The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2003
Filed:
Jan. 15, 2002
Helmuth Fischer, Remseck, DE;
Peter Frehland, Ditzingen, DE;
Filterwerk Mann & Hummel GmbH, Ludwigsburg, DE;
Abstract
A free-jet centrifuge which, in contrast to prior art centrifuges which are braked by bearing friction, includes a device for braking the rotor when the oil pressure falls below a predetermined value. The rotor is mounted in a slide bearing ( ), which simultaneously forms the centrifuge oil inlet ( ), and also is provided with a roller bearing ( ), which minimize bearing friction and enables the rotor to attain the highest possible rotational speeds. Friction partners ( ) are disposed on the centrifuge housing ( ) and rotor ( ) and are pressed against one another by a spring ( ) when the oil pressure drops below operating pressure, to stop the rotor in order to minimize run-on of the centrifuge and the noise and bearing wear associated with run-on.