Process for determining the fuel consumption or the operating status of combustion engines
First Claim
1. A process for determining at least one of fuel consumption and operating status of combustion engines having a fuel injection pump, a supply line connecting a fuel supply container and the fuel injection pump, and a return line connecting the fuel injection pump and the fuel supply container, said process comprising the steps of:
- providing a measuring device in the supply line and a measuring device in the return line for recording a flowing fuel volume in the supply line and in the return line, the measuring device in the supply line and the measuring device in the return line each having a signal emitter or sensor sending signals that are allocated respectively to the measuring device in the supply line and to the measuring device in the return line, the measuring device in the return line having at least two signal emitters or sensors;
emitting signals from the measuring device in the return line that are a function of respective forward and reverse flow directions;
supplying the signals obtained from the forward and reverse flow directions to a signal selector;
adding the signals from respective equivalent flow directions;
subtracting the signals obtained from one flow direction from the signals obtained from another flow direction to form a signal difference; and
using the signal difference thus obtained for fuel consumption counting or display.
1 Assignment
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Accused Products
Abstract
A process for determining the fuel consumption or operating status of combustion engines having a fuel injection pump, a supply line connecting a fuel supply container to the fuel injection pump, and a return line connecting the fuel injection pump to the fuel supply container. Measuring devices are provided in each of the supply and return lines for recording flowing fuel volumes in the supply and return lines. The measuring devices each having a signal emitter or sensor sensing signals that are allocated respectively to the measuring devices. The measuring device in the return line includes at least two signal emitters or sensors. Signals are emitted from the measuring device in the return line that are a function of respective forward and reverse flow directions, which signals are supplied to a signal selector. The signals from respective equivalent flow directions are added, and the signals obtained from one flow direction are subtracted from the signals obtained from another flow direction to form a signal difference, which may be used for fuel consumption counting or display.
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Citations
12 Claims
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1. A process for determining at least one of fuel consumption and operating status of combustion engines having a fuel injection pump, a supply line connecting a fuel supply container and the fuel injection pump, and a return line connecting the fuel injection pump and the fuel supply container, said process comprising the steps of:
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providing a measuring device in the supply line and a measuring device in the return line for recording a flowing fuel volume in the supply line and in the return line, the measuring device in the supply line and the measuring device in the return line each having a signal emitter or sensor sending signals that are allocated respectively to the measuring device in the supply line and to the measuring device in the return line, the measuring device in the return line having at least two signal emitters or sensors;
emitting signals from the measuring device in the return line that are a function of respective forward and reverse flow directions;
supplying the signals obtained from the forward and reverse flow directions to a signal selector;
adding the signals from respective equivalent flow directions;
subtracting the signals obtained from one flow direction from the signals obtained from another flow direction to form a signal difference; and
using the signal difference thus obtained for fuel consumption counting or display. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A process for determining fuel consumption and operating status of combustion engines having a fuel injection pump, a supply line connecting a fuel supply container and the fuel injection pump, and a return line connecting the fuel injection pump and the fuel supply container, said process comprising the steps of:
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providing a measuring device in the supply line and a measuring device in the return line for recording a flowing fuel volume in the supply line and in the return line, the measuring device in the supply line and the measuring device in the return line each having a signal emitter or sensor sending signals that are allocated respectively to the measuring device in the supply line and to the measuring device in the return line, the measuring device in the return line having at least two signal emitters or sensors;
emitting signals from the measuring device in the return line that are a function of respective forward and reverse flow directions;
supplying the signals obtained from the forward and reverse flow directions to a signal selector;
adding the signals from respective equivalent flow directions;
subtracting the signals obtained from one flow direction from the signals obtained from another flow direction to form a signal difference; and
using the signal difference thus obtained for fuel consumption counting or display. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification
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- Resources
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Current AssigneeKräutler GmbH & Co.
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Original AssigneeKräutler GmbH & Co.
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InventorsFlauger, Thomas, Feierle, Karl-Heinz, Grabher, Reinhard
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Primary Examiner(s)Fuller, Benjamin R.
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Assistant Examiner(s)STEVENS, MAURICE E
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Application NumberUS09/205,937Time in Patent Office1,047 DaysField of Search123/25.J, 123/446, 123/357, 731/13, 731/14, 731/181US Class Current73/114.54CPC Class CodesG01F 9/001 with electric, electro-mech...
