Tenneco Gmbh

Heinrich Gillet Gmbh

Rico Weinert

Alexander Schinko

Marcel Womann

Bernd Fuhrmann

Thomas Weidner

Christoph Schneider

Katja Hirschberger

Michael Burkart

Marek Rybarz

Karlheinz Reichling

Marc Sommerfeld

The invention relates to a bearing systemof a flap valveconsisting of a valve shaftwith a valve shaft pivot, and consisting of a separate bearing bodywhich is fastened on the end side to the valve shaft, and of a valve housing wallwhich has a shaft bearingin the form of a depression, the bearing bodybeing guided rotatably in the depression. Here, the bearing bodyhas a recess, into which a separate bearing pieceis inserted, the valve shaftbearing indirectly via the bearing bodyand the bearing pieceagainst the housing-side shaft bearing, the bearing bodyand the bearing piecebeing formed from different metals or different materials.

Mounting of a flap valve shaft

A valve flap device having at least one valve housing having a shaft comprising a bearing surface and a valve axis, the shaft being rotationally supported about the valve axis by means of the bearing surface in the valve housing. A bearing element having a sliding bearing surface, wherein the bearing surface of the shaft contacts the sliding bearing surface. A bearing housing provided on the valve housing, in which the bearing element is supported at least in the radial direction to the valve axis, wherein the bearing element has an outer surface contacting the bearing housing. The support of the shaft is intended to be sufficiently tightly sealed, even for gaseous media, while simultaneously ensuring precise and statically determinate support. To this end, the bearing element is designed as a separate component coupled to the bearing housing about the valve axis with respect to the circumferential direction, such that the relative position between the bearing element and the bearing housing does not change in the circumferential direction when the shaft is rotated.

Valve flap device

A valve flap device for an exhaust system of a motor vehicle, having at least one tubular valve housing with a flow cross section running perpendicular to a central axis and being formed by the inner geometry and a shaft which can turn about a valve axis with a valve flap mounted on the shaft, being mounted in the valve housing to close the flow cross section. The valve flap device can be made with low material input and at the same time with low fabrication expense at low costs. For this, the valve housing is made from a tubular blank of sheet metal with a tube diameter that is calibrated to the flow cross section at least partially by mechanical, plastic forming.

A muffler with variable acoustic properties. A pressure cell with a diaphragm, a spring, a piston, a piston rod, a closing element on the piston rod, and a pressure connection line are integrated into a housing. The diaphragm is thermally insulated against the piston rod. Another layer of thermal insulation is provided between the closing element and the pressure cell.

Muffler with variable acoustic properties

Growing community of inventors

Gommersheim, Germany

Rico Weinert