Low cost hydraulic damper element and method for producing the same

US6418909B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Paul L. Rossi · Waterford, US
• Kenneth O. Jahr · Beverly Hills, US
• William T. Harvey · Brighton, US
• Shari F. Stottler · Honeoye Falls, US
• Kevin A. Grabowski · Brighton, US
• Dewey M. Sims, Jr. · Westland, US
• Helmut Schwegler · Pleidelsheim, DE
• Wolfgang B. Weinbrecht · Pforzheim, DE

Key dates

• Filing date: Nov 24, 1999
• Grant date: Jul 16, 2002
• Expiry date: Nov 24, 2019

Classification

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

Abstract

A hydraulic pressure damper element is manufactured by shaping a stainless steel tube; flattened each end of the tube; and sealing a gas within the tube. Wire retaining devices may also be attached to the ends of the damper in order to support the device within a fuel rail tube in a fuel system.