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公开(公告)号：US5837959A
公开(公告)日：1998-11-17
申请号：US536622
申请日：1995-09-28
CPC分类号： H05H1/42 , H05H2001/3463 , H05H2001/3478
摘要： A single cathode plasma gun injects powder therein so that the powder exits along a central axis of an exit barrel of the gun, in order to provide improved coatings of the powder material on a workpiece. The central axis of the single cathode extends from an arc chamber and intersects with the central axis of the exit barrel so as to form an acute angle which is substantially greater than 0.degree. but no greater than 90.degree.. Examples of the acute angle include 45.degree. and 10.degree.. A powder feed passage extends along an axis which may be coincident with the central axis of the exit barrel or may form an angle with the central axis of the exit barrel of as much as 45.degree.. Consequently, the axis of the powder feed passage forms an angle with the central axis of the single cathode which is at least as great as the acute angle between the central axes of the single cathode and the exit barrel. Existing plasma guns can be retrofitted with a new anode attachment to achieve desired angles of plasma flow and powder delivery. Where the central axis of the single cathode forms an acute angle with the central axis of the exit barrel, the resulting bend in the passage extending from the arc chamber below the single cathode is disposed adjacent an entry end of the exit barrel, and the powder feed passage terminates adjacent such bend. Alternatively, the powder can be introduced into the middle of the plasma stream at the entry end of the exit barrel by a powder injector extending into the exit barrel from the wall of the passage. The single cathode can be axially adjusted to move the charged plasma region adjacent the termination of the powder feed passage, for more effective heating of the powder. The angles formed by the central axes of the single cathode and the powder feed passage relative to the central axis of the exit barrel can be adjusted relative to each other so that the injected powder is deflected along the central axis of the exit barrel, again providing for an improved coating of the powder material on a workpiece.
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2.发明授权公开(公告)号：US08747101B2
公开(公告)日：2014-06-10
申请号：US11314530
申请日：2005-12-22
申请人： William P. Rusch , Mark Spaulding , Martin Hacker
发明人： William P. Rusch , Mark Spaulding , Martin Hacker
IPC分类号： F23D11/44
CPC分类号： F23D11/44 , C23C4/129 , F23C2900/03005 , F23D11/102 , F23D2900/00006 , F23K2301/204 , F23L7/007 , Y02E20/344
摘要： The present invention provides a burner design and method for a high velocity oxygen fuel (HVOF) liquid fuel gun that generates turbulent atomization and uses one or more jets as an injection method for liquid fuel and oxygen to improve the combustion inside the combustion chamber. The burner uses preheated oxygen and preheated fuel to improve vaporization prior to combustion of the fuel.
摘要翻译： 本发明提供了一种用于产生湍流雾化的高速氧燃料（HVOF）液体燃料喷枪的燃烧器设计和方法，并且使用一个或多个射流作为液体燃料和氧气的喷射方法来改善燃烧室内的燃烧。 燃烧器使用预热的氧气和预热的燃料来改善在燃料燃烧之前的汽化。
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公开(公告)号：US5148986A
公开(公告)日：1992-09-22
申请号：US732978
申请日：1991-07-19
申请人： William P. Rusch
发明人： William P. Rusch
IPC分类号： B05B7/20
CPC分类号： B05B7/205
摘要： A high velocity thermal spray gun includes a nozzle member injecting an annular flow of combustible mixture at high pressure into a constricted gas cap. An outer flow of air is injected adjacent to the gas cap wall. Powder is fed axially from the nozzle member into the combustion chamber. An annular inner flow of air is injected coaxially outwardly of the powder. The nozzle face has a shallow annular slot therein between the outer and inner gas injections. Combustion gas and oxygen flow through separate annular gas channels to mutually impinge at the inlet end of the slot for effectual mixing, so that combusting of the combustible mixture is rooted in the annular slot.
摘要翻译： 高速热喷枪包括将高压可燃混合物的环形流注射到收缩的气帽中的喷嘴构件。 外部空气流被喷射到气盖壁附近。 粉末从喷嘴构件轴向地进入燃烧室。 将空气的环形内部空气同时注入到粉末外部。 喷嘴面在外部和内部气体喷射之间具有浅的环形槽。 燃烧气体和氧气通过独立的环形气体通道相互撞击在狭槽的入口端，以进行有效的混合，使得可燃混合物的燃烧根植于环形槽中。
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公开(公告)号：US6042019A
公开(公告)日：2000-03-28
申请号：US650082
申请日：1996-05-17
申请人： William P. Rusch
发明人： William P. Rusch
CPC分类号： B05B7/205
摘要： A gas cap for a thermal spray gun has a spray passage extending from the combustion chamber to an exit end, and a thermal spray material is fed into the passage. A nozzle component of the gas cap is formed of a tubular inner member in thermal contact with a metallic outer member, such as copper, that is in contact with a fluid coolant. The inner member is formed of a hard, thermally conductive material, preferably a carbide in a metal matrix, such as tungsten carbide in cobalt.
摘要翻译： 用于热喷枪的气帽具有从燃烧室延伸到出口端的喷射通道，并且热喷涂材料被供给到通道中。 气帽的喷嘴部件由与流体冷却剂接触的金属外部构件（例如铜）热接触的管状内部构件形成。 内部构件由硬导热材料形成，优选为金属基体中的碳化物，例如钴中的碳化钨。
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公开(公告)号：US4780591A
公开(公告)日：1988-10-25
申请号：US21958
申请日：1987-03-05
CPC分类号： H05H1/42 , H05H1/3405 , H05H1/36 , H05H2001/3436 , H05H2001/3452 , H05H2001/3478 , H05H2001/3494
摘要： A plasma generating system comprises a plasma gun including a hollow cylindrical anode member, a hollow cylindrical intermediate member electrically isolated from and juxtaposed coaxially with the anode member to form a plasma-forming gas passage through the intermediate member and the anode member, and an axially movable cathode member. The intermediate member comprises tubular segments separated by resilient insulating spacing rings held in compression. Arc radiation is blocked from the spacer rings by meanders in the inter-segment slots and further by ceramic barrier rings. An electric motor or pneumatic piston responsive to a measurement of arc voltage continually adjusts the axial position of the cathode tip relative to the anode nozzle so as to maintain a predetermined arc voltage.
摘要翻译： 一种等离子体发生系统包括等离子体枪，其包括中空圆柱形阳极部件，与阳极部件电气隔离并与其并列的中空圆柱形中间部件，以形成穿过中间部件和阳极部件的等离子体形成气体通道， 可动阴极部件。 中间构件包括由保持压缩的弹性绝缘间隔环分开的管状段。 电弧辐射通过段间隙中的曲折而进一步由隔离环阻挡，并且还通过陶瓷阻挡环阻挡。 响应于电弧电压测量的电动机或气动活塞连续地调节阴极尖端相对于阳极喷嘴的轴向位置，以便保持预定的电弧电压。
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