Pump for delivering hot, corrosive media

US5569024A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hans-Ulrich Dummersdorf · Leverkusen, DE
• Helmut Waldman · Leverkusen, DE
• Helmut Harle · Leverkusen, DE
• Franz-Rudolf Minz · Dormagen, DE
• Fritz Gestermann · Leverkusen, DE

Key dates

• Filing date: Sep 6, 1995
• Grant date: Oct 29, 1996
• Expiry date: Sep 6, 2015

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04C15/0069
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A pump for delivering hot, corrosive material having a shaft seal comprising a seal gap through which hot gases flow, and wherein the sealing gases also flow around the pump bearings for the purpose of cooling the bearings.