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    • 7. 发明授权
    • Compression brake actuation system and method
    • 压缩制动器驱动系统及方法
    • US06446598B1
    • 2002-09-10
    • US09734455
    • 2000-12-11
    • Steven J. FunkeScott A. Leman
    • Steven J. FunkeScott A. Leman
    • F02D1304
    • F01L13/065F01L2760/004
    • Compression brake systems using “back-fill” between combustion cylinders or requiring an exhaust valve to be opened twice during a braking cycle require brake actuation systems able to maintain control over the exhaust valve during different loading conditions. In a first opening event where a piston is at or near bottom dead center, pressures in the combustion cylinder are low. During a second opening event near top dead center pressures are higher. Movement of the exhaust valve is controlled by delivery of fluid to a brake actuator piston. Fluid delivery is slowed as the brake actuator piston moves to cover a first cylinder port and uncover a second cylinder port.
    • 在制动循环期间,使用燃烧气缸之间的“填充”或要求排气阀打开两次的压缩制动系统需要能够在不同负载条件下对排气阀进行控制的制动器致动系统。 在活塞处于或接近下死点的第一开启事件中,燃烧气缸中的压力低。 在靠近上死点的第二次开放事件中,压力较高。 通过将流体输送到制动致动器活塞来控制排气阀的移动。 当制动致动器活塞移动以覆盖第一气缸端口并露出第二气缸端口时,流体输送减慢。
    • 9. 发明授权
    • Electronic control of engine braking cycle
    • 发动机制动循环的电子控制
    • US06609495B1
    • 2003-08-26
    • US09952823
    • 2001-09-14
    • Sean O. CornellScott A. LemanSteven J. Funke
    • Sean O. CornellScott A. LemanSteven J. Funke
    • F02D1304
    • F02D13/04
    • 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.
    • 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。