Adjusting actuation operated by pressure medium

US4215625A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Rudiger Hoffmann · Sindelfingen, DE
• Dieter Feichtiger · Aidlingen, DE

Key dates

• Filing date: Sep 7, 1977
• Grant date: Aug 5, 1980
• Expiry date: Sep 7, 1997

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F15B15/10
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An adjusting drive operated by a pressure medium with a spring-loaded roller diaphragm secured to plates and displaceable within a housing by the pressure medium; the roller diaphragm actuates an adjusting member that is securely connected with a plate and extends out of the housing; in addition to its end positions, the adjusting member is also able to assume at least one intermediate position; the plates are thereby connected with each other by the roller diaphragm while a plate not directly connected with the adjusting member sealingly rests on a ring-shaped abutment projecting out of the inner wall of the housing in the intermediate position of the adjusting member.