Mixing ratio sensor for liquid fuel

Details Mixing ratio sensor for liquid fuel Mixing ratio sensor for liquid fuel

1987-05-26

1989-06-27

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356436, G01N 1506

Patent

active

048432482

ABSTRACT:
A sensor for mixing ratio of liquid fuel comprising, a cylindrical enclosure having both inlet and outlet openings to act as a passage through which a mixing liquid fuel flows. A transparent column concentrically disposed in the enclosure to make the outer surface thereof contact with the liquid fuel, each end of the column is inserted into a ring-shaped wall provided with the inner side of the open end portion of the enclosure. A light emitting diode and a photo diode are provided so as to sandwich the column in the lengthwise direction, so that the light emitted from the former enters the column through its one end and reflects at the boundary of the column and the liquid fuel, and go onto the other end thereof to fall on the latter. A metallic sleeve sealant is provided, one side of which is liquid tightly telescoped into each end of the column, the other side of which is liquid tightly secured to the outer side of the wall to hermetically seal between the liquid fuel and the column.

REFERENCES:
patent: 4247205 (1981-01-01), Typpo
patent: 4671664 (1987-06-01), Fabinski et al.

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