Burner for a motor vehicle heater
US5299554A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 12, 1992 |
| Grant date | Apr 5, 1994 |
| Priority date | — |
| Expiry date | May 12, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2241/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A space heater for a motor vehicle contains a burner with a combustion air fan. A series resistor (24) is provided for partial load operation. This resistor (24) is arranged in a housing (2, 6) which surrounds the electric motor (4) driving the fan wheel (14) of the combustion air fan (1) and through which combustion air is passed for cooling the electric motor and the resistor (24). The resistor (24) is soldered to a printed circuit board (20) located radially on the housing, downstream of a combustion air passage opening (22) designed as a cutout in the printed circuit board. The printed circuit board preferably carries a sound-absorbing plate (34) with a cutout (36) in the area of the resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.