Method of operating a cryogenic cooling device, and a cryogenic cooling device suitable for operation by this method

US5878580A · kind A · utility

Assignee

• Leybold GmBH · DE

Inventors

• Ernst Schilling
• Dieter Sous · Lechenich, DE
• Axel Veit · Pulheim, DE
• Markus Jung · Gießen, DE

Key dates

• Filing date: Oct 20, 1997
• Grant date: Mar 9, 1999
• Expiry date: Oct 20, 2017

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F25B2309/006
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

This invention concerns a method of operating a cryogenic cooling device (1) with a cylinder (4, 5) in which a piston (6, 7) reciprocates and with a gas drive (8, 9) which produces the motion of the piston. In order to reduce the vibrations which occur during operation, the invention proposes that the gas drive (8, 9) is controlled in such a way that the piston (6, 7) is only accelerated for part of the stroke.