Motor pump with expansion tank

US6986640B2 · kind B2 · utility

Assignees

• Oliver Laing · DE
• Karsten Laing · DE
• Birger Laing · DE

Inventor

• Karsten Laing · Althütte, DE

Key dates

• Filing date: May 20, 2002
• Grant date: Jan 17, 2006
• Expiry date: Aug 20, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04D29/426
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A pump particularly adapted for use in a closed fluid circuit, as within its housing a resiliently compressible chamber in contact with the fluid being conveyed by the pump so that any pressure change within the fluid caused by temperature variations can be volumetrically absorbed by compression or extension of the chamber.