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1. 发明申请

WO2007084690A3 OPTIMIZED EXHAUST AFTER-TREATMENT INTEGRATION 审中-公开
公开(公告)号：WO2007084690A3
公开(公告)日：2007-07-26
申请号：PCT/US2007/001480
申请日：2007-01-19
申请人： CUMMINS, INC. , FRAZIER, Tim
发明人： FRAZIER, Tim
IPC分类号： F01N3/20
摘要： Through the use transfer functions, or other modeling types, directed toward the individual operation of an engine and after-treatment subsystems, an optimizer determines the trade-offs between fuel consumption, urea consumption, and reduction of NOx and PM emissions for each component of the integrated system. Evaluation of these trade-offs permits the optimizer to dictate how each component should be controlled, or adjusted, to achieve optimal fuel (and. urea) consumption while meeting the constraints bounding the solution. Response characteristics can be triggered. by adjusting certain engine operating levers in order to achieve optimal performance of the integrated system.

2. 发明申请

WO2008137745A3 FUEL INJECTOR ASSEMBLY WITH INJECTOR SEAL RETENTION 审中-公开
公开(公告)号：WO2008137745A3
公开(公告)日：2008-11-13
申请号：PCT/US2008/062503
申请日：2008-05-02
申请人： CUMMINS INC. , MORRIS, Corydon
发明人： MORRIS, Corydon
IPC分类号： F02M61/14
摘要： A fuel injector assembly with injector seal retention includes a fuel injector body including an injector nozzle housing disposed at a distal end of the fuel injector body. The injector body is adapted with a grooved portion to securely capture an injector seal to prevent the loss of the injector seal during installation and/or removal of the fuel injector assembly into an engine cylinder head.

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

WO2007002787A1 FUEL INJECTOR WITH PIEZOELECTRIC ACTUATOR PRELOAD 审中-公开
标题翻译：燃油喷射器与压电致动器PRELOAD
公开(公告)号：WO2007002787A1
公开(公告)日：2007-01-04
申请号：PCT/US2006/025252
申请日：2006-06-28
申请人： CUMMINS INC. , RAUZNITZ, Peter , BUCHANAN, David, L. , PETERS, Lester, L.
发明人： RAUZNITZ, Peter , BUCHANAN, David, L. , PETERS, Lester, L.
IPC分类号： F02M51/06 , B05B3/00 , B05B1/08
CPC分类号： F02M47/027 , F02M61/167 , F02M63/0026 , F02M63/0031
摘要： An piezoelectric actuated injector is provided which includes a nozzle valve element, a control volume, and an injection control valve including a control valve member for controlling fuel flow from the control volume so as to control nozzle valve movement. Importantly, the injector includes a preload chamber positioned along an injection control valve member for receiving high pressure fuel. The high pressure fuel acts on the injection control valve member to apply a preload force to supply a preload force to the stack of piezoelectric elements thereby ensuring more accurate control over fuel injection timing and metering.
摘要翻译：提供一种压电致动的喷射器，其包括喷嘴阀元件，控制体积和喷射控制阀，其包括用于控制来自控制体积的燃料流量以控制喷嘴阀运动的控制阀构件。重要的是，喷射器包括沿着喷射控制阀构件定位以接收高压燃料的预压室。高压燃料作用在喷射控制阀构件上以施加预载力，以向压电元件堆提供预载力，从而确保对燃料喷射正时和计量的更精确的控制。

5. 发明申请

WO2007084691A2 SYSTEM AND METHOD FOR NOx REDUCTION OPTIMIZATION 审中-公开
标题翻译：用于NOx还原优化的系统和方法
公开(公告)号：WO2007084691A2
公开(公告)日：2007-07-26
申请号：PCT/US2007/001481
申请日：2007-01-19
申请人： CUMMINS, INC. , FEDERLE, Ken R.
发明人： FEDERLE, Ken R.
IPC分类号： F01N3/00 , F01N3/10
CPC分类号： F02D41/005 , F01N3/208 , F01N2610/02 , F01N2610/146 , F01N2900/08 , F01N2900/102 , F01N2900/12 , F01N2900/1812 , F01N2900/1814 , F02D41/0235 , F02D41/1406 , F02D2200/0625 , Y02T10/24 , Y02T10/47
摘要： An engine controller determines the cost of operating a combustion engine and the cost of operating an emissions after-treatment device. Accordingly, the engine controller adjusts parameters for operation of the engine and the after-treatment device to ensure cost-effective use of the engine and the after-treatment device while complying with exhaust emissions requirements. In particular, the engine controller receives the price of fuel consumed by the engine and the price of reductant used by the after-treatment device to determine the respective cost of operation. Specifically, the fuel is diesel fuel used in a diesel engine; the reductant is urea use in a urea-based Selective Catalytic Reduction (SCR) system; and the regulated exhaust emissions is nitrogen oxide (NOx) emissions. The engine operating parameters may include cooled exhaust gas recirculation airflow, fuel injection timing, fuel injection pressure, and air-to-fuel ratio. The SCR system operating parameters may include the volume of urea injected.
摘要翻译：发动机控制器确定操作内燃机的成本和操作排放后处理装置的成本。因此，发动机控制器调整用于发动机和后处理装置的运转的参数，以确保在符合废气排放要求的同时对发动机和后处理装置进行成本有效的使用。特别地，发动机控制器接收发动机消耗的燃料的价格和后处理装置使用的还原剂的价格，以确定各自的操作成本。具体来说，燃料是用于柴油发动机的柴油燃料; 还原剂是尿素选择性催化还原（SCR）系统中的尿素使用; 并且调节废气排放是氮氧化物（NOx）排放。发动机操作参数可以包括冷却的废气再循环气流，燃料喷射正时，燃料喷射压力和空气 - 燃料比。 SCR系统操作参数可以包括注入的尿素的体积。

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