System for detecting remaining amount of liquid in tank
First Claim
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1. A system for detecting a remaining amount of liquid in a tank, comprising:
- a float which produces a displacement with a level of liquid;
a sensor part mounted to the tank at a position above a bottom thereof, the sensor part sensing the remaining amount of liquid in accordance with the displacement of the float; and
a displacement transmitting part which transmits the displacement of the float to the sensor part, the displacement transmitting part comprising a support member mounted to the bottom of the tank, an arm having a base end mounted to the support member and a front end mounted to the float, and a link mechanism which couples the sensor part and the base end of the arm.
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Abstract
A liquid remaining-amount detecting system includes a displacement transmitting part for transmitting displacement of a float to a rotation-angle sensor and including a bracket mounted to the bottom of a tank, an arm having a base end mounted to the bracket and a front end mounted to the float, and a link mechanism for coupling the rotation-angle sensor and the base end of the arm. The link mechanism serves to cancel displacement of the float resulting from vertical displacement of the bottom of the tank.
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Citations
10 Claims
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1. A system for detecting a remaining amount of liquid in a tank, comprising:
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a float which produces a displacement with a level of liquid;
a sensor part mounted to the tank at a position above a bottom thereof, the sensor part sensing the remaining amount of liquid in accordance with the displacement of the float; and
a displacement transmitting part which transmits the displacement of the float to the sensor part, the displacement transmitting part comprising a support member mounted to the bottom of the tank, an arm having a base end mounted to the support member and a front end mounted to the float, and a link mechanism which couples the sensor part and the base end of the arm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for detecting a remaining amount of liquid in a tank, comprising:
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a float which produces a displacement with a level of liquid;
a sensor part mounted to the tank at a position above a bottom thereof, the sensor part sensing the remaining amount of liquid in accordance with the displacement of the float;
a displacement transmitting part which transmits the displacement of the float to the sensor part, the displacement transmitting part comprising a support member mounted to the bottom of the tank, an arm having a base end mounted to the support member and a front end mounted to the float, and a link mechanism which couples the sensor part and the base end of the arm, the link mechanism canceling the displacement of the float resulting from a vertical displacement of the bottom of the tank;
a sensor casing arranged in the tank to hermetically be isolated from liquid therein, the sensor casing accommodating the sensor part; and
a non-contact coupling which couples the link mechanism and the sensor part in the sensor casing.
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10. An arrangement, comprising:
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a tank having a remaining amount of liquid;
a float which produces a displacement with a level of liquid;
a sensor part mounted to the tank at a position above a bottom thereof, the sensor part sensing the remaining amount of liquid in accordance with the displacement of the float; and
a displacement transmitting part which transmits the displacement of the float to the sensor part, the displacement transmitting part comprising a support member mounted to the bottom of the tank, an arm having a base end mounted to the support member and a front end mounted to the float, and a link mechanism which couples the sensor part and the base end of the arm, the link mechanism canceling the displacement of the float resulting from a vertical displacement of the bottom of the tank.
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Specification