Open-end spinning device with an aerostatic axial bearing for a spinning rotor, an aerostatic axial bearing and a process for manufacturing an aerostatic axial bearing

US7765783B2 · kind B2 · utility

Assignee

• Rieter Ingolstadt Spinnereimaschinenbau AG · DE

Inventors

• Edmund Schuller · Ingolstadt, DE
• Manfred Knabel · Ingolstadt, DE

Key dates

• Filing date: Nov 27, 2007
• Grant date: Aug 3, 2010
• Expiry date: Sep 15, 2028

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2340/18
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

An open-end spinning device (1) with a spinning rotor (2) whose shaft end (11) is supported by an aerostatic axial bearing (10) with an air gap (18) located between a bearing plate (17) of the axial bearing (10) and the shaft end (11). The aerostatic axial bearing (10) comprises a bearing plate (17) and a throttle device (19) made from a porous graphite material placed before the bearing plate (17). The throttle device (19) is an stamped pressed, tablet-shaped molding with largely homogenous porosity. In a process for manufacturing an aerostatic axial bearing (10) for a spinning rotor (2) of an open-end spinning device (1), a throttle device (19) made from a porous graphite material is placed before the axial bearing (10). The throttle device (19) is stamped pressed in a press tool as a tablet-shaped molding.