Aktiebolaget Skf

Patrice Ribault

Samuel Viault

Helmut Hauck

Nicolas Berruet

Sylvain Bussit

Yves-André Liverato

Richard Corbett

Charles Chambonneau

Norbert Huhn

Ulrich Lang

Marc Alegre

Thomas Fetzer

Aurélien Ghilbert-Simon

The invention provides a tensioning device having a traction element and a body. The traction element includes a first lower portion of the traction element that resides in a tie-rod that is able to interlock with a threaded rod and a second upper portion of traction element that resides in a piston, the first and second portions of traction element being integral in displacement. The traction element is axially moveable in a bore of the body and co-axially mounted around the traction element, the body providing a first lower portion of the body that resides in a tubular support sleeve and a second upper portion of body that resides in a cylinder. An annular chamber is formed between the traction element and the body and intended to receive a pressurized fluid.

Tensioning device for pre-stressing an assembly with a threaded rod

A method for manufacturing at least one synchronizing ring includes providing a rough-turned blank made from a hardenable material that is in a not-hardened state and laser-cutting the rough-turned blank to form the at least one synchronizing ring, the laser cutting being performed with an energy chosen to be sufficient to selectively harden at least a portion of the material in a region along which the laser cutting occurs.

Method for manufacturing a synchronizing ring and program

A vehicle transmission includes a housing part, a shaft extending from the housing part, and a spring element having a plurality of spring windings wound around the shaft, a first end of the spring element being fixed to the housing part. An actuating means is attached to a second end of the spring element and is configured to twist the second end in a circumferential direction of the spring element to thereby cause the spring element to tighten and frictionally contact an outer circumference of the shaft. The spring element is comprised of a hollow cylindrical metal base body having a helical-shaped incision that defines the plurality of spring windings. The incision may be formed in the hollow cylindrical base body by a plasma beam process, by a laser cutting process, by a flame cutting process or by a water jet cutting process.

Device for braking and/or blocking a shaft of a vehicle transmission and method for manufacturing such a device

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Vouvray, France

Patrice Ribault