Process and an apparatus for the adjustment or maintenance of a refrigerated atmosphere

US4833892A · kind A · utility

Assignee

• Franz Welz Internationale Transporte Gesellschaft mit beschrankter Haftung CNT ATX COD 03 · AT

Inventors

• Rudiger Wassibauer · Puch, AT
• Werner Russ · Flörsheim, DE

Key dates

• Filing date: Feb 17, 1987
• Grant date: May 30, 1989
• Expiry date: Feb 17, 2007

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F25D17/042
• WIPO field: Food chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process and an apparatus for the adjustment of maintenance of a refrigerated atmosphere, in particular an atmosphere adjusted to goods stored in a refrigerating tank, in particular a refrigerating container, with the refrigerating requirement exclusively covered by the introduction of cold nitrogen from a supply of liquid nitrogen. PA2 According to the invention, the normally immobile atmosphere is forcibly circulated in arbitrarily selected time intervals or in time intervals determined by measured operating parameters (T, CO.sub.2 content, O.sub.2 content, humidity) during time intervals which are predetermined or determined by measured operating parameters. The temporary circulation of the atmosphere is effected by means of a blower actuated by a control means.