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1. 发明授权

US06457485B2 Rotary valve assembly for pressure swing absorption system 有权
标题翻译：用于压力摆动吸收系统的旋转阀组件
公开(公告)号：US06457485B2
公开(公告)日：2002-10-01
申请号：US09925146
申请日：2001-08-08
申请人： Theodore B. Hill , Charles C. Hill , Adam C. Hansen
发明人： Theodore B. Hill , Charles C. Hill , Adam C. Hansen
IPC分类号： F16K11085
CPC分类号： B01D53/0446 , B01D53/0423 , B01D53/047 , B01D53/06 , B01D2253/102 , B01D2259/40005 , B01D2259/40086 , B01D2259/4068 , F16K11/074 , Y10T137/0419 , Y10T137/4259 , Y10T137/5762 , Y10T137/86549 , Y10T137/86863
摘要： The present invention relates to a rotary valve assembly for a pressure swing adsorption system. The rotary valve assembly includes a first valve member and a second valve member relatively rotatable about a common center of rotation to provide valving action for selectively transferring fluids therethrough. The second valve member has a first fluid section with at least one aperture adapted for transferring a first fluid of a first pressure and composition therethrough and a second fluid section with at least one aperture adapted for transferring a second fluid of a second pressure and composition therethrough. The first valve member has a first fluid section with at least one passage for transferring the first fluid in the valve assembly and a second fluid section with at least one passage for transferring the second fluid in the valve assembly. A vent is located between the first fluid sections and the second fluid sections of the valve assembly and is vented to a pressure lower than the pressures of the first and second fluids so as to vent leakage from either of the sections of the valve assembly. The rotary valve assembly further includes means for effecting relative rotation of the first valve member and second valve member.
摘要翻译：本发明涉及一种用于变压吸附系统的旋转阀组件。旋转阀组件包括第一阀构件和第二阀构件，该第二阀构件和第二阀构件围绕公共旋转中心相对旋转以提供用于选择性地将流体流经的流动作用。第二阀构件具有第一流体部分，其具有至少一个适于传递第一压力和组成的第一流体的孔口，以及具有至少一个孔口的第二流体部分，该孔口适于传递第二压力和组成的第二流体。第一阀构件具有第一流体段，其具有用于传递阀组件中的第一流体的至少一个通道和具有至少一个通道的第二流体段，用于将第二流体转移到阀组件中。排气口位于第一流体部分和阀组件的第二流体部分之间，并且被排放到低于第一和第二流体的压力的压力，以便排出阀组件的任一部分的泄漏。旋转阀组件还包括用于实现第一阀构件和第二阀构件的相对旋转的装置。

2. 发明授权

US06712087B2 Rotary valve assembly for pressure swing adsorption system 有权
标题翻译：用于变压吸附系统的旋转阀组件
公开(公告)号：US06712087B2
公开(公告)日：2004-03-30
申请号：US10143373
申请日：2002-05-10
申请人： Theodore B. Hill , Charles C. Hill , Adam C. Hansen
发明人： Theodore B. Hill , Charles C. Hill , Adam C. Hansen
IPC分类号： B01D53047
CPC分类号： B01D53/0446 , B01D53/0423 , B01D53/047 , B01D53/06 , B01D2253/102 , B01D2259/40005 , B01D2259/40086 , B01D2259/4068 , F16K11/074 , Y10T137/0419 , Y10T137/4259 , Y10T137/5762 , Y10T137/86549 , Y10T137/86863
摘要： The present invention relates to a rotary valve assembly for a pressure swing adsorption system. The rotary valve assembly includes a first valve member and a second valve member relatively rotatable about a common center of rotation to provide valving action for selectively transferring fluids therethrough. The second valve member has a first fluid section with at least one aperture adapted for transferring a first fluid of a first pressure and composition therethrough and a second fluid section with at least one aperture adapted for transferring a second fluid of a second pressure and composition therethrough. The first valve member has a first fluid section with at least one passage for transferring the first fluid in the valve assembly and a second fluid section with at least one passage for transferring the second fluid in the valve assembly. A vent is located between the first fluid sections and the second fluid sections of the valve assembly and is vented to a pressure lower than the pressures of the first and second fluids so as to vent leakage from either of the sections of the valve assembly. The rotary valve assembly further includes means for effecting relative rotation of the first valve member and second valve member.
摘要翻译：本发明涉及一种用于变压吸附系统的旋转阀组件。旋转阀组件包括第一阀构件和第二阀构件，该第二阀构件和第二阀构件围绕公共旋转中心相对旋转以提供用于选择性地将流体流经的流动作用。第二阀构件具有第一流体部分，其具有至少一个适于传递第一压力和组成的第一流体的孔口，以及具有至少一个孔口的第二流体部分，该孔口适于传递通过其的第二压力和组成的第二流体。第一阀构件具有第一流体段，其具有用于传递阀组件中的第一流体的至少一个通道和具有至少一个通道的第二流体段，用于将第二流体转移到阀组件中。排气口位于第一流体部分和阀组件的第二流体部分之间，并且被排放到低于第一和第二流体的压力的压力，以便从阀组件的任一部分排出泄漏。旋转阀组件还包括用于实现第一阀构件和第二阀构件的相对旋转的装置。

3. 发明授权

US06311719B1 Rotary valve assembly for pressure swing adsorption system 有权
标题翻译：用于变压吸附系统的旋转阀组件
公开(公告)号：US06311719B1
公开(公告)日：2001-11-06
申请号：US09371464
申请日：1999-08-10
申请人： Theodore B. Hill , Charles C. Hill , Adam C. Hansen
发明人： Theodore B. Hill , Charles C. Hill , Adam C. Hansen
IPC分类号： B01D53047
CPC分类号： B01D53/0446 , B01D53/0423 , B01D53/047 , B01D53/06 , B01D2253/102 , B01D2259/40005 , B01D2259/40086 , B01D2259/4068 , F16K11/074 , Y10T137/0419 , Y10T137/4259 , Y10T137/5762 , Y10T137/86549 , Y10T137/86863
摘要： The present invention relates to a rotary valve assembly for a pressure swing adsorption system. The rotary valve assembly includes a first valve member and a second valve member relatively rotatable about a common center of rotation to provide valving action for selectively transferring fluids therethrough. The second valve member has a first fluid section with at least one aperture adapted for transferring a first fluid of a first pressure and composition therethrough and a second fluid section with at least one aperture adapted for transferring a second fluid of a second pressure and composition therethrough. The first valve member has a first fluid section with at least one passage for transferring the first fluid in the valve assembly and a second fluid section with at least one passage for transferring the second fluid in the valve assembly. A vent is located between the first fluid sections and the second fluid sections of the valve assembly and is vented to a pressure lower than the pressures of the first and second fluids so as to vent leakage from either of the sections of the valve assembly. The rotary valve assembly further includes means for effecting relative rotation of the first valve member and second valve member.
摘要翻译：本发明涉及一种用于变压吸附系统的旋转阀组件。旋转阀组件包括第一阀构件和第二阀构件，该第二阀构件和第二阀构件围绕公共旋转中心相对旋转以提供用于选择性地将流体流经的流动作用。第二阀构件具有第一流体部分，其具有至少一个适于传递第一压力和组成的第一流体的孔口，以及具有至少一个孔口的第二流体部分，该孔口适于传递通过其的第二压力和组成的第二流体。第一阀构件具有第一流体段，其具有用于传递阀组件中的第一流体的至少一个通道和具有至少一个通道的第二流体段，用于将第二流体转移到阀组件中。排气口位于第一流体部分和阀组件的第二流体部分之间，并且被排放到低于第一和第二流体的压力的压力，以便排出阀组件的任一部分的泄漏。旋转阀组件还包括用于实现第一阀构件和第二阀构件的相对旋转的装置。

4. 发明授权

US06671911B1 Continuous wave cushioned support 失效
标题翻译：连续波缓冲支撑
公开(公告)号：US06671911B1
公开(公告)日：2004-01-06
申请号：US09574939
申请日：2000-05-19
申请人： Charles C. Hill , Theodore B. Hill , Carly A. Anderson
发明人： Charles C. Hill , Theodore B. Hill , Carly A. Anderson
IPC分类号： A47C2710
CPC分类号： A61G7/05776 , A61G5/1043 , A61G5/1045
摘要： Multiple foam-filled cells form a cushioned support surface of a seat or mattress. Individual cells may be collapsed by connection through a manifold and valve to a vacuum source. The collapsed cell essentially removes contact pressure in a localized area of the person supported on the surface and restores localized blood flow. After a pre-determined time interval, atmospheric pressure is readmitted to the cell.
摘要翻译：多个泡沫填充的细胞形成座椅或床垫的缓冲支撑表面。单个电池可以通过通过歧管和阀连接到真空源而折叠。塌陷的细胞基本上去除了支撑在表面上的人的局部区域中的接触压力并恢复局部血流。在预定的时间间隔之后，将大气压力重新提供给电池。

5. 发明授权

US5730778A Fluid fractionator 失效
$Fluid fractionator$
标题翻译：流体分馏器
公开(公告)号：US5730778A
公开(公告)日：1998-03-24
申请号：US734203
申请日：1996-10-21
申请人： Charles C. Hill , Theodore B. Hill
发明人： Charles C. Hill , Theodore B. Hill
IPC分类号： B01D53/04 , B01D53/047 , B01D53/053
CPC分类号： B01D53/0446 , B01D2256/12 , B01D2257/102 , B01D2259/40005 , B01D2259/40007 , B01D2259/4533 , B01D53/0423 , B01D53/047
摘要： A rotary valve at the inlets of a plurality of columns cyclically (1) selects first columns on a cyclic basis to receive compressed air, adsorb nitrogen and other components in the compressed air and pass oxygen and argon to a user (e.g. patient), second columns to desorb the adsorbed components in such columns and (3) third columns to equalize pressures where the first columns change progressively to the second columns and vice versa. A compressor having adjustable characteristics and regulated in an open or closed loop introduces the compressed air through the valve to the first columns to provide an adjustable air flow for obtaining a prescribed oxygen flow to the user. An indication may be provided when the compressor characteristics regulated for obtaining the prescribed oxygen flow rate are outside particular limits. The valve may have a variable speed related to the compressor flow variations to regulate the air pressure in the columns in accordance with the air flow rate into the columns. A variable orifice in a valve in each column outlet becomes constricted with decreases in the oxygen flow rate in each column, thereby further regulating the oxygen pressure in such column. A porous plug in a closed chamber receiving the desorbed pressurized components releases such components slowly, without pulsatile noise, to the atmosphere. The equipment accordingly produces the desired oxygen flow rate with minimal power consumption, minimal noise and optimal efficiency, reliability and life span. The equipment may be designed to pass other components than oxygen.
摘要翻译：循环地在多个塔的入口处的旋转阀（1）循环选择第一列以接收压缩空气，吸附压缩空气中的氮气和其它组分并将氧气和氩气传递给用户（例如患者），第二柱以解吸这些塔中的吸附组分，和（3）第三列以均衡第一列逐渐变化到第二列的压力，反之亦然。具有可调节特性并在开环或闭环中调节的压缩机将压缩空气通过阀引入第一列，以提供可调节的空气流，以获得规定的氧气流向用户。当为获得规定的氧气流量而调节的压缩机特性在特定限度之外时，可以提供指示。阀可以具有与压缩机流量变化相关的可变速度，以根据进入塔的空气流速来调节塔中的空气压力。每个柱出口中的阀中的可变孔口随着每个柱中的氧气流速的降低而变窄，从而进一步调节该塔中的氧气压力。接收解吸的加压组件的封闭室中的多孔塞将这些部件缓慢地释放到大气中，没有脉动的噪音。因此，设备以最小的功率消耗，最小的噪音和最佳的效率，可靠性和使用寿命产生所需的氧气流速。设备可以设计成通过其他组件而不是氧气。

6. 发明授权

US07455504B2 High efficiency fluid movers 失效
标题翻译：高效流体动力
公开(公告)号：US07455504B2
公开(公告)日：2008-11-25
申请号：US11335284
申请日：2006-01-19
申请人： Charles C. Hill , Theodore B. Hill
发明人： Charles C. Hill , Theodore B. Hill
IPC分类号： F04D29/44
CPC分类号： F04D29/281 , F04D17/167 , F04D29/681 , F04D29/703
摘要： Fluid movers produce at least predominantly laminar flow internally in an axial or a radial direction in a rotor. A fluid mover rotor comprises a matrix of passages of appropriate size to produce at least predominantly laminar flow spaced circumferentially around the rotor. The passages may provide axial, radial or mixed flow. “Appropriate” dimensions may be selected for a specified volume flow rate. In a radial embodiment, a matrix of radially extending passages could comprise walls having an axial height projecting from an annular disk. The passages may be offset with respect to the radial direction to provide an angle of attack that minimizes incidence losses. The matrix structure allows the use of thin-walled passages to minimize blockage of entering air.
摘要翻译：流体驱动器在转子中沿轴向或径向内部至少主要产生层流。流体移动器转子包括适当尺寸的通道矩阵，以产生至少主要在转子周围间隔开的层流。通道可以提供轴向，径向或混合流。可以为指定的体积流量选择“适当的”尺寸。在径向实施例中，径向延伸通道的矩阵可以包括具有从环形盘突出的轴向高度的壁。通道可以相对于径向方向偏移以提供使入射损失最小化的迎角。矩阵结构允许使用薄壁通道来最小化进入空气的阻塞。

7. 发明授权

US06698423B1 Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator 有权
标题翻译：从氧气浓缩器产生液体动态氧气的方法和装置
公开(公告)号：US06698423B1
公开(公告)日：2004-03-02
申请号：US09420892
申请日：1999-10-19
申请人： Scott C. Honkonen , Theodore B. Hill , Charles C. Hill , Graham Walker
发明人： Scott C. Honkonen , Theodore B. Hill , Charles C. Hill , Graham Walker
IPC分类号： A62B706
CPC分类号： B01D53/0454 , A61M2202/0208 , A61M2202/03 , B01D5/0039 , B01D53/047 , B01D2256/12 , B01D2259/40001 , B01D2259/40009 , B01D2259/416 , B01D2259/4533 , B01D2259/455 , F17C6/00 , F17C2201/058 , F17C2203/0391 , F17C2205/0326 , F17C2205/0332 , F17C2205/0341 , F17C2221/011 , F17C2227/04 , F17C2250/032 , F17C2250/0408 , F17C2250/043 , F17C2250/0439 , F17C2250/0452 , F17C2260/02 , F17C2270/025 , F17C2270/0509 , F25B9/006 , F25B9/145 , F25J1/0017 , F25J1/0052 , F25J1/0212 , F25J1/0225 , F25J1/0244 , F25J1/0276 , F25J2205/40 , F25J2205/60 , F25J2205/80 , F25J2210/40 , F25J2220/50 , F25J2270/90 , F25J2270/91 , A61M2202/0007
摘要： The present invention is directed to a much safer and less expensive way of providing portable oxygen from a gas concentrator for patients who do not want to be tied to a stationary machine or restricted by present oxygen technology. The present invention involves a home liquid oxygen ambulatory system for supplying a portable supply of oxygen, where a portion of the gaseous oxygen output obtained from an oxygen concentrator is condensed into liquid oxygen. The system includes an oxygen concentrator which separates oxygen gas from the ambient air, a condenser in communication with the oxygen concentrator for receiving and liquefying the oxygen gas flow, a cryocooler associated with the condenser, and a first storage dewar in fluid communication with the condenser and adapted to store the oxygen liquefied by the condenser, the first storage dewar including means for transferring liquid oxygen from the first dewar to a second dewar for storing a quantity of oxygen suitable for moveable oxygen treatment.
摘要翻译：本发明涉及一种从气体浓缩器提供便携式氧气的安全性和价格较低的方法，用于不希望被固定式机器束缚或受现有氧气技术限制的患者。本发明涉及用于提供便携式氧气供应的家用液体氧气移动系统，其中从氧气浓缩器获得的部分气态氧气输出被冷凝成液氧。该系统包括将氧气与环境空气分离的氧浓缩器，与氧浓缩器连通的用于接收和液化氧气流的冷凝器，与冷凝器相关的低温冷却器，以及与冷凝器流体连通的第一储存杜瓦瓶并且适于存储由冷凝器液化的氧气，第一储存杜瓦包括用于将液氧从第一杜瓦转移到第二杜瓦瓶的装置，用于储存适于可移动氧处理的氧气量。

8. 发明授权

US06651653B1 Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator 有权
标题翻译：从氧气浓缩器产生液体动态氧气的方法和装置
公开(公告)号：US06651653B1
公开(公告)日：2003-11-25
申请号：US09342890
申请日：1999-06-29
申请人： Scott C. Honkonen , Theodore B. Hill , Charles C. Hill , Graham Walker
发明人： Scott C. Honkonen , Theodore B. Hill , Charles C. Hill , Graham Walker
IPC分类号： A62B706
CPC分类号： B01D53/0454 , A61M2202/0208 , A61M2202/03 , B01D5/0039 , B01D53/047 , B01D2256/12 , B01D2259/40001 , B01D2259/40009 , B01D2259/416 , B01D2259/4533 , B01D2259/455 , F17C6/00 , F17C2201/058 , F17C2203/0391 , F17C2205/0326 , F17C2205/0332 , F17C2205/0341 , F17C2221/011 , F17C2227/04 , F17C2250/032 , F17C2250/0408 , F17C2250/043 , F17C2250/0439 , F17C2250/0452 , F17C2260/02 , F17C2270/025 , F17C2270/0509 , F25B9/006 , F25B9/145 , F25J1/0017 , F25J1/0052 , F25J1/0212 , F25J1/0225 , F25J1/0244 , F25J1/0276 , F25J2205/40 , F25J2205/60 , F25J2205/80 , F25J2210/40 , F25J2220/50 , F25J2270/90 , F25J2270/91 , A61M2202/0007
摘要： The present invention is directed to a much safer and less expensive way of providing portable oxygen from a gas concentrator for patients who do not want to be tied to a stationary machine or restricted by present oxygen technology. In one preferred embodiment, the present invention splits off some of the excess capacity gas flow from a gas concentrator which is then stored via liquefaction. The stored gas can then be used as a portable supply. A portion of the oxygen gas flow generated by the oxygen concentrator is channeled to a condenser which receives and liquefies the oxygen gas using cryocooler. A storage dewar is used for storing the oxygen liquefied by the condenser. Liquid is then selectively transferred to a smaller portable dewar. A controller can be used for monitoring the parameters of liquefaction, including oxygen concentration, the amount of liquid oxygen in the dewar, and for controlling the parameters of liquid oxygen generation and transfer. In one embodiment, the flow rate into the condenser is chosen to exceed the capacity of the condenser to minimize the liquefaction of argon, nitrogen and trace gases, and to purge the system. In another embodiment, condenser parameters are controlled in certain ranges and a unique condenser design is also disclosed. Also disclosed is a representative method for controlling the system using a microprocessor with a database and control functions which senses various parameters relating to the liquefaction, provides the microprocessor with the sensed parameters, calculates optimal conditions, and controls the liquefaction process.
摘要翻译：本发明涉及一种从气体浓缩器提供便携式氧气的安全性和价格较低的方法，用于不希望被固定式机器束缚或受现有氧气技术限制的患者。在一个优选实施例中，本发明从气体浓缩器中分离出一些过剩容量的气流，然后通过液化将其储存。然后可以将储存的气体用作便携式电源。由氧浓缩器产生的氧气流的一部分被引导到冷凝器，该冷凝器使用低温冷却器接收和液化氧气。储存杜瓦瓶用于储存由冷凝器液化的氧气。然后将液体选择性地转移到较小的便携式杜瓦瓶中。控制器可用于监测液化参数，包括氧浓度，杜瓦瓶中的液氧量，以及用于控制液氧生成和转移的参数。在一个实施例中，进入冷凝器的流量被选择为超过冷凝器的容量以最小化氩气，氮气和痕量气体的液化并清除系统。在另一个实施例中，冷凝器参数被控制在一定范围内，并且还公开了独特的冷凝器设计。还公开了一种使用具有数据库和控制功能的微处理器来控制系统的代表性方法，该功能检测与液化有关的各种参数，向微处理器提供所感测的参数，计算最佳条件并控制液化过程。

9. 再颁专利

USRE43398E1 Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator 有权
标题翻译：从氧气浓缩器产生液体动态氧气的方法和装置
公开(公告)号：USRE43398E1
公开(公告)日：2012-05-22
申请号：US11366986
申请日：2006-03-01
申请人： Scott C. Honkonen , Theodore B. Hill , Charles C. Hill , Graham Walker , Ann Valentine Walker, legal representative
发明人： Scott C. Honkonen , Theodore B. Hill , Charles C. Hill , Graham Walker
IPC分类号： A62B7/06 , A62B7/00
CPC分类号： B01D5/0039 , B01D53/047 , B01D53/053 , B01D53/261 , B01D2253/108 , B01D2253/116 , B01D2256/12 , B01D2257/102 , B01D2257/404 , B01D2257/502 , B01D2257/504 , B01D2257/80 , B01D2259/40001 , B01D2259/40009 , B01D2259/416 , B01D2259/4525 , B01D2259/4533 , B01D2259/4541 , B01D2259/455 , F17C6/00 , F17C2221/011 , F17C2223/0161 , F17C2227/0353 , F17C2265/015 , F17C2270/0509 , F25B9/006 , F25B9/145 , F25J1/0017 , F25J1/0052 , F25J1/0212 , F25J1/0225 , F25J1/0244 , F25J1/0276 , F25J2205/40 , F25J2205/60 , F25J2205/80 , F25J2210/40 , F25J2220/50 , F25J2270/90 , F25J2270/91 , Y02C10/08 , Y02P70/34
摘要： The present invention is directed to a much safer and less expensive way of providing portable oxygen from a gas concentrator for patients who do not want to be tied to a stationary machine or restricted by present oxygen technology. The present invention involves a home liquid oxygen ambulatory system for supplying a portable supply of oxygen, where a portion of the gaseous oxygen output obtained from an oxygen concentrator is condensed into liquid oxygen. The system includes an oxygen concentrator which separates oxygen gas from the ambient air, a condenser in communication with the oxygen concentrator for receiving and liquefying the oxygen gas flow, a cryocooler associated with the condenser, and a first storage dewar in fluid communication with the condenser and adapted to store the oxygen liquefied by the condenser, the first storage dewar including means for transferring liquid oxygen from the first dewar to a second dewar for storing a quantity of oxygen suitable for moveable oxygen treatment.
摘要翻译：本发明涉及一种从气体浓缩器提供便携式氧气的安全性和价格较低的方法，用于不希望被固定式机器束缚或受现有氧气技术限制的患者。本发明涉及用于提供便携式氧气供应的家用液体氧气移动系统，其中从氧气浓缩器获得的部分气态氧气输出被冷凝成液氧。该系统包括将氧气与环境空气分离的氧浓缩器，与氧浓缩器连通的用于接收和液化氧气流的冷凝器，与冷凝器相关的低温冷却器，以及与冷凝器流体连通的第一储存杜瓦瓶并且适于存储由冷凝器液化的氧气，第一储存杜瓦包括用于将液氧从第一杜瓦转移到第二杜瓦瓶的装置，用于储存适于可移动氧处理的氧气量。

10. 发明申请

US20090135560A1 HIGH EFFICIENCY FLUID MOVERS 审中-公开
标题翻译：高效流体动力
公开(公告)号：US20090135560A1
公开(公告)日：2009-05-28
申请号：US12274297
申请日：2008-11-19
申请人： Charles C. Hill , Theodore B. Hill
发明人： Charles C. Hill , Theodore B. Hill
IPC分类号： H05K7/20
CPC分类号： F04D29/281 , F04D17/167 , F04D29/681 , F04D29/703
摘要： Fluid movers produce at least predominantly laminar flow internally in an axial or a radial direction in a rotor. A fluid mover rotor comprises a matrix of passages of appropriate size to produce at least predominantly laminar flow spaced circumferentially around the rotor. The passages may provide axial, radial or mixed flow. “Appropriate” dimensions may be selected for a specified volume flow rate. In a radial embodiment, a matrix of radially extending passages could comprise walls having an axial height projecting from an annular disk. The passages may be offset with respect to the radial direction to provide an angle of attack that minimizes incidence losses. The matrix structure allows the use of thin-walled passages to minimize blockage of entering air.
摘要翻译：流体驱动器在转子中沿轴向或径向内部至少主要产生层流。流体移动器转子包括适当尺寸的通道矩阵，以产生至少主要在转子周围间隔开的层流。通道可以提供轴向，径向或混合流。可以为指定的体积流量选择“适当的”尺寸。在径向实施例中，径向延伸通道的矩阵可以包括具有从环形盘突出的轴向高度的壁。通道可以相对于径向方向偏移以提供使入射损失最小化的迎角。矩阵结构允许使用薄壁通道来最小化进入空气的阻塞。

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