Fuel consumption meter for internal combustion engines and method
First Claim
1. A device for measuring the consumption of fuel in an internal combustion engine system, the engine system having a plurality of fuel injectors for injecting fuel into an internal combustion engine, a fuel tank containing fuel for feeding the engine, a transfer pump for transferring fuel from the tank into an injection pump for feeding the injectors, and a fuel return line for conducting exceeding fuel from the fuel injectors back to the fuel tank, and a power source for providing energy to the device, whereby the device is autonomous, the device comprising:
- a main body defining a first and a second lobe-shaped flow-measuring chambers;
a first flow meter in said first lobe-shaped flow-measuring chamber and second flow-meter in said second lobe-shaped flow-measuring chamber,wherein the first flow meter comprises a pair of first lobe-shaped rotors rotatably mounted within the first flow-measuring chamber and the second flow meter comprises a pair of second lobe-shaped rotors rotatably mounted within the second flow-measuring chamber, the first flow-measuring chamber having a fuel inlet port and a fuel outlet port connected between the fuel tank and the injection pump and the second flow-measuring chamber having a fuel inlet port connected to the fuel return line, and a fuel outlet port connected to the fuel tank, andat least one first sensor for detecting the rotation of the first lobe-shaped rotors,at least one second sensor for detecting the rotation of the second lobe-shaped rotors.
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Abstract
A device and method for measuring the consumption of fuel in an internal combustion engine system having fuel injectors, the device comprising a main body having two flow-measuring chambers with each chamber including a flow meter wherein one flow meter is located upstream the injectors and another flow meter is located downstream the injectors for calculating the difference between the flow upstream the injectors and downstream the injectors, and whereby the difference is fed to a data processing unit to calculate the real fuel consumption.
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Citations
10 Claims
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1. A device for measuring the consumption of fuel in an internal combustion engine system, the engine system having a plurality of fuel injectors for injecting fuel into an internal combustion engine, a fuel tank containing fuel for feeding the engine, a transfer pump for transferring fuel from the tank into an injection pump for feeding the injectors, and a fuel return line for conducting exceeding fuel from the fuel injectors back to the fuel tank, and a power source for providing energy to the device, whereby the device is autonomous, the device comprising:
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a main body defining a first and a second lobe-shaped flow-measuring chambers; a first flow meter in said first lobe-shaped flow-measuring chamber and second flow-meter in said second lobe-shaped flow-measuring chamber, wherein the first flow meter comprises a pair of first lobe-shaped rotors rotatably mounted within the first flow-measuring chamber and the second flow meter comprises a pair of second lobe-shaped rotors rotatably mounted within the second flow-measuring chamber, the first flow-measuring chamber having a fuel inlet port and a fuel outlet port connected between the fuel tank and the injection pump and the second flow-measuring chamber having a fuel inlet port connected to the fuel return line, and a fuel outlet port connected to the fuel tank, and at least one first sensor for detecting the rotation of the first lobe-shaped rotors, at least one second sensor for detecting the rotation of the second lobe-shaped rotors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification