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    • 21. 发明授权
    • Continuously variable fan drive clutch arrangement
    • 连续可变的风扇驱动离合器装置
    • US5667045A
    • 1997-09-16
    • US532226
    • 1995-09-19
    • Gordon F. Cummings, III
    • Gordon F. Cummings, III
    • F01P7/04F16D43/284F16D67/04F16D25/02F16D43/25
    • F01P7/046F16D43/284F16D67/04F01P2025/04F01P2025/08F01P2025/13F01P2025/40
    • A clutch mechanism for a cooling fan of a size capable of fitting into the limited envelope available in an over-the-road diesel tractor. A compact housing has a belt drive input and an output connected to the fan hub. A wet clutch is included within the housing lubricated by oil from the engine lubrication system. The housing includes an internal positive displacement booster pump cooperating with a controllable valve in the oil return line to the engine sump. When it is desired to operate the clutch, the valve is controllably closed to restrict flow from the clutch mechanism to the engine sump line. The positive displacement pump thereupon causes an increase in pressure in a pressure chamber in the housing, which acts on an internal piston to translate the clutch in a continuously variable manner between engaged and disengaged conditions.
    • 一种用于冷却风扇的离合器机构,其尺寸能够安装在可用于越野柴油拖拉机的有限信封中。 紧凑的外壳具有皮带驱动输入和与风扇毂相连的输出。 由发动机润滑系统的油润滑的壳体中包含湿式离合器。 该壳体包括内部的容积式增量泵,其与在回油管路中的可控阀配合到发动机油底壳。 当需要操作离合器时,阀可控地关闭以限制从离合器机构到发动机油底壳管线的流动。 正排量泵随之引起壳体中的压力室中的压力增加,其作用在内部活塞上以在接合和分离状态之间以无级变化的方式平移离合器。
    • 22. 发明授权
    • Rotational control apparatus
    • 旋转控制装置
    • US5636719A
    • 1997-06-10
    • US373953
    • 1995-01-17
    • John B. DavisRobert C. BredtKent CarlsonDarren Reasy
    • John B. DavisRobert C. BredtKent CarlsonDarren Reasy
    • F01P7/08F16D25/0638F16D67/04H02K49/04F01P7/02F16D47/00
    • H02K49/046F01P7/085F16D25/0638F16D67/04
    • Rotational control apparatus in the forms of fan clutches (A, A') are shown including an eddy current drive (224). Specifically, the eddy current drive (224) includes a plurality of permanent magnets (226) mounted circumferentially spaced and with alternating polarity by a holder (228) to the input or output of the clutch (A, A') and a magnetically conductive ring (242) mounted to the other of the input or output of the clutch (A, A'). Thus, the output portion and the fan blades mounted thereto are driven at engine speeds when the clutch (A, A') is air actuated and are driven at a rotational speed less than engine speed by the eddy current drive (224) when the clutch (A, A') is not air actuated and without separate controls for the eddy current drive (224). A housing (62) comprises the output portion of the clutch (A) which is rotatably mounted by a bearing (58) to the hub portion (24) of a friction disc (28) which comprises the input portion of the clutch (A). In other forms, the output portion of the clutch (A') is in the form of a hub (20') rotatably mounted on a stationary shaft (24') and the input portion is in the form of a sheave (50') rotatable relative to the hub (20') and the shaft (24'). Additionally, the hub (20') can be braked by rotatably relating the hub (20') to the shaft (24'). In one form, the friction ring (252) includes peripheral gear teeth (256) in slideable gearing relation with gear teeth (250) formed in the housing (62) and is formed of fiber brake material to act as a dampener between the friction disc (28) and the housing (62) to absorb torsional vibration.
    • 示出了风扇离合器(A,A')形式的旋转控制装置,其包括涡流驱动器(224)。 具体地说,涡流驱动器(224)包括多个永磁体(226),该多个永久磁铁(226)通过保持器(228)与离合器(A,A')的输入或输出端周向间隔开并具有交替极性,并且具有导电环 (242),安装到离合器(A,A')的输入或输出中的另一个。 因此,当离合器(A,A')被空气致动时,安装在其上的输出部分和风扇叶片以发动机转速被驱动,并且当离合器(A,A')被驱动时,通过涡流驱动器(224)以小于发动机转速的转速被驱动 (A,A')不是空气致动的,并且没有用于涡流驱动器(224)的单独控制。 壳体(62)包括离合器(A)的输出部分,其通过轴承(58)可旋转地安装到包括离合器(A)的输入部分的摩擦盘(28)的轮毂部分(24) 。 在其他形式中,离合器(A')的输出部分为可旋转地安装在固定轴(24')上的轮毂(20')的形式,并且输入部分是轮(50')的形式, 可相对于毂(20')和轴(24')旋转。 此外,轮毂(20')可以通过将轮毂(20')可旋转地联接到轴(24')而被制动。 在一种形式中,摩擦环(252)包括与形成在壳体(62)中的齿轮齿(250)可滑动的齿轮齿(256)的周边齿轮齿(256),并且由纤维制动材料形成,以用作摩擦盘 (28)和壳体(62)以吸收扭转振动。
    • 23. 发明授权
    • Rotational control apparatus
    • 旋转控制装置
    • US5613586A
    • 1997-03-25
    • US201783
    • 1994-02-25
    • Hugh K. SchillingJohn B. DavisRobert C. Bredt
    • Hugh K. SchillingJohn B. DavisRobert C. Bredt
    • F01P7/08F16D25/0638F16D67/04H02K49/04F16D29/00F16D25/0635F16D27/01
    • H02K49/046F01P7/085F16D25/0638F16D67/04
    • Rotational control apparatus in the preferred forms of fan clutches (A) are shown including an eddy current drive (224). Specifically, the eddy current drive (224) includes a plurality of permanent magnets (226) mounted circumferentially spaced and with alternating polarity by a holder (228) to a radially extending surface (232) of a housing (62) rotatably mounted by a bearing (58) to the hub portion (24) of a friction disc (28). A magnetically conductive ring (242) is mounted on the opposite axial side of the friction disc (28) than the surface (34) engaged by a friction ring (86, 252) which is rotatably fixed but axially displaceable relative to the housing (62). In the embodiments shown, the friction ring (86, 252) is biased in a disengaged condition from the friction disc (28) by springs (138, 256) and is moved to an engaged condition by a fluid actuated piston (80). In one of the preferred forms, the friction ring (252) includes peripheral gear teeth (256) in slideable gearing relation with gear teeth (250) formed in the housing (62) and is formed of fiber brake material to act as a dampener between the friction disc (28) and the housing (62) to absorb torsional vibration. Thus, the housing (62) and the fan blades mounted thereto are driven with the friction disc (28) in its engaged condition and are driven at a rotational speed less than the speed of the friction disc (28) in its disengaged condition by the eddy current drive (224) and without separate controls for the eddy current drive (224).
    • 示出了优选形式的风扇离合器(A)的旋转控制装置,其包括涡流驱动器(224)。 具体地,涡流驱动器(224)包括多个永磁体(226),其通过保持器(228)周向间隔开并具有交替极性的多个永磁体(226)连接到由轴承(62)可旋转地安装的壳体(62)的径向延伸表面(232) (58)连接到摩擦盘(28)的轮毂部分(24)。 与摩擦环(86,252)接合的表面(34)相比,导电环(242)安装在摩擦盘(28)的相对的轴向侧上,该摩擦环(86,252)相对于壳体(62)可旋转地固定但可轴向移动 )。 在所示的实施例中,摩擦环(86,252)通过弹簧(138,256)从脱离状态被偏离摩擦盘(28),由流体驱动的活塞(80)移动到接合状态。 在优选形式之一中,摩擦环(252)包括与形成在壳体(62)中的齿轮齿(250)可滑动的齿轮齿(256)的周边齿轮齿(256),并且由纤维制动材料形成,以用作阻尼器 摩擦盘(28)和壳体(62)以吸收扭转振动。 因此,安装在其上的壳体(62)和风扇叶片被摩擦盘(28)驱动到其接合状态,并且在其脱离状态下以小于摩擦盘(28)的速度的转速被驱动 涡流驱动器(224),并且没有用于涡流驱动器(224)的单独控制。
    • 27. 发明授权
    • System for transmission overspeed and horsepower limit protection
    • 传输超速和马力限制保护系统
    • US5482148A
    • 1996-01-09
    • US296559
    • 1994-08-26
    • Martin R. DadelCharles F. Long
    • Martin R. DadelCharles F. Long
    • B60T10/02B60T1/087F16D55/00F16D55/36F16D57/02F16D57/04F16D67/04
    • F16D55/36F16D57/04F16D67/04F16D2055/0058
    • The present invention is directed to a retarder control system for protection against transmission overspeed. The system operates in conjunction with a rotatable input member and an output member that is rotatable relative to the input member. A torque transfer device is operatively connected between the relatively rotatable input and output members. Specifically, a piston assembly is operated by an input control chamber that selectively receives pressurized hydraulic fluid which effects translation of the piston assembly to actuate the torque transfer device and thereby effect a driving connection between the relatively rotatable input and output members. The present system is adapted to control a hydrodynamic retarder assembly having a work cavity to receive hydraulic fluid. The retarder input valve assembly is supported from one of the relatively rotatable members selectively to deliver pressurized hydraulic fluid from the input control chamber to the retarder cavity. In order to achieve overspeed protection the retarder input valve opens in response to a predetermined angular velocity of the relatively rotatable member on which the retarder input valve assembly is supported. In a variation of the retarder control system explained above, a dump valve assembly is provided which opens selectively to release pressurized hydraulic fluid from the work cavity of said retarder in response to the pressure of the hydraulic fluid within said retarder work cavity.
    • 本发明涉及一种用于防止传输超速的延迟器控制系统。 该系统与可旋转输入构件和可相对于输入构件旋转的输出构件一起操作。 扭矩传递装置可操作地连接在相对可旋转的输入和输出构件之间。 具体地,活塞组件由输入控制室操作,该输入控制室选择性地接收加压的液压流体,该压力液压流体实现活塞组件的平移以启动扭矩传递装置,从而实现相对可旋转的输入和输出构件之间的驱动连接。 本系统适于控制具有工作腔以接收液压流体的流体动力学延迟器组件。 缓速器输入阀组件从相对可旋转的构件之一选择性地被支撑,以将加压的液压流体从输入控制室输送到延迟器腔。 为了实现超速保护,减速器输入阀响应于在其上支撑减速器输入阀组件的相对可旋转的构件的预定角速度而打开。 在上述减速器控制系统的变型中,提供了一个排气阀组件,其选择性地打开以响应于所述减速器工作腔内的液压流体的压力而从所述减速器的工作腔释放加压的液压流体。
    • 29. 发明授权
    • Control and actuation system for hydraulically actuated clutch and brake
    • 用于液压驱动离合器和制动器的控制和致动系统
    • US5249655A
    • 1993-10-05
    • US937264
    • 1992-08-31
    • Dennis W. Person
    • Dennis W. Person
    • B60K23/02F16H61/02F16H61/06F16D67/04
    • F16H61/0276B60K23/02F16H61/0206F16H61/065F16H2061/026F16H61/067
    • Two solenoid-actuated shuttle valves selectively direct hydraulic fluid from a line pressure source to a clutch and brake servo or direct fluid from the clutch and servo to a low pressure drain, in accordance with the combined states of the solenoids. The system includes several orifices, which in combination control the rate of flow between the pressure source and the friction elements. The orifices control also the flow rate in the system between the friction elements and drain ports. Accumulators are located in the system between the shuttle valves and the friction elements. An arrangement of check valves and orifices located between the shuttle valves and the accumulators establish the rate of flow between each of the accumulators and the associated friction element.
    • 根据螺线管的组合状态,两个电磁致动梭阀选择性地将液压流体从管路压力源引导到离合器,并将制动器伺服或直接流体从离合器和伺服转换到低压排放管。 该系统包括几个孔,其组合地控制压力源和摩擦元件之间的流速。 孔也控制系统中摩擦元件和排出口之间的流量。 蓄能器位于梭阀和摩擦元件之间的系统中。 位于梭阀和蓄能器之间的止回阀和孔口的布置确定了每个蓄能器和相关联的摩擦元件之间的流量。
    • 30. 发明授权
    • Clutch and brake apparatus operable by a compressible fluid,
particularly pneumatically
    • 离合器和制动装置可由可压缩流体操作,特别是气动的
    • US4967885A
    • 1990-11-06
    • US411881
    • 1989-09-25
    • Niels ArbjergJesper Kirkegaard
    • Niels ArbjergJesper Kirkegaard
    • F16D67/04
    • F16D67/04
    • Clutch and brake apparatus that is operable by a compressible fluid, particularly pneumatically, includes input and output shafts mounted in a common housing that has a clutch chamber. A clutch plate and a clutch flange are mounted in the clutch chamber with the flange being fixed to the input shaft and the clutch plate dividing the clutch chamber into two operating chambers that are adapted to be at different fluid pressures. A friction lining is fixed to at least one of the clutch plate and clutch flange for engaging the other. A clutch plate is mounted to be axially displacable relative to the output shaft in every load condition while at least one torque plate is fixed to rotate with the output shaft and a peripheral portion of the clutch plate. The torque plate is subjected to the same fluid pressure on both sides. The apparatus is able to operated with a large pressure differences across the clutch plate without danger of damaging the clutch plate.
    • 可由可压缩流体(特别是气动的)操作的离合器和制动装置包括安装在具有离合器室的公共壳体中的输入和输出轴。 离合器板和离合器凸缘安装在离合器室中,其中凸缘固定到输入轴,并且离合器板将离合器室分成适合于处于不同流体压力的两个操作室。 摩擦衬片被固定到离合器板和离合器凸缘中的至少一个上以接合另一个。 在每个负载条件下,离合器片安装成相对于输出轴可轴向移动,同时固定至少一个扭矩板以与输出轴和离合器板的周边部分一起旋转。 扭矩板在两侧经受相同的流体压力。 该装置能够跨越离合器片的较大的压力差运行,而不会损坏离合器片。