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公开(公告)号：US06453873B1
公开(公告)日：2002-09-24
申请号：US09705074
申请日：2000-11-02
IPC分类号： F02D1304
CPC分类号： F01L13/065 , F01L2760/004 , Y10T477/814
摘要： A system and method for controlling combustion engine compression braking having the variable timing of the dwell period of at least one exhaust valve by an electronic control module within each one of the engine cylinders during a braking event as well as the variable timing of the commencement or onset of the braking event. The system and method thus facilitate the proper performance of the braking event as a function of engine speed and prevents interference or physical impact with the cam driving elements used for achieving the normal or regular exhaust valve event.
摘要翻译： 一种用于控制内燃发动机压缩制动的系统和方法，其在制动事件期间通过电子控制模块在每个发动机气缸内具有至少一个排气门的停留时间的可变定时以及开始的可变时间或 发生制动事件。 因此，该系统和方法便于作为发动机转速的函数的制动事件的适当性能，并防止与用于实现正常或常规排气阀事件的凸轮驱动元件的干扰或物理冲击。
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公开(公告)号：US06601563B2
公开(公告)日：2003-08-05
申请号：US10028848
申请日：2001-12-20
IPC分类号： F02D1304
摘要： Exhaust gas re-circulation is achieved internally in an internal combustion engine having intake and exhaust valves actuated by a camshaft. A controller monitors at least one engine parameter and automatically actuates an electrically actuated fluid operated brake actuator at a predetermined timing of movement of an engine piston to cause the actuator to maintain the exhaust valve at an intermediate position between a full open position and a closed position of the exhaust valve and cause exhaust gasses to be delivered from the exhaust manifold to the combustion chamber of the engine.
摘要翻译： 在具有由凸轮轴驱动的进气和排气阀的内燃机中，内部实现排气再循环。 控制器监视至少一个发动机参数，并且在发动机活塞的预定运动定时自动启动电动致动的流体操纵的制动器致动器，以使致动器将排气阀保持在完全打开位置和关闭位置之间的中间位置 并使废气从排气歧管传送到发动机的燃烧室。
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3.发明授权公开(公告)号：US06205975B1
公开(公告)日：2001-03-27
申请号：US09464835
申请日：1999-12-16
IPC分类号： F02D1304
摘要： The present invention provides a method and apparatus for controlling an actuation of a compression brake associated with a combustion engine. The engine includes a fluid circuit for delivering a fluid to the compression brake. The engine also includes a cylinder having an associated exhaust valve. The method includes the steps of establishing a desired timing of an actuation of the brake, determining an air pressure of the engine, and determining a desired fluid pressure in response to the timing and the air pressure.
摘要翻译： 本发明提供了一种用于控制与内燃机相关联的压缩制动器的致动的方法和装置。 发动机包括用于将流体输送到压缩制动器的流体回路。 发动机还包括具有相关联的排气阀的气缸。 该方法包括以下步骤：确定制动器的致动所需的定时，确定发动机的空气压力，以及响应于定时和空气压力确定期望的流体压力。
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公开(公告)号：US06971366B2
公开(公告)日：2005-12-06
申请号：US09939952
申请日：2001-11-30
CPC分类号： F01L13/065 , F01L9/02 , F01L2760/004 , F01L2800/00
摘要： Engine compression release brakes include some degree of lash between the brake actuation portion and the engine exhaust valve portion. The disclosed apparatus and method provides an integral lash adjuster that includes an adjusting screw that is threadably received by a slidable plunger. Rotation of the adjusting screw causes the plunger to slide relative to a plunger cavity and responsively modify the amount of lash.
摘要翻译： 发动机压缩释放制动器在制动器致动部分和发动机排气阀部分之间包括一定程度的间隙。 所公开的装置和方法提供了一种整体的间隙调节器，其包括由可滑动的柱塞螺纹接收的调节螺钉。 调节螺钉的旋转使柱塞相对于柱塞腔滑动，并且响应地改变间隙的量。
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公开(公告)号：US06622694B2
公开(公告)日：2003-09-23
申请号：US09917962
申请日：2001-07-30
IPC分类号： F02D1304
CPC分类号： F01L13/065 , F01L2800/00
摘要： A number of engine operating strategies have been developed that allow for engine braking when combustion is not needed. In these strategies, air within the engine cylinder is compressed by the cylinder piston; however, rather than introducing fuel into the cylinder to facilitate a combustion event, the cylinder is opened to an exhaust manifold and the compressed air is vented, and the energy is released by the engine. However, it has been learned that the venting of this compressed air from the engine can produce undesirable noise emissions. Thus, the present invention employs a dual exhaust valve lift strategy to reduce noise produced during engine braking while still allowing relatively high engine braking horsepowers to be achieved.
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