公开(公告)号：US06681740B1

公开(公告)日：2004-01-27

申请号：US10338427

申请日：2003-01-08

申请人： Michael A. Majewski ,  James T. Beaucaire

发明人： Michael A. Majewski ,  James T. Beaucaire

IPC分类号： F02D1304

CPC分类号： F02B23/0672 ,  F02D41/12 ,  F02D41/3836 ,  F02D2200/0602 ,  F02D2250/31 ,  Y02T10/125

摘要： A control strategy for mitigation of the effect of increased engine back-pressure on fuel injectors (22) when an engine retarder is activated to slow the engine (10) of a motor vehicle. The strategy attenuates injection control pressure ICP of hydraulic fluid for the fuel injectors to a defined dwell pressure ICP_VRE_DWL, and once that dwell pressure has been attained, keeps the injection control pressure from exceeding it for the length of a dwell time ICP_DWL_TM. Upon elapse of the dwell time, the injection control pressure gradually increases above the dwell pressure using a pressure versus time map (54). When engine operating conditions call for greater injection control pressure while the retarder is activated, the strategy provides for greater injection control pressure using a pressure versus speed map (42).

摘要翻译： 一种控制策略，用于减轻当发动机减速器被启动以减慢机动车辆的发动机（10）时对发动机背压增加对燃料喷射器（22）的影响。 该策略将燃料喷射器的液压油的喷射控制压力ICP衰减到规定的停留压力ICP_VRE_DWL，并且一旦达到了停留压力，则可以使喷射控制压力超过其驻留时间ICP_DWL_TM的长度。 在停留时间过后，使用压力 - 时间图，注射控制压力逐渐增加到停留压力以上（54）。 当发动机运行条件需要更大的喷射控制压力，而减速器被激活时，该策略使用压力对速度图（42）提供更大的喷射控制压力。

公开(公告)号：US06609495B1

公开(公告)日：2003-08-26

申请号：US09952823

申请日：2001-09-14

申请人： Sean O. Cornell ,  Scott A. Leman ,  Steven J. Funke

发明人： Sean O. Cornell ,  Scott A. Leman ,  Steven J. Funke

IPC分类号： F02D1304

CPC分类号： F02D13/04

摘要： A method of engine braking includes a initial step of determining whether fuel injector tip temperatures are at or above a pre-determined temperature. If the injector tip temperatures are below the pre-determined temperature, then the electronic control module commands performance of dual event engine braking. If the injector tip temperatures are at or above the pre-determined temperatures, then the electronic control module commands the performance of single event engine braking. Such a strategy can achieve higher overall engine braking horsepower without risking the potential catastrophic dangers associated with injector tip overheating.

摘要翻译： 发动机制动的方法包括确定燃料喷射器尖端温度是否在预定温度以上的初始步骤。 如果喷射器尖端温度低于预定温度，则电子控制模块命令执行双事件发动机制动。 如果喷油嘴的温度在预先确定的温度以上，那么电子控制模块就可以命令执行单事件发动机制动。 这样的策略可以实现更高的整体发动机制动功率，而不会引起与喷射头过热相关的潜在的灾难性危险。

公开(公告)号：US06553962B1

公开(公告)日：2003-04-29

申请号：US09630472

申请日：2000-08-02

申请人： Stephen George Russ ,  Robert Albert Stein ,  William Francis Stockhausen

发明人： Stephen George Russ ,  Robert Albert Stein ,  William Francis Stockhausen

IPC分类号： F02D1304

CPC分类号： F02D41/0087 ,  F02D13/06 ,  F02D41/123 ,  F02D2041/0012 ,  Y02T10/18

摘要： An automotive internal engine 8 is provided which includes an engine controller 70 cognizant of a desired deceleration condition for a vehicle and a combustion chamber 12 with a reciprocating piston 15 mounted therein. The piston has a top dead center and a bottom dead center position. A cam driven exhaust valve 14 is provided which can be selectively disabled to a closed position to deactivate the combustion chamber 12 in response to a signal given by the engine controller 70. A variable phase cam driven intake poppet valve 16 responsive to a signal given by the engine controller 70 is provided to selectively set the opening and closing operation of the intake poppet valve 16 to be generally symmetrical about one of the center positions during the first combustion chamber 12 deactivation during vehicle deceleration.

摘要翻译： 提供了一种汽车内部发动机8，其包括识别车辆所期望的减速条件的发动机控制器70和安装有往复运动活塞15的燃烧室12。 活塞具有上止点和下止点位置。 提供凸轮驱动的排气阀14，其可以选择性地禁用到关闭位置，以响应于由发动机控制器70给出的信号而使燃烧室12停用。可变相位凸轮驱动的进气提升阀16响应于由 发动机控制器70设置成在车辆减速期间在第一燃烧室12停用期间选择性地将进气提升阀16的打开和关闭操作大致对称地关于中心位置之一。

公开(公告)号：US06450144B2

公开(公告)日：2002-09-17

申请号：US09739960

申请日：2000-12-20

申请人： Robb Janak ,  Stephen Lak ,  Michael Bergmann

发明人： Robb Janak ,  Stephen Lak ,  Michael Bergmann

IPC分类号： F02D1304

CPC分类号： F01L13/065 ,  F01L1/08 ,  F01L1/181 ,  F01L13/06 ,  F01L2105/00 ,  F01L2760/004

摘要： An internal combustion engine may include a hydraulic linkage used to transfer motion from a valve train element, such as a cam, to an engine valve. Method and apparatus for selectively limiting the motion transferred by the hydraulic linkage from the valve train element to the engine valve are disclosed. The motion transferred by the hydraulic linkage may be limited by a means for resetting or clipping that is integrated into the rocker arm/shaft assembly provided in the valve train.

摘要翻译： 内燃机可以包括用于将运动从诸如凸轮的气门机构元件传递到发动机气门的液压联动装置。 公开了用于选择性地限制由液压连杆机构从气门机构传递到发动机气门的运动的方法和装置。 通过液压联动装置传递的运动可以通过集成到设置在气门机构中的摇臂/轴组件中的用于复位或限制的装置来限制。

公开(公告)号：US06283091B1

公开(公告)日：2001-09-04

申请号：US09482566

申请日：2000-01-14

申请人： John B. Bartel ,  Joseph H. Schmidt ,  Jeffrey S. Zsoldos

发明人： John B. Bartel ,  Joseph H. Schmidt ,  Jeffrey S. Zsoldos

IPC分类号： F02D1304

CPC分类号： F02D13/04 ,  F02D9/06 ,  F02D9/105 ,  F02D41/0007 ,  F02D41/12 ,  F02D41/38 ,  F02D2200/0606 ,  F02D2200/101 ,  F02D2250/41 ,  F02M53/043

摘要： An engine exhaust braking method and apparatus. The method includes injecting a predetermined amount of fuel per stroke into an engine cylinder during engine braking, wherein the predetermined amount of fuel cools the fuel injector nozzle, thereby allowing the engine braking to be performed without damage to the fuel injector nozzle due to excessive heat. The apparatus includes a fuel injector having a nozzle and capable of injecting a predetermined amount of fuel into an engine, and a processor connected to the fuel injector, with the processor monitoring engine operation and capable of causing the fuel injector to inject the predetermined amount of fuel into the engine, wherein a predetermined amount of fuel is injected into the engine to cool the fuel injector nozzle, thereby allowing the exhaust braking to be performed without damaging the fuel injector nozzle due to excessive heat.

摘要翻译： 发动机排气制动方法和装置。 该方法包括在发动机制动期间将每行程的预定量的燃料喷射到发动机气缸中，其中预定量的燃料冷却燃料喷射器喷嘴，从而允许发动机制动而不会由于过度的热而损坏燃料喷射器喷嘴 。 该装置包括具有喷嘴并且能够将预定量的燃料喷射到发动机中的燃料喷射器，以及连接到燃料喷射器的处理器，其中处理器监视引擎操作并且能够使燃料喷射器注入预定量的 燃料进入发动机，其中将预定量的燃料喷射到发动机中以冷却燃料喷射器喷嘴，从而允许执行排气制动而不会由于过多的热量而损坏燃料喷射器喷嘴。

公开(公告)号：US06240898B1

公开(公告)日：2001-06-05

申请号：US09172917

申请日：1998-10-15

申请人： Zdenek Meistrick ,  Vincent Pitzi

发明人： Zdenek Meistrick ,  Vincent Pitzi

IPC分类号： F02D1304

CPC分类号： F02D13/04 ,  F01L9/02 ,  F01L13/065 ,  F02M26/01

摘要： A valve actuating assembly for actuating at least one valve is disclosed. The valve actuating assembly includes a housing assembly, an actuating assembly for actuating at least one valve during a first valve operating event and a second valve operating event, and an assembly for modifying valve motion travel of the at least one valve during at least one of the first valve operating event and the second valve operating event. A system for providing exhaust gas recirculation and compression release braking in an engine is also disclosed.

摘要翻译： 公开了一种用于致动至少一个阀的阀致动组件。 阀致动组件包括壳体组件，用于在第一阀操作事件和第二阀操作事件期间致动至少一个阀的致动组件，以及用于在至少一个阀的至少一个中的至少一个阀中修改所述至少一个阀的阀运动行程的组件 第一个阀门操作事件和第二个阀门操作事件。 还公开了一种用于在发动机中提供废气再循环和压缩释放制动的系统。

公开(公告)号：US06216668B1

公开(公告)日：2001-04-17

申请号：US09440923

申请日：1999-11-16

申请人： David James Haugen

发明人： David James Haugen

IPC分类号： F02D1304

CPC分类号： F02D13/04 ,  G01M15/044

摘要： An internal combustion engine includes a plurality of cylinders, a plurality of fuel injectors, compression brake units operatively associated the cylinders, an engine speed sensor and an engine control unit (ECU) for controlling the fuel injectors and the compression brake unit as a function of at least sensed engine speed. A method of measuring performance of the engine includes running the engine at a specified speed under no load, setting to zero a rate of fuel flow delivered by a selected one of the fuel injectors associated with one of the cylinders associated with the compression brake unit, increasing by a first amount a rate of fuel flow delivered by the other of the fuel injectors so that the engine runs at the specified engine speed, activating the compression brake unit associated with the selected fuel injector so that the cylinder associated therewith absorbs power, and again increasing by a second amount a rate of fuel flow delivered by the other of the fuel injectors so that the engine runs at the specified engine speed. This second amount of fuel flow rate increase thereby represents a performance characteristic of the engine.

摘要翻译： 内燃机包括多个气缸，多个燃料喷射器，与气缸可操作地相关联的压缩制动单元，发动机转速传感器和用于控制燃料喷射器和压缩制动单元的发动机控制单元（ECU），其作为 至少感测发动机转速。 一种测量发动机性能的方法包括以无负载的特定速度运行发动机，将由与压缩制动单元相关的一个气缸相关联的所选燃料喷射器所输送的燃料流量设定为零， 由第一量增加由另一个燃料喷射器输送的燃料流量，使得发动机以指定的发动机转速运行，启动与所选择的燃料喷射器相关联的压缩制动单元，使得与其相关联的气缸吸收动力，以及 再次增加另一个燃料喷射器所传送的燃料流量的速率，使得发动机以指定的发动机转速运转。 该第二量的燃料流量增加因此表示发动机的性能特征。

公开(公告)号：US06213091B1

公开(公告)日：2001-04-10

申请号：US09528936

申请日：2000-03-21

申请人： David James Haugen

发明人： David James Haugen

IPC分类号： F02D1304

CPC分类号： F01L1/26 ,  F01L1/181 ,  F01L13/06 ,  F01L2105/00

摘要： An engine compression braking system includes an exhaust rocker arm pivotally supported on rocker shaft. One end of the rocker arm carries a roller which engages a camshaft which has a lost motion bump formed thereon. The other end of the rocker arm engages an exhaust valve stem assembly. A part of the rocker shaft engages a pressure operated piston. Extension of the piston moves the rocker shaft transversely to its axis, so that the rocker arm can selectively react to or ignore the lost motion portion bump. A pressure control system includes a solenoid operated valve controlled by an operator controlled switch, so that the piston selectively applies a light force or a very high force to the rocker arm rocker shaft, thus controlling the pivot point of the rocker arm.

摘要翻译： 发动机压缩制动系统包括枢转地支撑在摇臂上的排气摇臂。 摇臂的一端带有一个与凸轮轴接合的滚轮，该凸轮轴上形成有一个失去运动的凸块。 摇臂的另一端接合排气阀杆组件。 摇臂的一部分接合压力操作的活塞。 活塞的延伸将摇臂横向于其轴线移动，使得摇臂可以选择性地反应或忽略空转部分凸起。 压力控制系统包括由操作者控制的开关控制的电磁操作阀，使得活塞选择性地向摇臂摇臂轴施加轻力或非常高的力，从而控制摇臂的枢转点。

公开(公告)号：US06718940B2

公开(公告)日：2004-04-13

申请号：US09949937

申请日：2001-09-12

申请人： James N. Usko

发明人： James N. Usko

IPC分类号： F02D1304

CPC分类号： F01L13/06 ,  F01L1/181 ,  F01L1/24 ,  F02B3/06

摘要： The present invention is directed to an improved assembly for operating at least one exhaust valve and at least one intake valve in a cylinder in an engine. The assembly includes a rocker shaft, an intake rocker arm pivotally mounted on the rocker shaft for operating at least one intake valve of the engine cylinder, an exhaust rocker arm pivotally mounted on the rocker shaft for operating at least one exhaust valve of the engine cylinder. The improved assembly includes a lash adjusting assembly for adjusting a lash between at least one of the intake rocker arm and the at least one intake valve, and the exhaust rocker arm and the at least one exhaust valve. The improvement further includes a fluid supply assembly for supplying fluid to the lash adjusting assembly to operate the lash adjusting assembly. The improved assembly further includes a control assembly for controlling the operation of the supply assembly in response to predetermined engine operating conditions.

摘要翻译： 本发明涉及用于在发动机的气缸中操作至少一个排气门和至少一个进气门的改进的组件。 所述组件包括摇臂轴，可枢转地安装在所述摇杆上的进气摇臂，用于操作所述发动机气缸的至少一个进气门;枢转地安装在所述摇杆上的排气摇臂，用于操作所述发动机气缸的至少一个排气阀 。 改进的组件包括间隙调节组件，用于调节进气摇臂和至少一个进气门中的至少一个之间的间隙，以及排气摇臂和至少一个排气阀。 该改进还包括用于将流体供应到间隙调节组件以操作间隙调节组件的流体供应组件。 改进的组件还包括控制组件，用于响应于预定的发动机操作条件来控制供应组件的操作。

公开(公告)号：US06705282B2

公开(公告)日：2004-03-16

申请号：US10087029

申请日：2002-03-01

申请人： David S. Hlavac

发明人： David S. Hlavac

IPC分类号： F02D1304

CPC分类号： F02D13/04

摘要： In internal combustion engines that use hydraulic-fluid actuated fuel injectors, enhanced engine compression braking can be realized with simplified hydraulic control systems, by using fuel injector hydraulic fluid to open exhaust valves at or near the top of a compression stroke. Opening the exhaust valves at the top of a compression stroke wastes compressed gas to the atmosphere providing enhanced efficiency of engine compression braking. Using existing fuel injector high pressure fluid or engine oil to actuate a slave piston and thereby actuate the exhaust valve obviates the need for a separate, dedicated high-pressure oil delivery system for engine compression braking purposes.

摘要翻译： 在使用液压流体致动的燃料喷射器的内燃机中，通过使用燃料喷射器液压流体在压缩行程的顶部或附近打开排气阀，可以通过简化的液压控制系统实现增强的发动机压缩制动。 打开压缩行程顶部的排气阀将压缩气体浪费在大气中，从而提高发动机压缩制动的效率。 使用现有的燃料喷射器高压流体或发动机油来致动从动活塞并由此致动排气阀，从而避免需要用于发动机压缩制动目的的单独的专用高压输油系统。