Filling level sensor
First Claim
Patent Images
1. A fluid level sensor for use with an automobile fuel tank comprising:
- (a) a first lever arm-pivotally mounted within the fuel tank and having a float element attached to one end thereof to effect rotation of the lever arm by changes in the fluid level;
(b) a second lever arm pivotally mounted within the fuel tank and having one end in contact with the bottom wall of the tank to effect rotation of the lever arm by changes in the position of the bottom wall;
(c) a magnet operably associated with each of the first and second lever arms, the magnets being oriented and positioned with respect to each other to produce a combined magnetic field representative of the level of fuel; and
(d) a magnetic field sensor-positioned to sense the combined magnetic field.
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Accused Products
Abstract
A filling level sensor (2) for a fuel container (1) of a motor vehicle has two lever arms (4, 5). One of the lever arms (4) supports a float (10), while the other lever arm (5) is prestressed against the bottom of the fuel container (1). A detecting device (6) for detecting the filling level in the fuel container (1) determines the difference between the positions of the lever arms (4, 5). The detection of the filling level in the fuel container (1) is hereby rendered very accurate.
33 Citations
6 Claims
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1. A fluid level sensor for use with an automobile fuel tank comprising:
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(a) a first lever arm-pivotally mounted within the fuel tank and having a float element attached to one end thereof to effect rotation of the lever arm by changes in the fluid level;
(b) a second lever arm pivotally mounted within the fuel tank and having one end in contact with the bottom wall of the tank to effect rotation of the lever arm by changes in the position of the bottom wall;
(c) a magnet operably associated with each of the first and second lever arms, the magnets being oriented and positioned with respect to each other to produce a combined magnetic field representative of the level of fuel; and
(d) a magnetic field sensor-positioned to sense the combined magnetic field. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification