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WO/2011/124582A1 |
An injection valve comprises a nozzle needle (10), which suppresses a metered addition of fluid in a closed position and otherwise allows the metered addition of fluid. The valve further comprises a control chamber (16), which is hydraul...
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WO/2011/119089A1 |
Method for determining a relationship between the opening time for an injector (9) of a cylinder (8) in a combustion engine (1) and the amount of fuel injected by the injector, according to which method: - during a succession of power st...
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WO/2011/113746A1 |
Valve assembly for an injection valve, injection valve and method for assembling a valve assembly of an injection valve. The invention relates to a valve assembly (11) for an injection valve (10) and a method for assembling a valve assem...
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WO/2011/113659A1 |
A device (2) according to the invention for evaluating an injection member (6) which is designed for injecting a fluid medium comprises a measurement chamber (4) having a receiving device for receiving the injection member (6), at least ...
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WO/2011/092042A1 |
The invention relates to a process for selecting a method for determining the injection time of individual injection processes of a fuel injector (2), which can be supplied with pressurized fuel via a feed line (4), comprising the follow...
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WO/2011/078153A1 |
Provided is an abnormality determination device for determining the presence of abnormalities in a plurality of fuel injection valves. The abnormality determination device is provided with a pressure sensor, and an electronic control uni...
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WO/2011/073147A1 |
A method for fuel injector installation in an engine comprises the steps of determining fuel injector parameters specific to a particular fuel injector based on test performance data; associating the fuel injector parameters specific to ...
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WO/2011/073024A1 |
Theoretically, the compensation for a change in temperature of a system for measuring injection processes is achieved simply by means of compensation constants that are, however, prone to error. The invention therefore proposes that heat...
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WO/2011/069717A1 |
The present invention relates to a fuel injection device, comprising a nozzle needle (2), an actuator (3) for actuating the nozzle needle (2), a force sensor (6) for detecting a force applied by the actuator (3), and a control unit (11) ...
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WO/2011/064175A1 |
The invention relates to a classification method for an injector, comprising the following steps: actuating the injector by means of a predefinable test control signal, detecting a quantity of liquid dispensed by the injector on the basi...
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WO/2011/064248A1 |
The invention relates to a classification method for an injector, comprising the following steps: actuating the injector by means of a predefinable test control signal, detecting a quantity of liquid dispensed by the injector on the basi...
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WO/2011/054607A1 |
The control valve assembly, which is preferably associated with a control chamber of a fuel injector, comprises an electromagnetic actuator, which is arranged such that the electromagnetic parameters thereof are varied by the pressure in...
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WO/2011/012982A1 |
A device for measuring the flow rate of a fluid, preferably of a lance (2) of a burner of a gas-turbine plant, is provided with: a lance (2) to be tested, which is traversed, in use, by the fluid and comprises a main body (3) and a termi...
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WO/2011/007772A1 |
In order to make it possible to perform a faster and more reliable diagnosis of an error of a pressure sensor than the prior art by a simple structure and without providing a dedicated circuit for the error analysis or additional compone...
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WO/2010/133424A1 |
A method for localizing faults in a fuel injection system includes performing a plurality of tests, wherein each test generates one or more characteristics, and identifying a fault in the fuel injection system by comparing the characteri...
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WO/2010/133423A1 |
A method according to the invention for measuring a lift movement of an armature in a fuel injector (1) comprises the following steps: Inserting a measuring probe (50) into the fuel injector (1) such that the measuring probe (50) comes i...
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WO/2010/122820A1 |
Provided are a temperature sensor abnormality diagnosis device, a fuel injection control device, and a pressure accumulation-type fuel injection device. The temperature sensor abnormality diagnosis device is capable of diagnosing whether...
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WO/2010/117478A1 |
A flow sensing valve includes a valve housing having an inlet port, an outlet port, and a plurality of flow sensing ports. A valve member, located within the valve housing, is configured to move between an open position and a closed posi...
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WO/2010/054416A1 |
The invention relates to a method for measuring flow paths in valves for liquids and gases, such as fuels, in particular for the determination of the injection rate, wherein the fluid is fed to a measuring device via the injection valve....
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WO/2010/050289A1 |
Disclosed is a pressure sensor diagnosing method for making it possible to diagnose the presence/absence of abnormality with a simple constitution but without providing any dedicated circuit for diagnosing the action of a pressure sensor...
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WO/2010/033441A1 |
The present invention provides a fuel additive composition comprising (a) an alkoxylate detergent, (b) a fatty acid or derivative thereof, or mixtures thereof wherein the additive composition is soluble in the fuel where the fuel is a bl...
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WO/2010/029791A1 |
Provided are a fuel leakage diagnostic device and a fuel leakage diagnosis method with which it is easy to diagnose whether there is leakage of highly compressed fuel from a leak-proof pressurized storage-type fuel delivery device. The f...
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WO/2010/026322A1 |
The invention relates to a device that includes: a first chamber (3) for measuring a constant volume, and in which the fuel is injected; pressure (5a, 5b) and temperature (6) sensors associated with said first chamber (3); and a second m...
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WO/2010/026321A1 |
The method of the invention includes the injection of fuel in a first constant-volume measuring chamber (3) in which the pressure (P) and the temperature (T) are measured, and the partial draining of said first chamber into a second vari...
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WO/2010/004663A1 |
A fuel leakage diagnostic device, which diagnoses fuel leakage in a pressure storage type fuel injection device for a vehicle, distinguishes a fuel deficient state and fuel leakage from each other to improve precision of diagnosis of fue...
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WO/2009/127510A1 |
By measuring the pressure profile over time on the high-pressure side of an injection pump, it is possible to determine the feed volume of the pump without intervention in the injection system.
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WO/2009/086039A2 |
A fuel system has a source of fuel coupled to a plurality of fuel injectors via a fuel rail. The system is operable to estimate a quantity of fuel injected into an internal combustion engine by disabling fuel flow from the source of fuel...
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WO/2009/068963A1 |
An ECU executes a program including: a control to advance or retard the fuel injection timing by a prescribed value; determining whether the torque output variation of an engine exceeds a threshold torque output variation; and determinin...
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WO/2009/044261A2 |
Leakage of fluid in an automobile fuel injector (2) is detected by connecting the injector (2) on one side to a device for feeding a test fluid under pressure and on the other to a chamber (15) containing a contrast fluid different to th...
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WO/2009/040251A1 |
The invention relates to a method for operating an internal combustion engine (10), in particular in motor vehicles, wherein fuel reaches at least one combustion chamber (12) of the internal combustion engine (10) by way of at least one ...
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WO/2009/013117A2 |
The invention relates to a method for operating an internal combustion engine having at least one injection valve (10) which, in the region of an associated cylinder of the internal combustion engine, is mechanically coupled to the cylin...
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WO/2009/010780A1 |
An apparatus and method is described for testing a multi-hole fuel injector nozzle (1). The apparatus comprises mounting means for the multi-hole nozzle (1) and fuel supply means for supplying fuel to the multi-hole nozzle (1). The multi...
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WO/2008/150373A1 |
An injector cleaning system (13) for use with an exhaust treatment device is disclosed. The injector cleaning system may have a supply of injection fluid (64) and an injector (52) configured to receive and inject the injection fluid. The...
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WO/2008/147319A1 |
The present invention relates to a method for identifying a malfunctioning fuel injector (1-6) associated with an individual cylinder of a multicylinder combustion engine (50), comprising an accumulator tank (120). The method comprises t...
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WO/2008/140404A1 |
The invention relates to a method for identifying a malfunctioning fuel injector (150a, 150b, 150c, 15Od, 150e, 15Of) associated with an individual cylinder (Ca, Cb, Cc, Cd, Ce, Cf) of a multicylinder combustion engine (60). The method c...
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WO/2008/140403A1 |
The present invention relates to a method for identifying a malfunctioning fuel injector (150a, 150b, 150c, 150d, 150e, 150f) associated with an individual cylinder (Ca, Cb, Cc, Cd, Ce, Cf) of a multicylinder combustion engine (60). The ...
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WO/2008/108953A1 |
A mechanically actuated electronically controlled unit injector includes an electronically controlled spill valve (22) to precisely control timing of fuel pressurization within a fuel pressurization chamber (17). Cavitation bubbles may b...
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WO/2008/106501A1 |
This invention provides an electric fuel pump tester that allows a technician to simulate the real-life operation of the electrical system of the vehicle, i.e., when the fuel pump is installed. The present invention provides a tester tha...
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WO/2008/101751A1 |
The invention relates to a test device for checking injection components, comprising a control unit, a pressure generating unit (10, 110, 210) selected by the control unit (50, 150, 25), and a test specimen holding unit (40, 140, 240, 34...
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WO/2008/083791A1 |
The invention relates to a measuring device for an injector (1) having a pump device for applying a test fluid to the injector, a base body for retaining an injector, wherein an injection region (12) is provided on the base body for rece...
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WO/2008/078038A2 |
The invention relates to an automotive vehicle including: at least one injector with a spraying opening having a smallest width strictly lower than 1 10 micrometer and with a canal having a discharge coefficient strictly lower than 0.75;...
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WO/2008/025728A2 |
The invention relates to a method for reducing depositions within spray holes. For this purpose, an injector is operated in the so-called seat throttling mode. It is thereby made possible to carry out various cleaning sequences at define...
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WO/2008/022951A1 |
The invention relates to a method for idle stroke control of a fuel injection device, in particular of a piezoelectric injector. Here, the piezoelectric actuator is activated in a targeted fashion by means of a device with a calculated a...
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WO/2007/142741A1 |
A fuel injector (32) for an engine (10) is disclosed. The fuel injector has a plunger (72) disposed within a bore (74), a nozzle member (62), a valve needle (76), a check valve (80), a spill valve (68), and a controller (53). The check v...
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WO/2007/100415A1 |
A valve-testing system (12) for gathering information relating to the operation of a fuel injector (10) includes a fluid-transfer system (20). The fluid-transfer system may include an inlet (34), an outlet (36), a reservoir (42) having a...
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WO/2007/073967A1 |
A test apparatus (10) serves to test cam-driven fuel injection systems (12). It comprises a camshaft (80) which can act on a piston (26) of the fuel injection system (12) at least indirectly via a lever (60). It is proposed that the leve...
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WO/2007/069287A2 |
A gas and liquid detergent mixer for cleaning gas injectors on explosion engines without dismounting, attached to the fuel-feeder system of explosion engines, fuelled by LPG or methane, is used to enable the regulated mixture of fuel gas...
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WO/2007/067102A1 |
Method for determining fuel injection pressure or detecting a discrepancy in the fuel injection process of an internal combustion engine, said engine comprising a camshaft (10) that actuates at least one fuel injector of the engine's fue...
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WO/2007/060055A1 |
Method of measuring the injection quantity and the injection rate of an injection valve for liquids, preferably for liquid fuel, in which the injection valve (3) injects the liquid into a liquid-filled measuring volume (1), wherein the m...
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WO/2007/060061A1 |
The invention relates to a method and device for determining hydraulic leakage rate in liquid-conveying sections, in particular, injection valves of internal combustion engines, wherein the inventive method consists in introducing a liqu...
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