Patent · US Active

Cast iron or aluminum sectional boiler

US8869752B2 · kind B2 · utility

2Cited by

9References

18Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Rainer Rausch · Alsfeld, DE
Gerhard Jung · Delmenhorst, DE
Holger Henrich · Biebertal, DE

Key dates

Filing date	Aug 12, 2009
Grant date	Oct 28, 2014
Priority date	—
Expiry date	Jul 7, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B30/00
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A cast iron or aluminum sectional boiler has essentially annular sections, one front section, one rear section and at least one center section being provided which form a furnace chamber having essentially surrounding heating gas passages, and their annular water compartments are connected to one another via hubs. The sections have one return connection piece and one feed connection piece, one flue spigot as well as at least two anchor rods for holding the section block together. Annular gaps are provided as heating gas passages between each two adjacent sections, and that the heating gas passages are subdivided into a primary section and a secondary section.

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