Damping device

US4679537A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Siegfried Fehrenbach · Markgröningen, DE
• Kurt Herbst · Burgstetten, DE
• Wolfgang Schulz · Wunstorf, DE
• Eberhard Utz · Stuttgart, DE

Key dates

• Filing date: Nov 21, 1985
• Grant date: Jul 14, 1987
• Expiry date: Nov 21, 2005

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M69/54
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A damping device is proposed, which serves to equalize and reduce pressure fluctuations arising in fuel supply systems for internal combustion engines in motor vehicles. The damping device includes a damper element which has at least one damper diaphragm fastened in a damper housing and is arranged to define a fuel chamber which communicates via a feed pipe with a fuel distributor line. The feed pipe is oriented toward a flow tube which communicates with a fuel supply line and protrudes into the fuel distributor line. The fuel chamber of the damper element communicates via a further feed pipe with the fuel distributor line. The feed pipe and the flow tube are axially spaced apart from one another by a distance (A).