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    • 1. 发明授权
    • Fluid transfer in reciprocating devices
    • 往复式装置中的流体传送
    • US07438027B1
    • 2008-10-21
    • US08477703
    • 1995-06-07
    • Mitja V. Hinderks
    • Mitja V. Hinderks
    • F02B75/32
    • F01L3/22F01B7/18F01B9/06F01L1/026F01L1/18F01L1/185F01L1/46F01L2001/0535F01L2101/02F01L2810/02F02B53/02F02B75/002F02B75/065F02B75/32Y10T74/18024Y10T74/18312
    • The disclosure relates to fluid working devices including reciprocating internal combustion engines and pumps. A number of arrangements for pistons and cylinders of unconventional configuration are described, many intended for use in IC engines operating without cooling. Included are toroidal combustion or working chambers, some with fluid flow through the core of the toroid, pistons reciprocating between pairs of working chambers, fluid processing volumes partly surrounding portions of the cylinder, tensile valve actuation, tensile links between piston and crankshaft, energy absorbing piston—crank links, crankshafts supported on gas bearings, cylinders rotating in housings, injectors having components reciprocate or rotate during fuel delivery. In some embodiments pistons may rotate while reciprocating. High temperature exhaust emissions systems are described, including those containing filamentary material, as are procedures for reducing emissions during cold start by means of valves at reaction volume exit.
    • 本公开涉及包括往复式内燃机和泵的流体工作装置。 描述了用于非常规配置的活塞和气缸的许多布置,其许多用于不起冷却的IC发动机中。 包括环形燃烧或工作室,一些流体流过环形磁芯,活塞在成对的工作室之间往复运动,流体处理体积部分围绕气缸的部分,拉伸阀致动,活塞和曲轴之间的拉伸连接,能量吸收 活塞 - 曲柄连杆,支撑在气体轴承上的曲轴,在壳体中旋转的气缸,具有在燃料输送期间往复运动或旋转的部件的喷射器。 在一些实施例中,活塞可以在往复运动的同时旋转。 描述了高温废气排放系统,包括含有丝状材料的系统,以及通过反应体积出口处的阀门减少冷启动期间的排放的程序。
    • 3. 发明授权
    • Piston in piston variable displacement hydraulic device
    • US11994121B1
    • 2024-05-28
    • US18536668
    • 2023-12-12
    • TONAND INC.
    • Antonio Cannata
    • F04B3/00F01B7/18F01B7/20F04B1/0435F04B25/02F15B11/16F15B15/14F15B15/16F15B15/26
    • F04B3/003F01B7/18F01B7/20F04B1/0435F04B25/02F15B11/16F15B15/1409F15B15/16F15B15/261
    • A variable displacement hydraulic device comprising: a housing having an inlet for receiving hydraulic fluid and an outlet for outputting the hydraulic fluid, the housing having a reciprocation axis; a first cylinder positioned in the housing along the reciprocation axis, the first cylinder having a first input for receiving the hydraulic fluid on a first intake stroke and a first output for ejecting the hydraulic fluid on a first exhaust stroke; a first piston positioned for a first reciprocal motion within the first cylinder, the first piston having a first main end exposed to the hydraulic fluid and a second main end coupled to an actuator, the actuator for driving the second main end when coupled to the actuator for causing the first reciprocal motion to induce a first portion of said outputting of the hydraulic fluid; a second cylinder positioned in the first piston along the reciprocation axis, the second cylinder having a second input for receiving the hydraulic fluid on a second intake stroke and a second output for ejecting the hydraulic fluid on a second exhaust stroke; a second piston positioned for a second reciprocal motion within the second cylinder, the second piston having a first secondary end exposed to the hydraulic fluid and a second secondary end coupled to the actuator, the actuator for driving the second secondary end when coupled to the actuator for causing the second reciprocal motion to induce a second portion of said outputting of the hydraulic fluid; and a locking mechanism for inhibiting the first reciprocal motion of the first piston; wherein when engaged the locking mechanism inhibits the first portion of said outputting of the hydraulic fluid by decoupling the first piston from the actuator while continued operation of the actuator provides the second portion of said outputting of the hydraulic fluid by the second piston.
    • 5. 发明授权
    • Variable-displacement piston-cylinder device
    • 可变排量活塞缸装置
    • US07779627B1
    • 2010-08-24
    • US12366295
    • 2009-02-05
    • James D. Ries
    • James D. Ries
    • F04B23/00F02B75/32
    • F02B75/287F01B7/18
    • A variable-displacement piston-cylinder device may be adapted for providing work output, and/or for pumping or compressing fluids. The piston-cylinder device defines two or more coaxial cylindrical expansion chambers between a piston having two or more coaxial and conjoined piston members, and a correspondingly-shaped cylinder. Substantially any combination of the expansion chambers may be activated or deactivated in order to vary the effective displacement of the piston-cylinder device. The effective displacement of each piston-cylinder may be changed in mid-operation in order to reduce power output and fuel consumption (or pumping or compressing capacity), without introducing vibration. In addition, a control system is provided for managing the effective displacement of each piston-cylinder according to output required, desirable operating parameters, and other parameters that can effect the operation of the device.
    • 可变排量活塞 - 缸装置可以适于提供工作输出和/或用于泵送或压缩流体。 活塞缸装置在具有两个或多个同轴和结合的活塞构件的活塞和相应形状的气缸之间限定两个或更多个同轴圆柱形膨胀室。 为了改变活塞 - 气缸装置的有效位移,基本上可以启动或停用膨胀室的任何组合。 每个活塞缸的有效位移可以在中间操作中改变,以便在不引入振动的情况下减少功率输出和燃料消耗(或泵送或压缩容量)。 此外,提供了一种控制系统,用于根据所需的输出,期望的操作参数以及可影响设备操作的其他参数来管理每个活塞缸的有效位移。
    • 6. 发明授权
    • Internal combustion engine
    • 内燃机
    • US5213067A
    • 1993-05-25
    • US808865
    • 1991-12-19
    • Louis E. Kramer
    • Louis E. Kramer
    • F01B7/14F01L7/12F02B3/06F02B25/08F02B75/04F02B75/28F02D13/02
    • F02D13/0284F01B7/14F01L7/12F02B25/08F02B47/02F02B75/041F02B75/28F02M25/03F01B7/18F02B3/06F02M25/025Y02T10/121Y02T10/18
    • An internal combustion engine is provided having opposed pistons operating in axially spaced relation within common power cylinders. Opposed heads of the pistons define a space within which occurs a cycle of compression, ignition, combustion, and expansion. One piston controls exhaust ports, and the other piston controls air injection and fuel-air charge injection ports. Additional air injection ports, and associated supply passages or tubes, are provided to admit compressed air over the head of the exhaust piston to cool the exhaust piston head and also form a gas flow inhibiting region below the exhaust port, near the end of the power/exhaust stroke. Rotary valves control the in-flow of air and air-fuel charge to charging cylinders. Air injection ports have an optional improved construction to enhance air injection into the power cylinders. Throttle valves controlling flow of air into purge air charging cylinders are provided as an option. Water injection, particularly into the purge air, is a further option. An optional mechanism can be added for changing the phase relationship between the two opposed pistons in a common cylinder, whereby timing of opening of the exhaust port and the auxiliary air injection port can be changed according to changes in engine r.p.m.
    • 提供内燃机,其具有在公共动力缸内以轴向间隔的关系操作的相对的活塞。 活塞的相对的头部限定了一个空间,其中出现压缩,点燃,燃烧和膨胀的循环。 一个活塞控制排气口,另一个活塞控制空气喷射和燃料 - 空气注入口。 提供额外的空气注入口和相关联的供应通道或管,以将压缩空气吸入排气活塞的头部以冷却排气活塞头,并在排气口下方形成靠近电力末端的气流阻止区域 /排气冲程。 旋转阀控制空气和空气燃料进入充气缸。 空气喷射端口具有可选的改进的结构,以增强对动力气缸的空气喷射。 控制空气流入吹扫空气加注缸的节气门作为选项提供。 特别是进入吹扫空气的注水是另一个选择。 可以添加用于改变公共气缸中的两个相对的活塞之间的相位关系的可选机构,由此可以根据发动机转速的变化来改变排气口和辅助空气喷射口的打开定时。
    • 7. 发明申请
    • PISTON TYPE INTERNAL COMBUSTION ENGINE
    • 活塞式内燃机
    • US20150240742A1
    • 2015-08-27
    • US14556278
    • 2014-12-01
    • Nobuya TAKAHARA
    • Nobuya TAKAHARA
    • F02F1/00F02F1/18
    • F02F1/004F01B7/18F02F1/18F05C2251/048Y02T10/125
    • An internal combustion engine includes a cylinder of which the interior is divided into two in the longitudinal direction. The lower chamber serves as a mechanical driving portion in which the piston is reciprocated. The upper chamber serves as a power portion in which combustion gas is drawn in, compressed, burned and exhausted. A cylindrical portion with a lid which moves into the power portion is continuously provided on top of the piston. A gap is defined between the cylindrical portion and the inner peripheral surface of the power portion of the cylinder. The inner peripheral surface of the power portion is defined by a heat shield tube fitted in the cylinder. A heat insulating tube is provided on the outer periphery of the heat shield tube.
    • 一种内燃机,其具有将内部沿长度方向分成两部分的气缸。 下室用作活塞往复运动的机械驱动部分。 上室用作燃烧气体被吸入,压缩,燃烧和排出的动力部分。 具有移动到动力部分中的盖的圆柱形部分连续地设置在活塞的顶部。 在圆筒部分和圆筒的动力部分的内周表面之间限定间隙。 动力部分的内周表面由安装在气缸中的隔热管限定。 在隔热管的外周设有隔热管。
    • 9. 发明授权
    • Cyclic hydraulic actuator
    • 循环液压执行器
    • US5222425A
    • 1993-06-29
    • US817396
    • 1992-01-06
    • Michael R. Davies
    • Michael R. Davies
    • B25D9/14F01B7/18F01B11/00
    • B25D9/14F01B11/00F01B7/18
    • This invention relates to a cyclic hydraulic actuator, and more particularly to an actuator for a rock drill and includes: a housing; at least two chambers in the housing; a fluid passage between a first of the chambers and the outside of the housing for feeding a liquid at supply pressure to the chamber during operation of the actuator; a fluid passage between a second of the chambers and the outside of the housing for exhausting liquid from the second chamber during operation of the actuator; a piston reciprocable on an axis in at least the first and second chambers with the piston including an exposed piston area in each of the two chambers for causing, with the liquid at supply pressure, reciprocation of the piston; an inlet valve for opening and closing the second chamber to liquid at supply pressure in the first chamber; an exhaust valve for opening and closing the exhaust passage; the inlet and exhaust valves, chambers and exposed piston areas being so arranged that during cyclic operation of the actuator, when the inlet valve is closed and the exhaust valve is open, the piston is accelerated in one direction, and when the inlet valve is open and the exhaust valve is closed the piston is accelerated in the opposite direction; means on the piston for opening the inlet valve after closing the exhaust valve, means for closing the inlet valve independently of the exhaust valve, and means biasing the exhaust valve from a position in which it closes the exhaust passage to a position in which the exhaust passage is at least partially open once the inlet valve is closed irrespective of the position of the piston in the remainder of its first direction of acceleration, during the cyclic operation of the actuator.
    • 本发明涉及循环液压致动器,更具体地涉及一种用于凿岩机的致动器,包括:壳体; 壳体中的至少两个腔室; 在所述腔室的第一腔室和所述壳体的外部之间的流体通道,用于在所述致动器的操作期间向所述腔室供给液体; 在第二腔室和壳体外部之间的流体通道,用于在致动器的操作期间从第二腔室排出液体; 活塞在至少第一和第二腔室中的轴线上往复运动,活塞包括两个室中的每一个中的暴露的活塞区域,用于使液体在供给压力下使活塞往复运动; 用于在所述第一室中的供给压力下将所述第二室打开和关闭到液体的入口阀; 用于打开和关闭排气通道的排气阀; 入口和排气阀,室和暴露的活塞区域被布置成使得在致动器的循环操作期间,当入口阀关闭并且排气阀打开时,活塞在一个方向上被加速,并且当入口阀打开时 排气阀关闭,活塞沿相反方向加速; 在关闭排气阀之后活塞用于打开进气阀的装置,用于独立于排气阀关闭进气阀的装置,以及将排气阀从其将排气通道关闭的位置偏置到排气口的位置的装置 在致动器的循环操作期间,入口阀关闭后,通道至少部分地打开,而与活塞在其第一加速方向的剩余部分中的位置无关。