Fuel filter with clean water outlet

US7553415B2 · kind B2 · utility

Assignee

• Hengst GmbH & Co. KG · DE

Inventors

• Guido Stoehr · Sassenberg, DE
• Ludger Schachtrup · Hachenburg, DE

Key dates

• Filing date: Mar 18, 2005
• Grant date: Jun 30, 2009
• Expiry date: Sep 4, 2026

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M37/42
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for measuring and controlling the circulation of fluids in endoscope channels that includes placing at least one endoscope into a tank. Further, one or more inlet channels of the endoscope are coupled to one or more valves with connectors, saturating the tank and inlet channels with a fluid from at least one fluid supply in fluid communication with at least one circulation pump. Further still, at least one hermetic chamber having a known volume and the one or more valves, such that the hermetic chamber and valves are completely filled with the fluid. Controlling the fluid flow within the hermetic chamber with at least one controller, wherein the controller controls and records the emptying with one or more sensors detecting a high level and a low level of the fluid, and verifies the known fluid volume and flow rate from the recorded emptying of the hermetic chamber.