子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Valve arrangement for vibration decoupling, which can be connected between a master cylinder and a slave cylinder of a hydraulic force transmission system | US11412638 | 2006-04-27 | US20060243552A1 | 2006-11-02 | Stefan Gebert; Matthias Kopp; Jochen Schneier; Oswald Muller |
| A valve arrangement for vibration decoupling, the valve arrangement comprising a housing, in which two valve bodies are accommodated, a first of which is biased by a spring in a reference direction towards a stop integral with the housing and has a through-path for fluid, whereas the other is biased by a spring in an opposite direction towards a valve seat on the first valve body and lifts away from the latter in the event of a volume flow in the reference direction, so as to open the through-path for fluid. A further through-path for fluid is provided between the first valve body and the housing, wherein a further valve seat is formed on the stop integral with the housing, towards which further valve seat the first valve body is biased by a spring and lifts away from said valve seat in the event of a volume flow in the opposite direction, so as to open the further through-path for fluid. As a result, a valve arrangement of simple and compact design is provided which has low resistance to displacement of the hydraulic fluid and makes it possible to effectively prevent the transmission of vibrations. | ||||||
| 162 | Method for controlling a dynamic system | US11349036 | 2006-02-07 | US20060190093A1 | 2006-08-24 | Stephen Buerger; Neville Hogan |
| A method for providing a controlled force to a dynamic system includes applying a force to a first actuator, transmitting the force from the first actuator to a second actuator through a closed fluid path containing a captured volume of fluid, and providing, via the second actuator, a controlled force to the dynamic system. | ||||||
| 163 | Actuation system with fluid transmission for interaction control and high force haptics | US11349547 | 2006-02-07 | US20060179837A1 | 2006-08-17 | Stephen Buerger; Neville Hogan |
| A fluid transmission system adapted to provide a controlled force to a dynamic system includes a controller, a drive system coupled to the controller and to a path having a captured amount (mass) of fluid contained therein and an interface coupled to the captured fluid path. | ||||||
| 164 | Hydraulic system | US10775788 | 2004-02-10 | US07003951B2 | 2006-02-28 | Thomas Rammhofer; Udo Popp; Matthias Zink |
| In a hydraulic system (1) for motor vehicles in particular, comprising a master cylinder (4), a slave cylinder (5) and a hydraulic medium line (15) connecting the two, the flexibility and hydraulic rigidity are improved by the fact that the hydraulic medium line (15) includes at least two sections (16, 17, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30) having different wall thicknesses. A feeder line or hydraulic medium line with an inert inner material layer and a transfer device with two interconnected pipes running in parallel are also disclosed. | ||||||
| 165 | Hybrid machine with hydraulic drive device | US10275070 | 2001-05-18 | US06962050B2 | 2005-11-08 | Hikosaburo Hiraki; Koichiro Itow; Hiroaki Inoueo |
| A hybrid machine with a hydraulic drive device having hydraulic actuators allowed to operate against and by external loads is provided. To this end, the hybrid machine comprises hydraulic cylinders (7), first hydraulic pumps (P1) connected, with closed circuits, to head side pressure receiving chambers (7S) and bottom side pressure receiving chambers (7L) of the hydraulic cylinders (7), and second hydraulic pumps (P2) connected, with open circuits, to the bottom side pressure receiving chambers (7L) and an external oil chamber (10), wherein the first and second hydraulic pumps (P1, P2) are connected to electric motors (M) so as to be driven. | ||||||
| 166 | Hydraulic and pneumatic operative diaphragm valve | US10466999 | 2002-01-19 | US06845960B2 | 2005-01-25 | Young-Hoon Shin |
| Disclosed is a diaphragm valve. When a chamber is expanded by fluid supply into a pipe-shaped button, a valve stem is slightly moved upward by a rod and a shaft to open an outlet of an orifice. Fluid received in a space between a cap and a diaphragm and having a high pressure is discharged into an outlet-side space, whereby the diaphragm opens a guide conduit. When fluid is discharged from the pipe-shaped button, the diaphragm is moved toward the guide conduit, and the valve stem closes the outlet. The fluid in the inlet-side space has a high pressure, and the fluid in the space between the cap and diaphragm has a low pressure. The high pressure fluid flows toward the low pressure fluid through a pilot hole of the diaphragm. When fluid pressure balance is effected between the spaces, the diaphragm closes the guide conduit. | ||||||
| 167 | Drive device | US10270041 | 2002-10-11 | US06761028B2 | 2004-07-13 | Yukihisa Takeuchi; Nobuo Takahashi; Yuki Bessho |
| A drive device includes ceramic pumps which alternately pressurize and depressurize fluid within a fluid chamber on opposite sides of a movable body, to thereby move the movable body within the flow chamber. The flow chamber is connected via micro flow passages to an internal-pressure buffering chamber, which accommodates a compressible gas. When the pressure of the fluid is increased and decreased at high speed by the ceramic pumps, the micro flow passages exhibit a high passage resistance, so that the pressure within the channel does not escape to the internal-pressure buffering chamber, and the movable body moves freely. When the pressure of the fluid increases slowly due to the expansion of the fluid, the micro flow passages exhibit a low passage resistance, so that the fluid is led to the internal-pressure buffering chamber, and the pressure increase of the fluid is suppressed. | ||||||
| 168 | Method and apparatus for identifying and eliminating vibration symptoms in hydraulic clutch actuators | US10011799 | 2001-12-04 | US06637271B1 | 2003-10-28 | Arlan Vennefron; Jiamu Hu |
| The present invention provides a method and apparatus for identifying and eliminating vibration in a hydraulic clutch actuator. The vibration is identified by using transducers to characterize the vibrational characteristics of a power train of a vehicle. That characterization is used to program a shaker on a test bed to replicate the vibrations on the vehicle in a hydraulic clutch actuator. Different hydraulic dampers may be employed to eliminate the vibration. The preferred apparatus of the present invention includes a two piece hydraulic damper which may be opened as to insert different diaphragms for testing. | ||||||
| 169 | Hbrid machine with hydraulic drive device | US10275070 | 2002-11-01 | US20030097837A1 | 2003-05-29 | Hikosaburo Hiraki; Koichiro Itow; Hiroaki Inoueo |
| A hybrid machine with a hydraulic drive device having hydraulic actuators allowed to operate against and by external loads is provided. To this end, the hybrid machine comprises hydraulic cylinders (7), first hydraulic pumps (P1) connected, with closed circuits, to head side pressure receiving chambers (7S) and bottom side pressure receiving chambers (7L) of the hydraulic cylinders (7), and second hydraulic pumps (P2) connected, with open circuits, to the bottom side pressure receiving chambers (7L) and an external oil chamber (10), wherein the first and second hydraulic pumps (P1, P2) are connected to electric motors (M) so as to be driven. | ||||||
| 170 | Low power miniature hydraulic actuator | US09949778 | 2001-09-10 | US06543544B2 | 2003-04-08 | Roger L. Schultz; Brock W. Watson; Robert K. Michael; James E. Masino |
| Electrohydraulic actuators and associated methods are utilized to control the operation of downhole well tool assemblies, representatively flow control devices. In a described embodiment thereof, each actuator is positioned downhole and comprises a self-contained, closed circuit hydraulic system including an electrically operable double action primary pump drivingly coupled to an associated well tool assembly via a first hydraulic circuit, and an electrically operable switching pump coupled to the first hydraulic circuit via a second hydraulic circuit interposed therein and operative to selectively alter the control flow of hydraulic fluid to the well tool assembly in a manner reversing its operation. To provide for selective, more rapid control of the well tool assembly, a chargeable accumulator is connected to the hydraulic circuitry and is selectively and drivably communicatable with the well tool assembly. | ||||||
| 171 | Throttle device for hydraulic adjustment devices in motor vehicles | US09255675 | 1999-02-23 | US06250201B1 | 2001-06-26 | Olaf Pagels; Angelika Ebert; Boleslaw Tulaczko; Thomas Riess; Wolfgang Grosspietsch; Klaus Krappmann |
| A throttle device for use with a hydraulic adjustment devices that have an input cylinder and an output cylinder and a hydraulic line filled with fluid connecting the output cylinder and the input cylinder, is arranged in the hydraulic line for establishing various throttle resistances to the flow of the fluid in both flow directions through the hydraulic line. The throttle device includes a disk with at least one boring and/or at least one passage channel. The disk moves back and forth, as the fluid flows, in both flow directions, and thereby strikes against a first stop in one direction and against a second stop in the other direction. The throttle device in the form of a disk in the movement space which is a transition from the hydraulic line to the supply line of the cylinder in its diameter, with a stop disk secured in the hydraulic line forming the second stop is economically advantageous. The disk that acts as the valve is distinguished by its low cost. | ||||||
| 172 | Water sports board | US346666 | 1999-07-02 | US6135837A | 2000-10-24 | Sean T. Giles |
| A water sports board for use in supporting a person riding along on the top surface of the water. The elongated buoyant board has an elongated slot in its bottom surface for each of its fins. The fins are removably received in the elongated slots when the fins are raised up into the interior of the board. A mechanical structure is utilized for reciprocally moving the fins between an upper position inside the slot and a lower position in which a predetermined portion of the fin extends below the bottom surface of the board. A hydraulic system is used for actuating the mechanical means. It utilizes a resilient compressible bladder that is squeezed or released to move the pin between its upper and lower positions. The water sports board may take the form of a bodyboard, surfboard, kneeboard or wakeboard. | ||||||
| 173 | Force-amplifying actuator with capsule-type transmission | US613616 | 1990-11-15 | US5155997A | 1992-10-20 | Kevin D. McGushion |
| A fluid transmission linear actuator having a chamber with a cylindrical boundary and a central axis. An output plunger has a head in the boundary. A neck is formed on the chamber with a passage entering it. An input plunger is axially movable in the neck. The input plunger and the ouput plunger are coaxial. A transmission capsule has a continuous skin forming a first reentrant fold between the output plunger and the boundary, and a second reentrant fold between the neck and the input plunger. A substantially incompressible fluid fills the capsule so that movement of either plunger results in proportional movement of the other plunger. This input plunger can be formed with an exponential surface so that its movement can result in a non-linear response, or in some circumstances can provide a linear output in response to a non-linear input. | ||||||
| 174 | Positioning device | US595090 | 1990-10-10 | US5097928A | 1992-03-24 | Stephan Enders; Gregor Poertzgen |
| According to an illustrative example of the present invention a hydropneumatic positioning device comprises a tubular container. A hollow piston rod is guided through one end of the tubular container. A piston is connected with the piston rod within a cavity of the tubular container. The piston divides the cavity into two working chambers. The working chambers contain a liquid. Adjacent one of the working chambers, namely the working chamber remote from the piston rod, a compensating chamber is provided. This compensating chamber contains a pressurized gas and is separated from the adjacent working chamber by a floating separating wall. A flow passage extends through the piston between the two working chambers. A valve is allocated to the flow passage. The valve can be opened by an actuating rod extending through an axial bore of the hollow piston rod. The actuating rod extends beyond an outer end of the piston rod. An actuating signal transformer is fastened to the outer end of the piston rod. The signal transformer is constructed as a hydraulic press with a liquid chamber, an input piston, and an output piston. The output piston acts onto the outer end of the actuating rod and the input piston can be actuated manually. | ||||||
| 175 | Hydraulic muscle pump | US531529 | 1990-06-01 | US5014515A | 1991-05-14 | Allan I. Krauter |
| This invention comprises four hydraulic muscle pumps connected to four hydraulic dynamic muscles in hermetically sealed pairs to transfer tensive forces from a local to a remote location for use in actuating the articulation section of a borescope or endoscope. | ||||||
| 176 | Shipping and installation restraining strap for slave cylinder | US709084 | 1985-03-07 | US4665802A | 1987-05-19 | David C. Barker; David L. Wrobleski; Richard A. Nix; Keith V. Leigh-Monstevens |
| Improvement in a hydraulic control apparatus for actuating a remotely located mechanism having a shipping and installation restraining strap for an actuator having a housing and a linearly moveable output member projecting from the front end of the housing, the strap being non-elastic and rupturable and having a part thereof engageable with the free end of the output member and another part projecting rearwardly toward the rear end of the housing, the improvement comprising an elastic anchor arrangement for the restraining strap to allow full extension thereof without rupture thereof, a stop and positioning arrangement for the elastic anchor arrangement which predetermines the retracted position in which the output member is yieldably held, and an override arrangement to selectively debar functioning of the elastic anchor arrangement whenever it is intended to rupture the restraining strap. | ||||||
| 177 | Valve system with hydraulic power transmission | US883843 | 1986-07-09 | US4657223A | 1987-04-14 | Nils E. Lindgren |
| A valve system for gas or liquid, comprising a hydraulic power transmission (19) where the pressure of hydraulic fluid is controlled by fluid pressure actuated members (15) and the changes of the fluid pressure actuate operative members (5, 7, 10) of the valve system, where the fluid pressure actuated members and the operative members comprise a tubular expandable bellows (10, 14, 25) with one gable (21) closed and the other (22) connected via tubes (11, 23) or similar to other expandable bellows (10, 14, 25) in the valve system and the thus arisen closed space in filled with hydraulic fluid (24), and that the expandable bellows (10) in the operative member stand in connection with a valve body (5) in a valve tube (1) and that the fluid pressure actuated members (15) is placed outside the valve tube (1). The valve body (5) is movable in the longitudinal direction of the valve tube (1) and in close contact with a seat (3) when the valve system is closed. | ||||||
| 178 | Liquid pressure apparatus | US911477 | 1978-06-01 | US4407125A | 1983-10-04 | David Parsons |
| Friction clutch release apparatus for a motor vehicle comprises a driver-operable master cylinder, a slave cylinder and a conduit which connects the master outlet to the slave cylinder inlet. A liquid reservoir communicates with the bore of the master cylinder between the piston and the outlet when the piston is retracted and has a vent port. The apparatus is assembled, filled with liquid and bled before being installed on the motor vehicle. The vent port may be closed temporarily for convenience of transport and storage after the apparatus is bled, for example by use of a suitable removable closure device which would be removed after installation of the apparatus on the motor vehicle, or may include a movable wall within the reservoir chamber by which liquid within the chamber is separated from that part of the chamber with which the vent port communicates. The vent port may be closed temporarily by a strip of adhesive tape, a bung or other suitable closure device which can be removed readily, or by a puncturable membrane. The movable wall may be a bellows. | ||||||
| 179 | Liquid cable | US916869 | 1978-06-19 | US4372118A | 1983-02-08 | Herman J. Andresen |
| A liquid cable transfer device is provided for transmitting input forces and/or displacements to corresponding output forces and/or displacements. The transfer device includes a section of tubing adapted to accommodate liquid under pressure, and terminal units attached to opposite ends of the tubing. Each unit includes a piston and a biasing element acting against the piston whereby the pistons of both units coact to maintain a certain minimum liquid pressure within the tubing. The piston displacement stroke within one terminal unit caused by either a pull or push input force being applied thereto is transmitted to the piston within the second terminal unit whereby the latter piston is displaced from its initial equilibrium position a predetermined amount. | ||||||
| 180 | Power device | US65508 | 1979-08-10 | US4255930A | 1981-03-17 | Adam J. Natalie |
| A closed circuit power system is disclosed herein having a hydraulic power device incorporated therein which includes an input piston and cylinder assemblage and an output piston and cylinder assemblage connected together by a fluid conduit so as to operate in unison. The input assemblage includes a piston moved by an input ram so as to apply a fluid pressure via the conduit to the output assemblage. The output assemblage includes a pair of pistons operating in unison in separate chambers in response to the applied fluid pressure for moving an output shaft. The pair of pistons include pressure faces against which the fluid pressure is applied which are of equal area but different shape. A selected piston of the output assemblage includes conical forward and rearward faces with a corresponding or matching concave recess in the rear cylinder wall. | ||||||
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