公开(公告)号：US20050224046A1

公开(公告)日：2005-10-13

申请号：US10506662

申请日：2003-03-04

申请人： Mark Israel ,  John Hartley ,  Vincent Meneely

发明人： Mark Israel ,  John Hartley ,  Vincent Meneely

IPC分类号： F01L13/06 ,  F02D9/06 ,  F02D13/04

CPC分类号： F02D9/06 ,  F01L13/06 ,  F01L2760/00 ,  F02D13/04

摘要： An apparatus and method for retarding an engine having a cylinder with an exhaust valve, an intake valve, an intake stroke, an exhaust stroke, a compression stroke and an expansion stroke. The apparatus includes an exhaust brake and a compression release brake. The exhaust brake includes a variable exhaust restrictor, a pressure sensor for sensing pressure of exhaust gases and a controller operatively connected to the pressure sensor and to the exhaust restrictor. Opening of the exhaust restrictor is adjusted during operation of the apparatus so exhaust pressure is sufficient to cause exhaust valve float prior to bottom dead center of intake strokes of the cylinder, thereby enhancing operation of the compression release brake.

摘要翻译： 一种用于延迟发动机的装置和方法，所述发动机具有带排气门的气缸，进气门，进气冲程，排气冲程，压缩冲程和膨胀冲程。 该装置包括排气制动器和压缩释放制动器。 排气制动器包括可变排气限制器，用于感测废气压力的压力传感器和可操作地连接到压力传感器和排气限制器的控制器。 在设备运行期间调节排气限制器的打开，因此排气压力足以使排气阀在气缸的进气冲程的下死点之前浮起，从而增强压缩释放制动器的操作。

公开(公告)号：US06189504B1

公开(公告)日：2001-02-20

申请号：US09198522

申请日：1998-11-24

申请人： Mark Israel ,  James Judd ,  Kristin V. Emmons ,  Kevin J. Kinerson ,  Richard E. Vanderpoel

发明人： Mark Israel ,  James Judd ,  Kristin V. Emmons ,  Kevin J. Kinerson ,  Richard E. Vanderpoel

IPC分类号： F02D1304

CPC分类号： F02D13/04 ,  F01L13/06 ,  F02M26/01

摘要： An engine valve actuation system is disclosed, which is capable providing compression release engine braking in combination with exhaust gas recirculation while maintaining main exhaust and main intake valve events of constant magnitude during both positive power and engine braking. The system is also capable of providing a constant level of desired overlap between main exhaust and main intake valve events during both positive power and engine braking. The system may provide the foregoing functions by using first and second valve actuation subsystems to provide the full spectrum of exhaust valve motions. Both the first and second subsystems may receive an input motion from a valve train element. The first subsystem operates only when the engine braking system is enabled. The second subsystem operates both during positive power and during engine braking. When engine braking is enabled, the first and second subsystems work together to provide main exhaust, compression release and exhaust gas recirculation events. When the engine is in positive power mode, the second subsystem works alone, and is limited to providing main exhaust events. Methods of engine valve actuation are also disclosed.

摘要翻译： 公开了一种发动机气门致动系统，其能够在排气再循环的同时提供压缩释放发动机制动，同时在正功率和发动机制动期间保持主排气和主进气门事件恒定的大小。 该系统还能够在正功率和发动机制动期间在主排气和主进气门事件之间提供恒定水平的期望重叠。 该系统可以通过使用第一和第二阀致动子系统提供上述功能来提供全谱排气门运动。 第一和第二子系统都可以接收来自气门机构元件的输入运动。 第一个子系统仅在发动机制动系统启用时才起作用。 第二个子系统在正功率和发动机制动期间都运行。 当启动发动机制动时，第一和第二子系统一起工作以提供主排气，压缩释放和废气再循环事件。 当发动机处于正功率模式时，第二个子系统单独工作，并且限于提供主排气事件。 还公开了发动机气门致动的方法。

公开(公告)号：US06170474B2

公开(公告)日：2001-01-09

申请号：US09165364

申请日：1998-10-02

申请人： Mark Israel

发明人： Mark Israel

IPC分类号： F02M2507

CPC分类号： F02D21/08 ,  F02D13/04 ,  F02M26/01

摘要： In an internal combustion engine braking system which may provide compression release braking and/or exhaust braking, methods and systems are disclosed of controlling the overlap between an exhaust gas recirculation event and an intake valve event to optimize engine braking at various engine operating speeds. Optimization may be achieved by selectively advancing and retarding the opening and closing of an exhaust valve for exhaust gas recirculation. The opening and closing of the exhaust valve may be carried out responsive to the monitored levels of such engine parameters as: exhaust manifold pressure, exhaust manifold temperature, cylinder pressure, and/or cylinder temperature. Various engine parameters may be monitored. Control of exhaust gas recirculation may be responsive thereto, such that a monitored parameter does not exceed a predetermined level.

摘要翻译： 在可提供压缩释放制动和/或排气制动的内燃机制动系统中，公开了控制废气再循环事件和进气门事件之间的重叠的方法和系统，以在各种发动机运转速度下优化发动机制动。 可以通过选择性地推进和延迟用于废气再循环的排气门的打开和关闭来实现优化。 排气阀的打开和关闭可以响应于诸如排气歧管压力，排气歧管温度，气缸压力和/或气缸温度的这种发动机参数的监测水平来执行。 可以监视各种引擎参数。 废气再循环的控制可以对其进行响应，使得所监测的参数不超过预定水平。

公开(公告)号：US5996550A

公开(公告)日：1999-12-07

申请号：US892312

申请日：1997-07-14

申请人： Mark Israel ,  Joseph M. Vorih

发明人： Mark Israel ,  Joseph M. Vorih

IPC分类号： F01L1/24 ,  F01L9/02 ,  F01L13/06 ,  F02D13/04

CPC分类号： F02D13/04 ,  F01L13/065

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 hydraulic linkage may comprise means for resetting or clipping the displacement of the engine valves into the engine cylinder following a compression release event. The hydraulic linkage may also limit the displacement of the engine valves into the engine cylinder for main exhaust and/or other valve events, as well as limit the overlap between a main exhaust valve event and an intake valve event.

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。 液压联动装置可以包括用于在压缩释放事件之后复位或限制发动机气门到发动机气缸中的位移的装置。 液压联动装置还可以限制主排气和/或其他阀事件的发动机气缸到发动机气缸的位移，并且限制主排气门事件和进气门事件之间的重叠。

公开(公告)号：US5462025A

公开(公告)日：1995-10-31

申请号：US314413

申请日：1994-09-28

申请人： Mark Israel ,  Neil E. Fuchs

发明人： Mark Israel ,  Neil E. Fuchs

IPC分类号： F01L13/06 ,  F02D13/04

CPC分类号： F02D13/04 ,  F01L13/065

摘要： The relatively complex and expensive "control valves", which are conventionally used in certain compression release engine brakes for such purposes as filling, isolating, and venting the high pressure portions of the hydraulic circuits in the engine brake, are eliminated and more direct means are provided for performing these functions. In brakes having a mechanism for resetting each slave piston, the high pressure portion of the circuit is filled through a selectively openable aperture in the slave piston. In brakes having a mechanism for automatically adjusting slave piston lash or for limiting ("clipping") the forward stroke of the slave piston, high pressure circuit fill is provided through a simple check valve. In systems in which hydraulic fluid is temporarily displaced from the high pressure circuit, a simple accumulator is provided to store hydraulic fluid for quick refill. A single such accumulator may replace multiple control valves.

摘要翻译： 消除了相对复杂和昂贵的“控制阀”，其通常用于某些压缩释放发动机制动器，用于诸如填充，隔离和排放发动机制动器中的液压回路的高压部分的目的，并且更直接的装置 用于执行这些功能。 在具有用于复位每个从动活塞的机构的制动器中，电路的高压部分通过从动活塞中的选择性可打开的孔填充。 在具有用于自动调整从动活塞襟翼或限制（“限制”）从动活塞的前进行程的机构的制动器中，通过简单的止回阀提供高压回路填充。 在液压油临时从高压回路中移位的系统中，提供简单的储油器以存储用于快速补充的液压流体。 单个这样的蓄能器可以替代多个控制阀。