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21.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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22.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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公开(公告)号：US20160177900A1
公开(公告)日：2016-06-23
申请号：US14580820
申请日：2014-12-23
Applicant: Cummins Inc.
Inventor： Donald J. Benson , Ahmad M. Sabri , Hanumantharao Konakanchi
CPC classification number: F02M55/002 , F02M47/027 , F02M63/0012 , F02M63/0225
Abstract: A fuel injector, comprising an injector body having a longitudinal axis, an injector cavity, an injector orifice at a distal end of the injector cavity, and an inlet conduit configured to supply fuel into the injector cavity, a nozzle valve in the injector cavity, a drain circuit configured to drain fuel from the injector cavity to a low pressure drain, a pilot valve in flow communication with the drain circuit, a chamber housing having an inlet passage to receive fuel from the injector cavity, a return port in flow communication with the pilot valve to drain fuel to the drain circuit, and an abutting surface surrounding the return port, and a control body slidably disposed in the chamber housing, the control body having, a distal end, a proximal end, and a longitudinal axis parallel with the injector body longitudinal axis, a first depression at the distal end defining a first control chamber in which one end of the nozzle valve is guided, a second depression at the proximal end defining a second control chamber in flow communication with the return port, and an annular seal disposed radially of the second depression having a first diameter at an inner surface and a second diameter at an outer surface, wherein the first diameter is smaller than the second diameter.
Abstract translation: 一种燃料喷射器，包括具有纵向轴线的喷射器主体，喷射器腔体，喷射器腔体的远端处的喷射器孔口以及被构造成将燃料供应到喷射器腔体中的入口导管，喷射器腔体中的喷嘴阀， 排水回路，其构造成将来自所述喷射器腔的燃料排出到低压排放口，与所述排放回路流体连通的先导阀，具有用于从所述喷射器腔接收燃料的入口通道的腔室壳体， 所述先导阀将燃料排放到所述排水回路，以及围绕所述返回端口的邻接表面以及可滑动地设置在所述腔室壳体中的控制体，所述控制体具有与所述控制主体平行的远端，近端和纵向轴线 所述喷射器主体纵向轴线，所述远端处的第一凹陷限定了其中所述喷嘴阀的一端被引导的第一控制室，所述近端处的第二凹陷定义 与所述返回端口流动连通的第二控制室，以及设置在所述第二凹部的径向上的环形密封件，所述第二凹部在内表面具有第一直径，在外表面具有第二直径，其中所述第一直径小于所述第二直径 。
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Patent Agency Ranking
公开(公告)号：US20150345450A1
公开(公告)日：2015-12-03
申请号：US14292860
申请日：2014-05-31
Applicant: CUMMINS INC.
Inventor： Marian Trocki , Donald J. Benson , Tamas Rauznitz , Vijayagandeeban Subbaihannadurai , Deepak Sahini
IPC: F02M61/04
CPC classification number: F02M61/042 , F02M45/12 , F02M61/12 , F02M63/0056 , F02M2200/28 , F02M2200/306
Abstract: An injector has an injector body including an injector cavity defining an inner wall and a longitudinal axis, an injector orifice and a plunger slidably disposed within the injector cavity. The plunger has an outer portion and an inner portion at different locations longitudinally along the plunger. The inner portion has a plurality of surface portions including a guiding portion configured to substantially mate with the inner wall of the injector cavity, guide the plunger to slidably move in a direction along the longitudinal axis and substantially prevent the plunger from laterally translating within the injector cavity. The plurality of surface portions also includes a restriction portion configured to form a restrictive cavity between an exterior surface of the inner portion and the inner wall of the injector cavity axially along a length of the inner portion.
Abstract translation: 注射器具有喷射器主体，其包括限定内壁和纵向轴线的喷射器腔，喷射器孔和可滑动地设置在喷射器腔内的柱塞。 柱塞具有沿着柱塞纵向的不同位置处的外部部分和内部部分。 内部部分具有多个表面部分，其包括构造成与注射器腔体的内壁大致配合的引导部分，引导柱塞沿着纵向轴线方向可滑动地移动，并且基本上防止柱塞在注射器内侧向平移 腔。 所述多个表面部分还包括限制部分，所述限制部分构造成沿着所述内部部分的长度轴向地在所述内部部分的外表面和所述注射器腔体的内壁之间形成限制腔。
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27.发明申请公开(公告)号：US20250012228A1
公开(公告)日：2025-01-09
申请号：US18713286
申请日：2021-11-30
Applicant: Cummins Inc.
Inventor： Donald J. Benson
Abstract: A method includes operating a pump to pump fuel to a rail and concurrently operating one or more injectors to inject fuel from the rail into one or more cylinders of an engine. The method further includes filtering measurements of fuel pressure of the rail to determine filtered pressures for at least a first pressure measurement zone preceding a target event and a second pressure measurement zone succeeding a target fuel mass change event, determining a pressure change in response to the filtered pressures, and determining a fuel mass change of the target event in response to the pressure change.
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公开(公告)号：US20240200505A1
公开(公告)日：2024-06-20
申请号：US18536874
申请日：2023-12-12
Applicant: Cummins Inc.
Inventor： Donald J. Benson
CPC classification number: F02D41/40 , F02D41/2432 , F02D2200/0602 , F02D2200/0614
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：US11668261B2
公开(公告)日：2023-06-06
申请号：US17605174
申请日：2019-04-22
Applicant: Cummins Inc.
Inventor： Donald J. Benson
IPC: F02D41/38
CPC classification number: F02D41/3845 , F02D2200/0602 , F02D2200/101
Abstract: A method and system is provided of controlling a pump having a pumping element comprising: determining, by a controller, a suspension of one or more fuel delivery events for a pumping element of the at least one pumping element; subsequent to determining the suspension of the one or more fuel delivery events, providing, by the controller, a first command to open an inlet valve of the pumping element to remove a portion of residual fluid within a pumping chamber based on pressure within the pumping chamber of the pumping element; and subsequent to providing the first command, providing, by the controller, a second command to close the inlet valve of the pumping element based on a top dead center (TDC) position of the pumping element.
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公开(公告)号：US20230167793A1
公开(公告)日：2023-06-01
申请号：US17578171
申请日：2022-01-18
Applicant: Cummins Inc.
Inventor： Donald J. Benson , Ahmad M. Sabri
CPC classification number: F02M55/002 , B05B1/3053 , F02M51/0603 , F02M61/04 , F02M61/1806 , F02M61/1886 , F02M2200/21 , F02M2200/26 , F02M2200/9053
Abstract: A fuel injector includes an injector body comprising an internal injector cavity, a flow passageway, and a drain conduit. The flow passageway is in fluid communication with at least one injector orifice. The fuel injector further includes a valve assembly comprising a valve seat and a valve member in fluid communication with the fuel circuit. The valve member is configured to move between an open position allowing fuel flow through the at least one injector orifice and a closed position inhibiting fuel flow through the at least one injector orifice. The fuel injector also includes a nozzle valve element fluidly coupled to the valve assembly, an actuator operably coupled to the valve assembly and the nozzle valve element, and a flexible member configured to elastically deform in response to pressure in the fuel injector. The flexible member is configured to inhibit flow to the drain circuit during an injection event.
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