-
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.
-
公开(公告)号：US20210254589A1
公开(公告)日：2021-08-19
申请号：US17275097
申请日：2019-09-21
摘要： An injector (1) for injecting fuel and an additional fluid, is provided in that the injector (1) is designed for optimal space-saving yet exhibiting a simple construction. This construction results in a precise injection of a fuel and an additional fluid into a combustion chamber of an internal combustion engine. The arrangement has two solenoid valves, the first valve (2) and the second valve (3). The second solenoid valve (3) has a second nozzle needle (9) which is arranged in the injector (1), and the first nozzle needle (7) of the first solenoid valve (2) and the second nozzle needle (9) of the second solenoid valve (3) are arranged one behind the other on a longitudinal axis (10) of the injector (1). Further, the nozzle needles (7, 9) can be controlled independently of one another.
-
33.发明申请公开(公告)号：US20210254576A1
公开(公告)日：2021-08-19
申请号：US16892169
申请日：2020-06-03
发明人： Jung-Suk HAN , Chang-Jin OH
摘要： A fuel injection control method of injecting fuel to a combustion chamber through an injector, the method may include performing, by a controller electrically-connected to the injector, a main injection configured of controlling the injector to inject the fuel in a target injection fuel amount; and performing, by the controller, a pre-injection configured of driving the injector to inject the fuel in advance, before the performing of the main injection with a predetermined idle time interposed therebetween, wherein the performing of the pre-injection is configured of magnetizing an injector coil of the injector by applying a current to the injector during a predetermined pre-injection time, in which a flow rate of the fuel is prevented from being generated by the pre-injection.
-
公开(公告)号：US11085410B2
公开(公告)日：2021-08-10
申请号：US16380727
申请日：2019-04-10
IPC分类号： F02M61/00 , F02M61/10 , F02D41/20 , F02M61/18 , F02M45/08 , F02D41/14 , F02D41/26 , F02M51/06
摘要： A fuel injector assembly in one embodiment includes a nozzle, at least one needle, and at least one actuator. The nozzle includes at least one cavity in fluid communication with nozzle openings. The at least one needle is movably disposed within the at least one cavity, and prevents flow through the nozzle openings in a closed position. The at least one actuator is configured to move the at least one needle within the cavity. The at least one actuator is configured to move the at least one needle to at least a first fuel delivery configuration and a second fuel delivery configuration. A first amount of fuel is delivered through the nozzle openings with the at least one needle in the first fuel delivery configuration, and a second amount of fuel is delivered through the nozzle openings with the at least one needle in the second fuel delivery configuration.
-
公开(公告)号：US20210239063A1
公开(公告)日：2021-08-05
申请号：US17049097
申请日：2019-02-13
发明人： Kotaro OKI , Osamu MUKAIHARA
摘要： The present invention provides a fuel injection control apparatus that can suppress variations in fuel injection amounts in a very small fuel injection region. For this purpose, the fuel injection control apparatus includes a fixed injection pulse generator 10 and a drive current interruption unit 31. The fixed injection pulse generator 10 generates a fixed injection pulse having a valve opening timing at which a drive current is supplied to an electromagnetic coil 19 in an electromagnetic fuel injection valve 18 and a first valve closing timing at which the drive current to the electromagnetic coil 19 is interrupted. Within a period in which the fixed injection pulse is generated, the drive current interruption unit 31 determines an electric energy amount of a drive current supplied to the electromagnetic coil in response to a valve opening timing of the fixed injection pulse. When this electric energy amount reaches a preset, predetermined target electrical energy amount, the drive current interruption unit generates a second valve closing timing of the fixed injection pulse different from the first valve closing timing and then interrupts the drive current supplied to the electromagnetic coil before the first valve closing timing.
-
公开(公告)号：US11060494B2
公开(公告)日：2021-07-13
申请号：US16531941
申请日：2019-08-05
申请人： Robert Bosch GmbH
发明人： Fatima Mutlu
IPC分类号： F02M61/16 , C23C8/00 , C23C8/24 , F02M61/18 , C23C8/30 , C23C8/48 , C23C8/54 , C23C8/80 , F02M51/06 , C23C8/34 , F02M61/10
摘要： A valve is provided, in particular an injection valve, having a valve seat and a valve needle which extends along a closing direction for the most part, the valve seat having a valve-seat surface, and a valve-closing element is mounted on an end of the valve needle facing the valve seat, the valve-closing element being able to be moved between an open position and a closed position, and the valve-closing element together with the valve-seat surface forming a sealing seat in the closed position, the valve-closing element having a greater core hardness and/or surface hardness than the valve-seat surface.
-
公开(公告)号：US11060474B2
公开(公告)日：2021-07-13
申请号：US16388960
申请日：2019-04-19
申请人： DENSO CORPORATION
发明人： Kazuhiro Nishigaki
摘要： A fuel injection control device is for a fuel injection system including a fuel injection valve for injecting a fuel in an internal combustion engine. The fuel injection system is configured to perform multiple-stage injection for injecting fuel multiple times in one combustion cycle. The fuel injection control device includes an information acquisition unit to acquire a parameter, which indicates an influence of a pre-stage injection on a post-stage injection, in the pre-stage injection and the post-stage injection subsequent to the pre-stage injection in the multi-stage injection. The fuel injection control device further includes a correction unit to correct a mode of the post-stage injection based on the parameter.
-
公开(公告)号：US20210189987A1
公开(公告)日：2021-06-24
申请号：US17126484
申请日：2020-12-18
申请人： DENSO CORPORATION
发明人： HIROAKI SHIRAKAWA , MASASHI INABA
摘要： An injection control device includes a boost controller performing boost control of a boosted voltage generated by a booster circuit until a boosted voltage, which is generated in a boost capacitor, rises to a full-charge threshold when the boosted voltage falls below a charge start threshold. When, for stopping a peak current by a drive unit, a power interruption controller interrupts electric current supplied to the fuel injection valve by the drive unit as interruption control (i) of an application voltage to a fuel injection valve or (ii) of a constant current by the drive unit, a regeneration unit regenerates electric current generated in the fuel injection valve to the boost capacitor of the booster circuit. The boost controller upward-shifts (i.e., raises) the full-charge threshold of the booster circuit.
-
公开(公告)号：US11028808B2
公开(公告)日：2021-06-08
申请号：US16372466
申请日：2019-04-02
发明人： Yuji Okamura , Kazuya Mizumoto
摘要： An injector device is equipped with a casing enabling hydrogen gas to flow in and flow out and a first plunger and a second plunger which are accommodated inside the casing. Further, by a drive unit, the injector device performs a first operation to integrally displace the first plunger and the second plunger and a second operation to displace the first plunger relative to the second plunger. The second plunger has a flow path allowing the hydrogen gas to flow, and the first plunger is disposed to be inserted into the flow path and is displaced relative to the second plunger to open and close the flow path.
-
公开(公告)号：US20210123393A1
公开(公告)日：2021-04-29
申请号：US17051883
申请日：2019-02-14
发明人： Fumihiro ITABA , Osamu MUKAIHARA
摘要： Provided is a fuel injection control device capable of detecting individual differences in fuel injection valves and appropriately collecting information on the individual differences. For this reason, the fuel injection control device includes a fuel injection valve drive circuit that supplies a current or a voltage to a coil of a fuel injection valve to drive the fuel injection valve, a valve body operation time period detection unit that detects a valve body operation time period related to an operation of a valve body of the fuel injection valve, and a state determination unit that determines that at least one of the fuel injection valve, the valve body operation time period detection unit, and the fuel injection valve drive circuit is abnormal based on information related to a valve body operation time period detected by the valve body operation time period detection unit.
-
-
-
-
-
-
-
-
-
搜索结果
3049 条记录 (耗时 0.03 秒)
