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公开(公告)号：US20150219054A1
公开(公告)日：2015-08-06
申请号：US14170129
申请日：2014-01-31
Applicant: Cummins Inc.
Inventor： Paul Peavler , Donald J. Benson , Paul Douglas Free , Jeffrey C. Huang , Eric Benham , C. Edward Morris, JR.
IPC: F02M69/04
CPC classification number: F02M69/04 , F02M47/027 , F02M55/008 , F02M2200/28 , F02M2200/315
Abstract: A fuel injector has a plurality of injection fuel delivery passages, which transport fuel from a proximate end to an injector cavity near the distal end of the fuel injector, wherein less than a total number of injection fuel delivery passages include an orifice. This configuration provides a reduction in fueling variation from pulse to pulse (multi-pulse) with respect to pulse separation due to pressure variation while allowing a sufficient amount of fuel flow to the injector cavity. Thus, the consistency of Start-Of-Injection (SOI) and opening rate both improve significantly and advantageously. For compactness, the orifices may be positioned in a cover plate used to retain the components of the injection control valve assembly and may further be arranged in an arc segment when viewed along a longitudinal axis.
Abstract translation: 燃料喷射器具有多个喷射燃料输送通道，其将燃料从燃料喷射器的远端附近的近端运送到喷射器腔，其中小于喷射燃料输送通道的总数包括孔口。 该配置提供了由于压力变化而相对于脉冲分离而从脉冲到脉冲（多脉冲）的加油变化减少，同时允许足够量的燃料流入喷射器腔。 因此，起始注入（SOI）和开放率的一致性都显着和有利地改善。 为了紧凑性，孔可以定位在用于保持喷射控制阀组件的部件的盖板中，并且当沿着纵向轴线观察时可以进一步布置在弧形段中。
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公开(公告)号：US20250084814A1
公开(公告)日：2025-03-13
申请号：US18953425
申请日：2024-11-20
Applicant: Cummins Inc.
Inventor： Eric A. Benham , Karthik Sethuraman , Donald J. Benson , Michael Andrew Lucas , Richard E. Duncan
Abstract: At least some embodiments of the present disclosure are directed to pump assemblies. In some embodiments, the pump is a high-pressure pump for an engine. The pump includes: an inlet valve configured to receive fuel; an armature coupled to the inlet valve and configured to actuate the inlet valve; and a pump barrel comprising a barrel guide, the barrel guide comprising a protrusion and configured to guide a motion of the armature.
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公开(公告)号：US20250075676A1
公开(公告)日：2025-03-06
申请号：US18814930
申请日：2024-08-26
Applicant: Cummins Inc.
Inventor： Donald J. Benson , Ross A. Phillips , Raymond V. Primus , Jin Young Song , Anthony Allan Shaull , Andrew Jacob Laska , Ahmad M. Sabri , David J. Benson
IPC: F02M61/20
Abstract: A fuel injector for gaseous fuel is provided. The fuel injector includes at least one valve having a valve seat and a plunger that engages the seat to prevent gaseous fuel flow and is displaced from the seat to permit gaseous fuel flow. Displacement of the plunger away from the seat to open the at least one valve is resisted by a first plunger control mechanism and then a second plunger control mechanism depending on the distance the plunger is lifted from the seat.
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公开(公告)号：US12215648B2
公开(公告)日：2025-02-04
申请号：US18536874
申请日：2023-12-12
Applicant: Cummins Inc.
Inventor： Donald J. Benson
Abstract: Fuel injection control systems and methods for enhancing the delivery of low quantities of fuel in internal combustion engines. Calibration/control data may be continuously generated and updated during the operation of the engine, for example without delivering fuel to the engine cylinders. Disclosed embodiments include periodically operating one or more fuel injectors of the engine in a non-injection state; generating and storing parameter information representative of the operation of the one or more fuel injectors in the non-injection state; and operating the one or more fuel injectors in an injection state to inject a desired pulse of fuel based upon the parameter information and information representative of an additional amount of fuel.
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公开(公告)号：US20240426255A1
公开(公告)日：2024-12-26
申请号：US18696082
申请日：2022-09-22
Applicant: Cummins Inc.
Inventor： Donald J. Benson
Abstract: A method includes operating a fuel injector to perform a fuel injection, determining an estimate of the actual injected quantity of the fuel injection, determining a change in a commanded on time to achieve an injected quantity relative to the commanded on time required to initiate injection of the injector in response to the estimate of the actual injected quantity and a commanded injection quantity, and determining an injector opening rate shape slope estimate for the injector in response to the commanded on time required to initiate injection. The method may further include one or more of outputting a diagnostic or prognostic of the fuel injector, adjusting an injection control parameter, or adjusting an injector monitoring operation in response to the injector opening rate shape slope estimate.
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Patent Agency Ranking
公开(公告)号：US12173675B2
公开(公告)日：2024-12-24
申请号：US18497382
申请日：2023-10-30
Applicant: Cummins Inc.
Inventor： Eric A. Benham , Karthik Sethuraman , Donald J. Benson , Michael Andrew Lucas , Richard E. Duncan
Abstract: At least some embodiments of the present disclosure are directed to pump assemblies. In some embodiments, the pump is a high-pressure pump for an engine. The pump includes: an inlet valve configured to receive fuel; an armature coupled to the inlet valve and configured to actuate the inlet valve; and a pump barrel comprising a barrel guide, the barrel guide comprising a protrusion and configured to guide a motion of the armature.
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47.发明授权公开(公告)号：US11725604B2
公开(公告)日：2023-08-15
申请号：US17630466
申请日：2019-08-02
Applicant: Cummins Inc.
Inventor： Paul Peavler , Donald J. Benson , David Michael Carey , Timothy J. Viola
CPC classification number: F02D41/22 , F02D41/3836 , F02D41/3845 , F02D2041/225 , F02D2200/0602
Abstract: The present disclosure relates to a method for controlling pressure of an engine, including a controller structured to implement the method and an engine system including the controller. More specifically, the present disclosure relates to a method based on a mass balance analysis of a fuel system to determine how much mass needs to be pumped to maintain or achieve a certain pressure for the engine. In some embodiments, the method analyzes how much mass can be pumped by each pumping event based on current engine conditions. The analysis is performed over the smallest repeatable pump events and cylinder events cycle, or “subcycle,” based on the number of pump events and cylinder events for a given engine configuration.
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48.发明公开公开(公告)号：US20230175452A1
公开(公告)日：2023-06-08
申请号：US18160757
申请日：2023-01-27
Applicant: Cummins Inc.
Inventor： Jalal Syed , Donald J. Benson , David Michael Carey , Sanjay Manglam
CPC classification number: F02D41/3809 , F02D41/3818 , F02D41/401 , F02D41/403
Abstract: The present invention provides a method for analyzing and optimizing the injection of fluid into an internal combustion engine via a common rail system. Once various injection parameters are determined for a given injection system, these data may be used to model the effect of sequential injection events for the system. A processer can then be used to run the model and to adjust sequential fuel injection events to optimize engine performance and fuel usage.
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公开(公告)号：US20210164415A1
公开(公告)日：2021-06-03
申请号：US17169725
申请日：2021-02-08
Applicant: Cummins Inc.
Inventor： Donald J. Benson
Abstract: A method of controlling an engine system includes controlling a fuel injector to perform a zero-fueling injector operation during operation of the engine, the zero-fueling injector operation including a non-zero injector on-time resulting in zero fueling by the injector, determining an injection system pressure change associated with the zero-fueling injector operation, modifying at least one fuel injection control parameter in response to the injection system pressure change, and using the modified fuel injection control parameter to control injection of fuel by the fuel injector during operation of the engine.
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公开(公告)号：US10968857B2
公开(公告)日：2021-04-06
申请号：US16344764
申请日：2017-10-24
Applicant: Cummins Inc.
Inventor： Donald J. Benson , Paul Peavler
Abstract: A method and system is provided of controlling a pump having a pumping element configured to provide pressurized fuel to a common rail accumulator coupled to a plurality of fuel injectors configured to inject fuel into a corresponding plurality of cylinders of an engine, comprising: receiving rail pressure values indicating a current fuel pressure in the accumulator; and responding to the received at least one rail pressure value by controlling operation of the pumping element during each potential pumping event of the pumping element to generate actual pumping events during at least some of the potential pumping events to cause the rail pressure values to remain within a desired range and to at least one of increase an overall efficiency of the pump, decrease audible noise generated by the pump, increase reliability of the pump and reduce injection pressure variations at the plurality of fuel injectors.
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