Eccentric toothed rotor set having planetary gears on the inner rotor

US6695603B2 · kind B2 · utility

Assignee

• GKN Sinter Metals, LLC · DE

Inventors

• Josef Bachmann · Obersinn, DE
• Eberhard Ernst · Linz, AT

Key dates

• Filing date: Sep 4, 2002
• Grant date: Feb 24, 2004
• Expiry date: Sep 4, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04C2/10
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The invention is related to a toothed rotor set for a pump or engine consisting of a rotating outer rotor, which has an approximately star-shaped bore. The bore has a fine inner tooth system and an inner rotor aligned eccentrically inside it. The inner rotor has oil pockets for planetary gears. The planetary gears also have a fine tooth system with the help of which they roll on the fine teeth of the outer rotor. The planetary gears thus build a tooth system that translates into an outer tooth system. The outer tooth system has one tooth less than the inner tooth system of the outer rotor.