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WO/2024/061701A1 |
The invention relates to a system and method for determining the value of a flow rate of a liquid in a vehicle engine system, comprising a fluid tank (3), a pump (2), a fluid injector (1), with a fluid flow path from the pump to an injec...
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WO/2023/250182A1 |
Cleaning, maintaining, refurbishing, and/or diagnosing engine components including fuel system components, e.g., such as fuel-injectors. In one embodiment, a method of cleaning a fuel system component is provided. The method includes sup...
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WO/2023/247693A1 |
A fuel supply system (10) is disclosed for supplying a methanol-based fuel from a fuel tank (12) to an internal combustion engine (14). The fuel supply system (10) comprises: a main fuel conduit (16), which fluidly connects the fuel tank...
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WO/2023/202963A1 |
The invention relates to a method for reporting a corrosion problem on a so-called new motor vehicle, said method comprising the following steps: - a step (E0) of monitoring the operating stability; - a step (E1) of determining a referen...
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WO/2023/174612A1 |
The invention relates to a compact high-pressure accumulator (1a; 1b) for testing fuel injection pumps (24), in particular diesel injection pumps (24), comprising an accumulator volume (36), which is designed and provided to receive a fl...
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WO/2023/165273A1 |
A fuel injection device and a parameter calibration method for the fuel injection device. The fuel injection device comprises a first fuel injector (1) and a second fuel injector (2), wherein both the first fuel injector (1) and the seco...
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WO/2023/088755A1 |
A method of testing a non-return valve (77) of an injector valve (44) for a combustion engine. The valve (44) holds a sealing chamber (136) with a plunger piston (58) for forming a compression chamber (74), a one-way valve (70) for fuel ...
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WO/2023/079002A1 |
The disclosure relates to a method for testing a fuel injector for an internal combustion engine, said method comprising: providing a fuel injector having a nozzle outlet; determining a control pulse duration range corresponding to a ran...
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WO/2022/263110A1 |
The invention relates to a fuel injection system (100; 100a; 100b), comprising a plurality of fuel injectors (1), at least one control unit (25, 35), which is designed to at least indirectly control injection elements (2) for injecting f...
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WO/2022/235686A1 |
A pressure-based piston top-dead-center ("TDC") position measurement system is disclosed, comprising: a fuel injector configured to inject fuel into a combustion chamber bounded in part by the piston; and a controller configured to contr...
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WO/2022/221896A1 |
The aim of the invention is to provide a flexible testing assembly comprising a test object (2) at a testing device (3) for performing a test phase of a test sequence on the basis of measured values (M) of the test object (2). This aim i...
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WO/2022/199923A1 |
The invention relates to a device for measuring the injection amount of injection systems (1), more particularly for the functional testing of common-rail injectors, comprising a measurement chamber (4), which is formed by an assembly co...
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WO/2022/052578A1 |
A high-pressure gasoline supply device, comprising a gasoline tank (11) configured to store gasoline; a gas-liquid booster pump (12) communicated with the gasoline tank (11) and an air compressor (19) respectively; a high-pressure accumu...
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WO/2022/051563A1 |
A fuel injector testing machine is provided. The machine includes a head unit having a flow meter, and a fuel injector holding assembly. The head unit and/or the fuel injector holding assembly can be moved relative to each other, allowin...
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WO/2022/017759A1 |
The invention relates to a method for determining a static flow rate of a piezoelectric injector of an injection system (2). The piezoelectric injector (5) comprises a needle and a piezoelectric actuator suitable for controlling the valv...
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WO/2022/012929A1 |
The invention relates to a method for estimating a level of corrosion of an injector of an engine, the engine comprising a reference injector and at least one other injector, each injector comprising a tip fluidically connected to a comb...
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WO/2021/239595A1 |
The invention relates to an ultrasonic measuring arrangement for determining physical properties of a liquid or gaseous test medium (2) inside a high-pressure chamber (1), said arrangement comprising an ultrasonic sensor (3) for external...
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WO/2021/219481A1 |
The device according to the invention for detecting the state of a fuel injector comprises an injector for injecting fuel into an engine combustion chamber, a switch which is formed by an injector housing and an injector nozzle needle an...
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WO/2021/198024A1 |
The invention relates to a needle stroke switch and to a fuel injector having such a needle stroke switch, the needle stroke switch for a fuel injector comprising a seat plate having a plate-like main body and a passage connecting the tw...
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WO/2021/185501A1 |
The invention relates to a method for detecting leaks in fuel injection valves (12) of an internal combustion engine (4) having at least one cylinder (10), said method comprising the following steps: starting the internal combustion engi...
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WO/2021/172382A1 |
An ECU (50) is equipped with: a first acquisition unit for acquiring a dynamic parameter when fuel injection is carried out by a fuel injection valve (30); a second acquisition unit for acquiring an injection amount parameter when fuel i...
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WO/2021/131777A1 |
Provided is a fuel injection control device capable of stabilizing the motion of a movable element and a valve body.　This fuel injection control device controls the fuel injection amount of a fuel injection device provided with: a valv...
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WO/2021/052763A1 |
The invention relates to a method for post-injection diagnostics of an injection system (100), wherein the method comprises the following steps: - controlling an injector (150) during a main injection interval in order to carry out a mai...
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WO/2021/043380A1 |
A method of testing a valve body (22) of an injector valve (10) for liquid gas is provided. The method comprises supplying control oil to a nozzle piston (41) via a control oil channel (30) at a first control oil pressure, which first co...
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WO/2021/028349A1 |
The invention relates to a seat plate for an injector, comprising a plate-shaped main part having a first planar face, a second planar face and an all-around lateral surface interconnecting the two planar faces, an opening, which extends...
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WO/2021/018933A1 |
The invention relates to a method for determining a grade of a fuel, in which method a closing duration of an armature of a solenoid valve, which armature moves through the fuel, is measured for several activation durations in order to o...
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WO/2021/001409A1 |
A system including a fuel injector, the fuel injector including a solenoid controlled actuator, said solenoid controlled actuator including a solenoid coil connected to high side and low side terminals, adapted such that activation of sa...
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WO/2020/260666A1 |
A fuel injector comprises a nozzle (12) with a body (24) defining an internal bore (28) in which a needle (30) is axially moveable and having a spray extremity with injection orifice(s). The needle has an axially symmetrical shaft portio...
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WO/2020/216814A1 |
A common rail assembly (10) comprises a common rail (12) having a tubular body (16) extending along a longitudinal axis (A), an inner longitudinal bore (18) for, in use, containing pressurized fuel, said body comprising a plurality of tr...
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WO/2020/200556A1 |
The invention relates to a method for testing an injector (23) having a storage tank (12) and a high pressure pump (16), wherein a test fluid is conveyed by the high pressure pump (16) into a reservoir (17), having two electrically contr...
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WO/2020/203795A1 |
An injector failure diagnostic device 1 is an injector failure diagnostic device of a multi-cylinder internal combustion engine 2 provided with injectors 21-24 that inject fuel for each cylinder. The injector failure diagnostic device 1 ...
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WO/2020/193795A1 |
Disclosed is a method for determining a drift in the fuel static flow rate of a piezoelectric injector of a motor vehicle heat engine. The method relies on measurements of the fluid pressure performed in the supply chamber of the injecto...
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WO/2020/197051A1 |
The present invention relates to an injector inspection apparatus using mass, the apparatus using a mass flowmeter so as to enable the amount of test oil sprayed from an injector to be measured, and disclosed is the injector inspection a...
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WO/2020/182536A1 |
The invention relates to a method for predicting the condition of an injector (7) in a common rail system, in which method, by using the individual accumulator pressure (pE), a deviation of a reference working point from an actual workin...
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WO/2020/178023A1 |
A cleaning device (100) for cleaning an interior of a device to be cleaned (102), wherein the cleaning device (100) comprises an adapter (104) for mounting the device to be cleaned (102), a cleaning medium reception chamber (106) for rec...
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WO/2020/169191A1 |
Invention relates to a gaseous fuel feeding system (10), comprising a fuel supply line (22) enclosed by a barrier wall system (32,32') such that the fuel supply line (22) comprises a primary flow passage (30,30') for the gaseous fuel and...
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WO/2020/143980A1 |
The invention relates to a control device (2) for electrically controlling injectors (4), in particular fuel injectors, said control device comprising at least one electrical interface (36) which is designed to electrically connect the c...
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WO/2020/143968A1 |
The invention relates to a method for onboard diagnosis in a vehicle with a catalyst and a lambda-controlled internal combustion engine during continuous driving operation, wherein at least one pre-cat lambda sensor is connected upstream...
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WO/2020/115034A1 |
A fuel injector apparatus includes a displacement sensor for the measurement of the displacement of the movable part of a fuel injector relative to the fixed body of the fuel injector. The displacement sensor comprises a light source; a ...
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WO/2020/100485A1 |
The purpose of the present invention is to promote the stabilization of a fuel injection amount of a fuel injection apparatus in which a valve body and a movable iron core are configured to be relatively displaceable. To this end, a cont...
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WO/2020/079050A1 |
The invention relates to an injector for injecting fuel, comprising an injector housing, a movable nozzle needle, which is arranged in the injector housing and has a nozzle needle tip, and a nozzle needle seat for receiving the nozzle ne...
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WO/2020/052891A1 |
The invention relates to a method for controlling fuel metering into an internal combustion engine. By means of a sensor, a signal response is acquired which characterizes the development of pressure in the fuel in an injector over time....
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WO/2020/036870A1 |
The present invention relates to the carbon deposit buildup in the internal combustion engine, or more specifically the removal of such carbon from the induction system, combustion chamber, and the exhaust system. The method is one in wh...
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WO/2020/025262A1 |
A nozzle assembly of a fuel injector comprises a nozzle with a body extending along a main axis, in which a needle (30) is axially moveable between a closed position, in which a first end (34) of said needle rests on a valve seat to prev...
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WO/2020/012011A1 |
The invention describes a method for diagnosing a digital valve in a fuel-injection system. During the diagnosis, a diagnosis current is applied to the digital valve with an intensity and holding time (Dmain) predetermined by experience ...
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WO/2020/011528A1 |
22 DP-324753 TESTING APPARATUS ABSTRACT5 A testing apparatus for a fuel injector for delivering fuel into an internal combustion engine, in use, wherein the fuel injector under test comprises an inlet for receiving fluid to be injected d...
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WO/2019/241866A1 |
The present disclosure relates to a method of testing a unit pump system performance. In one embodiment of the present disclosure, the method of testing a unit pump system performance determines if mechanical and/or electrical stability ...
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WO/2019/232563A1 |
The invention relates to a method for the optical detection of the geometry of a workpiece (1) comprising a cavity (4) and at least one bore (7), characterised by the following steps: A) introducing a source of illumination (12) into the...
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WO/2019/233768A1 |
The invention relates to a method for operating a fuel injector with two coaxially arranged nozzle needles (1, 2) which are guided inside one another and, within a nozzle body (3), define a gas chamber (4) for a gaseous fuel and a liquid...
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WO/2019/222967A1 |
A simulation test apparatus for detecting a nozzle, comprising: an air pressure regulation apparatus, a first valve (100), a second valve (200), a fuel storage apparatus (21), a third valve (300), a pump component (23), a test part (600)...
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