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 |
|---|---|---|---|---|---|---|
| 81 | Actuation system with fluid transmission for interaction control and high force haptics | US11349547 | 2006-02-07 | US07284374B2 | 2007-10-23 | Stephen P. 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. | ||||||
| 82 | Impedance shaping element for a control system | US11349059 | 2006-02-07 | US20060180225A1 | 2006-08-17 | Stephen Buerger; Neville Hogan |
| An impedance shaping element (or more simply, an impedance shaper) physically alters or shapes the mechanical impedance of a drive system as it appears from an interface and facilitates use of feedback control to improve performance by altering or shaping a dynamic coupling between an interface and a control system. For example, the impedance shaper can be used to adjust a coupling value from a first value to a second different value. In one embodiment, an impedance shaper controls the compliance, damping and inertia characteristics of fluid within a fluid path. | ||||||
| 83 | Actuators with diaphragm and methods of operating same | US11104670 | 2005-04-13 | US20060146096A1 | 2006-07-06 | David Wright; James Vogeley; Edward Tanner |
| Actuator assemblies comprise an actuator element and two piezoelectric assemblies, with the two piezoelectric assemblies being configured and arranged for controlling movement of the actuator element. In some example implementations, the first piezoelectric assembly and the second piezoelectric assembly are constructed and arranged so that a temperature dependency of the first piezoelectric assembly is cancelled by the temperature dependency of the second piezoelectric assembly. In a first example embodiment, a first piezoelectric assembly comprises a first or main piezoelectric diaphragm connected to the actuator element for displacing the actuator element in response to displacement of the first piezoelectric diaphragm. The first piezoelectric diaphragm is mounted to a movable carriage. A second piezoelectric diaphragm, which comprises the second piezoelectric assembly, is connected to the carriage for displacing the carriage in response to displacement of the second piezoelectric diaphragm. A driver applies electrical signals to the first piezoelectric diaphragm and the second piezoelectric diaphragm for causing the first piezoelectric diaphragm and the second piezoelectric diaphragm to displace in the same direction. In a second example embodiment, the actuator element is at least partially situated in a housing wherein the actuator element is capable of reciprocating movement. Within the housing the actuator element at least partially defines a first variable fluidic chamber and a second variable fluidic chamber. The first piezoelectric assembly comprises a first variable reservoir connected to the first variable fluidic chamber; the second piezoelectric assembly comprises a second variable reservoir connected to the second variable fluidic chamber. A first working fluid occupies the first variable reservoir and the first variable fluidic chamber; a second working fluid occupies the second variable reservoir and the second variable fluidic chamber. A driver applies signals to the piezoelectric material comprising the first variable reservoir and the second variable reservoir for causing the first variable reservoir to contract and the second variable reservoir to expand during an extension movement of the actuator element, and for causing the first variable reservoir to expand and the second variable reservoir to contract during a withdrawal movement of the actuator element. | ||||||
| 84 | Hydraulic system | US10514400 | 2003-05-13 | US20050217265A1 | 2005-10-06 | Udo Popp; Roland Welter; Matthias Zink; Rudolf Hoenemann; Markus Heitbaum; Urban Panther; Jan Grabenstaetter |
| A hydraulic system, especially for motor vehicles includes a master cylinder, a slave cylinder and a pressure medium line connected thereto. The invention provides a hydraulic system which is simple or economical to produce by virtue of the fact that the hydraulic system includes at least one hydraulic plug-type connection with a plug connector and a socket contact and the plug connector includes an abutment and a sealing element which are made of different materials and which are connected together in a material fit. | ||||||
| 85 | Hydraulic system | US10775788 | 2004-02-10 | US20040187493A1 | 2004-09-30 | 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. | ||||||
| 86 | Drive device | US10270041 | 2002-10-11 | US20030131595A1 | 2003-07-17 | Yukihisa Takeuchi; Nobuo Takahashi; Yuki Bessho |
| A drive device which does not cause breakage of a pump chamber or a seal due to thermal expansion of operation fluid is provided. A drive device 10 includes ceramic pumps 18a and 18b, which alternately pressurize and depressurize operation fluid 100 within a fluid chamber 13a on opposite sides of a movable body 110, to thereby move the movable body 110 within the flow chamber 13a. The flow chamber 13a is connected via micro flow passages 16a1 and 16b1 to an internal-pressure buffering chamber 15a, which accommodates a compressible gas. When the pressure of the operation fluid 100 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 15a, and the movable body 110 moves without fail. When the pressure of the operation fluid 100 increases slowly due to expansion of the operation fluid 100, the micro flow passages exhibit a low passage resistance, so that the operation fluid 100 is led to the internal-pressure buffering chamber 15a, and the pressure increase of the operation fluid 100 is suppressed. | ||||||
| 87 | Pneumatic jack | US10167977 | 2002-06-12 | US06585231B1 | 2003-07-01 | Anthony R. Fratoni, Jr. |
| A pneumatic jack energized from a container having a pressurized gas therein for rapidly and effortlessly lifting an object such as a motor vehicle including an automobile, a van, and a truck for one purpose of changing a tire that has gone flat is disclosed. The pneumatic jack has a housing with a piston slideably disposed in a chamber therein cooperating with a lifting element, a hose connected between the housing and the container, a gas fill valve and a throttle valve for controlling the pressure to the piston for raising and for maintaining the lifted object in an elevated position and a handle pivotally connected to the housing for manipulating the pneumatic jack for placement under the motor vehicle. | ||||||
| 88 | Hydraulic system | US09796091 | 2001-02-28 | US06546727B2 | 2003-04-15 | Marcus Böckling; Thomas Rammhofer; Joachim Pfeiffer; Jan Grabenstätter |
| An hydraulic system that includes a master cylinder, a slave cylinder, a fluid conduit extending between the cylinders, and a pressure relief valve within the conduit between the cylinders. The pressure relief valve includes at least one port that is closed by an elastic member that overlies the port and that opens when fluid pressure acting through the port exceeds a predetermined level to cause the elastic member to open the port. | ||||||
| 89 | Hydraulic actuating system with electric control | US10069408 | 2002-02-26 | US20020121087A1 | 2002-09-05 | Dominique Alain Van Den Bossche; Jean-Marc Francois Michel Ortega; Christophe Lionel Rene Casse |
| The invention concerns a hydraulic circuit (17) and a control valve (18) dimensioned to be capable of providing the greater part the control surface (3) actuating, which requires less power than the system maximum performances Moreover, a bi-directional hydraulic pump (23), driven by an electric motor (24), can supply backup power which added to said circuit (17) power can ensure said maximum performances. | ||||||
| 90 | Low power miniature hydraulic actuator | US09949778 | 2001-09-10 | US20020050354A1 | 2002-05-02 | 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. | ||||||
| 91 | Hydraulic system | US09796091 | 2001-02-28 | US20010025489A1 | 2001-10-04 | Marcus Bockling; Thomas Rammhofer; Joachim Pfeiffer; Jan Grabenstatter |
| An hydraulic system that includes a master cylinder, a slave cylinder, a fluid conduit extending between the cylinders, and a pressure relief valve within the conduit between the cylinders. The pressure relief valve includes at least one port that is closed by an elastic member that overlies the port and that opens when fluid pressure acting through the port exceeds a predetermined level to cause the elastic member to open the port. | ||||||
| 92 | Press driven tool actuator module | US09325090 | 1999-06-03 | US06295813B1 | 2001-10-02 | Sven Stenquist |
| For a hydraulically actuated device a hydraulic power cylinder with an actuator slidably received for reciprocation within the cylinder and a piston slidably received for reciprocation within a sleeve of the actuator and defining a gas chamber on one side of the piston and a hydraulic fluid chamber on the other side of the piston so that the maximum pressure in the hydraulic fluid chamber is limited as a function of the force of compressed gas in the gas chamber acting on the piston. In this way, the maximum system pressure is a function of and substantially corresponds to the pressure of the compressed gas within the gas chamber and acting on the piston. Desirably, the pressure of the compressed gas in the gas chamber can be readily changed to change the maximum hydraulic fluid pressure. | ||||||
| 93 | Pressure reduction valve | US875088 | 1997-11-05 | US5850844A | 1998-12-22 | Bj.o slashed.rn Scholz Iversen |
| A pressure reduction valve for reducing the pressure in double-acting, closed hydraulic systems when they are not attended. The valve comprises a valve housing (1) with a boring (6), whose ends communicate with the respective circuits, and wherein there are provided two slide valves (21, 22), which are attempted to be forced away from each other by a spring device (39). Each slide valve (21, 22) has a seat (28, 29) for a valve body (31, 32) which is influenced by springs (37, 38) which are also arranged to move the slide valves (21, 22) towards each other. Between the valve bodies (31, 32) there extends slidably a rod (40), whose ends can influence the valve bodies, and whose length is adapted to the slide valves (21, 22) possible distances of movement, thus enabling it to bring the valve bodies alternately away from their seats when the slide valves are forced towards each other under the influence of the pressures in the respective hydraulic circuits. | ||||||
| 94 | Hydraulic applications | US364440 | 1982-04-01 | US4502280A | 1985-03-05 | Walter T. McCoy |
| An apparatus that controls movement of an arm through a gaseous or liquid fluid. The apparatus incorporates a plurality of longitudinally extensible hose members that expand and contract their respective lengths responsive to introduction and withdrawal, respectively, of hydraulic fluid thereinto and therefrom. The hose members are interconnected to one another through a plurality of longitudinally spaced, transversely disposed brace members that may serve as lever means so that expansion or contraction of one hose member can effect an opposite response in an opposed member. The brace members may be interconnected by a spine means that coincides with the longitudinal axis of symmetry of the apparatus. A sheath covers the apparatus. The arm has applications in the field of robotics and a special rat tail-like form of the apparatus provides a low drag substitute for conventional aircraft rudder and elevator assemblies. | ||||||
| 95 | Apparatus for lifting flasks and molds | US31489272 | 1972-12-13 | US3855796A | 1974-12-24 | YOUNG L |
| Apparatus, including stripping pins and master actuator therefore, is disclosed for the handling of flasks or molds. The stripping pins and actuator are constructed to insure positive and synchronized displacement of all of the stripping pins, regardless of variations in external loads applied to the individual pins. The actuator utilizes an hydraulic circuit and an optional pneumatic-hydraulic circuit to effect actuation of the stripping pins.
|
||||||
| 96 | Hydromechanical elastomeric force amplifier | US3760588D | 1972-01-03 | US3760588A | 1973-09-25 | KUSTUSCH P |
| This hydromechanical elastomeric force amplifier has a casing containing two elongated preferably cylindrical force input and output chambers connected to one another by ports. Both chambers contain a hydraulic working fluid, such as a hydraulic oil. The force-input chamber has a reciprocable force-input or energizing plunger slidably mounted therein. The force-output chamber contains a reciprocable force-output or load-bearing plunger slidably mounted therein and this preferably is of the same diameter as the force-input plunger. Interposed between a socket in the inner end of the force-output plunger and a corresponding socket in a boss in the opposite cylinder head of the forceoutput chamber is an elongated approximately cylindrical forcetransforming actuator of an elastic deformable material compatible with the working fluid and vice versa, and preferably provided with slide guide bearings. This elastomeric actuator in its relaxed condition is spaced radially away from the side wall or cylinder bore of the force-output chamber, and is so connected to the force-output cylinder head and the force-output or loadbearing plunger that its opposite ends and the adjacent end portions of the plunger and cylinder head are not exposed to contact with the hydraulic working fluid, with the result that only the side surfaces thereof are so exposed and thereby subjected to the action of the hydraulic working fluid in the force-output chamber. In operation, let it be assumed that before operating the forceinput plunger, a sufficiently heavy load is imposed upon the force-output or load-bearing plunger to cause the resulting descent of the force-output plunger and in turn to deform the elastic deformable actuator axially, with a consequent lateral expansion or bulging thereof. Actuation of the force-input plunger now moves hydraulic working fluid under pressure from the force-input chamber through the side wall ports thereof into the force-output chamber, where it acts against only the bulging side walls of the elastic deformable actuator, causing inward yeilding thereof back toward its original relaxed shape, with a resulting reduction in its diameter and with a consequent axial elongation thereof by the rearrangement of the molecules of its elastic deformable material. This elongation produces a consequent outward sliding motion of the force-output or load-bearing plunger, with an amplification of the force applied to the forceinput plunger. Thus, in a test of the actual device, a 40-pound weight placed on top of the force-output or load-bearing plunger has been lifted thereby a certain distance by means of the operator''s finger depressing the force input plunger of the same diameter the same distance. It is not necessary, however, for both plungers to be of the same diameters.
|
||||||
| 97 | Hydraulic brake mechanism | US3739579D | 1971-07-26 | US3739579A | 1973-06-19 | LUTZ R |
| A hydraulic system actuator including a lever and structure defining a fulcrum for the lever and a link attached to the lever for actuating a pressure cylinder. The fulcrum of the lever is shifted relative to the lever in response to changing pressure within the hydraulic system created by rotation of the lever. The movement of the fulcrum increases the mechanical advantage of the lever as it approaches the end of its travel. The actuator has particular adaptability to vehicular brake systems.
|
||||||
| 98 | Temperature compensated hydraulic valve | US3648967D | 1970-11-10 | US3648967A | 1972-03-14 | O'NEILL CORMAC G; SMILEY PARKER C |
| A valve of the type which employs a hydraulic piston for amplifying the motion of an actuator, wherein undesirable effects of thermal expansion of the hydraulic fluid are eliminated. The valve includes an elastically expandable chamber coupled through a narrow passageway to the hydraulic cylinder for receiving fluid therefrom at a slow rate to hold the extra volume of hydraulic fluid caused by thermal expansion, and a check valve for allowing fluid to flow quickly from the chamber back to the cylinder. The narrow passageway from the hydraulic cylinder to the expandable chamber is formed by an appreciable clearance between a plunger that is moved by the hydraulic fluid and a plunger cylinder in which it slides.
|
||||||
| 99 | Mechanically actuated hydraulic control system for pump control | US50985343 | 1943-11-11 | US2437115A | 1948-03-02 | MULLER JOHAN A; TUCKER WARREN R |
| 100 | Hydraulic actuating mechanism | US43658442 | 1942-03-28 | US2344299A | 1944-03-14 | GROVES MARTIN V |
QQ群二维码
意见反馈
意见反馈