Bi-state hydraulic mount with annular decoupler

    公开(公告)号:US06547226B2

    公开(公告)日:2003-04-15

    申请号:US09777205

    申请日:2001-02-05

    IPC分类号: F16M900

    CPC分类号: F16F13/262 F16F13/106

    摘要: A hydraulic mount useful for automotive vehicle powertrain applications includes an elastomeric body, a base, a flexible diaphragm and a partition assembled to provide a pumping chamber and a reservoir. An actuator is mounted for moving a closure member between positions to allow flow of fluid between the pumping chamber and the reservoir and to restrict flow of fluid between the pumping chamber and the reservoir. The partition comprises an orifice plate assembly including a valve housing and an annular recess formed in one of two orifice plates for receiving a decoupler. The orifice plates include openings therein for communicating fluid between the decoupler and the pumping chamber and between the decoupler and the reservoir, respectively.

    Multi-tube shock absorber
    3.
    发明授权
    Multi-tube shock absorber 失效
    多管减震器

    公开(公告)号:US5070970A

    公开(公告)日:1991-12-10

    申请号:US542379

    申请日:1990-06-22

    IPC分类号: F16F9/18 F16F9/348

    CPC分类号: F16F9/185 F16F9/3482

    摘要: A hydraulic damper for a suspension system comprises a fluid-filled inner cylinder mounting a reciprocating piston and piston rod. The piston divides the interior of the inner cylinder into upper and lower chambers. A reservoir tube surrounds the inner cylinder and forms a reservoir in the interior volume between the reservoir tube and the inner cylinder. A base valve assembly permits the return of fluid into the lower chamber from the reservoir. A pair of concentric tubes are mounted between the inner cylinder and the reservoir tube and provide a one-way laminar flow path for fluid exiting the upper chamber of the inner cylinder and entering the reservoir. The length and the spacing of the concentric tubes can be varied to provide a preselected damping force.

    摘要翻译: 用于悬架系统的液压阻尼器包括安装往复活塞和活塞杆的流体填充内筒。 活塞将内筒的内部分成上下腔。 储存器管围绕内筒并在储存器管和内筒之间的内部容积中形成储存器。 基阀组件允许流体从储存器返回下室。 一对同心管安装在内筒和储存管之间,并提供用于流出内筒的上腔并进入储存器的流体的单向层流路径。 同心管的长度和间距可以改变以提供预选的阻尼力。

    Shrouding for engine mounted cooling fan
    5.
    发明授权
    Shrouding for engine mounted cooling fan 失效
    发动机安装冷却风扇罩

    公开(公告)号:US4213426A

    公开(公告)日:1980-07-22

    申请号:US959432

    申请日:1978-11-09

    IPC分类号: F01P5/06 F01P7/10 F04D29/40

    CPC分类号: F01P5/06

    摘要: Engine cooling fan shrouding comprising a flexible shroud mounted on a stationary component within the engine compartment and a rotating shroud carried by the blade tips of an engine mounted cooling fan. With this arrangement, there is small clearance between the rotating shroud and the flexible shroud so that most of the air drawn in by the fan is through the radiator core for effective cooling of liquids circulated therein. The flexible shroud deflects without damage on engine vibration causing the rotating shroud to contact the flexible shroud.

    摘要翻译: 发动机冷却风扇罩包括安装在发动机舱内的固定部件上的柔性罩,以及由发动机安装的冷却风扇的叶片末端承载的旋转罩。 通过这种布置,旋转护罩和柔性护罩之间存在小的间隙,使得由风扇吸入的大部分空气通过散热器芯,以有效地冷却其中循环的液体。 柔性护罩不会损坏发动机振动,导致旋转罩与柔性护罩接触。

    Fan shroud arrangement
    6.
    发明授权
    Fan shroud arrangement 失效
    风扇护罩布置

    公开(公告)号:US4181172A

    公开(公告)日:1980-01-01

    申请号:US812130

    申请日:1977-07-01

    IPC分类号: B60K11/04 F01P5/02 F28F13/06

    CPC分类号: F01P5/02 B60K11/04

    摘要: The mechanism shown and described herein is a cooling fan and associated dual shroud arrangement including (1) a rotating shroud comprised of a ring secured to the outer tips of the fan blades and a bell-mouthed inlet formed on the leading edge of the ring, and (2) a stationary shroud secured at one end or edge thereof to the radiator and terminating at the outer end thereof in an annular edge in front or upstream of the bell-mouthed inlet. A predetermined clearance is defined between the stationary shroud and the bell-mouthed inlet, effective to provide a smooth recirculating airflow around the rotating shroud and back into the main airflow stream, thereby substantially eliminating tip-vortex characteristics and resultant tip-clearance noise, and without unsteady flow interactions that cause rotational noise. In one alternate embodiment, the radiator is used in lieu of the stationary shroud for cooperation with the bell-mouthed inlet.

    摘要翻译: 这里示出和描述的机构是冷却风扇和相关联的双重护罩布置,包括(1)旋转护罩,其包括固定到风扇叶片的外部尖端的环和形成在环的前缘上的钟形入口, 和(2)在其一端或边缘处固定到散热器并在其外端处终止于钟形口入口前方或上游的环形边缘的固定护罩。 在固定护罩和喇叭口入口之间限定了预定的间隙,有效地在旋转护罩周围提供平滑的再循环气流并返回到主气流,从而基本上消除了尖端 - 涡流特性和产生的顶端间隙噪声,以及 没有导致旋转噪声的不稳定的流动相互作用。 在一个替代实施例中,散热器用于代替固定护罩,用于与钟罩入口配合。

    Commutator having segments with a varied dimension
    10.
    发明授权
    Commutator having segments with a varied dimension 失效
    换向器具有不同尺寸的线段

    公开(公告)号:US4433263A

    公开(公告)日:1984-02-21

    申请号:US391127

    申请日:1982-06-23

    IPC分类号: H01R39/06 H02K13/10 H02K13/04

    CPC分类号: H01R39/06 H02K13/10

    摘要: A commutator has a plurality of spaced, electrically conducting segments, each of which has a physical dimension determining the relative time duration of brush contact with said segment during commutator rotation with audible brush noise being generated between the brush and said consecutive segments, the noise including a fundamental frequency component at a frequency related to the frequency at which the consecutive segments pass the brush. The physical dimension of the consecutive segments varies from each segment to the next according to a predetermined pattern effective to vary the relative time of brush contact from each segment to the next during rotation and thus reduce the amplitude of the fundamental frequency components to make the brush noise less tonal in character and thus less annoying.

    摘要翻译: 换向器具有多个间隔的导电段,每个具有确定在换向器旋转期间刷子与所述段接触的相对持续时间的物理尺寸,其中在电刷和所述连续段之间产生可听见的电刷噪声,噪声包括 在与连续片段通过刷子的频率相关的频率处的基本频率分量。 连续片段的物理尺寸根据预定图案从每个片段到下一个部分变化,以有效地改变在旋转期间每个片段到下一个片段的刷接触的相对时间,从而减小基本频率分量的幅度,以使刷 噪音较少,色调不那么恼人。