Patent · US Expired

Universal furnace

US4390004A · kind A · utility

1Cited by

6References

7Claims

0Family size

Assignee

Produktutvecklingscentrum i Goteborg · SE

Inventors

Karl Kardos · Mölnlycke, SE
Bertil Mattsson · Robertsfors, SE
Olle Westermark · Falköping, SE

Key dates

Filing date	Jan 7, 1981
Grant date	Jun 28, 1983
Priority date	—
Expiry date	Jan 7, 2001

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF24H3/065
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A furnace for firing with optional fuels and where the substantial heat transfer takes place from air to air, whereby the furnace (1) is provided with double shells, which in the space therebetween present partition members (10) which subdivide the space in at least two zones (2,3) through which air is forced by at least one blower (6) from an inlet at one end of the furnace, via a first one of said zones and thereupon via the second one of said zones to an outlet (5) at the same one end of the furnace, whereby the air is brought carefully to flow around the combustion chamber shell.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.