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1. 发明申请

WO2021183117A1 COMPACT OPPOSED PUMP 审中-公开
公开(公告)号：WO2021183117A1
公开(公告)日：2021-09-16
申请号：PCT/US2020/021950
申请日：2020-03-11
申请人： CUMMINS INC. , BENHAM, Eric, A. , UNAL, Mustafa, Utku , BENSON, Donald, J. , MAGNUSON, Samuel, David, Griffith , MYSER, Benjamin, Scott
发明人： BENHAM, Eric, A. , UNAL, Mustafa, Utku , BENSON, Donald, J. , MAGNUSON, Samuel, David, Griffith , MYSER, Benjamin, Scott
IPC分类号： F02M43/02 , F02M43/00 , F04B9/00 , F04B9/04
摘要： The present disclosure provides a high-pressure fuel pump having barrel sets comprising offset, opposing barrel units within the same plane and having plungers disposed therein. The high-pressure fuel pump further includes a camshaft having at least one offset lobe and a cam ring encircling the lobe and in contact with the plungers, which translate the rotational movement of the camshaft to longitudinal movement of the plungers, controlling inflow, compression, and outflow of fuel within the pump.

2. 发明申请

WO2019078881A1 FUEL INJECTOR WITH FLEXIBLE MEMBER 审中-公开
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
申请人： CUMMINS INC. , BENSON, Donald J. , SABRI, Ahmad M.
发明人： BENSON, Donald J. , SABRI, Ahmad M.
IPC分类号： F02M55/00
摘要： 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.

3. 发明申请

WO2008115796A1 LOW LEAKAGE PLUNGER ASSEMBLY FOR A HIGH PRESSURE FLUID SYSTEM 审中-公开
标题翻译：用于高压流体系统的低泄漏排量组件
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
申请人： CUMMINS INC. , BENSON, Donald J. , BUCHANAN, David L. , SIMMONS, Scott R.
发明人： BENSON, Donald J. , BUCHANAN, David L. , SIMMONS, Scott R.
IPC分类号： F01B11/02
CPC分类号： F02M59/442 , F02M59/02
摘要： 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.
摘要翻译：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。

4. 发明申请

WO0179685A3 GASEOUS AND LIQUID FUEL INJECTOR WITH A TWO-WAY HYDRAULIC FLUID CONTROL VALVE 审中-公开
标题翻译：气体和液体燃油喷射器与两路液压流体控制阀
公开(公告)号：WO0179685A3
公开(公告)日：2002-02-28
申请号：PCT/CA0100545
申请日：2001-04-18
申请人： WESTPORT RES INC , TOUCHETTE ALAIN M J , DOUVILLE BRADLEY D , BAKER SIMON M , PETERS LESTER L , PERR JULIUS , GHUMAN AMARJIT S , BENSON DONALD J
发明人： TOUCHETTE ALAIN M J , DOUVILLE BRADLEY D , BAKER SIMON M , PETERS LESTER L , PERR JULIUS , GHUMAN AMARJIT S , BENSON DONALD J
IPC分类号： F02M21/02 , F02D19/02 , F02D19/10 , F02D41/20 , F02D41/38 , F02M25/00 , F02M37/00 , F02M43/02 , F02M43/04 , F02M45/08 , F02M47/00 , F02M47/02 , F02M47/04 , F02M57/02 , F02M59/10 , F02M61/04 , F02M61/10 , F02M61/16
CPC分类号： F02D19/10 , F02D19/0694 , F02M21/0254 , F02M21/0263 , F02M43/02 , F02M43/04 , F02M45/086 , F02M47/027 , F02M47/043 , F02M47/046 , F02M57/025 , F02M59/105 , Y02T10/32 , Y02T10/36
摘要： A hydraulically actuated dual fuel injector (1) separately injects a gaseous fuel and a liquid fuel into a combustion chamber of an internal combustion engine. The injector comprises: (a) an injector body; (b) a hydraulic fluid inlet port (7) for a pressurized hydraulic fluid, said hydraulic fluid being of sufficient pressure to maintain sealing and to prevent leakage of the gaseous fuel into the hydraulic fluid; (c) a first liquid fuel inlet port (6) for a first liquid fuel; (d) a first injection valve (16) disposed within the injector body fluidly connected to the first fuel inlet port (6) for controlling injection of the first liquid fuel through a first fuel ejection port (5); (e) a second inlet port (23) for a second gaseous fuel; (f) a second injection valve (17) fluidly connected to the second inlet port (23) for controlling injection of the second gaseous fuel through a second fuel ejection port (4); (g) a first two-way control (3) valve which controls the flow of the hydraulic fluid to actuate the first injection valve (16); (h) a second control valve (2) which controls the flow of the hydraulic fluid to actuate the second injection valve (17); (i) a metering device (15) within the injector body for metering the amount of first liquid fuel injected by the first injection valve (16); and (j) a fluid seal cavity (22) in the injector body which prevents leakage of the second gaseous fuel.
摘要翻译：液压致动的双燃料喷射器（1）分别将气体燃料和液体燃料喷射到内燃机的燃烧室中。喷射器包括：（a）喷射器主体; （b）用于加压液压流体的液压流体入口（7），所述液压流体具有足够的压力以保持密封并防止气体燃料泄漏到液压流体中; （c）用于第一液体燃料的第一液体燃料入口（6）; （d）设置在与第一燃料入口（6）流体连接的喷射器主体内的第一喷射阀（16），用于控制通过第一燃料喷射口（5）喷射第一液体燃料; （e）用于第二气态燃料的第二入口端口（23）（f）流体连接到第二入口（23）的第二喷射阀（17），用于控制通过第二燃料喷射口（4）喷射第二气体燃料; （g）第一双向控制（3）阀，其控制所述液压流体的流动以致动所述第一喷射阀（16）; （h）第二控制阀（2），其控制所述液压流体的流动以致动所述第二喷射阀（17）; （i）喷射器主体内的计量装置（15），用于计量由第一喷射阀（16）喷射的第一液体燃料的量; 和（j）喷射器主体中的流体密封腔（22），其防止第二气态燃料的泄漏。

5. 发明申请

WO2022036230A1 SLIDING CAM FOLLOWER 审中-公开
公开(公告)号：WO2022036230A1
公开(公告)日：2022-02-17
申请号：PCT/US2021/045957
申请日：2021-08-13
申请人： CUMMINS INC. , MAGNUSON, Samuel David Griffith , BENSON, Donald J. , STATE, Matthew B. , BENHAM, Eric A. , LESIN, Aleksandr E. , SETHURAMAN, Karthik
发明人： MAGNUSON, Samuel David Griffith , BENSON, Donald J. , STATE, Matthew B. , BENHAM, Eric A. , LESIN, Aleksandr E. , SETHURAMAN, Karthik
IPC分类号： F02M41/00 , F02M43/02 , F02M45/00 , F02M51/04 , F02M57/02 , F04B1/0426
摘要： The present disclosure provides a high-pressure fuel pump including a barrel unit, a plunger, and a camshaft assembly having an eccentric cam lobe including a surface of the lobe. A follower is provided between the plunger and the surface of the lobe of the camshaft assembly to facilitate translation between the rotational movement of the camshaft assembly to axial movement of the plunger. The follower includes arcuate surfaces configured to mate with corresponding arcuate surfaces of the lobe of the cam shaft assembly and the plunger, respectively.

6. 发明申请

WO2021025666A1 METHOD FOR CONTROLLING PRESSURE WITH A DIRECT METERED PUMP BASED ON ENGINE SUBCYCLE MASS BALANCE 审中-公开
公开(公告)号：WO2021025666A1
公开(公告)日：2021-02-11
申请号：PCT/US2019/044891
申请日：2019-08-02
申请人： CUMMINS INC. , PEAVLER, Paul , BENSON, Donald J. , CAREY, David Michael , VIOLA, Timothy J.
发明人： PEAVLER, Paul , BENSON, Donald J. , CAREY, David Michael , VIOLA, Timothy J.
IPC分类号： F02D41/02 , F02D41/30 , F02M51/04
摘要： 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.

7. 发明申请

WO2018081115A1 FUEL PUMP PRESSURE CONTROL STRUCTURE AND METHODOLOGY 审中-公开
标题翻译：燃油泵压力控制结构和方法
公开(公告)号：WO2018081115A1
公开(公告)日：2018-05-03
申请号：PCT/US2017/058078
申请日：2017-10-24
申请人： CUMMINS INC. , BENSON, Donald J. , PEAVLER, Paul
发明人： BENSON, Donald J. , PEAVLER, Paul
IPC分类号： F02D41/38 , F02M59/02 , F02M59/08 , F02M63/02
摘要： 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.
摘要翻译：提供了一种方法和系统，用于控制具有泵送元件的泵，所述泵送元件构造成将加压燃料提供给联接到多个燃料喷射器的共轨蓄积器，所述多个燃料喷射器构造成将燃料喷射到相应的多个发动机，包括：接收指示所述蓄能器中的当前燃料压力的轨道压力值; 以及通过在泵送元件的每个潜在泵送事件期间控制泵送元件的操作来响应所接收的至少一个轨道压力值，以在至少一些潜在泵送事件期间产生实际泵送事件以使轨道压力值保持在所希望的范围以及至少一个提高泵的整体效率，减少由泵产生的可听见的噪声，增加泵的可靠性并降低多个燃料喷射器处的喷射压力变化。

8. 发明申请

WO2022025882A1 METHOD AND SYSTEM FOR MEASURING FUELING QUANTITY VARIATION DURING MULTIPULSE FUEL INJECTION EVENT 审中-公开
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
申请人： CUMMINS INC. , JALAL, Syed , BENSON, Donald J. , CAREY, David Michael , MANGLAM, Sanjay
发明人： JALAL, Syed , BENSON, Donald J. , CAREY, David Michael , MANGLAM, Sanjay
IPC分类号： F02D41/40
摘要： 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.

9. 发明申请

WO2021101566A1 PUMP PLUNGER ASSEMBLY FOR IMPROVED PUMP EFFICIENCY 审中-公开
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
申请人： CUMMINS INC. , BENSON, Donald J. , DOSZPOLY, Bela , BENHAM, Eric A. , SABRI, Ahmid M. , DUNCAN, Richard E.
发明人： BENSON, Donald J. , DOSZPOLY, Bela , BENHAM, Eric A. , SABRI, Ahmid M. , DUNCAN, Richard E.
IPC分类号： F02M59/44
摘要： 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.

10. 发明申请

WO2009114655A1 HIGH PRESSURE COMMON RAIL FUEL SYSTEM WITH GAS INJECTION 审中-公开
标题翻译：高压公用轨道燃油系统与气体注入
公开(公告)号：WO2009114655A1
公开(公告)日：2009-09-17
申请号：PCT/US2009/036883
申请日：2009-03-12
申请人： LUCAS, Michael, A. , TEGNELIUS, Lars , BENSON, Donald, J. , CUMMINS INTELLECTUAL PROPERTIES, INC.
发明人： LUCAS, Michael, A. , TEGNELIUS, Lars , BENSON, Donald, J.
IPC分类号： F02D19/08 , F02M59/10 , F02M59/44 , F02M55/02 , F02M21/02
CPC分类号： F02M43/00 , F02B3/06 , F02D19/0605 , F02D19/0623 , F02D19/0642 , F02D19/0684 , F02D19/0694 , F02D19/08 , F02D19/081 , F02M63/0225 , F02M67/005 , Y02T10/36
摘要： A high pressure common rail fuel system is provided including a fuel supply, a high pressure pump assembly fluidly connected to receive fuel from the fuel supply, and a gas supply system fluidly connected to provide gas to the high pressure pump assembly to create a high pressure gas fuel mixture. A common rail fuel system is fluidly connected to the high pressure pump assembly to receive the high pressure gas fuel mixture.
摘要翻译：提供了一种高压共轨燃料系统，其包括燃料供应，流体连接以从燃料供应接收燃料的高压泵组件和流体连接以将气体提供给高压泵组件以产生高压的气体供应系统燃气混合气共轨燃料系统流体地连接到高压泵组件以接收高压气体燃料混合物。

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