Patent · US Active

Vehicle heater

US9290079B2 · kind B2 · utility

3Cited by

15References

20Claims

0Family size

Assignee

EBERSPÄCHER CLIMATE CONTROL SYSTEMS GMBH · DE

Inventors

Andreas Collmer · Leinfelden, DE
Michael Haefner · Stuttgart, DE

Key dates

Filing date	Jul 11, 2012
Grant date	Mar 22, 2016
Priority date	—
Expiry date	Jul 1, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23D2900/21002
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A vehicle heater includes a burner arrangement (12) with a flame tube (16), a heat exchanger housing (18) with a circumferential wall (20), which surrounds the flame tube and thus defines a waste gas backflow space (26) and has a waste gas outlet (38) from the waste gas backflow space. A flow cross section provided between the flame tube and the circumferential wall in a first axial area (33) of the waste gas backflow space is smaller in an outlet area (48) than in an opposite area (50) located opposite the outlet and the flow cross section in the outlet area increases in an expansion area following the first axial area. The flow cross section in a second axial area (35) following the expansion area (52), corresponds essentially to the flow cross section in the opposite area and/or the flow cross section has a stepped increase in the expansion area.

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