Method and arrangement for checking the operability of a tank-venting system

US5890474A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Eberhard Schnaibel · Hemmingen, DE
• Helmut Schwegler · Pleidelsheim, DE
• Ulrich Kuhn · Renningen, DE
• Werner Krauss · Hamburg, DE
• Thorsten Fritz · Gaggenau, DE
• Andreas Blumenstock · Ludwigsburg, DE
• Stephan Uhl · Friedrichshafen, DE
• Michael Nicolaou · Ober-Ramstadt, DE
• Lutz Reuschenbach · Stuttgart, DE
• Georg Mallebrein · Stuttgart, DE
• Michael Hermann · Tacherting, DE

Key dates

• Filing date: Jul 25, 1997
• Grant date: Apr 6, 1999
• Expiry date: Jul 25, 2017

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M25/0818
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The invention is directed to a method and arrangement for checking the operability of a vessel. Pressure is introduced into the vessel utilizing a pressure source having operating variables which vary during operation of the pressure source. These operating variables are detected while the pressure is introduced into the vessel and a conclusion as to a presence of a leak in the vessel is drawn from the operating variables. By utilizing the operating variables, a statement as precise as possible is provided as to the presence of the leak with as little additional equipment as possible.