Device for measuring the level of a fluid in a fuel tank of a motor vehicle
First Claim
1. In a device for measuring the level of a fluid in a fuel tank of a motor vehicle, the fuel tank including a sound guide conduit disposed in the fuel tank, a fluid feeding device in the fuel tank, and at least one ultrasonic transducer disposed near one end of the sound guide conduit for generating ultrasonic pulses and for receiving the ultrasonic pulses reflected in the region of the surface of the fluid in the fuel tank, the improvement wherein the sound guide conduit and the ultrasonic transducer are disposed in the fuel tank (1) on an outer circumference of the fluid feeding device (6), wherein the sound guide conduit (2) comprises a horizontal or oblique forward-flow region (11) disposed near the fuel tank bottom (12).
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Accused Products
Abstract
A device for measuring the level of a fluid in a container by means of a sound guide tube and an ultrasonic transducer disposed inside the container mounted in a fluid feeding device within the container.
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Citations
18 Claims
- 1. In a device for measuring the level of a fluid in a fuel tank of a motor vehicle, the fuel tank including a sound guide conduit disposed in the fuel tank, a fluid feeding device in the fuel tank, and at least one ultrasonic transducer disposed near one end of the sound guide conduit for generating ultrasonic pulses and for receiving the ultrasonic pulses reflected in the region of the surface of the fluid in the fuel tank, the improvement wherein the sound guide conduit and the ultrasonic transducer are disposed in the fuel tank (1) on an outer circumference of the fluid feeding device (6), wherein the sound guide conduit (2) comprises a horizontal or oblique forward-flow region (11) disposed near the fuel tank bottom (12).
- 10. In a device for measuring the level of a fluid in a container, the container including a sound guide conduit disposed in the container, a fluid feeding device in the container, and at least one ultrasonic transducer disposed near one end of the sound guide conduit for generating ultrasonic pulses and for receiving the ultrasonic pulses reflected in the region of the surface of the fluid in the container, the improvement wherein the sound guide conduit and the ultrasonic transducer are disposed in the container (1) on an outer circumference of the fluid feeding device (6), wherein the sound guide conduit (2) comprises a horizontal or oblique forward-flow region (11) disposed near the container bottom (12).
Specification