公开(公告)号：WO2020041087A1

公开(公告)日：2020-02-27

申请号：PCT/US2019/046661

申请日：2019-08-15

Applicant: CUMMINS INC.

Inventor： BENSON, Donald J.

IPC: F02B3/10

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.

公开(公告)号：WO2022108578A1

公开(公告)日：2022-05-27

申请号：PCT/US2020/060934

申请日：2020-11-18

Applicant: CUMMINS INC.

Inventor： BENSON, Donald J. ,  BENHAM, Eric A. ,  SABRI, Ahmad M. ,  MAGNUSON, Samuel David Griffith

IPC: F02M59/08 ,  F02M59/10

Abstract: A pumping assembly includes at least one removable unit barrel pumping assembly coupled to a housing of the pumping assembly. The pumping assembly further includes a drive member having a roller configured to engage a portion of the unit barrel pumping assembly during operation of the pumping assembly. The roller is configured to include a plurality of geometric shapes to distribute load forces during operation of the pumping assembly.

公开(公告)号：WO2022025882A1

公开(公告)日：2022-02-03

申请号：PCT/US2020/044064

申请日：2020-07-29

Applicant: CUMMINS INC. ,  JALAL, Syed ,  BENSON, Donald J. ,  CAREY, David Michael ,  MANGLAM, Sanjay

Inventor： JALAL, Syed ,  BENSON, Donald J. ,  CAREY, David Michael ,  MANGLAM, Sanjay

IPC: F02D41/40

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.

公开(公告)号：WO2021101566A1

公开(公告)日：2021-05-27

申请号：PCT/US2019/062777

申请日：2019-11-22

Applicant: CUMMINS INC. ,  BENSON, Donald J. ,  DOSZPOLY, Bela ,  BENHAM, Eric A. ,  SABRI, Ahmid M. ,  DUNCAN, Richard E.

Inventor： BENSON, Donald J. ,  DOSZPOLY, Bela ,  BENHAM, Eric A. ,  SABRI, Ahmid M. ,  DUNCAN, Richard E.

IPC: F02M59/44

Abstract: A plunger is provided for reciprocating inside the barrel of a fuel pump. The plunger has a proximal end and a distal end. The proximal end of the plunger includes a cavity that defines a depressed volume within the plunger. A volume filler is disposed in the cavity, where the volume filler is constrained in the cavity by a retaining element.

公开(公告)号：WO2023059986A1

公开(公告)日：2023-04-13

申请号：PCT/US2022/076826

申请日：2022-09-22

Applicant: CUMMINS INC.

Inventor： BENSON, Donald J.

IPC: F02D41/24 ,  F02D41/22 ,  F02D2041/224 ,  F02D2200/0602 ,  F02D2200/0616 ,  F02D41/2467

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.

公开(公告)号：WO2015116777A1

公开(公告)日：2015-08-06

申请号：PCT/US2015/013446

申请日：2015-01-29

Applicant: CUMMINS INC.

Inventor： PEAVLER, Paul ,  BENSON, Donald J. ,  FREE, Paul Douglas ,  HUANG, Jeffrey C. ,  BENHAM, Eric ,  MORRIS, C. Edward

IPC: F02M47/02 ,  F02M55/00 ,  F02M55/04

CPC classification number: F02M69/04 ,  F02M47/027 ,  F02M55/008 ,  F02M2200/28 ,  F02M2200/315

Abstract: A fuel injector (18) has a plurality of injection fuel delivery passages (86), which transport fuel from a proximate end to an injector cavity (52) near the distal end of the fuel injector, wherein less than a total number of injection fuel delivery passages (86) include an orifice (200). 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-lnjection (SOI) and opening rate both improve significantly and advantageously. For compactness, the orifices may be positioned in a cover plate (132) 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（18）具有多个喷射燃料输送通道（86），其将燃料从近端延伸到靠近燃料喷射器远端的喷射器腔（52），其中少于喷射燃料的总数 输送通道（86）包括孔口（200）。 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有显着和有利的改善。 对于紧凑性，孔可以定位在用于保持喷射控制阀组件的部件的盖板（132）中，并且当沿着纵向轴线观察时可进一步布置在弧形段中。

公开(公告)号：WO2022235253A1

公开(公告)日：2022-11-10

申请号：PCT/US2021/030559

申请日：2021-05-04

Applicant: CUMMINS INC.

Inventor： BENHAM, Eric A. ,  SETHURAMAN, Karthik ,  BENSON, Donald J. ,  LUCAS, Michael Andrew ,  DUNCAN, Richard E.

IPC: F02M59/36

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.

公开(公告)号：WO2022120146A1

公开(公告)日：2022-06-09

申请号：PCT/US2021/061768

申请日：2021-12-03

Applicant: CUMMINS INC.

Inventor： BENSON, Donald J. ,  SETHURAMAN, Karthik ,  LUCAS, Michael A. ,  BENHAM, Eric A. ,  DUNCAN, Richard E.

IPC: F04B53/10 ,  F02M59/46 ,  F04B7/04 ,  F04B19/22 ,  F04B23/10 ,  F04B43/10

Abstract: A pump inlet valve includes a valve body and a plunger assembly. The valve body includes a valve body cavity. The plunger assembly is arranged within the valve body cavity and includes a plunger body, a plunger barrel formed at the plunger body so as to form a plunger barrel volume, and a plunger. The plunger is configured to move within the plunger barrel to thereby allow a fluid to flow past the plunger assembly when the plunger is in an open position and to inhibit the fluid from flowing past the plunger assembly when the plunger is in a closed position. The plunger is configured to allow continuous fluid communication between the plunger barrel volume and a supply inlet, through which fluid is supplied to the pump inlet valve.

公开(公告)号：WO2019078881A1

公开(公告)日：2019-04-25

申请号：PCT/US2017/057571

申请日：2017-10-20

Applicant: CUMMINS INC. ,  BENSON, Donald J. ,  SABRI, Ahmad M.

Inventor： BENSON, Donald J. ,  SABRI, Ahmad M.

IPC: F02M55/00

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.

公开(公告)号：WO2008115796A1

公开(公告)日：2008-09-25

申请号：PCT/US2008/057011

申请日：2008-03-14

Applicant: CUMMINS INC. ,  BENSON, Donald J. ,  BUCHANAN, David L. ,  SIMMONS, Scott R.

Inventor： BENSON, Donald J. ,  BUCHANAN, David L. ,  SIMMONS, Scott R.

IPC: F01B11/02

CPC classification number: F02M59/442 ,  F02M59/02

Abstract: A fluid control device for use in a high pressure fluid system, the device including a device body with a cavity and a high pressure circuit, a plunger positioned for reciprocal movement in the cavity, and a leakage reduction cap mounted to the plunger for reducing fluid leakage flow. In one implementation, the leakage reduction cap includes a flexible portion positioned between the device body and the plunger, and defining an annular clearance gap between the leakage reduction cap and the device body. The flexible portion of the leakage reduction cap resiliently flexes radially outwardly in response to fluid pressure forces to reduce the annular clearance gap so as to minimize fluid leakage flow through the annular clearance gap.

Abstract translation: 一种用于高压流体系统的流体控制装置，该装置包括具有空腔和高压回路的装置主体，用于在空腔中往复运动的柱塞，以及安装到柱塞上以减少流体的泄漏减小帽 泄漏流量。 在一个实施方案中，泄漏减小帽包括位于装置主体和柱塞之间的柔性部分，并且在泄漏减小帽和装置主体之间限定环形间隙。 泄漏减小帽的柔性部分响应于流体压力弹性地径向向外弯曲，以减小环形间隙，从而使通过环形间隙的流体泄漏流量最小化。