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公开(公告)号：US4074796A
公开(公告)日：1978-02-21
申请号：US654484
申请日：1976-02-02
CPC分类号： B66D1/24 , B66D1/44 , Y10T137/7925
摘要： A towing winch system with fluid pressure actuated power input and winch input clutches disposed serially between the power take-off and cable drum. A controlled but variable reduced fluid pressure from a source is applied to the winch input clutches and full fluid pressure is applied to the power input clutch through a valve which opens in response to and when the pressure applied to the winch input clutches exceeds a manually selectable low or high value for inching or non-inching operation, respectively.
摘要翻译： 具有流体压力致动功率输入的牵引绞车系统和串联地连接在动力输出和电缆鼓之间的绞车输入离合器。 来自源的控制但可变的减少的流体压力被施加到绞盘输入离合器，并且通过响应于当施加到绞盘输入离合器的压力超过手动可选择的开启的阀将全流体压力施加到动力输入离合器 分别为微动或非微动作用的低或高值。
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公开(公告)号：US4243535A
公开(公告)日：1981-01-06
申请号：US754811
申请日：1976-12-27
CPC分类号： B01D25/24 , B01D29/114 , B01D2201/02
摘要： A filter assembly comprises a plurality of filter elements telescopically mounted relative to each other and in a housing defining an inlet and an outlet thereon. Each filter element comprises a tubular screen having a plurality of longitudinally extending ribs secured in circumferentially spaced relationship therearound. First and second filter elements of each radially adjacent pair of filter elements have the ribs thereof aligned in abutting relationship to space the screens of the filter elements radially from each other to define a flow passage therebetween. The screen of the outermost filter element is cylindrical, the screen of the next radially adjacent filter element is frustoconically shaped and et sequence to closely compact the filter elements together. An end cap is secured on one end of the filter assembly to retain it in place in the housing.
摘要翻译： 过滤器组件包括多个过滤元件，所述多个过滤元件相对于彼此可伸缩地安装，并且在限定入口和出口的壳体中。 每个过滤元件包括管状筛，其具有围绕其周向隔开的关系固定的多个纵向延伸肋。 每个径向相邻的一对过滤器元件的第一和第二过滤器元件具有以邻接关系对准的肋，以使过滤元件的筛网彼此径向间隔开以限定其间的流动通道。 最外面的过滤元件的筛网是圆柱形的，下一个径向相邻的过滤器元件的筛网是截头圆锥形的和顺序的，以将过滤元件紧密地压实在一起。 端盖固定在过滤器组件的一端上以将其保持在壳体中的适当位置。
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公开(公告)号：US4195480A
公开(公告)日：1980-04-01
申请号：US4793
申请日：1978-12-26
CPC分类号： F04C11/001 , F04C11/00 , F04C2230/70 , F04C2240/70 , Y10S60/916
摘要： An improved hydraulic pump structure for hydraulic systems which require a plurality of rotary pumps has a pump casing assembly (20) consisting of a plurality of pump casing elements (23-29) which are fastened together in abutting relationship to define a first pump cavity (54) and a second pump cavity (55a) with aligned drive shaft holes (56-61) and a drive shaft (62-63) which is journalled in the holes (56-61) and carries a rotary pump member (76-77 or 80-81) in each cavity (54 and 55a). The casing elements (23-29) are manifolded to provide a first fluid inlet passage (82), a first fluid delivery passage (84) which terminates in a port in a fluid delivery end plate (29), a second fluid inlet passage (86) which has an entrance opening (H6) in the fluid delivery end plate (29), and a second fluid outlet passage (87) which terminates in a port in the fluid delivery end plate (29). There may be two subassemblies (21 and 22) with two pumps in each, secured together in face abutting relationship with an axially interengaged driving connection (62a-63a) between drive shaft segments (62 and 63) in the two subassemblies (21 and 22) and with fluid delivery passages (83 and 84) extending from one assembly through the other.
摘要翻译： 用于需要多个旋转泵的液压系统的改进的液压泵结构具有由多个泵壳体元件（23-29）组成的泵壳体组件（20），所述泵壳体元件以邻接关系紧固在一起以限定第一泵腔 54）和具有对准的驱动轴孔（56-61）和驱动轴（62-63）的第二泵腔（55a），其被轴颈安装在孔（56-61）中并且承载旋转泵构件（76-77） 或80-81）在每个空腔（54和55a）中。 壳体元件（23-29）被歧管以提供第一流体入口通道（82），终止于流体输送端板（29）中的端口中的第一流体输送通道（84），第二流体入口通道 86），其在流体输送端板（29）中具有入口（H6），以及终止在流体输送端板（29）中的端口中的第二流体出口通道（87）。 可以存在两个子组件（21和22），每个组件中的两个泵固定在一起，与两个子组件（21和22）中的驱动轴段（62和63）之间的轴向相互接合的驱动连接（62a-63a） ）和从一个组件延伸穿过另一组件的流体输送通道（83和84）。
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公开(公告)号：US4076219A
公开(公告)日：1978-02-28
申请号：US722991
申请日：1976-09-13
摘要： A winch drum carrying a cable is supported by drive mechanism which includes a normally disengaged drive input clutch that is engageable in response to pressurized fluid to reel in cable. A normally engaged disconnect clutch disengages in response to fluid pressure to free the drum for rotation independently of the drive mechanism. A normally engaged brake immobilizes the drive mechanism except when released by fluid pressure. A control valve provides for directing pressurized fluid to appropriate ones or combinations of the clutches and brake as necessary to establish any of four operational conditions including Reel-In, Brake-On, Brake-Off and Disconnect modes of operation. A check valve between the flow lines that connect the control valve to the input clutch and to the brake assures that there is no momentary overlapping of engagements of both the input clutch and the brake when the Reel-In mode of operation is initiated or terminated.
摘要翻译： 承载电缆的绞盘鼓由驱动机构支撑，该驱动机构包括能够响应加压流体到卷绕在电缆中的可接合的通常分离的驱动输入离合器。 正常接合的断开离合器响应于流体压力而脱离，以使滚筒释放以独立于驱动机构旋转。 通常接合的制动器除了通过流体压力释放之外固定驱动机构。 控制阀提供用于将加压流体引导到适当的或离合器和制动器的组合，以便建立四种操作条件中的任何一种，包括卷入，制动，制动和断开操作模式。 在将控制阀连接到输入离合器和制动器的流动管线之间的止回阀确保当起动或终止卷入操作模式时，输入离合器和制动器的啮合都不会瞬间重叠。
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