公开(公告)号：US4023941A

公开(公告)日：1977-05-17

申请号：US653034

申请日：1976-01-28

Applicant: Donald Stuart Miller

Inventor： Donald Stuart Miller

IPC: B01D19/00

CPC classification number: B01D19/0057

Abstract: Apparatus for desorbing gas from a liquid comprises a deflector for imparting a helical movement to the liquid, a nozzle forming the outlet of the deflector, a stepped desorption tube extending upwardly from the nozzle and a receptacle enclosing the outlet end of the desorption tube. A vacuum pump is connected to the receptacle to reduce pressure within the receptacle and feed and extraction pumps are respectively connected to the deflector and the receptacle to pass the liquid through the desorption tube and to remove de-gassed liquid from the receptacle. The desorption tube has an inlet end with a larger cross-sectional area than the outlet of the nozzle and a cross-section which increases stepwise along the length of the desorption tube. Liquid issues from the nozzle in the form of a divergent jet which extends radially outwards into contact with successive sections of the desorption tube which are bounded by a stepwise change in cross-sectional area to thereby seal totally enclosed spaces between the jet and said sections of the desorption tube.

Abstract translation: 用于从液体解吸气体的装置包括用于向液体施加螺旋运动的偏转器，形成偏转器出口的喷嘴，从喷嘴向上延伸的阶梯式解吸管和封闭解吸管出口端的容器。 真空泵连接到容器以减小容器内的压力，并且进料和抽出泵分别连接到偏转器和容器以使液体通过解吸管并从容器中除去去气的液体。 解吸管具有比喷嘴的出口更大的横截面积的入口端和沿着解吸管的长度逐步增加的横截面。 来自喷嘴的液体问题是以扩散射流的形式向径向向外延伸以与解吸管的连续部分接触，所述连续部分由横截面积的逐步变化限制，从而密封射流与所述部分之间的全部封闭空间 解吸管。

公开(公告)号：US20090258582A1

公开(公告)日：2009-10-15

申请号：US12083954

申请日：2006-11-02

Applicant: Donald Stuart Miller

Inventor： Donald Stuart Miller

IPC: B24C5/04 ,  B23K1/00 ,  B23P11/00

CPC classification number: B24C1/045 ,  B24C5/04 ,  Y10T29/49826 ,  Y10T29/49968

Abstract: A nozzle assembly (1) generates a jet (9) of water, or abrasive particles suspended in water, for use in an abrasive waterjet-cutting head. The nozzle assembly (1) comprises a nozzle element (5, 80, 84, 86, 91) with a tapering bore (7) therethrough, mounted to a carrier (2, 52) so that the bore (7) is connected coaxially to a passage (4) through the carrier (2, 52), the bore (7) and passage (4) preferably having the same diameter where they meet. The nozzle element comprises a superhard material, such as diamond, in the form of a solid body (5, 81, 83, 86) or a coating (90). The nozzle element is mounted to the carrier (2, 52) by a brazed or soldered joint (6), extending normally to a longitudinal axis of the passage (4) and bore (7).

Abstract translation: 喷嘴组件（1）产生用于磨料水射流切割头的水的喷射（9）或悬浮在水中的磨料颗粒。 喷嘴组件（1）包括具有穿过其中的锥形孔（7）的喷嘴元件（5,80,84,86,91），安装到载体（2,52）上，使得孔（7）同轴地连接到 通过载体（2,52）的通道（4），孔（7）和通道（4）优选地具有与它们相遇的相同直径。 喷嘴元件包括固体（5,81,83,86）或涂层（90）形式的超硬材料，例如金刚石。 喷嘴元件通过钎焊或焊接接头（6）安装到载体（2,52）上，其通常延伸到通道（4）和孔（7）的纵向轴线。

公开(公告)号：US07033256B2

公开(公告)日：2006-04-25

申请号：US10693254

申请日：2003-10-24

Applicant: Donald Stuart Miller

Inventor： Donald Stuart Miller

IPC: B24C7/00 ,  F16K31/143 ,  F16K31/363 ,  F16K31/383 ,  F16K25/00

CPC classification number: B24C11/005 ,  B24C7/0007

Abstract: A valve for controlling a flow of abrasive particles suspended in a pressurized carrier fluid has at least two apertured valve seats (74, 75) in face to face contact. One of the valve seats (74, 75) may be slid between a first position in which the apertures of each valve seat (74, 75) are aligned to allow fluid flow and a second position in which the aperture is one valve seat (74, 75) is blocked by the face of another (75, 74) to stop flow through the valve. The valve seats (74, 75) each have an outer layer of material with a hardness on the Mohs scale of at least 9, such as diamond. The valve is suitable for use in a fluid jet machining apparatus, particularly apparatus charged with a suspension of abrasive particles such as garnet in water.

Abstract translation: 用于控制悬浮在加压载体流体中的磨料颗粒的流动的阀具有至少两个面对面接触的有孔阀座（74,75）。 阀座（74,75）中的一个可以在第一位置和第二位置之间滑动，在第一位置，每个阀座（74,75）的孔对准以允许流体流动;以及第二位置，其中孔是一个阀座（74 ，75）被另一个（75,74）的面阻挡以阻止流过阀。 阀座（74,75）各自具有Mohs尺度至少为9的硬度的外层材料，例如金刚石。 该阀适用于流体喷射加工装置，特别是装有磨料颗粒如石榴石在水中的悬浮液的装置。

公开(公告)号：US08439726B2

公开(公告)日：2013-05-14

申请号：US12083954

申请日：2006-11-02

Applicant: Donald Stuart Miller

Inventor： Donald Stuart Miller

IPC: B24C5/04

CPC classification number: B24C1/045 ,  B24C5/04 ,  Y10T29/49826 ,  Y10T29/49968

Abstract: A nozzle assembly (1) generates a jet (9) of water, or abrasive particles suspended in water, for use in an abrasive waterjet-cutting head. The nozzle assembly (1) comprises a nozzle element (5, 80, 84, 86, 91) with a tapering bore (7) therethrough, mounted to a carrier (2, 52) so that the bore (7) is connected coaxially to a passage (4) through the carrier (2, 52), the bore (7) and passage (4) preferably having the same diameter where they meet. The nozzle element comprises a superhard material, such as diamond, in the form of a solid body (5, 81, 83, 86) or a coating (90). The nozzle element is mounted to the carrier (2, 52) by a brazed or soldered joint (6), extending normally to a longitudinal axis of the passage (4) and bore (7).

Abstract translation: 喷嘴组件（1）产生用于磨料水射流切割头的水的喷射（9）或悬浮在水中的磨料颗粒。 喷嘴组件（1）包括具有穿过其中的锥形孔（7）的喷嘴元件（5,80,84,86,91），安装到载体（2,52）上，使得孔（7）同轴地连接到 通过载体（2,52）的通道（4），孔（7）和通道（4）优选地具有与它们相遇的相同直径。 喷嘴元件包括固体（5,81,83,86）或涂层（90）形式的超硬材料，例如金刚石。 喷嘴元件通过钎焊或焊接接头（6）安装到载体（2,52）上，其通常延伸到通道（4）和孔（7）的纵向轴线。

公开(公告)号：US07485027B2

公开(公告)日：2009-02-03

申请号：US10579698

申请日：2004-11-15

Applicant: Donald Stuart Miller

Inventor： Donald Stuart Miller

IPC: B24B1/00 ,  B24C3/00

CPC classification number: B24C5/02 ,  B24C1/045 ,  B24C7/0076

Abstract: A method for generating a high-velocity cutting jet comprises forming a high velocity jet of a liquid such as water, forming a suspension of an abrasive such as garnet in a carrier gas containing a condensable vapour such as superheated steam, and entraining the abrasive suspension into the liquid jet so that the vapour condenses, producing a cutting jet of a liquid/abrasive mixture. A cutting head of apparatus for generating the cutting jet has a chamber into which the abrasive suspension is passed. The liquid jet traverses this chamber, entraining the suspension, and passes into a tapering transition region and a bore of a nozzle. Kinetic energy is transferred from the liquid jet to the abrasive as they pass trough the chamber and the nozzle. Condensation of the vapour ensures that the cutting jet leaves the nozzle at close to ambient pressure, reducing the diameter of the cutting jet compared to conventional abrasive-in-air systems, so as to increase the energy density of the abrasive.

Abstract translation: 用于产生高速切割射流的方法包括形成诸如水的液体的高速射流，在包含诸如过热蒸汽的可冷凝蒸气的载气中形成磨料如石榴石的悬浮液，并夹带研磨悬浮液 进入液体射流，使得蒸汽冷凝，产生液体/磨料混合物的切割射流。 用于产生切割射流的装置的切割头具有研磨悬浮液通过的腔室。 液体射流穿过该腔室，夹带悬架，并进入锥形过渡区域和喷嘴孔。 当液体射流通过腔室和喷嘴时，动能从液体射流传递到磨料。 蒸汽的冷凝确保切割喷嘴在接近环境压力下离开喷嘴，与常规的研磨空气系统相比减小了切割射流的直径，从而增加了研磨剂的能量密度。

公开(公告)号：US06276993B1

公开(公告)日：2001-08-21

申请号：US09308301

申请日：1999-09-02

Applicant: Donald Stuart Miller

Inventor： Donald Stuart Miller

IPC: B24B100

CPC classification number: F04B9/1035 ,  B24C1/045 ,  B24C5/04 ,  B24C7/0076 ,  F04F5/10

Abstract: The apparatus comprises a storage vessel (19) for abrasive particles, a source of pressurised carrier fluid and a first conduit (11) to convey at least a major proportion of the incoming carrier fluid to a nozzle (16). A second conduit (9) connects the source of carrier fluid to an inlet of the storage vessel (19) and a third conduit (18) connects its outlet to the nozzle (16). A switching device (6) is selectively operable either to allow a minor proportion of incoming carrier fluid to flow through the second conduit (9) to the storage vessel (19), or to direct all of the carrier fluid through the first conduit (11). When a minor proportion of carrier fluid is directed through the second conduit (9), abrasive particles in carrier fluid are discharged from storage vessel (19) into the third conduit (18). When all of the carrier fluid is directed through the first conduit (11), fluid from the second conduit is entrained, thereby reversing fluid flow in the second (9) and third (18) conduits. The source of pressurised carrier fluid is preferably an intensifier plunger pump which has bearing surfaces (203) to guide a reciprocating cylinder (204). One end of the reciprocating cylinder (204) is closed and carries a plunger (201) and a connection (215) for driving fluid to enter the cylinder for the pump return stroke. The other end of the cylinder (204) has a piston (205) movable within a fixed cylinder (206) on which driving fluid acts during the pump delivery stroke.

Abstract translation: 该装置包括用于磨料颗粒的储存容器（19），加压载体流体源和用于将至少大部分进料载体流体输送到喷嘴（16）的第一导管（11）。 第二导管（9）将载体流体源连接到储存容器（19）的入口，并且第三导管（18）将其出口连接到喷嘴（16）。 切换装置（6）可选择性地操作以允许少量进入的载体流体通过第二导管（9）流到储存容器（19），或者将所有载体流体引导通过第一导管（11 ）。 当少量载体流体被引导通过第二导管（9）时，载体流体中的磨料颗粒从储存容器（19）排出到第三导管（18）中。 当所有载体流体被引导通过第一导管（11）时，来自第二导管的流体被夹带，从而反转第二（9）和第三（18）导管中的流体流动。 加压载体流体源优选地是具有用于引导往复运动气缸（204）的轴承表面（203）的增压器柱塞泵。 往复式气缸（204）的一端是封闭的并带有用于驱动流体的柱塞（201）和连接件（215），以进入用于泵返回冲程的气缸。 气缸（204）的另一端具有可在固定气缸（206）内移动的活塞（205），驱动流体在泵输送冲程期间起作用。