公开(公告)号：US20030070736A1

公开(公告)日：2003-04-17

申请号：US09977167

申请日：2001-10-12

Applicant: Borg Warner Inc.

Inventor： Tom R. Jackson ,  Anne Marie Fraboni

IPC: C21D001/00

CPC classification number: B21L15/00 ,  B21L15/005 ,  C21D1/20 ,  C21D7/02 ,  C21D9/0087 ,  C21D9/0093 ,  C21D2211/002 ,  C21D2211/008

Abstract: Ferrous articles are austenitized, then converted to at least 60% bainite, and the balance substantially converted to martensite; the articles are then cold worked, preferably by both compression and tensile deformation to at least 60% yield strength. The articles have improved serviceability, particularly fatigue life.

Abstract translation: 亚铁制品奥氏体化，然后转化为至少60％贝氏体，余量基本上转化为马氏体; 然后将制品冷加工，优选通过压缩和拉伸变形至至少60％屈服强度。 这些物品具有改善的使用性，特别是疲劳寿命。

公开(公告)号：US20170159514A1

公开(公告)日：2017-06-08

申请号：US15325172

申请日：2015-07-01

Applicant: BORG WARNER INC.

Inventor： Michael Loren SMART ,  Mark WIGSTEN

IPC: F01L9/02 ,  F15B1/027 ,  F15B15/14 ,  F01L1/02

CPC classification number: F01L9/025 ,  F01L1/02 ,  F01L1/04 ,  F01L9/02 ,  F15B1/027 ,  F15B15/14

Abstract: A crankshaft driven valve actuation system (30), and methods of operation and assembly, for controlling opening and closing at least one hydraulically actuated engine valve (34a, 34b, 34c, 34d, 134a, 134b, 134c, 134d) associated with a cylinder of an internal combustion engine can include a crankshaft (50) driven by the engine, at least one fluid piston pump (36a, 36b) mounted for rotation on the crankshaft (50) for generating a reciprocating fluid flow in response to rotation of the crankshaft (50), a fluid passage providing fluid communication of the reciprocating fluid flow with one of the at least one hydraulically actuated valves to be controlled, and at least one control valve (56a, 56b, 56c, 56d) providing fluid flow between at least one accumulator (46, 46a, 46b, 46c, 46d) and the at least one fluid piston pump (36a, 36b) for modifying a valve timing actuation curve of the hydraulically actuated engine valve (34a, 34b, 34c, 34d, 134a, 134b, 134c, 134d) during reciprocal fluid flow.

公开(公告)号：US20170159555A1

公开(公告)日：2017-06-08

申请号：US15325183

申请日：2015-07-07

Applicant: BORG WARNER INC.

Inventor： Jair REYES ,  Rajendra VEMULA ,  Guenther GUTH

IPC: F02B37/24 ,  F01D17/16

CPC classification number: F02B37/24 ,  F01D17/165 ,  F02C6/12 ,  F05D2220/40 ,  F05D2230/51 ,  F05D2230/52 ,  F05D2250/90 ,  F05D2300/506 ,  Y02T10/144

Abstract: An adjustment ring (50) is configured to facilitate vane (30) position adjustment in a variable turbine geometry turbocharger (1), and is formed of an assembly of one or more first ring portions (60) that are formed of a first material, and one or more second ring portions (61) that are formed of a second material. The first material has different material properties than the second material. In some embodiments, high-wear portions of the adjustment ring (50) can selectively and cost-effectively be formed of wear-resistant material while remaining portions are formed of a conventional material. A cost-effective method of manufacturing multi-piece adjustment rings (50) is described.