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7600417 Ultrasonic-densiometer mass flow sensor for use in flow metering units  
A fuel delivery system uses a volumetric flow sensor and a densiometer to measure a mass flow rate of the fuel. A densiometer may be a coriolis mass flow sensor etched into a small circuit chip. As...
7587931 Apparatus and method for testing fuel flow  
Apparatus and method for testing fuel flow in a return or returnless fuel system. The apparatus comprises a primary flow passage having an inlet for connection to the fuel system for receiving fuel...
7472586 Flow amount measuring device and method therefor  
A measuring body is provided in a fluid path between a pump and a fuel injection valve, a flow amount for which is measured. An inner space of the measuring body is divided into a first and a...
7319929 Method for detecting steady-state and transient air flow conditions for cam-phased engines  
An air flow state determining system that determines a mass air flow into a cylinder of an engine having a cam phaser includes a first module that determines whether an air flow state is one of...
7318342 Method for model-based determination of the fresh air mass flowing into the cylinder combustion chamber of an internal combustion engine during an intake phase  
A method for model-based determination of the total fresh air mass flowing into the cylinder combustion chamber of an internal combustion engine during an intake phase is described. The method...
7302937 Calibration of model-based fuel control for engine start and crank to run transition  
A fuel control system for regulating fuel to cylinders of an internal combustion engine during an engine start and crank-to-run transition includes a first module that determines a plurality of...
7299690 Particulate sampling system and method  
A method for controlling the flow through an exhaust sampling system includes sensing an operating characteristic of a power source, extracting a sample of an exhaust flow of the power source,...
7281440 Particulate sampling system having flow check device  
A particulate sampling system is disclosed. The particulate sampling system may include an exhaust sampling unit and a dilution flow assembly to supply dilution air to the exhaust sampling unit....
7231816 Method and apparatus for continuous measuring of dynamic fluid consumption  
A method and device for continuous measuring of dynamic fluid consumption, particularly gaseous or liquid motor fuel, employs a continuously operating flow sensor with variable decrease in...
7228729 Apparatus and method for testing fuel flow  
Apparatus for testing fuel flow in a return or returnless fuel system. The apparatus comprises a housing, a primary flow passage in the housing having an inlet for connection to the fuel system for...
7114381 Fuel flow rate measuring apparatus for an internal combustion engine  
A fuel flow rate measuring apparatus for an internal combustion engine is capable of achieving cost reduction as well as measuring the flow rate of fuel with high accuracy over an entire fuel flow...
6880390 Fuel meter for outboard engines  
An apparatus and method for determining a parameter related to fuel consumption in an engine are disclosed. An electrical sensor senses an electrical control signal used to control fuel introduced...
6840222 Method and device for monitoring a fuel system of an internal combustion engine  
A device and a method of monitoring a fuel metering system of an internal combustion engine, in particular a common rail system. The fuel is compressed by a pump, and a pressure variable...
6827069 Detection of fuel dynamical steady state  
An engine control system that identifies fuel dynamical steady state (FDSS) includes a cylinder and a controller that determines a detection period. The controller monitors a mass of fuel ingested...
6675641 Closed system transient diesel fuel conditioning and measurement system  
A fuel conditioning and measuring system for testing diesel engines includes a fuel conditioning loop having first and second heat exchangers, one employing a heating medium, and one employing a...
6658926 Method for monitoring slide bearings, especially of a piston engine  
A method is described for monitoring slide bearings ( 10, 6, 9 ), especially of a piston engine, with a forced feed lubrication ( 12 ) comprising a forced-oil line ( 16 ) and branch lines ( 17 )...
6651492 Method and system for controlling partial pressure of air in an intake manifold of an engine  
A method for controlling partial air pressure in an intake manifold of an engine. The engine has an intake throttle device for controlling a flow of air to the intake manifold. An EGR valve is...
6654679 Method, computer program and control system for determining the air mass which is supplied to an internal combustion engine via an intake manifold  
An air mass is supplied to the combustion chambers by an intake manifold ( 12 ) in an internal combustion engine ( 10 ). An underpressure store ( 18 ) of a servo system ( 20 ) can be subjected to...
6513371 Method for determining fuel injection rate shaping current in an engine fuel injection system  
A method for calibrating a fuel injection pump for an engine fuel injection system comprising determining the pressure made available to an injector nozzle at a portion of the injection cycle...
6510731 Method for determining a weak cylinder in an internal combustion engine  
A method for determining a condition of a cylinder in an internal combustion engine having a plurality of cylinders. The method includes the steps of reducing an amount of power being generated by...
6457353 Apparatus of diagnosing an internal combustion engine and a method of diagnosing of an internal combustion engine  
By employing command value signals for controlling the opening timing of an exhaust valve or an intake valve and means for measuring flow rates of an intake air of a flow direction which flows...
6367316 Real-time mass flow measurement  
A real-time mass flow measurement system that accurately measures fuel mass delivered to each cylinder per stroke of an injection pump or a fuel injector in an internal combustion engine. In...
6314801 Engine economizing vehicle shifting system and method  
A system and associated method of economizing engine operation by automatically shifting the transmission of a motorized vehicle into a neutral gear from a drive gear when specific, predetermined...
6230558 Apparatus and method for measuring fuel flow rate and residual fuel quantity and for controlling evaporated fuel  
A residual fuel quantity measuring device for automobiles has a fuel flow rate sensor provided in a filler neck of a fuel tank for measuring the flow rate of liquid fuel supplied to a fuel tank. A...
6163254 Method of avoiding low cycle fatigue failure of turbochargers  
A method of avoiding low cycle fatigue failure of a turbocharger for an internal combustion engine having an electronic control module comprising the steps of: counting the number of cycles the...
6131445 Fuel tank sensor assembly  
A fuel tank sensor assembly for an automotive fuel tank includes a sensor element mounted below a shear plane of the sensor assembly. In the event that a portion of the assembly is sheared off, the...
6119512 Method of determining a fuel tank vapor flow rate  
A method is provided for accommodating the purge vapors from an evaporative emission control system of an automotive vehicle. The method includes a means of learning the flow rate of purge vapors...
6082187 Method for detecting a power loss condition of a reciprocating internal combustion engine  
A method for detecting a power loss condition of an internal combustion engine, the engine having at least one cylinder and a crank shaft, the method including the steps of sensing rotational crank...
6053036 Fuel supply amount control system for internal combustion engines  
An fuel supply amount control system for an internal combustion engine comprises an evaporative fuel passage extending between the fuel tank and the intake system of the engine, and a control valve...
5945596 Method and device for monitoring a fuel-metering system  
A method and a device for monitoring a fuel-metering system, in particular a common-rail system for a diesel fuel engine. A defect is recognized on the basis of an output signal from a...
5913239 Mass flow measurement device  
A gas mass flow sensor for sensing the flow of a gas to an internal combustion engine including a main flow passage having an inlet and an outlet for directing a gas flow to the internal combustion...
5868116 White smoke reduction apparatus and method  
An apparatus and method for reducing white smoke during start up of a compression ignition engine is disclosed. The apparatus includes an engine cylinder, a fuel injector, an engine speed sensor,...
5795998 Flow sensor and fuel control system  
Disclosed is a flow sensor comprising a cylinder and a piston movable within the cylinder and dividing the cylinder into first and second chambers. The first chamber communicates with an inlet and...
5708201 Fuel delivery measurement system with automatic pump matching  
A vehicular fuel flow measuring system derives a value for the consumption of fuel by an internal combustion engine operated with fuel from a tank containing a source thereof. The engine has a fuel...
5616837 Fuel line pressure test  
A method for testing fuel line integrity and flow volume in a fuel injected internal combustion engine includes the steps of turning on a fuel pump connected to a fuel supply line with the engine's...
5386721 Diagnostic tool  
The diagnostic of the class described has a tank for holding an auxiliary fuel supply. A fuel pump is mounted in the tank. The fuel pump is provided with a fuel inlet and a fuel outlet. A conduit...
5226311 Fluid flow generating apparatus  
Apparatus for generating a precision fluid flow comprises a cylinder having side and end walls forming a fluid-receiving chamber having a fluid inlet and a fluid outlet. A cylindrical piston free...
5203204 Flow regulating apparatus and flow measuring apparatus for porous hydrostatic bearing  
A flow regulating apparatus for a porous hydrostatic bearing includes a measuring device for measuring a flow of injected gas through a bearing surface of the hydrostatic bearing to be regulated, a...
4745800 Process and device for flow measurement  
In a process for measuring the flow of fluids that are subject to temperature changes, particularly for measuring the fuel consumption of an internalcombustion engine with fuel injection, the...
4590796 Apparatus and method for pulsation damping and flow measurement in liquid fuel system  
An apparatus and method are disclosed for reducing flow pulsations and measuring fuel flow in a fuel system for a liquid fuel engine. The engine (54) has associated with it a fuel tank (30) and a...
4578996 Gas-flow measuring apparatus and method  
A gas-flow measuring apparatus and method providing an accurate measurement of the gas-flow in, for example, an internal combustion engine. The quantity of the gas-flow is measured with a measuring...
4501140 Fuel injection rate deducing system for a diesel engine  
A fuel injection rate deducing system for a diesel engine includes a fuel injection pump and a fuel feed pump. The injection pump has an inlet, an outlet, and an overflow outlet. The outlet is...
4479465 Fuel-measuring flow system for diesel engines  
A fuel-measuring flow system for diesel engines that provides a continuous metered flow of fuel from the storage tank to the operating engine, wherein a flow meter defined by a transducer having a...
4459845 Methods for determining rate of fuel flow to an engine  
Methods for determining rate of fuel flow to a combustion engine is disclosed. The fuel flow rate determination is made by measuring a pertubation in air-to-fuel-flow ratio to the engine, or in the...
4446727 Method for integrating fuel consumption amount of vehicles  
In a vehicle provided with a turbine-type fuel flow meter for detecting the flow rate of fuel supplied to a carburetor of an internal combustion engine, a method for integrating the amount of fuel...
4404847 Fuel supply conditioning and flow measurement circuit  
A fluid conditioning and flow measurement circuit (10) for testing a fuel injection apparatus (12,20). The circuit (10) has a reservoir (58) communicating with a pump (22) which supplies fuel to...
4362052 Flowmeter  
A flowmeter comprising a piston and cylinder arrangement and measuring means arranged to measure the distance through which the piston moves as fluid flows into the arrangement, in which...
4304125 Method and apparatus for measuring fuel flow  
A fuel flow rate measuring system including an inlet (30) for receipt of liquid fuel, a flow meter (34) connected to the inlet for measuring and indicating fuel flow, and an outlet (44) for...
4275695 Device for determining a fuel metering signal for an internal combustion engine  
A device is proposed for determining a fuel metering signal for an internal combustion engine comprising a tachometer, a load detector, as well as a storage element and a summing member. The load...
4224823 Fuel system flow process  
A de-aerated aqueous solution having a short foam decay period is employed as a test fluid in a fuel system flow process. To minimize corrosion after testing, the solution is removed from the fuel...
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