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公开(公告)号：US08580911B2
公开(公告)日：2013-11-12
申请号：US13126607
申请日：2009-10-30
CPC分类号： C09K8/588 , C08G64/0208 , C08G64/18 , C08G64/183 , C08G65/48 , C08G81/00 , C08L69/00 , C09K8/594 , E21B43/16 , Y02P20/544
摘要： The disclosure pertains to amphiphilic block copolymers comprising an aliphatic polycarbonate chain coupled to a hydrophilic polymer. Such amphiphilic polymers may have the formula A-L-B, where A- is a polycarbonate or polyethercarbonate chain having from about 3 to about 500 repeating units, L is a linker moiety and —B is a hydrophilic oligomer having from about 4 to about 200 repeating units. Provided copolymers are useful as surfactants capable of emulsifying aqueous solutions and supercritical carbon dioxide. Provided copolymers also have utility as additives for use in enhanced oil recovery methods.
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公开(公告)号：US20110218127A1
公开(公告)日：2011-09-08
申请号：US13126607
申请日：2009-10-30
CPC分类号： C09K8/588 , C08G64/0208 , C08G64/18 , C08G64/183 , C08G65/48 , C08G81/00 , C08L69/00 , C09K8/594 , E21B43/16 , Y02P20/544
摘要： The disclosure pertains to amphiphilic block copolymers comprising an aliphatic polycarbonate chain coupled to a hydrophilic polymer. Such amphiphilic polymers may have the formula A-L-B, where A- is a polycarbonate or polyethercarbonate chain having from about 3 to about 500 repeating units, L is a linker moiety and —B is a hydrophilic oligomer having from about 4 to about 200 repeating units. Provided copolymers are useful as surfactants capable of emulsifying aqueous solutions and supercritical carbon dioxide. Provided copolymers also have utility as additives for use in enhanced oil recovery methods.
摘要翻译： 本公开涉及包含与亲水性聚合物偶合的脂族聚碳酸酯链的两亲性嵌段共聚物。 这种两亲聚合物可以具有式A-L-B，其中A-是具有约3至约500个重复单元的聚碳酸酯或聚醚碳酸酯链，L是连接部分，-B是具有约4至约200个重复单元的亲水性低聚物。 提供的共聚物可用作能够乳化水溶液和超临界二氧化碳的表面活性剂。 提供的共聚物也可用作用于增强采油方法的添加剂。
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公开(公告)号：US4624135A
公开(公告)日：1986-11-25
申请号：US681616
申请日：1984-12-14
CPC分类号： F02M65/005
摘要： A fuel injection nozzle for supplying fuel to an internal combustion engine includes a fuel pressure actuated valve member which moves into a chamber when it is lifted from its seating. The displacement of fuel in the chamber is served by a spring biased plunger which forms part of an electrical switch.
摘要翻译： 用于向内燃机供给燃料的燃料喷射喷嘴包括燃料压力致动阀构件，其在从其座椅抬起时移动到室中。 燃料在腔室中的位移由构成电气开关的一部分的弹簧偏压柱塞来驱动。
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公开(公告)号：US20140152201A1
公开(公告)日：2014-06-05
申请号：US14234778
申请日：2011-07-26
CPC分类号： H02P3/14 , B64C9/323 , B64C13/50 , F03D7/0252 , F05B2260/507 , H02P3/08 , H02P3/12 , H02P3/22 , H02P29/025 , Y02E10/723
摘要： An electric motor system having a power supply, an electric motor connected to the power supply, an object driven by the motor having a range of motion and a substantially neutral position within the range of motion, a power sensor configured to sense power from the power supply, a position sensor configured to sense position of the object in at least a portion of the range of motion, an energy storage, a controller connected to the power supply and the energy storage, wherein the controller is configured to brake the motor as a function of the position sensor, the neutral position and the power sensor.
摘要翻译： 一种具有电源的电动机系统，连接到所述电源的电动机，由所述电动机驱动的物体，所述物体具有在所述运动范围内的运动范围和基本中性的位置;功率传感器，被配置为感测来自所述电力的功率 供应，配置成在运动范围的至少一部分中感测物体的位置的位置传感器，能量存储器，连接到电源和能量存储器的控制器，其中控制器被配置为将电动机制动为 位置传感器的功能，中性位置和功率传感器。
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公开(公告)号：US5564633A
公开(公告)日：1996-10-15
申请号：US399297
申请日：1995-03-03
申请人： Martin P. Hardy , John W. Stevens
发明人： Martin P. Hardy , John W. Stevens
CPC分类号： F02M61/168
摘要： The present invention embodies a fuel injector that takes up limited space when installed on the cylinder head of an associated engine. According to the invention in a fuel injection nozzle of the kind specified the wider portion of the nozzle body is provided with a slot which extends from the step toward the nozzle holder, the portion of the nozzle holder adjecent the nozzle body being provided with a slot. A chip member located in the slot secures the collar to the nozzle holder to retain the nozzle body relative to the nozzle holder.
摘要翻译： 本发明体现了一种燃料喷射器，其在安装在相关联的发动机的气缸盖上时占据有限的空间。 根据本发明，在这种类型的燃料喷射喷嘴中，喷嘴体的较宽部分设置有从台阶朝向喷嘴保持器延伸的槽，喷嘴保持器的与喷嘴主体相邻的部分设置有槽 。 位于槽中的芯片构件将套环固定到喷嘴保持器，以相对于喷嘴保持器保持喷嘴体。
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公开(公告)号：US4591100A
公开(公告)日：1986-05-27
申请号：US639147
申请日：1984-08-09
申请人： David J. Gaskell , John W. Stevens
发明人： David J. Gaskell , John W. Stevens
CPC分类号： F02M61/166 , F02M61/12
摘要： A fuel injection nozzle for supplying fuel to an internal combustion engine comprises an inwardly opening valve member which is urged by fuel under pressure against the action of a spring to allow fuel flow through an outlet opening. The valve member is surrounded by a sleeve member which is also subjected to the fuel pressure and engages the valve member to assist the initial movement thereof. The sleeve is slidable in a bore and the valve member in the sleeve. The working clearance between the wall of the bore and the sleeve and between the sleeve and the valve member are interconnected by radial bores or by making the sleeve from porous material such as sintered material.
摘要翻译： 用于向内燃机供应燃料的燃料喷嘴包括向内打开的阀构件，其在燃料压力下抵抗弹簧的作用而被燃料驱动以允许燃料流过出口。 阀构件被套筒构件包围，该套筒构件也受到燃料压力的作用，并与阀构件接合以辅助其初始移动。 套筒可以在孔中滑动并且套筒中的阀构件可滑动。 孔的壁与套筒之间以及套筒和阀构件之间的工作间隙通过径向孔相互连接，或者通过使多孔材料如烧结材料制成套筒。
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公开(公告)号：US4474249A
公开(公告)日：1984-10-02
申请号：US426437
申请日：1982-09-29
CPC分类号： E21B3/04 , E21B33/085
摘要： An earth boring machine is shown with an improved kelly seal. The machine includes a hydraulic cylinder and a kelly rotatably carried within the cylinder and axially movable with respect to the longitudinal axis of the cylinder. A rotary quill surrounds the kelly for supplying rotational force to the kelly. A packing assembly carried about the kelly within the hydraulic cylinder proximate and end thereof seals hydraulic fluid within the hydraulic cylinder. An improved retaining assembly connects the packing assembly to the rotary quill but allows limited relative rotational movement of the packing assembly with respect to the rotary quill about the longitudinal axis of the kelly. The limited movement provided by the retainer assembly isolates the packing assembly from drive torque which is transferred from the rotary quill to the kelly, thereby reducing the tendency of the packing assembly to drive the kelly.
摘要翻译： 显示了一种具有改进的凯利密封的钻孔机。 该机器包括液压缸和可旋转地承载在气缸内并且可相对于气缸的纵向轴线可轴向运动的凯利。 旋转套管围绕着凯利向凯利提供旋转力。 液压缸内靠近和结束处的凯利的包装组件密封液压缸内的液压流体。 改进的保持组件将包装组件连接到旋转套筒，但允许包装组件相对于旋转套筒围绕凯利的纵向轴线进行有限的相对旋转运动。 由保持器组件提供的有限运动将包装组件与从旋转套筒传送到凯利的驱动扭矩隔离，从而减少包装组件驱动凯利的趋势。
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公开(公告)号：US09614465B2
公开(公告)日：2017-04-04
申请号：US14234778
申请日：2011-07-26
CPC分类号： H02P3/14 , B64C9/323 , B64C13/50 , F03D7/0252 , F05B2260/507 , H02P3/08 , H02P3/12 , H02P3/22 , H02P29/025 , Y02E10/723
摘要： An electric motor system having a power supply, an electric motor connected to the power supply, an object driven by the motor having a range of motion and a substantially neutral position within the range of motion, a power sensor configured to sense power from the power supply, a position sensor configured to sense position of the object in at least a portion of the range of motion, an energy storage, a controller connected to the power supply and the energy storage, wherein the controller is configured to brake the motor as a function of the position sensor, the neutral position and the power sensor.
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公开(公告)号：US5165607A
公开(公告)日：1992-11-24
申请号：US704279
申请日：1991-05-22
申请人： John W. Stevens
发明人： John W. Stevens
IPC分类号： F02M45/08
CPC分类号： F02M45/083
摘要： A fuel injection nozzle of the two stage lift type has a nozzle body containing the valve member of the nozzle and a holder which are spaced apart by a distance piece. A first spring acts on the valve member and a second spring is operative on the valve member after the latter has moved a predetermined distance away from the valve seating. The second spring is engaged by a spring abutment which in the closed position of the valve member engages the adjacent face of the distance piece and the end of the valve member lies flush with the valve body. A push piece is interposed between the valve member and the spring abutment and the extent of movement of the valve member before the second spring is brought into operation is determined by maching the push piece and/or the distance piece.
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公开(公告)号：US5110054A
公开(公告)日：1992-05-05
申请号：US610839
申请日：1990-11-05
申请人： John W. Stevens
发明人： John W. Stevens
CPC分类号： F02M61/163 , F02M55/02 , F02M61/12
摘要： A fuel injector for supplying fuel to an engine has an elongated body in which is defined a bore at one end of which is formed a seating. Located with clearance within the bore is a fuel pressure actuated elongated valve member which at one end is shaped for co-operation with the seating. At its other end the valve member is guided for movement by a guide bush which is able to move radially to a limited extent in the body. Between the guide bush and the seating the valve member has an enlargement which co-operates with the wall of the bore to ensure that the valve member remains concentric with the seating as it moves away from the seating. The guide bush is conveniently formed by an outer bush and an inner bush with the inner bush able to move axially relative to the outer bush. The fuel pressure at the inlet of the injector acts on the inner bush to assist the initial movement of the valve member away from the seating.
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