Refrigerator with pneumatic and working gas-supply control

US4475345A · kind A · utility

Assignee

• Leybold-Heraeus GmbH · DE

Inventors

• Hans-Joachim Forth · Neunburg vorm Wald, DE
• Rolf Heisig · Weilerswist, DE

Key dates

• Filing date: Jul 23, 1982
• Grant date: Oct 9, 1984
• Expiry date: Jul 23, 2002

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F25B9/14
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A refrigerator has a cold producer with a pneumatically-operated displacer for displacing a working, cold-producing gas. The pneumatic and working gas-supply control is separate from the cold producer and connected thereto by tubes having volumes less than the maximum volumes of the portions of the chamber supplied thereby.