-
公开(公告)号：US4371086A
公开(公告)日：1983-02-01
申请号：US163635
申请日：1980-06-27
CPC分类号： E02F9/121 , B66C23/84 , F16C33/76 , F16C19/30 , F16C2300/14
摘要： In an excavating machine having a lower frame, an upper frame and means for rotatably supporting the upper frame on the lower frame, an assembly for improving the load conditions of the upper frame supporting structure comprising an annular seal mounted on one of the upper and lower frames and disposed in wiping, sealing engagement with the other of the upper and lower frames, forming a sealed chamber between the upper and lower frames, and air is supplied under pressure to the chamber to provide an upwardly directed force on the upper frame alleviating the load imposed on the upper frame supporting structure.
摘要翻译： 在具有下框架的挖掘机中，上框架和用于将下框架上的上框架可旋转地支撑的装置，用于改善上框架支撑结构的负载状态的组件包括安装在上框架和下框架之一上的环形密封件 框架并且布置成擦拭，与上框架和下框架中的另一个密封接合，在上框架和下框架之间形成密封室，并且空气在压力下被供应到室，以在上框架上提供向上的力，从而减轻 施加在上框架支撑结构上的载荷。
-
公开(公告)号：US4720210A
公开(公告)日：1988-01-19
申请号：US13531
申请日：1987-02-11
CPC分类号： F04D35/00 , E04H4/0006
摘要： Apparatus for generating waves in a swimming pool comprises a reservoir, independent of and separate from the pool, the reservoir containing a volume of water to be supplied to one or more inlets communicating into the lower regions of the swimming pool, and one or more flow paths through which the water from the reservoir is fed to the or each inlet, the or each flow path including a flow control valve therein and a volume of air downstream of the associated control valve for entrainment with the water flowing to the swimming pool such that, on entry of the water into the swimming pool, a wave having a turbulent, air-containing wake is formed.
摘要翻译： 用于在游泳池中产生波浪的装置包括独立于池并且与游泳池分开的储存器，储存器包含一定量的水以被供应到与游泳池的下部区域连通的一个或多个入口，以及一个或多个流 来自储存器的水通过其进入到或每个入口的路径，每个流动路径包括流量控制阀和相关联的控制阀下游的空气体积，用于夹带水流入游泳池，使得 在水进入游泳池时，形成具有湍流，含空气的尾流的波。
-
搜索结果
2 条记录 (耗时 0.011 秒)
