Electromagnetic clutch and rotation transmission device
    41.
    发明授权
    Electromagnetic clutch and rotation transmission device 有权
    电磁离合器和旋转传动装置

    公开(公告)号:US07017723B2

    公开(公告)日:2006-03-28

    申请号:US10872381

    申请日:2004-06-22

    IPC分类号: B60K23/08

    摘要: The magnetic attraction force of an electromagnetic coil in an electromagnetic clutch is increased in a limited installation space, thereby improving reliability of operation. The dimensions of a field core housing the electromagnetic coil and a rotor are optimized to increase the magnetic attraction force. The thicknesses of cylindrical portions on the inner-diameter side of the field core and the rotor have larger thicknesses than those of cylindrical portions on its outer-diameter side so that the sectional areas of both cylindrical portions will be equal to each other. Also, a rotation transmission device provided with an electromagnetic clutch is proposed which can avoid deterioration of its sealing property and damage to its bearing and avoid cost increase.

    摘要翻译: 电磁离合器中的电磁线圈的磁吸引力在有限的安装空间中增加,从而提高了操作的可靠性。 容纳电磁线圈和转子的磁芯的尺寸被优化以增加磁吸引力。 场磁芯和转子的内径侧的圆筒部的厚度比其外径侧的圆筒部的厚度大,所以两个圆筒部的截面积相等。 此外,提出了一种具有电磁离合器的旋转传动装置,其可以避免其密封性能的劣化并损害其轴承,并且避免成本增加。

    Sealing apparatus and a rolling bearing and a clutch apparatus provided therewith
    42.
    发明授权
    Sealing apparatus and a rolling bearing and a clutch apparatus provided therewith 失效
    密封装置和滚动轴承以及与其配合的离合器装置

    公开(公告)号:US06921083B2

    公开(公告)日:2005-07-26

    申请号:US10262495

    申请日:2002-10-01

    摘要: A sealing apparatus (20) has a slinger (22) with a substantially L-shaped cross-section including a cylindrical portion (22a) to be fitted on a member of rotational side and an upstanding portion (22b) radially extending from one end of the cylindrical portion (22a). The apparatus also has a core member (23a) of a substantially L-shaped cross-section including a cylindrical portion (23aa) to be fitted in a member of stationary side and an upstanding portion (23ab) radially extending from one end of the cylindrical portion. Further included is a sealing element (23b) including one ore more side lips (23ba) and (23ba) adapted to be slidably contacted with the upstanding portion (22b) of the slinger (22) and one or more radial lips (23bb) adapted to be slidably contacted with the cylindrical portion (22a) of the slinger (22). An interference of a portion of the cylindrical portion (23aa) and/or (22a) of the core member (23a) and/or the slinger (22) near the upstanding portion (23ab) and/or (22b) is formed smaller than that of the other portion of the cylindrical portion (23aa) and/or (22a) of the core member (23a) and/or the slinger (22).

    摘要翻译: 一种密封装置(20)具有一个具有大致L形横截面的抛油环(22),包括一个圆筒形部分(22b)和一个从一个径向延伸的直立部分(22b) 圆柱形部分(22a)的端部。 该装置还具有基本为L形横截面的芯构件(23a),该芯构件包括将嵌入固定侧构件的圆柱形部分(23a)和从一端径向延伸的直立部分(23b) 的圆柱形部分。 还包括密封元件(23b),其包括适于与抛油环(22)的直立部分(22b)可滑动接触的一个或多个侧唇(23ba)和(23ba)的一个或多个径向唇 (23bb),其适于与所述抛油环(22)的圆柱形部分(22b)可滑动地接触。 靠近直立部分(23 ab)和/或(22b)的芯部件(23a)和/或抛油环(22)的圆柱形部分(23a)和/或(22a)的一部分和/或(22a) )形成为小于芯构件(23a)和/或抛油环(22)的圆柱形部分(23aa)和/或(22a)的另一部分的尺寸。

    Four-wheel drive system
    43.
    发明授权
    Four-wheel drive system 有权
    四轮驱动系统

    公开(公告)号:US6132332A

    公开(公告)日:2000-10-17

    申请号:US317206

    申请日:1999-05-24

    申请人: Makoto Yasui

    发明人: Makoto Yasui

    摘要: A four-wheel drive system according to the invention can shorten a delay in response of an electromagnetic clutch and permits shockless transition to 4WD. In a rotation transmission device having a two-way clutch including rollers mounted between an inner member and an outer ring for selective transmission and non-transmission of rotation between the inner member and the outer ring, an electromagnetic clutch for controlling the locking and freeing of the two-way clutch, and a current control mechanism for controlling the locking and freeing of the two-way clutch, a current supplied to the current control mechanism is controlled based on an input signal from a sensor for detecting the load on the engine to shorten a delay in response until the two-way clutch locks after the supply of a current to the electromagnetic coil has begun and to prevent shocks during transition to 4WD.

    摘要翻译: 根据本发明的四轮驱动系统可以缩短电磁离合器响应的延迟,并允许无震动转换到4WD。 在具有双向离合器的旋转传动装置中,所述双向离合器包括安装在内部构件和外部环之间的辊,用于选择性地传动和内部构件和外部环之间的不传动,用于控制锁定和释放的电磁离合器 双向离合器和用于控制双向离合器的锁定和释放的电流控制机构,基于来自用于检测发动机上的负载的传感器的输入信号来控制供应到电流控制机构的电流 在向电磁线圈提供电流开始之后,缩短到双向离合器锁定之前的响应延迟,并防止在过渡到4WD期间的冲击。

    Rotation transmission device
    44.
    发明授权
    Rotation transmission device 失效
    旋转传动装置

    公开(公告)号:US6041879A

    公开(公告)日:2000-03-28

    申请号:US27192

    申请日:1998-02-20

    摘要: A rotation transmission device is mounted in a drive train of a four-wheel drive vehicle to selectively distribute driving force to selected vehicle wheels according to the travel condition of the vehicle. This device includes an outer ring and an input shaft. A cylindrical face is formed on one of the opposed surfaces of the outer ring and the input shaft, while cam faces are formed on the other opposed surface to define a wedge-shaped space between the cylindrical face and each cam face. Rollers are mounted in pockets formed in a retainer mounted between the input shaft and the outer ring. An electromagnetic clutch is coupled to the retainer. A switch spring is mounted between the retainer and the input shaft. A two-way clutch is provided between the outer ring and the input shaft. A control unit controls the two-way clutch by adjusting the amount of current fed through a coil of the electromagnetic clutch according to the travel condition of the vehicle, thus selectively distributing driving force to selected vehicle wheels. A method of controlling the rotation transmission device is also proposed. Also, another transmission device is proposed which is mounted in the transfer of a vehicle.

    摘要翻译: 旋转传递装置安装在四轮驱动车辆的传动系中,以根据车辆的行驶状态选择性地将驱动力分配给选定的车轮。 该装置包括外圈和输入轴。 在外圈和输入轴的相对表面中的一个上形成有圆筒面,同时凸轮面形成在另一相对表面上,以在圆柱面和每个凸轮面之间形成楔形空间。 辊子安装在形成在安装在输入轴和外圈之间的保持器中的凹穴中。 电磁离合器联接到保持器。 开关弹簧安装在保持器和输入轴之间。 在外圈和输入轴之间设有双向离合器。 控制单元通过根据车辆的行驶状态调节通过电磁离合器的线圈供给的电流量来控制双向离合器,由此选择性地将驱动力分配给选择的车轮。 还提出了一种控制旋转传动装置的方法。 此外,提出了安装在车辆传送中的另一传动装置。

    Rotation transmission device
    45.
    发明授权
    Rotation transmission device 失效
    旋转传动装置

    公开(公告)号:US5429218A

    公开(公告)日:1995-07-04

    申请号:US255937

    申请日:1994-06-07

    摘要: A mechanical device to be mounted on a four-wheel drive vehicle capable of transmitting driving force to the rear wheels while the vehicle is being accelerated and cutting off the transmission of driving force to the rear wheels while being braked. This device has an inner member to be coupled in series with a differential or a limited slip differential device, and an outer ring. On the opposite surfaces of the inner member and the outer ring are formed a cylindrical surface and a plurality of cam surfaces, between which are defined wedge-shaped spaces. A retainer is provided between the inner member and the outer ring. It is formed with pockets to receive rollers as engaging elements. A turning effort imparting device is coupled to the retainer through a one-way clutch. A torsion coil spring for producing turning effort is mounted between the retainer and the inner member. When the one-way clutch is switched on or off, the direction of turning effort applied to the retainer changes, so that the direction in which the rotation of the retainer delays with respect to the inner member is reversed. The rollers are thus kept in one of the two opposite engageable positions when the inner member is rotating in either direction.

    摘要翻译: 一种安装在四轮驱动车辆上的机械装置,其能够在车辆加速时向后轮传递驱动力,并在制动时切断向后轮的驱动力传递。 该装置具有与差速器或限滑差速装置和外圈串联的内部构件。 在内部构件和外部环的相对表面上形成有圆柱形表面和多个凸轮表面,它们之间形成有楔形空间。 在内部构件和外部环之间设置有保持器。 它形成有口袋以接收辊作为接合元件。 转向力赋予装置通过单向离合器联接到保持器。 用于产生转向力的扭转螺旋弹簧安装在保持器和内部构件之间。 当单向离合器打开或关闭时,施加到保持器的转向力的方向改变,使得保持器相对于内部构件延迟的旋转方向相反。 因此,当内部构件沿任一方向旋转时,辊保持在两个相对的可接合位置之一中。