Displacer for low-temperature refrigerating machines

US4397156A · kind A · utility

Assignee

• Leybold-Heraeus GmbH · DE

Inventors

• Rolf Heisig · Weilerswist, DE
• Hans-Hermann Klein · Hürth, DE
• Karl-Heinz Volker · Titz, DE

Key dates

• Filing date: Oct 21, 1981
• Grant date: Aug 9, 1983
• Expiry date: Oct 21, 2001

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F25J2205/24
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A displacer for low-temperature refrigerating machines having a regenerator disposed in a hollow space of the displacer, wherein the regenerator is formed at least in part of a sintered material, preferably sintered bronze spheres.