Piston-cylinder unit

US8286545B2 · kind B2 · utility

Assignee

• Stabilus GmbH · DE

Inventors

• Marian Bochen · Eitelborn, DE
• Thomas Ehre · Koblenz, DE

Key dates

• Filing date: Jan 15, 2009
• Grant date: Oct 16, 2012
• Expiry date: Dec 5, 2030

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F9/3292
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A piston-cylinder unit for pivoting a flap with respect to a motor vehicle body includes a cylinder having an open end with a seal, a closed end, and an interior space between the ends; a piston unit axially movable in the cylinder, the piston unit dividing the interior space into a first working space and a second working space; a piston rod connected to the piston unit and extending through the first working space and the seal; and flow connections connecting the first working space to the second working space. A switch element arranged outside the cylinder is switched in response to movement of the piston with respect to the cylinder.