Damper element

US4615320A · 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: May 15, 1984
• Grant date: Oct 7, 1986
• Expiry date: May 15, 2004

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M2200/315
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A damper element is proposed which serves to damp a pulsating fluid flow, and in particular to smooth out and reduce pressure fluctuations arising in fuel supply systems for internal combustion engines in motor vehicles. The damper element includes at least one damper diaphragm which is fastened in a damper housing and defines a fluid chamber on one side. A connection fitting is disposed on the damper housing and is inserted into a plug connection of a fluid flow cross section. A flow opening is embodied in the fluid flow cross section, being open toward the fluid chamber and toward the fluid flow cross section. The flow opening and the fluid flow cross section are penetrated by a flow tube arranged to protrude therethrough, and into which a first fluid line, which discharges into the fluid chamber, is embodied. Between the flow tube and the wall of the flow opening, an annular, second fluid line is embodied.