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Title:
中空軸の製造方法
Document Type and Number:
Japanese Patent JP3694026
Kind Code:
B2
Abstract:
PCT No. PCT/DE95/00986 Sec. 371 Date Mar. 10, 1997 Sec. 102(e) Date Mar. 10, 1997 PCT Filed Jul. 19, 1995 PCT Pub. No. WO96/05004 PCT Pub. Date Feb. 22, 1996A method of manufacturing a hollow spindle, especially for the pivotal mounting of valve-actuating levers to control exhaust-and-intake valves of an internal combustion engine. The spindle has an outer tube, in the interior of which a shaped tubular body is fixed in order to form at least two liquid-carrying chambers. To form a chamber, the tubular body is provided with a cutout extending in the longitudinal direction. The tubular body is a shaped inner tube that, seen in cross-section, has an inwardly-curved region that makes a rounded and stepless transition to the circular region, and of the tubular body. At least the circular region is joined by virtue of its material to the outer tube.

Inventors:
Kurten, Franz
Wittenberg, dieter
Keith Rink, Martin
Marie, Gunther
Application Number:
JP50690896A
Publication Date:
September 14, 2005
Filing Date:
July 19, 1995
Export Citation:
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Assignee:
Mannesmann Actien Gezelshaft
International Classes:
B21C37/06; B21C1/00; B21C37/15; B21K1/12; F01L1/18; (IPC1-7): B21C37/15; B21C1/00; B21C37/06
Domestic Patent References:
JP49092646A
JP53055467A
JP49066258A
Foreign References:
GB2268547A
Attorney, Agent or Firm:
Nao Okuyama
Akiyama Noburi
Shoichi Okuyama
Arihara Koichi