公开(公告)号：US4028995A

公开(公告)日：1977-06-14

申请号：US569531

申请日：1975-04-18

Applicant: Pekka Salmi ,  Pentti Raunio

Inventor： Pekka Salmi ,  Pentti Raunio

IPC: B25D9/12 ,  B25D9/14 ,  E21B1/26 ,  F01L21/00 ,  F01L25/06 ,  F03C1/007 ,  F01B7/18 ,  F01L17/00 ,  F01L25/04

CPC classification number: B25D9/12 ,  F01L21/00 ,  F01L25/06 ,  F03C1/0073

Abstract: An hydraulically operated striking apparatus for driving a rock drill or the like comprises a body having an axial, generally cylindrical, interior space with an inwardly protruding annular member. A cylindrical piston is positioned in the space in sliding contact with the protruding annular member, and the piston has canal means in its outer surface. The body, the annular member and the piston define two annular spaces and an annular distributing valve is slidably disposed within one of the spaces. The two spaces communicate with each other by means of the piston canal when the piston is in a first slidable position, and the protruding annular member prevents communication between the two spaces when the piston is in a second slidable position. The piston is provided with an axially disposed extension which, in combination with an outlet means, serves to permit a third, annular axial space to communicate with either an inlet means or an outlet means at all times.

Abstract translation: 用于驱动凿岩机等的液压操作打击装置包括具有轴向，大致圆柱形的内部空间的主体，其具有向内突出的环形构件。 圆柱形活塞定位在与突出的环形构件滑动接触的空间中，并且活塞在其外表面具有管道装置。 主体，环形构件和活塞限定两个环形空间，并且环形分配阀可滑动地设置在其中一个空间内。 当活塞处于第一可滑动位置时，两个空间通过活塞管道彼此连通，并且当活塞处于第二可滑动位置时，突出的环形构件防止两个空间之间的连通。 活塞设置有轴向设置的延伸部，其与出口装置组合用于允许第三环形轴向空间始终与入口装置或出口装置连通。

公开(公告)号：US06862973B2

公开(公告)日：2005-03-08

申请号：US10627134

申请日：2003-07-25

Applicant: Jeffrey Rehkemper ,  Charles Hartlaub

Inventor： Jeffrey Rehkemper ,  Charles Hartlaub

IPC: F01B9/02 ,  F01B17/02 ,  F01L21/00 ,  F01L23/00 ,  F01L21/02

CPC classification number: F16J1/12 ,  F01B9/026 ,  F01B17/02 ,  F01L21/00 ,  F01L23/00

Abstract: In one embodiment a pneumatic motor is provided that includes an intake chamber in fluid communication with at least one intake channel. Each intake channel is further in fluid communication with a corresponding cylinder, which receives a piston that cycles upwardly and downwardly to rotate a motor axle. A member is placed in each intake channel to seal the corresponding cylinder from each intake channel when compressed fluid in the intake channel has a higher pressure then pressure in the corresponding cylinder. Each piston includes an actuator extending downwardly from the piston and having a profile that, during a portion of the upward cycle of the piston, causes the actuator to push the member back into each intake channel to allow compressed fluid into each of the corresponding cylinders. Each piston includes an intermediate section that has an annular groove, a seal positioned in the groove that creates a fluid tight seal against the corresponding cylinder during the upward cycle of the piston. Compressed fluid that enters the corresponding cylinder during the upward cycle will push the piston upwardly. Each section further includes exhaust grooves defined thereon such during the downward cycle of the piston the seal is broken allowing compressed fluid in the cylinder to bypass the piston and escape through a vent above each cylinder. This causes the compressed fluid in the intake channel to push the member to re-seal the cylinder. The upward movement of the piston further generates inertia that moves the piston downward to continue the cycle.

Abstract translation: 在一个实施例中，提供了气动马达，其包括与至少一个进气通道流体连通的进气室。 每个进气通道进一步与相应的气缸流体连通，该圆柱体接收向上和向下循环的旋转电动机轴的活塞。 当进气通道中的压缩流体具有较高的压力，然后相应气缸中的压力时，将一个构件放置在每个进气通道中以密封每个进气通道中的相应气缸。 每个活塞包括致动器，该致动器从活塞向下延伸并且具有在活塞的向上循环的一部分期间使致动器将构件推回到每个进气通道中以允许压缩流体进入每个相应气缸的轮廓。 每个活塞包括具有环形凹槽的中间部分，位于凹槽中的密封件，其在活塞向上循环期间产生相对于相应气缸的流体密封。 在向上循环期间进入相应气缸的压缩流体将向上推动活塞。 每个部分还包括限定在其上的排气槽，在活塞的向下循环期间，密封件破裂，允许气缸中的压缩流体绕过活塞并通过每个气缸上方的通风口逸出。 这导致进气通道中的压缩流体推动构件以重新密封气缸。 活塞的向上运动进一步产生向下移动活塞以继续循环的惯性。

公开(公告)号：US5493944A

公开(公告)日：1996-02-27

申请号：US299451

申请日：1994-09-01

Applicant: Charles F. Felkins ,  John C. Hess ,  Robert A. Martin

Inventor： Charles F. Felkins ,  John C. Hess ,  Robert A. Martin

IPC: B06B1/18 ,  F01L21/00

CPC classification number: B06B1/183

Abstract: A true random vibration generator for use in mechanical vibration generation includes a housing, a piston, and a programmer. The housing defines a cylinder closed at an impact end. The piston is slidably disposed in the cylinder and propelled by a pressurized gas. The programmer is freely moveable in the cylinder between the piston and the impact end of the cylinder. As the piston is propelled towards the impact end of the cylinder by the pressurized gas, the piston strikes the programmer causing the programmer to randomly bounce between the impact end of the cylinder and the piston. The bouncing continue until the programmer impacts the housing and the cylinder at substantially the same time. The piston is then propelled back its original position by the pressurized gas and the impact with the housing. The above described piston cycle is repeated and continues to impart vibration energy to the housing.

Abstract translation: 用于机械振动产生的真正的随机振动发生器包括壳体，活塞和编程器。 壳体限定在冲击端封闭的气缸。 活塞可滑动地设置在气缸中并由加压气体推动。 程序员可以在气缸内自由移动，活塞和气缸的冲击端之间。 当活塞通过加压气体朝向气缸的冲击端推进时，活塞撞击编程器，导致程序员在气缸的冲击端和活塞之间随机反弹。 弹跳直到程序员在同一时间内冲击外壳和气缸。 然后，活塞通过加压气体和与壳体的冲击力推回其原始位置。 重复上述活塞循环，并且继续向壳体赋予振动能量。

公开(公告)号：US4513653A

公开(公告)日：1985-04-30

申请号：US496297

申请日：1983-05-13

Applicant: Kurt Varlemann

Inventor： Kurt Varlemann

IPC: F01L21/00 ,  F01L25/04 ,  F01L15/00

CPC classification number: F01L25/04 ,  F01L21/00 ,  Y10T137/2554 ,  Y10T137/86413 ,  Y10T137/86485

Abstract: This invention relates to an automatic hydraulic reversing valve for a double-action working cylinder. The purpose of the invention is to employ valves of this type without the requirement of an expensive servo-control mechanism, but nevertheless having a high operating reliability. The present invention, in avoiding the use of servo-control devices, utilizes a separate thrust piston which urges a control piston into a startup position, at which position the hydraulic medium is directed to the thrust piston end of the control piston, a blocking slide valve also being employed in the system and being mounted in the control piston for connecting the thrust piston end of the control piston to a tank or for blocking the connection to the tank.

Abstract translation: 本发明涉及一种用于双作用工作缸的自动液压换向阀。 本发明的目的是采用这种类型的阀，而不需要昂贵的伺服控制机构，但是具有高的运行可靠性。 本发明在避免使用伺服控制装置的过程中，使用了单独的推力活塞，该推力活塞将控制活塞推动到启动位置，液压介质在该位置被引导到控制活塞的止推活塞端， 阀也被用在系统中并且安装在控制活塞中，用于将控制活塞的推力活塞端连接到罐或用于阻挡与罐的连接。

公开(公告)号：US3892280A

公开(公告)日：1975-07-01

申请号：US46651174

申请日：1974-05-02

Applicant: KLUSHIN NIKOLAI ALEXANDROVICH ,  MASLAKOV PETR AVRAMOVICH ,  KOTOV VLADIMIR PETROVICH

Inventor： KLUSHIN NIKOLAI ALEXANDROVICH ,  MASLAKOV PETR AVRAMOVICH ,  KOTOV VLADIMIR PETROVICH

IPC: B25D17/00 ,  B25D17/24 ,  F01L21/00 ,  B25D9/00

CPC classification number: B25D17/24 ,  F01L21/00

Abstract: A tool comprises a casing accommodating a housing for axial movement therein. There is provided a main piston mounted in the casing for axially moving therewith. The main piston is received in a space in the housing which is in constant communication with a compressed air source. The compressed air pressure in said space results in the development of a force applied to the casing so as to urge it away from the housing. There is also provided a hammer piston moving in the housing. The distinguishing feature of the tool consists in the fact that there is provided, on the hammer piston, an additional piston received in said space. During the operation of the tool the housing and the hammer piston perform, under the action of compressed air, reciprocations in the antiphase relation therebetween so that the changes in the volume of said space caused by the reciprocations of the housing are compensated for by the reciprocations of the additional piston, whereby the pressure fluctuations of the compressed air in the space are reduced, thereby lowering vibration at the casing and handle. The tool may be alternatively made with the main piston mounted in the casing to move together with the housing.

Abstract translation: 工具包括容纳用于在其中轴向移动的壳体的壳体。 设置有安装在壳体中用于与其轴向移动的主活塞。 主活塞被容纳在壳体中与压缩空气源恒定连通的空间中。 所述空间中的压缩空气压力导致施加到壳体的力的发展，以便将其推离壳体。 还提供了在壳体中移动的锤式活塞。 该工具的显着特点在于，在锤式活塞上设置有一个在所述空间中容纳的附加活塞。 在工具操作期间，壳体和锤式活塞在压缩空气的作用下执行其间的反相关的往复运动，使得由壳体的往复运动引起的所述空间的体积变化通过往复运动来补偿 从而降低了空间中的压缩空气的压力波动，从而降低了壳体和手柄处的振动。 该工具也可以由安装在壳体中的主活塞与壳体一起移动而制成。

公开(公告)号：US20050072800A1

公开(公告)日：2005-04-07

申请号：US10935421

申请日：2004-09-08

Applicant: Clyde Smith

Inventor： Clyde Smith

IPC: B67D1/10 ,  F01L21/00 ,  F01L35/04 ,  F03C1/007 ,  F03C1/10 ,  F04B9/08 ,  F04B9/105 ,  F04B9/113 ,  F04B13/00 ,  A61M37/00 ,  B67D5/56

CPC classification number: B67D1/104 ,  B67D1/107 ,  F01L21/00 ,  F01L35/04 ,  F01L2003/25 ,  F04B9/105 ,  F04B9/113 ,  F04B13/00

Abstract: A fluid transfer device includes a housing and a reciprocating piston in the housing. The piston and the housing may be configured to at least partially define at least two variable-volume chambers. An inlet chamber port and an outlet chamber port may be associated with each of the at least two chambers. A valve member may be operatively associated with each inlet chamber port and outlet chamber port to permit or prohibit fluid flow past the respective inlet chamber port and outlet chamber port. The two chambers may be in a state of fluid isolation, such that fluid in one of the chambers does not enter into any other chamber. A valve actuating means may be configured to shift the valve members to permit or prohibit fluid flow past the inlet and outlet chamber ports. A release mechanism may be associated with at least one valve member. The release mechanism may be configured to allow the valve actuating means to shift the valve members to permit or prohibit fluid flow past the inlet or outlet chamber ports. A sub-system in a post-mix beverage dispenser is also disclosed using a fluid powered proportioning pump.

Abstract translation: 流体输送装置包括壳体和壳体中的往复活塞。 活塞和壳体可以构造成至少部分地限定至少两个可变容积的室。 入口室端口和出口室端口可以与至少两个室中的每一个相关联。 阀构件可以与每个入口室端口和出口室端口可操作地相关联，以允许或禁止流体流过相应的入口室端口和出口室端口。 两个室可以处于流体隔离的状态，使得一个室中的流体不会进入任何其它室。 阀致动装置可以构造成使阀构件移位以允许或禁止流体流过入口和出口腔口。 释放机构可以与至少一个阀构件相关联。 释放机构可以被配置为允许阀致动装置移动阀构件以允许或禁止流体流过入口或出口腔口。 混合饮料分配器中的子系统也使用流体动力配比泵公开。

公开(公告)号：US6035637A

公开(公告)日：2000-03-14

申请号：US30067

申请日：1998-02-25

Applicant: William T. Beale ,  William L. Kopko

Inventor： William T. Beale ,  William L. Kopko

IPC: F01L1/00 ,  F01L9/02 ,  F01L21/00 ,  F02B71/00 ,  F02B71/04 ,  F02B75/02 ,  F02B75/04 ,  F02D13/02 ,  F02G1/043

CPC classification number: F02B71/00 ,  F02B71/04 ,  F02B75/04 ,  F02D13/0203 ,  F02D13/0215 ,  F02G1/0435 ,  F02B2075/025 ,  F02B63/041 ,  F02G2244/50 ,  Y02T10/16 ,  Y02T10/166 ,  Y02T10/18

Abstract: This invention is an efficient free-piston internal-combustion engine having an expansion ratio greater than the compression ratio and preferably with gas bearings supporting the piston. The use of gas bearings in combination with high-temperature ceramic materials allows the engine to be nearly adiabatic and with exhaust temperatures in excess of 600.degree. C. These high exhaust temperatures in turn allow the engine to operate as a topping cycle for gas turbines, Stirling engines, steam engines, etc. An improved valving system for flexible control of the engine may include the use of a valve actuator in a piston. In one embodiment, a pair of oppositely disposed combustion chamber passageways extending between the combustion chamber and the earth's atmosphere, each have a combustion-chamber valve for controlling the passage of gas through the passageways. The combustion-chamber valves are essentially simultaneously opened and closed to permit independent variation and control of the compression ratio, expansion ratio, and stroke of the engine. When the valves are opened, the combustion chamber is purged or supercharged with combustion supporting air, and closed to initiate compression. Variable control of the piston positions at which the valves are opened and closed permits the engine to operate at a high efficiency over a broad range of power output loading conditions. In another embodiment the combustion chamber and a gas compressor are combined in the same cylinder.

Abstract translation: 本发明是一种有效的自由活塞内燃机，其膨胀比大于压缩比，优选地具有支撑活塞的气体轴承。 使用气体轴承与高温陶瓷材料相结合可使发动机几乎绝热，排气温度超过600°C。这些高排气温度又可使发动机作为燃气轮机的顶部循环运行， 斯特林发动机，蒸汽发动机等。用于灵活控制发动机的改进的阀门系统可以包括在活塞中使用阀致动器。 在一个实施例中，在燃烧室和地球大气之间延伸的一对相对设置的燃烧室通道各自具有用于控制气体通过通道的燃烧室阀。 燃烧室阀基本上同时打开和关闭，以允许发动机的压缩比，膨胀比和行程的独立变化和控制。 当阀打开时，燃烧室被燃烧支撑空气吹扫或增压，并关闭以开始压缩。 阀门打开和关闭的活塞位置的可变控制允许发动机在广泛的动力输出负载条件下以高效率运行。 在另一个实施例中，燃烧室和气体压缩机组合在相同的气缸中。

公开(公告)号：USRE27244E

公开(公告)日：1971-12-14

申请号：US27244D

申请日：1969-11-26

IPC: B05B12/06 ,  F01L21/00 ,  F04B9/123 ,  F04B9/127

CPC classification number: F01L21/00 ,  B05B12/06 ,  F04B9/123 ,  F04B9/127

Abstract: A DEVICE FOR BUILDING UP LIQUID PRESSURE PULSES COMPRISES A CYLINDER HOUSING A PISTON, AND AT ONE SIDE OF THE PISTON, THE CYLINDER''S FACE IS FILLED WITH COMPRESSED GAS AND SERVES AS A LOW PRESSURE CHAMBER DESIGNED TO ACCUMULATE ENERGY FROM A FORCED STROKE OF THE PISTON IN THE DIRECTION OF THE CHAMBER. THE SPACE AT THE OTHER SIDE OF THE PISTON IS FILLED WITH LIQUID AND SERVES AS A HIGH PRESSURE

CHAMBER. HIGH PRESSURE IN THE CHAMBER IS BUILT UP AS A RESULT OF INPACT OF THE PISTON ON THE LIQUID IN THIS CHAMBER UPON RECIPROCATION OF THE PISTON IN THE CYLINDER, THE PISTON OBTAINING KINETIC ENERGY IN THE COURSE OF ACCELERATION DURING EXPANSION OF THE COMPRESSED GAS.

公开(公告)号：US3380467A

公开(公告)日：1968-04-30

申请号：US51531865

申请日：1965-12-21

Applicant: HALE FIRE PUMP CO

Inventor： DIEHL JR CHARLES H ,  EBERHARDT HARRY A

IPC: A01K7/02 ,  B01F15/04 ,  F01L21/00 ,  F04B9/105 ,  G05D11/00

CPC classification number: A01K7/02 ,  B01F15/0412 ,  F01L21/00 ,  F04B9/105 ,  G05D11/006 ,  Y10T137/2516

公开(公告)号：US08776890B2

公开(公告)日：2014-07-15

申请号：US13612640

申请日：2012-09-12

Applicant: Arin Basmajian ,  Brad Swenson ,  John R. Whitsitt

Inventor： Arin Basmajian ,  Brad Swenson ,  John R. Whitsitt

IPC: E21B34/14 ,  E21B34/10 ,  E21B23/00 ,  G05D11/00 ,  F16K31/12 ,  F16K31/36 ,  F16D31/02 ,  F01L21/00

CPC classification number: E21B23/00 ,  E21B34/10 ,  E21B34/14 ,  Y10T137/2496 ,  Y10T137/7762

Abstract: A tool that is usable in a well and may include an operator, a switch, a resilient device and an indexer. The switch may be configured to selectively communicate a first force to the operator, thereby actuating the tool. The resilient device may exert a second force. The indexer may cycle through a sequence of positions in response to alternating between the second force and a third force. The sequence includes a predetermined position configured to actuate the switch, thereby communicating the first force to the operator to actuate the tool.

Abstract translation: 可用于井中的工具，其可以包括操作者，开关，弹性装置和分度器。 开关可以被配置为选择性地将第一力传递给操作者，从而致动工具。 弹性装置可以施加第二力。 索引器可以响应于第二力和第三力之间的交替而循环通过一系列位置。 该顺序包括被配置为致动开关的预定位置，从而将第一力传递给操作者以致动该工具。