Engine-independent motor vehicle heating device with fuel-air ra

Details Engine-independent motor vehicle heating device with fuel-air ra Engine-independent motor vehicle heating device with fuel-air ra

1994-03-31

1995-10-10

Tapolcai, William E.

Heating systems

Automatic control

Heat source is a reverse cycle refrigerating system or heat...

237 123C, G05D 2300

Patent

active

054564085

ABSTRACT:
A motor vehicle heating device which is operable independent of an engine of the motor vehicle and has a burner, a pump or other fuel delivery device for supplying fuel to the burner and an electric motor driven blower by which combustion air is delivered to the burner. In contrast to conventional heating devices in which the fuel-air ratio is set and corrected via a mechanically adjustable bypass screw on the combustion air blower, according to a preferred embodiment of the invention, a correction value is sent to a control device which contains a nonvolatile data storage and a microprocessor; the correction value is stored in the data storage and changes the output signals of the control device to the fuel feed means and/or to the combustion air blower. Thus, adjustment and correction are easily enabled via an electronic change of the speed or cycle frequency of these assemblies, so that mechanical adjustment devices can be omitted.

REFERENCES:
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patent: 4411385 (1983-10-01), Lamkewitz
patent: 4439095 (1984-03-01), Galtz et al.
patent: 4613072 (1986-09-01), Kikuchi et al.
patent: 4852797 (1989-08-01), Goerlich
patent: 4892476 (1990-01-01), Kawamura
patent: 4915615 (1990-04-01), Kawamura et al.
patent: 4946097 (1990-08-01), Kawamura
patent: 5211333 (1993-05-01), Schmalenbach et al.
patent: 5222661 (1993-06-01), Wenhart

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