Vane motor

US11448071B2 · kind B2 · utility

Assignee

• J. D. Neuhaus Holding GmbH & Co. KG · DE

Inventors

• Ewald Sawitzki · Bochum, DE
• Simon Brose · Hattingen, DE

Key dates

• Filing date: Jan 30, 2019
• Grant date: Sep 20, 2022
• Expiry date: Mar 9, 2039

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04C2240/603
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A vane motor with a rotor body driven by compressed air having vane gaps for radially movable vanes and a rotor shaft for rotatably bearing the rotor body relative to a motor bushing. A method for lubricating a vane motor that ensures particularly long, low-service operation is provided. The rotor shaft is configured as a hollow shaft with a first lubricant reservoir in the interior. The first lubricant reservoir has a lubricant filling opening accessible from the outside of the vane motor. The first lubricant reservoir is connected by at least one radial lubricant hole to at least one further lubricant reservoir arranged in a section of the rotor body between two vane gaps, and/or is connected to an outlet opening arranged in one of the vane gaps for supplying lubricant into the vane gap.