F015/03

CPC classification number: F16F9/535 ,  Y10S137/909

Abstract: A magneto-rheological damping device comprises a core element for carrying a magnetic flux and a magnetic flux generator positioned adjacent to a portion of the core element and operable to generate a magnetic flux in the core element. A sleeve is positioned over the core element and magnetic flux generator and includes a plurality of protrusions extending generally radially outwardly from a center of the core element. A flux ring surrounds the core element and sleeve and defining a passage between flux ring and core element for the flow of a magneto-rheological fluid. The sleeve protrusions are configured to engage the flux ring and secure the flux ring in a concentric position around the core element and sleeve.

Abstract translation: 磁流变阻尼装置包括用于承载磁通的芯元件和邻近核心元件的一部分定位的磁通发生器，并可操作以在芯元件中产生磁通量。 套筒位于芯元件和磁通量发生器之上，并且包括从芯元件的中心大致径向向外延伸的多个突起。 磁通环围绕芯元件和套筒并且在磁流环和磁芯元件之间限定用于磁流变流体流动的通道。 套筒凸起构造成与磁通环接合并将磁通环固定在围绕芯元件和套筒的同心位置。

公开(公告)号：US20040056001A1

公开(公告)日：2004-03-25

申请号：US10253099

申请日：2002-09-24

Applicant: DELPHI TECHNOLOGIES INC.

Inventor： Venkatasubramanian Ananthanarayanan ,  Desra N. Herbst ,  Dharmendra M. Ramachandra

IPC: B23K011/00

CPC classification number: B23K33/00 ,  B23K11/0935 ,  B23K11/3009 ,  B23K11/3081

Abstract: Welded structures having a first and a second member formed from sheet metal, tubes, and similar shapes, are economically fabricated through use of a method for joining a second member to a first member having a folded rim extending therefrom. The folded rim defines an air gap within the folded rim. The first and second members are joined together by forcing the folded rim against the second member under sufficient pressure to flatten the folded rim to a point that there remains substantially no air gap inside the folded rim, and resistance welding together the first and second members. The second member and the rim respectively define faying surfaces thereof. The air gap inside the folded rim extends generally parallel to the faying surfaces. The faying surfaces of the rim and second member are forced against one another by applying pressure through the folded rim in a direction generally perpendicular to the faying surfaces. While applying pressure, a first level of electrical current may be passed through the first and second members for softening the rim by electrical resistance heating and causing the softened rim to deform against the second member. Pressure is maintained, and a second level of electrical current, higher than the first level of current, is applied for a time sufficient to at least partially melt the folded rim and form a deformation resistance weld between the first and second member.

Abstract translation: 具有由金属板，管和类似形状形成的第一和第二构件的焊接结构通过使用用于将第二构件连接到具有从其延伸的折叠边缘的第一构件的方法而经济地制造。 折叠的边缘限定折叠边缘内的气隙。 第一和第二构件通过在足够的压力下将折叠的边缘压靠第二构件连接在一起，以使折叠的边缘平坦化，使得折叠边缘内部基本上不存在气隙，并且将第一和第二构件的电阻焊接在一起。 第二构件和边缘分别限定其搭接表面。 折叠边缘内的气隙大体上平行于配合面延伸。 轮缘和第二构件的拼接表面通过在大体上垂直于拼接表面的方向上通过折叠边缘施加压力而相互强迫。 在施加压力的同时，第一级电流可以通过第一和第二构件，用于通过电阻加热来软化边缘，并使软化的边缘相对于第二构件变形。 保持压力，并且施加高于第一电流电流的第二电平电流足以至少部分地熔化折叠边缘并在第一和第二构件之间形成变形阻力焊缝的时间。

公开(公告)号：US20030178268A1

公开(公告)日：2003-09-25

申请号：US10105542

申请日：2002-03-25

Applicant: DELPHI TECHNOLOGIES INC.

Inventor： Venkatasubramanian Ananthanarayanan ,  Stephen C. Hagwood ,  Essam E. Salama

IPC: F16F009/00

CPC classification number: F16F9/3242 ,  F16F9/54

Abstract: A method of forming an attachment fitting for a suspension tube comprises providing an insert in a mold, and casting a ring element in the mold. The ring element is metallurgically bonded to the insert. An attachment fitting formed by this method is also disclosed.

Abstract translation: 形成用于悬挂管的附接配件的方法包括在模具中设置插入件，并将环形元件浇铸在模具中。 环形元件与冶金结合在一起。 还公开了通过该方法形成的附件配件。