Mixing device for changing a fluid into another flowing fluid

US6158471A · kind A · utility

Assignee

• Filterwerk Mann & Hummel GmbH · DE

Inventors

• Volker Greif · Harthausen, DE
• Stefan Kochert · Waiblingen, DE
• Klaus Moessinger · Löwenstein, DE
• Bernd Spaeth · Ulm, DE

Key dates

• Filing date: Jul 2, 1999
• Grant date: Dec 12, 2000
• Expiry date: Jul 2, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/87643
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A mixing device is suggested for introducing a fluid into another flowing liquid, especially for use as an oil lubricator. This lubricator consists of an exterior venturi pipe 18 and an interior venturi pipe 16, whereby a feed line 13 ensures the supply of the oil to be mixed into the interior venturi pipe 16. The feed line 13 is connected to the storage tank 28 of the lubricator by means of a butterfly valve 30 and a uptake 29. A control insert 20 is mounted in the ring-shaped cross-section between the interior pipe 16 and the flow channel 18. This has elastic blades in particular, which largely close the circular ring section at lower amounts of throughput of the air, such that even in this operational state, consistently good mixing results of the oil with the air can be guaranteed in interior pipe 16.