专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4108569A Lubricated mechanical seals for pumps 失效
标题翻译：泵的润滑机械密封
公开(公告)号：US4108569A
公开(公告)日：1978-08-22
申请号：US690081
申请日：1976-05-26
申请人： Michael Leslie Ryall , James Rennie Robertson
发明人： Michael Leslie Ryall , James Rennie Robertson
IPC分类号： F04D29/12 , F16J15/40 , F16J15/16 , F16J15/54
CPC分类号： F04D29/128 , F04D29/126 , F16J15/40
摘要： In a rotodynamic pump intended for operation at high pressures e.g. 2000 p.s.i. and for pumping contaminated fluids e.g. corrosive water, high pressure sealing assemblies are provided at the through-openings in the pump casing for the pump shaft. Each assembly includes a pair of axially spaced mechanical seals, and each seal comprises a rotor portion fixed to the pump shaft and a stator portion axially movable into sealing engagement with the rotor portion, the stators being located intermediate the rotor portions. A busing is located between the seals and includes conduits supplying oil at a pressure above pump pressure to the innermost seal whence the oil is reduced in pressure and passed to the outermost seal, so that oil is delivered to the facing ends of the stators. The oil serves for lubrication of the sealing interfaces and for the prevention of egress of contaminated material through said innermost seal.
摘要翻译：在用于在高压下操作的旋转动力泵中。 2000 p.s.i. 并用于泵送受污染的流体。腐蚀性水，高压密封组件设置在用于泵轴的泵壳中的通孔处。每个组件包括一对轴向隔开的机械密封件，并且每个密封件包括固定到泵轴的转子部分和可轴向移动成与转子部分密封接合的定子部分，定子位于转子部分的中间。泄压位于密封件之间，并且包括将压力高于泵压力的油供给到最内部密封件的管道，其中油被压力降低并传递到最外面的密封件，使得油被输送到定子的相对端。该油用于润滑密封界面并防止被污染物质通过所述最内部密封件排出。

2. 发明授权

US5755554A Multistage pumps and compressors 失效
标题翻译：多级泵和压缩机
公开(公告)号：US5755554A
公开(公告)日：1998-05-26
申请号：US769453
申请日：1996-12-18
申请人： Michael Leslie Ryall
发明人： Michael Leslie Ryall
IPC分类号： F04D3/00 , F04D19/02 , F04D29/54 , F04D31/00 , F04D29/44
CPC分类号： F04D31/00 , F04D19/028 , F04D29/544 , F04D29/548 , F04D3/00
摘要： A multistage pump or compressor includes a series of axial flow stages. Each stage comprises an impeller for imparting whirl to the pumped fluid in one direction and a stator including vanes for imparting whirl to the pumped fluid in the opposite direction. The stator vanes define flow passages configured such that the fluid flows through the passages at substantially constant absolute velocity. The average ratio of stage axial length to impeller diameter for each axial flow stage is less than 0.4.
摘要翻译：多级泵或压缩机包括一系列轴流级。每个阶段包括用于在一个方向上向抽吸流体施加旋转的叶轮和包括叶片的定子，所述叶片用于沿相反方向向泵送的流体施加涡流。定子叶片限定流动通道，其构造成使得流体以基本上恒定的绝对速度流过通道。每个轴流阶段的平台轴向长度与叶轮直径的平均比值小于0.4。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式