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公开(公告)号：US06663448B1
公开(公告)日：2003-12-16
申请号：US09043511
申请日：1998-03-23
IPC分类号： B63H11103
CPC分类号： B63H11/08 , B63H2011/008 , B63H2011/081 , B63H2011/085
摘要： A water jet propulsion unit including an intake section, a pump section having a pair of counter-rotating impellers mounted side by side on parallel driving shafts in separate cylindrical passages through the pump section and a mixing discharge section ending in a discharge nozzle. The mixing/discharge section is adapted to converge the flows of water discharge from the impellers to neutralise non-axial flow components from one impeller by non-axial flow components from the other impeller to maximise axial flow out of the mixing/discharge section. The unit may be operated as a high mass/low pressure unit or low mass/high pressure unit.
摘要翻译： 一种喷水推进装置，包括进气部分，具有一对反向旋转叶轮的泵部分，该叶轮并排安装在通过泵部分分开的圆柱形通道中的平行驱动轴上，以及在排出喷嘴中终止的混合排放部分。 混合/排放部分适于使来自叶轮的排水流汇合，以通过来自另一个叶轮的非轴向流动分量中和来自一个叶轮的非轴向流动分量，以使从混合/排出部分出来的轴向流动最大化。 该单元可以作为高质量/低压单元或低质量/高压单元来操作。
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公开(公告)号：US06422904B1
公开(公告)日：2002-07-23
申请号：US09622048
申请日：2000-10-16
IPC分类号： B63H1100
CPC分类号： B63H11/08 , B63H11/103 , B63H2011/085
摘要： A water jet propulsion unit for water borne craft including two contra rotating impellers, located in an upstream pump housing and a downstream pump housing respectively, and mounted on coaxial shafts. A pressure control priming device in the form of a spring loaded collapsible skirt is located between the impellers. The pressure in the downstream pump housing can be maintained at atmospheric pressure by the controlled admission of air through air inlets.
摘要翻译： 一种用于水运工具的喷水推进装置，包括分别位于上游泵壳体和下游泵壳体中并安装在同轴轴上的两个反转叶轮。 弹簧加载的可折叠裙部形式的压力控制起动装置位于叶轮之间。 下游泵壳体的压力可以通过空气进入空气的受控进入而保持在大气压力。
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公开(公告)号：US06193569B1
公开(公告)日：2001-02-27
申请号：US09147769
申请日：1999-03-04
IPC分类号： B63H1100
摘要： A water jet propulsion unit suitable for use in outboard or stern-drive configuration in motor boats. The unit has an intake section, a pump section and a drive section within which is incorporated a pressure control device and nozzle. In the pump section there are two counter-rotating impellers on concentric counter-rotating shafts. The impellers are mounted upstream of the drive section. The drive section contains a drive transmission carrier to which is attached the pressure control device both being located in the vortex created in the water flow, downstream of the two impellers. The pressure control device allows the propulsion unit to operate in a low pressure high mass mode while maintaining pump priming. The impellers can be removed without disassembly of the drive transmission carrier.
摘要翻译： 适用于汽艇外侧或船尾驱动结构的喷水推进装置。 该单元具有进气部分，泵部分和驱动部分，其内装有压力控制装置和喷嘴。 在泵部分，在同心的反向旋转轴上有两个反向旋转的叶轮。 叶轮安装在驱动部分的上游。 驱动部分包括驱动传动载体，其上连接有压力控制装置，两者位于在两个叶轮下游的水流中产生的涡流中。 压力控制装置允许推进装置在维持泵起动的同时以低压高质量模式运行。 可以在不拆卸驱动传动载体的情况下拆卸叶轮。
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4.发明授权公开(公告)号：US08961248B2
公开(公告)日：2015-02-24
申请号：US13819343
申请日：2011-08-31
申请人： Barry John Davies
发明人： Barry John Davies
IPC分类号： B63H11/107 , B63H11/11 , B63H11/117
CPC分类号： B63H11/107 , B63H11/102 , B63H11/11 , B63H11/117 , B63H2011/085
摘要： A high mass/low pressure liquid propulsion device which includes:—two counter-rotating impellers mounted inside a housing;—an inlet which in use allows inflow of liquid into the housing on a first side of said impellers; an outlet which in use allows outflow of liquid from the housing on a second side of said impellers opposite to said first side;—means for driving said impellers;—wherein the improvement comprises the provision of means for reversing the drive to said impellers, such that the direction of flow of liquid through the device is reversed and liquid enters the device through said outlet, passes through said impellers, and leaves the device through said inlet.
摘要翻译： 一种高质量/低压液体推进装置，包括： - 安装在壳体内的两个反向旋转的叶轮; - 使用中的入口允许液体进入所述叶轮的第一侧上的壳体; 使用的出口允许在与所述第一侧相对的所述叶轮的第二侧上从所述壳体流出液体; - 用于驱动所述叶轮的装置; - 其中，所述改进包括提供用于将驱动器反向到所述叶轮的装置， 液体通过装置的流动方向相反，液体通过所述出口进入装置，通过所述叶轮，并使装置离开所述入口。
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5.发明申请公开(公告)号：US20130157530A1
公开(公告)日：2013-06-20
申请号：US13819343
申请日：2011-08-31
申请人： Barry John Davies
发明人： Barry John Davies
IPC分类号： B63H11/107
CPC分类号： B63H11/107 , B63H11/102 , B63H11/11 , B63H11/117 , B63H2011/085
摘要： A high mass/low pressure liquid propulsion device which includes: —two counter-rotating impellers mounted inside a housing; —an inlet which in use allows inflow of liquid into the housing on a first side of said impellers; an outlet which in use allows outflow of liquid from the housing on a second side of said impellers opposite to said first side; —means for driving said impellers; —wherein the improvement comprises the provision of means for reversing the drive to said impellers, such that the direction of flow of liquid through the device is reversed and liquid enters the device through said outlet, passes through said impellers, and leaves the device through said inlet.
摘要翻译： 一种高质量/低压液体推进装置，包括： - 安装在壳体内的两个反向旋转叶轮; - 使用的入口允许在所述叶轮的第一侧上将液体流入所述壳体; 在使用中的出口允许在与所述第一侧相对的所述叶轮的第二侧上从壳体流出液体; - 驾驶叶轮的方法; 其改进之处在于提供了用于将驱动器反转到所述叶轮的装置，使得液体通过装置的流动方向相反，并且液体通过所述出口进入装置，通过所述叶轮，并使装置离开所述叶轮 进口。
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公开(公告)号：US07824237B2
公开(公告)日：2010-11-02
申请号：US12243175
申请日：2008-10-01
IPC分类号： B63H11/00
CPC分类号： B63H11/10 , B63H11/08 , B63H2011/081 , F04D1/06 , F04D3/00 , F04D29/181
摘要： A water propulsion unit having an intake housing, a pump housing and an outlet with two spaced apart counter rotating impellers being located in the pump housing. The impeller blades on one impeller have an opposite pitch to the blades of the second impeller. The impellers are configured so that one of the impellers will impart less energy to the water as it passes the blades of the impeller than the second impeller.
摘要翻译： 具有进气壳体，泵壳体和具有两个间隔开的反向旋转叶轮的出口的水推进单元位于泵壳体中。 一个叶轮上的叶轮叶片具有与第二叶轮的叶片相反的间距。 叶轮的构造使得当叶轮通过叶轮的叶片比第二叶轮时，叶轮中的一个将赋予水更少的能量。
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公开(公告)号：US20080200082A1
公开(公告)日：2008-08-21
申请号：US11914756
申请日：2006-05-18
CPC分类号： B63H11/08 , B63H2011/085 , F04D3/00 , F04D29/181 , F04D29/185
摘要： A propulsion or pumping device which includes two counter-rotating shafts (3, 4) each carrying at least one impeller (7, 8), wherein each impeller (7, 8) can deflect by a predetermined amount in directions substantially perpendicular t to the longitudinal axis of the shaft (3, 4) on which the impeller (7, 8) is mounted.
摘要翻译： 一种推进或泵送装置，其包括两个各自承载至少一个叶轮（7,8）的反向旋转轴（3,4），其中每个叶轮（7,8）可以在基本上垂直于 安装有叶轮（7,8）的轴（3,4）的纵向轴线。
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公开(公告)号：US07566251B2
公开(公告)日：2009-07-28
申请号：US11914756
申请日：2006-05-18
IPC分类号： B63H5/10
CPC分类号： B63H11/08 , B63H2011/085 , F04D3/00 , F04D29/181 , F04D29/185
摘要： A propulsion or pumping device which includes two counter-rotating shafts (3, 4) each carrying at least one impeller (7, 8), wherein each impeller (7, 8) can deflect by a predetermined amount in directions substantially perpendicular t to the longitudinal axis of the shaft (3, 4) on which the impeller (7, 8) is mounted.
摘要翻译： 一种推进或泵送装置，其包括两个各自承载至少一个叶轮（7,8）的反向旋转轴（3,4），其中每个叶轮（7,8）可以在基本上垂直于 安装有叶轮（7,8）的轴（3,4）的纵向轴线。
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公开(公告)号：US07448926B2
公开(公告)日：2008-11-11
申请号：US10564140
申请日：2004-07-13
IPC分类号： B63H11/00
CPC分类号： B63H11/10 , B63H11/08 , B63H2011/081 , F04D1/06 , F04D3/00 , F04D29/181
摘要： A water propulsion unit having an intake housing, a pump housing and an outlet with two spaced apart counter rotating impellers being located in the pump housing. The impeller blades on one impeller have an opposite pitch to the blades of the second impeller. The impellers are configured so that one of the impellers will impart less energy to the water as it passes the blades of the impeller than the second impeller.
摘要翻译： 具有进气壳体，泵壳体和具有两个间隔开的反向旋转叶轮的出口的水推进单元位于泵壳体中。 一个叶轮上的叶轮叶片具有与第二叶轮的叶片相反的间距。 叶轮的构造使得当叶轮通过叶轮的叶片比第二叶轮时，叶轮中的一个将赋予水更少的能量。
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公开(公告)号：US20090022576A1
公开(公告)日：2009-01-22
申请号：US12243175
申请日：2008-10-01
CPC分类号： B63H11/10 , B63H11/08 , B63H2011/081 , F04D1/06 , F04D3/00 , F04D29/181
摘要： A water propulsion unit having an intake housing, a pump housing and an outlet with two spaced apart counter rotating impellers being located in the pump housing. The impeller blades on one impeller have an opposite pitch to the blades of the second impeller. The impellers are configured so that one of the impellers will impart less energy to the water as it passes the blades of the impeller than the second impeller.
摘要翻译： 具有进气壳体，泵壳体和具有两个间隔开的反向旋转叶轮的出口的水推进单元位于泵壳体中。 一个叶轮上的叶轮叶片具有与第二叶轮的叶片相反的间距。 叶轮的构造使得当叶轮通过叶轮的叶片比第二叶轮时，叶轮中的一个将赋予水更少的能量。
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