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公开(公告)号：US20160341192A1
公开(公告)日：2016-11-24
申请号：US15112591
申请日：2014-02-07
申请人： JEMTAB SYSTEMS AB
发明人： Ulf JANSSON
CPC分类号： F04B49/10 , F01B11/007 , F01B11/04 , F04B9/12 , F04B9/125 , F04B19/22 , F04B2203/10
摘要： An air-driven hydraulic pump, comprising an air motor, and an oil pump, which is operatively connected with the air motor, wherein the air motor includes a cylinder element in which an air piston is arranged movable in a reciprocating manner along a centre axis. The air piston is connected with an oil piston of the oil pump for transmitting the reciprocating movement of the air piston to the oil piston. The air piston separates a first cylinder chamber from a second cylinder chamber within the cylinder element. A control valve element is arranged to control the application of pressurized air from a source of pressurized air to the cylinder element. At least one pressure control valve is arranged in the air motor, allowing an air flow from one of the cylinder chambers to the other cylinder chamber when the pressure difference between the two cylinder chambers exceeds a predetermined value.
摘要翻译： 一种空气驱动液压泵，包括气动马达和与所述气动马达可操作地连接的油泵，其中，所述气动马达包括气缸元件，气缸活塞可沿其中心轴线往复运动地布置 。 空气活塞与油泵的油活塞连接，用于传递空气活塞往油活塞的往复运动。 空气活塞将第一气缸室与气缸元件内的第二气缸室分离。 控制阀元件被布置成控制从加压空气源到气缸元件的加压空气的应用。 至少一个压力控制阀布置在气动马达中，当两个气缸室之间的压力差超过预定值时，允许空气从气缸室之一流到另一气缸室。
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公开(公告)号：US20130333368A1
公开(公告)日：2013-12-19
申请号：US13920724
申请日：2013-06-18
IPC分类号： F01B11/04
CPC分类号： F01B11/04 , A61H1/0237 , A61H1/0266 , A61H2201/12 , A61H2201/164 , A61H2201/165 , F02B71/045
摘要： The invention herein described consists of a single-cylinder free-piston engine system comprising a combustion cylinder, a compression cylinder, a seal between the two cylinders and a piston assembly, capable of being produced in a miniature scale (e.g., less than 10 cubic centimeters volume). The combustion cylinder consists of a holding chamber wherein fuel enters through a fuel inlet port before combustion, a combustion chamber wherein combustion occurs according to an HCCI process, after which the excess fuel and exhaust leaves the engine system through a port for exhaust, and a port extending from the holding chamber to the combustion chamber. The compression cylinder comprises a compression chamber wherein a compressible a compressible fluid enters through an inlet port, is compressed by the single-cylinder engine system, and the compressed fluid exits through an outlet port, and a rebound chamber wherein energy from the combustion process is conserved by a rebound element.
摘要翻译： 本文描述的本发明包括单缸自由活塞发动机系统，其包括燃烧气缸，压缩气缸，两个气缸之间的密封件和活塞组件，其能够以小尺度（例如，小于10立方厘米 厘米体积）。 燃烧筒包括一个保持室，其中燃料在燃烧之前通过燃料入口进入燃烧室，其中根据HCCI过程发生燃烧的燃烧室，之后多余的燃料和废气通过排气口离开发动机系统， 端口从保持室延伸到燃烧室。 压缩缸包括压缩室，其中可压缩的可压缩流体通过入口进入，由单缸发动机系统压缩，压缩流体通过出口排出，并且回弹室，其中来自燃烧过程的能量为 由反弹元素保存。
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公开(公告)号：US4172411A
公开(公告)日：1979-10-30
申请号：US803989
申请日：1977-06-06
申请人： Makoto Matsuda , Takeo Watanabe
发明人： Makoto Matsuda , Takeo Watanabe
摘要： A hydraulic hammer wherein the reciprocal motion of a drill-striking piston is operated by means of a spool valve for switching hydraulic pressure to a double-acting cylinder depending upon the position of the piston. The hydraulic hammer further includes a self starter means which assures activation of the hammer whenever hydraulic pressure is applied to the hydraulic hammer and a means for compensating for variations in boring conditions such that energy is efficiently delivered by the drill striking piston.
摘要翻译： 一种液压锤，其中钻凿活塞的往复运动通过滑阀操作，用于根据活塞的位置将液压切换到双作用气缸。 液压锤进一步包括一个自启动器装置，当液压施加到液压锤时确保锤的激活，以及用于补偿钻孔条件变化的装置，使得能量被钻孔活塞有效地输送。
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公开(公告)号：US3841797A
公开(公告)日：1974-10-15
申请号：US30545372
申请日：1972-11-10
申请人： FITZGERALD W
发明人： FITZGERALD W
IPC分类号： F02B71/00 , F01B7/02 , F01B11/04 , F01B23/08 , F02B71/04 , F02B75/04 , F03C2/08 , F04B11/00 , F04B17/05 , F04B49/16 , F04B53/10 , F04C14/06 , F04C14/24 , F16H39/08 , F04B17/00
CPC分类号： F04C14/24 , F02B71/045 , F02B75/04 , F03C2/08 , F04B11/0016 , F04B17/05 , F04B49/16 , F04B53/10 , F04B53/1032 , F04C14/06
摘要： A free piston engine, or an opposed free piston engine, in which the power output is derived as a flow of pressurized hydraulic fluid. The engine piston, or each engine piston, coacts with a hydraulic pump which delivers hydraulic fluid into a constant displacement accumulator. The constant displacement accumulator is charged to a predetermined level on each power stroke of the engine piston, to store energy for effecting the recompression stroke. Pressurized fluid for driving a load motor is delivered in accordance with the opening of a pressure-responsive one-way valve, upon charging of the accumulator to its maximum level, so that the energy available for the recompression stroke of the piston is independent of load. In the case of an opposed free piston engine, a closed loop control system is provided for maintaining the engine pistons in synchronism.
摘要翻译： 自由活塞发动机或相对的自由活塞发动机，其中功率输出被导出为加压液压流体的流动。 发动机活塞或每个发动机活塞与液压泵共同作用，液压泵将液压流体输送到恒定位移的蓄能器中。 恒定位移蓄能器在发动机活塞的每个动力冲程上被充电到预定水平，以存储用于实现再压缩冲程的能量。 用于驱动负载电动机的加压流体在蓄能器充电到其最大水平时根据压力响应单向阀的打开被输送，使得可用于活塞的再压缩行程的能量与负载无关 。 在相对的自由活塞式发动机的情况下，提供闭环控制系统以保持发动机活塞同步。
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5.发明授权Installations comprising several free piston autogenerators supplying a receiver with driving gases 失效包括几个自由活塞自动发电机的装置，为接收器提供驱动气体
公开(公告)号：US3410307A
公开(公告)日：1968-11-12
申请号：US46266465
申请日：1965-06-09
CPC分类号： F01B11/04 , F02B71/04 , F02B71/06 , F02M21/00 , F02M2700/12 , Y10T137/86501 , Y10T137/87788
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公开(公告)号：US2334403A
公开(公告)日：1943-11-16
申请号：US37222740
申请日：1940-12-30
发明人： FORSS FRITHIOF P
CPC分类号： F01B11/04 , B25D9/14 , F01L25/063
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7.发明授权公开(公告)号：US11642767B2
公开(公告)日：2023-05-09
申请号：US17133916
申请日：2020-12-24
发明人： Chinbay Q. Fan , Patrick Talano , James Haberstroh
摘要： Various embodiments of the present disclosure provide a combustion-powered fastener-driving tool including multiple combustion chambers and an exhaust gas recirculation system.
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公开(公告)号：US09638092B2
公开(公告)日：2017-05-02
申请号：US14311227
申请日：2014-06-20
申请人： Joseph S. Adams
发明人： Joseph S. Adams
CPC分类号： F02B19/02 , F01B11/04 , F02B63/02 , Y02T10/125
摘要： A combustion-powered tool comprises a primary combustion chamber, a secondary combustion chamber, and a working piston that is in fluidic connection with the secondary combustion chamber so as to be exposed to the pressures developed within the secondary combustion chamber, when combustion takes place within the secondary combustion chamber, such that the working piston can be driven through its working or power stroke. A flexible silicone rubber plate-type control check valve is interposed between the primary combustion chamber and the secondary combustion chamber so as to control the flow of combustion products from the primary combustion chamber into the secondary combustion chamber and yet prevent the flow of combustion products from the secondary combustion chamber back into the primary combustion chamber, when combustion occurs within the secondary combustion chamber, such that the pressures developed within the secondary combustion chamber, as a result of the combustion of the air/fuel mixture within the secondary combustion chamber, can in fact act upon the working piston so as to drive the same through its working or power stroke.
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公开(公告)号：US6095192A
公开(公告)日：2000-08-01
申请号：US238444
申请日：1999-01-28
IPC分类号： F01B11/04 , F01B3/02 , F04B1/12 , F04B1/14 , F04B1/18 , F04B53/10 , F16K3/24 , F16K3/26 , F16K11/07 , F16K31/524 , F16K11/14
CPC分类号： F04B1/122 , F04B1/14 , F04B1/141 , F16K3/26 , F16K31/52483 , Y10T137/86445 , Y10T137/86694 , Y10T137/86702 , Y10T137/86791 , Y10T137/86799 , Y10T137/86879
摘要： A spool valve is provided with a stem portion that defines a fluid passageway formed by either (a) a single central support having a non-cylindrical curved surface shaped hydrodynamically, or (b) only a pair of sidewalls with, preferably, interior surfaces that are also shaped hydrodynamically. These stem passageways, which are designed to facilitate the flow of high-speed/high-pressure fluids controlled by the valve, are maintained in a predetermined orientation relative to the ports of the valve cylinders by a mechanism preferably including (a) a cam-following roller supported in a tang fixed to each spool and (b) a two-element cam that captures the roller within two of the parallel sides of a cam-track groove formed on the respective interior surfaces of each cam element.
摘要翻译： 滑阀设置有杆部分，其限定由（a）具有流体动力学形状的非圆柱形弯曲表面的单个中心支撑件形成的流体通道，或（b）仅具有优选内表面的一对侧壁， 也是流体力学的形状。 这些杆通道被设计成促进由阀控制的高速/高压流体的流动，通过机构保持在相对于气缸的端口的预定方位，优选地包括（a）凸轮 - 随后的辊支撑在固定到每个卷轴上的柄上，和（b）两个凸轮，其在形成在每个凸轮元件的相应内表面上的凸轮轨道槽的两个平行侧内捕获辊。
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公开(公告)号：US4821813A
公开(公告)日：1989-04-18
申请号：US036410
申请日：1987-03-24
申请人： Gustav Jenne , Dietmar Jenne
发明人： Gustav Jenne , Dietmar Jenne
摘要： A percussion drilling apparatus has a control unit in which a displacement reversing unit is arranged axially adjacent to a piston control unit, with the result that the control edges for the apparatus advance and apparatus return can be arranged in separate control sleeves. This control unit makes it possible to achieve better apparatus characteristics and higher overall efficiency of the apparatus.
摘要翻译： 敲击钻孔装置具有控制单元，其中位移反向单元布置成与活塞控制单元轴向相邻，结果是设备前进的控制边缘和设备返回可以布置在单独的控制套筒中。 该控制单元使得可以实现更好的装置特性和更高的整体效率。
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