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公开(公告)号：US11608805B2
公开(公告)日：2023-03-21
申请号：US16632527
申请日：2018-07-20
摘要： Device for controlling an injector, including a passage space which can be closed off on one of its two sides by an armature element in order to thereby optionally separate a fluid high-pressure region from a fluid low-pressure region of the injector, a control space for applying a variable pressure to an injector component, preferably an injector needle, a valve which is arranged between another of the two sides of the passage space and the control space, a first connection which connects the high-pressure region of the injector to the passage space, and a second connection which connects the passage space to the control space, wherein the valve is configured to establish a direct connection between the high-pressure region and the control space if the pressure level in the passage space is equal to or higher than a predetermined value.
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公开(公告)号：US11215134B2
公开(公告)日：2022-01-04
申请号：US16522631
申请日：2019-07-25
摘要： The present invention discloses a method of operating an internal combustion engine comprising a controllable injector for injecting fuel into a combustion chamber, the injector communicating with a fuel accumulator through which it is supplied with fuel, the method comprising the following steps: determining a first pressure value of the pressure in the fuel accumulator on the basis of a first pressure measurement, determining a second pressure value of the pressure in the fuel accumulator on the basis of a second pressure measurement carried out after the first pressure measurement, and determining an injector opening duration depending on the first and the second pressure value.
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公开(公告)号：US11555464B2
公开(公告)日：2023-01-17
申请号：US16963655
申请日：2019-01-22
摘要： The present 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, a nozzle needle seat for receiving the nozzle needle tip, and a mechanical switch which upon contact of the nozzle needle tip with the nozzle needle seat assumes a closed state and upon interruption of the contact assumes an open state, wherein the injector is provided with an input line and an output line for actuating a movement of the nozzle needle, and the switch includes a first terminal and a second terminal. The injector is characterized in that the first terminal of the switch is connected to the input line and the second terminal of the switch is connected to the injector housing.
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公开(公告)号：US20220154674A1
公开(公告)日：2022-05-19
申请号：US17430698
申请日：2020-02-10
摘要： The present disclosure relates to a nozzle for a fuel injector that comprises a pivotably symmetrical nozzle member having a hollow space for introducing a nozzle needle, a nozzle tip that is provided at a longitudinal end of the nozzle member, and at least one opening for discharging fuel, and a nozzle needle arranged in the hollow space for a selective blocking of a fuel inflow to the at least one opening, wherein the nozzle needle is designed as tubular in the region of the nozzle tip and is adapted to conduct fuel in the interior of the tubular region to the at least one opening.
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公开(公告)号：US11319913B2
公开(公告)日：2022-05-03
申请号：US16632524
申请日：2018-07-20
摘要： The present invention relates to an injector for injecting fuel, comprising an injector housing for receiving at least one injector component, and an electromagnet for activating a valve for opening and closing the injector, wherein the electromagnet comprises a coil winding and a magnetic body, wherein the injector housing is formed in one piece with the magnetic body.
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公开(公告)号：US11111892B2
公开(公告)日：2021-09-07
申请号：US16632526
申请日：2018-07-20
摘要： The invention relates to a device for sensing the state of an injector, comprising an injector for injecting fuel into an engine combustion chamber, a switch, which is designed to change the switching state thereof in accordance with the state of the injector, and an evaluating unit for sensing the switching state of the switch, wherein a first switch contact of the switch is connected to an electrical input line of the injector, a second switch contact of the switch is connected to ground, and the evaluating unit is designed to carry out a first current measurement for a current flowing into the injector and into the switch and a second current measurement for the current flowing into the injector.
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公开(公告)号：US20210164429A1
公开(公告)日：2021-06-03
申请号：US17048534
申请日：2019-04-17
发明人： Richard PIRKL , Razvan-Sorin STINGHE , Markus HÖELLBACHER , Alexander PREIS , Michael SCHMID , Thomas ATZKERN
摘要： A fuel injector having a seat plate with a passage throttle; a valve insert arranged at a first side of the seat plate; a valve guide surrounding the valve insert and adapted for slidable reception of the valve insert; a spring sheath surrounding at least a section of a jet needle arranged at a second side of the valve insert, the second side opposite the first side and the seat plate; a valve chamber fluidly connected to the passage throttle; a control chamber adapted for reception of fuel; and a line arranged in the valve insert connecting the control chamber and the valve chamber to one another, wherein the line is closeable by placement of the valve insert onto the spring sheath.
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公开(公告)号：US20220136472A1
公开(公告)日：2022-05-05
申请号：US17429610
申请日：2020-02-05
发明人： Markus HOELLBACHER , Fabian SCHMID
摘要： The present invention relates to a sealing sleeve for the separated supply and discharge of a cooling medium that comprises a sealing member that is pivotally symmetrical about the longitudinal axis, a protrusion projecting radially outwardly with respect to the longitudinal axis at the upper longitudinal end of the sleeve member, a protrusion projecting radially outwardly with respect to the longitudinal axis at the lower longitudinal end of the sleeve member, a first web section and a second web section of which each one extends in the axial direction of the sleeve member and connects the upper protrusion to the lower protrusion, and a first wall region and a second wall region of which each one is bounded in the axial direction by the upper and lower protrusions and in the peripheral direction by the first and second web sections and is radially inward offset with respect to these elements, with the upper protrusion and the lower protrusion each extending continuously around the total periphery of the sleeve member and defining its maximum radial extent, and with the first wall region and the second wall region each having a radially extending passage channel to radially supply or discharge a cooling medium.
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公开(公告)号：US20210388802A1
公开(公告)日：2021-12-16
申请号：US17286419
申请日：2019-10-16
摘要： An injector for injecting fuel including an injector housing, a movable nozzle needle with a nozzle needle tip arranged in the injector housing, and a nozzle needle seat for receiving the nozzle needle tip. A contact pairing of the nozzle needle and the nozzle needle seat here represents a mechanical switch that adopts a closed state upon contact of the nozzle needle tip with the nozzle needle seat and an open state upon interruption of the contact. Provision is additionally made that the injector has an input line and an output line for controlling movement of the nozzle needle, the switch has a first connector connected to the input line and a second connector connected to the injector housing, and a resistor connected between the first connector of the switch and the input line.
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公开(公告)号：US20210317807A1
公开(公告)日：2021-10-14
申请号：US15734547
申请日：2019-06-04
发明人： Klaus LICHTINGER , Richard PIRKL , Alexander PREIS
IPC分类号： F02M61/16 , B23K26/00 , B23K26/382 , F02M61/18
摘要： The invention relates to a method for producing a nozzle, in which an injection orifice of the nozzle for dispensing fuel is produced by means of laser drilling, and a cavity is formed in the nozzle along the longitudinal expansion thereof. The method is characterised in that the cavity formed in the injector is produced after the injection orifice has been produced.
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