Daimler Chrysler Ag

Thomas H&uuml;lsberg

Pierre Bonny

Gerd Tiefenbacher

Thorsten Sternal

Helmut Augustin

Holger Nuhn

Hans-J&ouml;rg Kaifel

An apparatus and method of attaching an exhaust manifold to an engine's cylinder head utilizing an oversized hole in the manifold, a stud fastener extending through the oversized hole, a spacer element around the stud fastener, and a nut adapted to be tightened to engage the spacer element and the flange wherein a flat gasket is compressed to a desired extent which is not so excessive that it inhibits sliding movement caused by thermal growth of the manifold.

Fastening an exhaust manifold to an engine cylinder head

A process and apparatus for manufacturing slot-shaped openings on hollow sections is disclosed in which the openings are produced by a piercing cutting operation by means of a blade-type cutting tool by the displacement of material in a cutout-free manner. During the slotting operation, the hollow sections are supported from the inside around the openings to be formed. In order to produce slot-shaped openings in a simple manner while maintaining the shape of the hollow section on arbitrarily constructed hollow sections in a reliable process free of positional tolerances, the hollow section is inserted in a recess of an internal high pressure forming tool. The hollow section is slotted by the interaction of the cutting action of a cutting tool integrated in the internal high pressure forming tool and an internal high pressure generated inside the hollow section.

Process for manufacturing slot-shaped openings on hollow sections and apparatus for implementing same

Growing community of inventors

Buchholz, Germany

Thomas Hülsberg

Growing community of inventors

Buchholz, Germany

Thomas H&uuml;lsberg

Thomas Hülsberg