Radial oscillating motor

US6181034A · kind A · utility

Assignee

• PNP Luftfeder systeme GmbH · DE

Inventors

• Klaus T. Reichel · Augsburg, DE
• Stefan Beetz · Barnin, DE

Key dates

• Filing date: Mar 9, 2000
• Grant date: Jan 30, 2001
• Expiry date: Mar 9, 2020

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F15B15/149
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

Radial oscillating motors are generally fitted with an outer overflow oil line in order to protect sealing elements. This requires an over large amount of devices and system expenditure. Large amounts of installation space are also required for oscillating motors of this kind. The invention provides a radial oscillating motor wherein each bearing (29) is hydraulically connected to a discharge chamber (14) via a main duct (30) in addition to radial ducts (31, 15, 16, 35, 37, 38) and axial ducts (32, 36) in a driven shaft (7). A non-return valve opening out in the direction of the discharge chamber (14) is inserted into the ducts (31, 32, 37, 38).