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公开(公告)号：US11680536B2
公开(公告)日：2023-06-20
申请号：US17424362
申请日：2020-01-23
发明人： Xavier Moine
IPC分类号： F02D41/30 , F02D41/06 , F02M37/08 , F02M51/04 , F02M59/02 , F02M59/10 , F04B17/04 , F04B49/02 , F04B49/06 , F04B49/08
CPC分类号： F02D41/3082 , F02D41/062 , F02M37/08 , F02M51/04 , F02M59/025 , F02M59/10 , F04B17/04 , F04B49/022 , F04B49/065 , F04B49/08 , F04B2203/0401
摘要： Disclosed is a method for managing a piston pump using a computer of a vehicle, the pump including a guide, a piston slidably mounted in the guide, and a solenoid, suitable for moving the piston, the method including, as long as the fuel pressure in the compression chamber of the pump is below a predetermined pressure threshold, a step of the computer controlling the solenoid in order to move the piston to its high position, and a step of the computer detecting that the predetermined pressure threshold has been exceeded when the current value, measured after a predetermined period, is greater than or equal to a predetermined reference value so that the computer ceases to control the solenoid.
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公开(公告)号：US11293385B2
公开(公告)日：2022-04-05
申请号：US17195875
申请日：2021-03-09
申请人： Vianney Rabhi
发明人： Vianney Rabhi
摘要： The forced recirculation mixer (1) consists of a stirring enclosure (5) whose internal cavity forms a recirculation loop (6) in which circulates a homogeneous gas mixture (4) formed by a gas (3) to be mixed and a vaporizable liquid (2) respectively introduced into that loop (6) via a gas inlet duct (7) and a liquid injection nozzle (9), gas drawing-off means (12) being capable of withdrawing a homogeneous gas mixture (4) from the stirring enclosure (5) via a mixture draw-off duct (11) and a stirring turbine (13) driven by a turbine motor (28) forcing the homogeneous gas mixture (4) to circulate in the recirculation loop (6).
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公开(公告)号：US20220090557A1
公开(公告)日：2022-03-24
申请号：US17424362
申请日：2020-01-23
发明人： Xavier MOINE
IPC分类号： F02D41/30 , F02M51/04 , F02M59/02 , F02M59/10 , F04B17/04 , F04B49/02 , F04B49/06 , F04B49/08 , F02D41/06 , F02M37/08
摘要： Disclosed is a method for managing a piston pump using a computer of a vehicle, the pump including a guide, a piston slidably mounted in the guide, and a solenoid, suitable for moving the piston, the method including, as long as the fuel pressure in the compression chamber of the pump is below a predetermined pressure threshold, a step of the computer controlling the solenoid in order to move the piston to its high position, and a step of the computer detecting that the predetermined pressure threshold has been exceeded when the current value, measured after a predetermined period, is greater than or equal to a predetermined reference value so that the computer ceases to control the solenoid.
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公开(公告)号：US20210363951A1
公开(公告)日：2021-11-25
申请号：US16991647
申请日：2020-08-12
发明人： Stephan Revidat , Johannes Ullrich
摘要： A fuel pump for a liquid fuel injection system of a motor vehicle is provided. The fuel pump for a fuel injection system includes a low-pressure pump that provides liquid fuel from a fuel tank of the motor vehicle at a low pressure. A high-pressure pump in fluid communication with the low-pressure pump and compresses the liquid fuel from the low pressure to a high pressure for injecting the liquid fuel into an internal combustion engine of the motor vehicle. A pump drive drives the low-pressure pump and the high-pressure pump synchronously with a pump frequency independently from an engine speed of the internal combustion engine of the motor vehicle.
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公开(公告)号：US20210285410A1
公开(公告)日：2021-09-16
申请号：US16336541
申请日：2017-03-02
申请人： CPT Group GmbH
发明人： Tet Kong Brian Chia , Dmitriy Kogan
摘要： Various embodiments include methods for operating a high-pressure pump comprising: driving a piston arranged in a compression chamber with a motor shaft; during movement of the piston toward the top dead center, closing the inlet valve so the fluid is then delivered by the piston through an outlet valve; applying a coil current to an electromagnet used to close the inlet valve during and/or after overshooting the top dead center; detecting a start time at which the coil current, on account of starting of an opening movement of the inlet valve, fulfills a predetermined change criterion; labelling a dead center rotation position of the motor shaft at which the piston is at the top dead center based at least in part on the ascertained start time; and adjusting operation of the pump based on the identified dead center rotation position.
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公开(公告)号：US11105437B2
公开(公告)日：2021-08-31
申请号：US16023988
申请日：2018-06-29
发明人： James Fochtman , John Walters , Tyler Craven
IPC分类号： F16K31/06 , F04B53/10 , F02M37/10 , H01F7/08 , H01F7/16 , F02M59/46 , F02M51/04 , F02M63/00 , F02M37/08 , F02M59/10 , F04B23/02 , F02M55/00 , F04B39/10 , F16K1/42 , F16K15/02 , F16K27/02 , F04B17/04 , F16K15/14 , F02M51/06 , F02M59/36 , B21D39/06 , F02M37/54 , F02D41/30 , F02M37/04
摘要： A valve assembly for a fluid pump includes a valve body; an inlet disk movably disposed in the valve body; an outlet disk movably disposed in the valve body; and a valve seat fixed within the valve body. The valve seat includes a first aperture defined axially through the valve seat in a radial central portion thereof, and one or more second apertures disposed at least partly around the first aperture. The inlet disk is biased in a closed position against the valve seat along a first surface thereof, the closed position of the inlet disk covering the one or more second apertures of the valve seat. The outlet disk is biased in a closed position against the valve seat along a second surface thereof.
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公开(公告)号：US20200158067A1
公开(公告)日：2020-05-21
申请号：US16655324
申请日：2019-10-17
发明人： Yasuhiro NAKADA , Kenji SHIBATA , Wataru FUKUMOTO
摘要： The present invention provides a batteryless engine system comprising a first detection unit configured to detect a rotation speed of an internal combustion engine, a second detection unit configured to detect a voltage of a capacitor in which charges are accumulated, and a control unit operated by a power supplied from a generator and configured to control supply of a power from the generator to an injector, a fuel pump, and an ignition device based on the rotation speed detected by the first detection unit and the voltage detected by the second detection unit in a starting period of the internal combustion engine by a recoil starter.
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公开(公告)号：US10260448B2
公开(公告)日：2019-04-16
申请号：US15759584
申请日：2016-09-07
申请人： DENSO CORPORATION
发明人： Nobuyuki Satake
IPC分类号： B60T7/12 , F02D41/40 , F02D41/20 , F02M51/04 , F02D41/34 , F02M57/02 , F02D45/00 , F02D41/38 , F02M51/06
摘要： An ECU includes an injection controller that performs a partial lift injection in which a fuel injection valve is drivingly opened by an injection pulse by which a lift amount of a valve body of the fuel injection valve does not reach a full lift position, a first calculation section that calculates a first parameter correlated with an amount of induced electromotive force generated by a magnetic flux change during movement of the valve body to a closed position after OFF of the injection pulse of the partial lift injection, a second calculation section that calculates, based on a time-series change of the induced electromotive force after OFF of the injection pulse of the partial lift injection, a second parameter correlated with a voltage inflection point generated with reaching of the valve body to the closed position, and a correction section that corrects a time length of the injection pulse based on the first parameter and the second parameter.
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公开(公告)号：US20180216565A1
公开(公告)日：2018-08-02
申请号：US15868072
申请日：2018-01-11
发明人： Toru SUDA
CPC分类号： F02D41/263 , F02D41/0082 , F02D41/3094 , F02D41/3809 , F02D41/40 , F02D2041/3881 , F02D2200/0602 , F02D2200/0604 , F02D2200/0606 , F02D2200/101 , F02D2250/04 , F02M51/04 , F02M63/0007 , F02M63/029 , F02M63/0295
摘要： A fuel injection control device includes processing circuitry, which executes an estimating process to estimate pressure in first and second fuel storage members connected to first and second fuel injection valves. The estimating process includes: estimating the pressure in the first fuel storage member based on a detection value of a pressure sensor that detects the pressure in the first fuel storage member and a cycle of pulsation in the first fuel storage member, which is determined in accordance with an interval of fuel injections in a first bank; and estimating the pressure in the second fuel storage member by assuming that a phase of a periodic fluctuation of the pressure in the second fuel storage member and a phase of a periodic fluctuation of the pressure in the first fuel storage member are in antiphase.
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公开(公告)号：US09777687B2
公开(公告)日：2017-10-03
申请号：US15096823
申请日：2016-04-12
发明人： Tomohiro Nakano
IPC分类号： F02M59/00 , F02M59/36 , F02M51/04 , F02M59/02 , F02M61/08 , F02M63/02 , F02D41/38 , F02D41/08 , F02M59/46
CPC分类号： F02M59/366 , F02D41/08 , F02D41/3845 , F02D2041/3881 , F02M51/04 , F02M59/027 , F02M59/466 , F02M61/08 , F02M63/029 , F02M2200/09
摘要： A fuel supply device includes an injector, a fuel pressurization device and an ECU. The fuel pressurization device includes an electromagnetic valve. The fuel pressurization device is configured to pressurize a fuel in accordance with opening/closing of the electromagnetic valve and discharge the fuel toward the injector. The ECU is configured: to control the opening/closing of the electromagnetic valve to adjust the fuel amount discharged toward the injector; to execute an operation sound suppression control during a low-load operation of an engine by reducing an opening/closing frequency of the electromagnetic valve and increasing the fuel amount discharged for each opening/closing of the electromagnetic valve; not to execute the operation sound suppression control when a partial lift injection is in progress; and to execute the operation sound suppression control when the partial lift injection is not in progress.
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