Internal-combustion engines – Charge forming device – Heating of combustible mixture
Patent
1987-03-31
1988-12-27
Wolfe, Willis R.
Internal-combustion engines
Charge forming device
Heating of combustible mixture
123549, F02M 3112
Patent
active
047933178
ABSTRACT:
The invention relates to a method and to apparatus for liquefying fuels for compression ignition engines and for heating installations, with the apparatus being designed to prevent filters becoming clogged with paraffin crystals and also to unclog such filters by projecting streamlines of very hot fuel (up to 70.degree. C.) thereon. The apparatus comprises one or more electrical heater resistances (18) of the extra flat circuit type formed on an electrically-insulating support (17) and then coated with an electrically-insulating coating, said resistances being placed in one or more chambers (1) which are of small volume relative to the volume of the filter and which are situated immediately upstream from the filter elements. The apparatus is such that the fuel follows an approximately U-shaped path around the heater element. An electrical temperature sensor (19) is immersed in the flow of fuel. This sensor is a low current sensor and its resistance varies as a function of temperature. It is a semi-conductor having a positive or negative temperature coefficient, or a transistor, and it is connected to a temperature threshold-detection circuit constituted by a Wheatstone bridge followed by an analog comparator. The circuit is also provided with electrical protection means against mis-connections or current surges.
REFERENCES:
patent: 2782289 (1957-02-01), Nathanson
patent: 3933135 (1976-01-01), Zillman et al.
patent: 4280452 (1981-07-01), Kawamura et al.
patent: 4473054 (1984-09-01), Marcoux et al.
patent: 4501255 (1985-02-01), Ploeg et al.
patent: 4539108 (1985-09-01), Izutani et al.
patent: 4600825 (1986-07-01), Blazejovsky
INOTEC, Societe A Responsabilite Limitee
Macy M.
Wolfe Willis R.
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