Global Patent Index - EP 0413942 A3

EP 0413942 A3 19910807 - HEATING DEVICE

Title (en)

HEATING DEVICE

Publication

EP 0413942 A3 19910807 (DE)

Application

EP 90113243 A 19900711

Priority

DE 3928114 A 19890825

Abstract (en)

[origin: EP0413942A2] A heating device, in particular a vehicle heating device, is indicated, which has an operation control and a combustion air blower, driven by a motor, for combustion air supply to a burner operated by means of fuel. In this connection, an electronic drive device for the combustion air blower is prepared which works in such a manner that the heating capacity produced by the heating device is independent of external disturbance variables such as system voltage fluctuations, bearing friction, pressure losses at the burner and counter-pressure produced by the waste gas or the like. According to one embodiment, the electronic drive device has the effect that a constant voltage is present at the combustion air blower motor so that the speed of the combustion air blower is extensively constant. Alternatively, the electronic drive device can also effect regulation of the electromotive force of the combustion air blower motor to a setpoint predetermined as a desired value.

IPC 1-7

F23N 1/02; F23N 3/08

IPC 8 full level

B60H 1/22 (2006.01); F23N 1/02 (2006.01); F23N 3/08 (2006.01); F24H 3/04 (2006.01)

CPC (source: EP)

F23N 1/022 (2013.01); F23N 3/082 (2013.01); F23N 2233/06 (2020.01); F23N 2233/08 (2020.01); F23N 2241/14 (2020.01)

Citation (search report)

  • [X] DE 2831030 A1 19790201 - LEINFELLNER HELMUT ING
  • [A] FR 2512928 A1 19830318 - WEBASTO WERK BAIER KG W [DE]
  • [X] PATENT ABSTRACTS OF JAPAN vol. 13, no. 223 (M-829)(3571) 24 Mai 1989, & JP-A-1 38518 (NORITSU CO) 08 Februar 1989,
  • [X] PATENT ABSTRACTS OF JAPAN vol. 11, no. 250 (M-616)(2697) 14 August 1987, & JP-A-62 59312 (MATSUSHITA ELECTRIC IND) 16 März 1987,
  • [X] PATENT ABSTRACTS OF JAPAN vol. 9, no. 245 (M-418)(1968) 02 Oktober 1985, & JP-A-60 96829 (ISEKI NOKI) 30 Mai 1985,
  • [X] PATENT ABSTRACTS OF JAPAN vol. 12, no. 272 (M-724)(3119) 28 Juli 1988, & JP-A-63 54518 (NORITSU) 08 März 1988,

Designated contracting state (EPC)

DE FR GB SE

DOCDB simple family (publication)

EP 0413942 A2 19910227; EP 0413942 A3 19910807; DE 3928114 A1 19910228; DE 3928114 C2 19940210; JP H0390431 A 19910416

DOCDB simple family (application)

EP 90113243 A 19900711; DE 3928114 A 19890825; JP 21991490 A 19900821