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    • 3. 发明申请
    • LOW RESTRICTION EXHAUST BRAKE
    • 低限制排气制动
    • WO1998024671A1
    • 1998-06-11
    • PCT/US1997022431
    • 1997-12-03
    • DIESEL ENGINE RETARDERS, INC.
    • DIESEL ENGINE RETARDERS, INC.SCHAEFER, NormanDAVIES, Gregory, T., H.
    • B60T11/10
    • F02D9/101F02D9/06
    • An exhaust brake (10) for an internal combustion engine is disclosed. The internal surfaces of the exhaust brake (10) are aerodynamically shaped and sized to reduce the incidence of turbulent flow through the exhaust brake (10). The shape of the internal passage (102) through the brake housing (100) may be dictated by the requirement of maintaining as close to a laminar flow through the passage (102) as possible when the brake valve (200) is open. The ideal brake housings (100) of the internal passage (102) may be determined for exhaust brakes of various shapes and sizes. The ideal shapes may be typified as having non-uniform wall thicknesses. The ideal shapes of the internal brake surfaces, including that of the valve (200), may also be typified by the elimination of square edges (which trigger turbulence). Ideal flow through the exhaust brake (10) may also be obtained by the reduction of bulk in the exhaust flow (minimization of the profile of the valve (200) in the flow when the valve (200) is open). The valve (200) preferably has a tapered or airfoil profile, which may help reduce the valve's (200) contribution to turbulent flow in the brake (10).
    • 公开了一种用于内燃机的排气制动器(10)。 排气制动器(10)的内表面是空气动力学形状和尺寸,以减少通过排气制动器(10)的湍流的入射。 通过制动器壳体(100)的内部通道(102)的形状可以由在制动阀(200)打开时尽可能保持尽可能靠近通过通道(102)的层流的要求来规定。 可以为各种形状和尺寸的排气制动器确定内部通道(102)的理想制动器壳体(100)。 理想的形状可以典型地具有不均匀的壁厚。 内部制动器表面的理想形状,包括阀门(200)的形状也可以通过消除方形边缘(触发湍流)来代表。 也可以通过减少废气流中的体积来获得通过排气制动器(10)的理想流量(当阀门(200)打开时)使流体中的阀门(200)的轮廓最小化。 阀(200)优选地具有锥形或翼型轮廓,其可以有助于减小阀(200)对制动器(10)中的湍流的贡献。
    • 5. 发明申请
    • LOST MOTION FULL AUTHORITY VALVE ACTUATION SYSTEM
    • 消失运动全权阀门驱动系统
    • WO9923363A8
    • 1999-08-05
    • PCT/US9823489
    • 1998-11-04
    • DIESEL ENGINE RETARDERS INC
    • VORIH JOSEPH MISRAEL MARK A
    • F01L9/02F01L13/00
    • F01L9/02F01L13/00
    • A lost motion valve actuation system utilizing a single solenoid valve (105) or trigger valve (80) to vary the timing of the intake (26) and exhaust (56) valves for a cylinder of an internal combustion engine. The solenoid controls the oil supply (100) to the tappets (20, 50), which in turn, determine valve motion in response to a camshaft lobe. The system allows independent control of each valve and provides for advanced features such as enhanced intake air swirl, two-valve or four-valve operation and staggered valve opening. The invention provides for valve operation even in the event of a total loss of system hydraulic pressure. The invention provides the practical benefits of a fully-variable system while preserving the security and reliability of a mechanical, cam-driven valve train. The invention provides for filling the exhaust and intake tappets (20, 50) independently without connecting their respective hydraulic circuits.
    • 一种使用单个电磁阀(105)或触发阀(80)来改变内燃机气缸的进气(26)和排气(56)气门正时的空动气门致动系统。 螺线管控制向挺杆(20,50)供油(100),该挺杆又响应于凸轮轴凸角确定阀的运动。 该系统允许对每个阀门进行独立控制,并提供先进的功能,如强化进气漩涡,双阀门或四阀门操作以及错开的阀门开启。 本发明即使在系统液压完全丧失的情况下也提供阀操作。 本发明提供了全变量系统的实际益处,同时保持机械凸轮驱动气门机构的安全性和可靠性。 本发明提供独立地填充排气和进气挺杆(20,50)而不连接它们各自的液压回路。
    • 7. 发明申请
    • SYSTEM AND METHOD OF EXHAUST BRAKE CONTROL
    • 排气制动控制系统及方法
    • WO1998024672A1
    • 1998-06-11
    • PCT/US1997022433
    • 1997-12-03
    • DIESEL ENGINE RETARDERS, INC.
    • DIESEL ENGINE RETARDERS, INC.SCHAEFER, Norman
    • B60T11/10
    • B60T13/58F02D9/06
    • A system (10) and method for controlling a vacuum operated exhaust brake (410). A vehicle may be provided with service brake assistance (200) and an exhaust brake (410), each of which may be driven by a common vacuum source (100). In the event the available vacuum is likely to be insufficient to meet the demand of the service brake assistance system (200), the exhaust brake (410) may be selectively isolated from the vacuum source (100). Exhaust brake (410) isolation may be responsive to a sensed vacuum parameter, such as the magnitude of the vacuum and/or the rate of change of the vacuum. Vacuum communication between the exhaust brake (410) and the vacuum source may be reestablished responsive to the sensed vacuum parameter.
    • 一种用于控制真空操作的排气制动器(410)的系统(10)和方法。 车辆可以设置有行车制动辅助件(200)和排气制动器(410),每个都可以由共同的真空源(100)驱动。 在可用的真空度可能不足以满足服务制动辅助系统(200)的要求的情况下,排气制动器(410)可以与真空源(100)选择性隔离。 排气制动器(410)隔离可以响应于感测的真空参数,例如真空的大小和/或真空的变化率。 排气制动器(410)和真空源之间的真空连通可以响应于所感测的真空参数重新建立。
    • 9. 发明申请
    • INTERNAL COMBUSTION ENGINES WITH COMBINED CAM AND ELECTRO-HYDRAULIC ENGINE VALVE CONTROL
    • 具有组合式凸轮和液压发动机阀门控制的内燃机
    • WO1997006355A1
    • 1997-02-20
    • PCT/US1996012839
    • 1996-08-02
    • DIESEL ENGINE RETARDERS, INC.
    • DIESEL ENGINE RETARDERS, INC.HU, Haoran
    • F01L09/02
    • F01L1/181F01L1/08F01L1/143F01L1/2422F01L1/462F01L9/021F01L9/025F01L13/06F01L13/065F01L2001/34446F01L2105/00
    • An internal combustion engine has electrically controlled hydraulic linkages (64) between engine cams (40) and engine cylinder valves (30). If it is desired to skip a cam lobe (42a, 42b, 42c) or to modify the response of an engine cylinder valve to a cam lobe (42a, 42b, 42c), hydraulic fluid is selectively released from the associated hydraulic linkage (64) to permit lost motion between the cam (40) and the engine cylinder valve (30). Electrically controlled hydraulic fluid valves (100) are used to produce the selective release of hydraulic fluid from the hydraulic linkages (64). The mode of operation of the engine can be changed (e.g., from positive power mode to compression release engine braking mode or vice versa), or more subtle changes can be made to modify the timing and/or extent of engine cylinder valve openings to optimize engine performance for various engine or vehicle operating conditions (e.g., different engine or vehicle speeds).
    • 内燃机在发动机凸轮(40)和发动机气缸阀(30)之间具有电控液压联动装置(64)。 如果希望跳过凸轮凸角(42a,42b,42c)或者将发动机气缸阀的响应改变为凸轮凸角(42a,42b,42c),液压流体从相关联的液压联动装置(64 )以允许凸轮(40)和发动机气缸阀(30)之间的运动失调。 电动液压流体阀(100)用于产生液压连杆(64)的液压流体的选择性释放。 可以改变发动机的运行模式(例如,从正功率模式到压缩释放发动机制动模式,反之亦然),或者可以进行更微妙的变化来改变发动机气缸阀门开度的时​​间和/或程度以优化 发动机性能适用于各种发动机或车辆运行条件(例如不同的发动机或车辆速度)。