Baking oven

US6044833A · kind A · utility

Assignee

• Werner & Pfleiderer Lebensmitteltechnik GmbH · DE

Inventors

• Ralf Gebhardt · Dinkelsbühl, DE
• Bernd Dannenhauer · Bogen, DE
• Frank Blümel · Dinkelsbühl, DE

Key dates

• Filing date: Mar 1, 1999
• Grant date: Apr 4, 2000
• Expiry date: Mar 1, 2019

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A21B1/26
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A baking oven comprises a re-circulation air heater which comprises a burner with a combustion chamber and a cross-counterflow heat exchanger disposed downstream thereof. This heat exchanger comprises serpentine heat transfer tubes which are connected to a single flue gas supply channel and a single flue gas discharge channel. The heat exchanger is fixed at only a single fixing spot in each coordinate direction of a Cartesian coordinate system.