| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Electropneumatic tool. | US1908445347 | 1908-07-25 | US979164A | 1910-12-20 | HILLHOUSE JOHN TEN EYCK |
| 22 | REMOTELY RECONFIGURABLE HIGH PRESSURE FLUID PASSIVE CONTROL SYSTEM FOR CONTROLLING BI-DIRECTIONAL PISTON PUMPS AS ACTIVE SOURCES OF HIGH PRESSURE FLUID, AS INACTIVE RIGID STRUCTURAL MEMBERS OR AS ISOLATED FREE MOTION DEVICES | US15804426 | 2017-11-06 | US20180058440A1 | 2018-03-01 | Kenneth A. Knowles, JR.; Robert C. Murtha, JR.; Christina Speight |
| A bi-directional pump system that can be configured for a plurality of operating modes. The bi-directional pump system includes a plurality of bi-directional pumps each having their own valving system that are connected to a common high pressure manifold, a low pressure manifold and a suction manifold. Via the respective valve systems, each pump can be configured into: (1) a single-acting pumping mode; (2) a double-acting pumping mode; (3) an inactive free motion mode; and (4) an inactive rigid mode. One exemplary application of the bi-directional pump system is on an articulated wave energy conversion system that consists of three floating barges: a front barge, a center barge and a rear barge where the front barge and center barge are hingedly connected as are the center barge and the rear barge. A first set of the bi-directional pumps span the first hinge connection and the second set of bi-directional pumps span the second hinge connection. The bi-directional pump system intakes sea water and, using wave energy, outputs a high pressure flow of sea water for water desalination and/or for driving electrical generators. | ||||||
| 23 | REMOTELY RECONFIGURABLE HIGH PRESSURE FLUID PASSIVE CONTROL SYSTEM FOR CONTROLLING BI-DIRECTIONAL PISTON PUMPS AS ACTIVE SOURCES OF HIGH PRESSURE FLUID, AS INACTIVE RIGID STRUCTURAL MEMBERS OR AS ISOLATED FREE MOTION DEVICES | US15412726 | 2017-01-23 | US20170130711A1 | 2017-05-11 | Kenneth A. Knowles, JR.; Robert C. Murtha, JR.; Christina Speight |
| A bi-directional pump system that can be configured for a plurality of operating modes. The bi-directional pump system includes a plurality of bi-directional pumps each having their own valving system that are connected to a common high pressure manifold, a low pressure manifold and a suction manifold. Via the respective valve systems, each pump can be configured into: (1) a single-acting pumping mode; (2) a double-acting pumping mode; (3) an inactive free motion mode; and (4) an inactive rigid mode. One exemplary application of the bi-directional pump system is on an articulated wave energy conversion system that consists of three floating barges: a front barge, a center barge and a rear barge where the front barge and center barge are hingedly connected as are the center barge and the rear barge. A first set of the bi-directional pumps span the first hinge connection and the second set of bi-directional pumps span the second hinge connection. The bi-directional pump system intakes sea water and, using wave energy, outputs a high pressure flow of sea water for water desalination and/or for driving electrical generators. | ||||||
| 24 | WAVE ENERGY CONVERTER | US15217772 | 2016-07-22 | US20170009732A1 | 2017-01-12 | Timothy R. Mundon; Balakrishnan G. Nair; Jennifer Vining |
| A wave energy converter includes a surface float including a non-axisymmetric profile, a reaction plate configured to be submerged below a water surface, and more than one flexible tether, each mechanically coupled to both the surface float and the reaction plate, the reaction plate having a moment of inertia in pitch and roll greater than a moment of inertia in pitch and roll of the surface float. | ||||||
| 25 | Load-compensation device | US13383888 | 2010-07-14 | US09132557B2 | 2015-09-15 | Yasuyuki Yamada; Toshio Morita |
| A load compensation device which can compensate loads on a working arm has a working arm supported by a first pivot-mounting part on a supporting body, an actuator cylinder supported by a second pivot-mounting part above the first pivot mounting part, and a piston rod of the actuator cylinder linked to a third pivot-mounting part of the working arm. A piston rod of a compensation cylinder is linked to a movable frame, and a piston of the compensation cylinder is urged upward by means of a compression coil spring which pushes the movable frame upward. The actuator cylinder and the compensation cylinder are linked by the inside of a conduit, and when the working arm is pivoted, the displacement of the piston of the actuator cylinder urges the piston of the compensation cylinder, a torque which balances the load torque of a load W on the working arm is generated. | ||||||
| 26 | HYDRAULIC VALVE | US14213293 | 2014-03-14 | US20150134081A1 | 2015-05-14 | Richard Geiger; David Kraige; Jeremy Frank; Jacob Loverich; Ben Gilbert Macomber; Adam Arabian |
| A valve includes a case comprising a pin bore, a pin configured to move axially in the pin bore, wherein the pin seals the pin bore, a first channel in communication with the pin bore, a second channel in communication with the pin bore, wherein the second channel comprises a restrictor at a location offset from the first channel, a third channel in communication with the pin bore, wherein the third channel comprises a check valve, and the second channel and third channel are in communication with each other. The valve can be a miniature valve that is used in the control of hydraulic fluid in prosthesis, such as a prosthetic ankle joint. | ||||||
| 27 | Hydraulic drive system | US10121266 | 2002-04-11 | US06814409B2 | 2004-11-09 | Henry Warn Jackson |
| A hydraulic drive and fluid control system for a mechanism having at least two fluid actuated cylinder includes a bi-directional motor/gear pump. A monolithic block manifold has intersecting bores formed therein in which valving and control mechanism for the fluid circuit is mounted. The fluid control system includes a variety of elements for providing smooth action of the cylinders at start, stop, and intermediate operations. These include piston-style accumulators, self-actuating fluid flow rate control valves and cushion valves. | ||||||
| 28 | Pressure loss compensation device of a fluid pressure circuit and cam arrangement incorporating the same | US964696 | 1997-11-06 | US5943860A | 1999-08-31 | Heizaburo Kato |
| A pressure loss compensation device for a fluid pressure circuit automatically compensates a pressure loss of a working fluid pressure as required or regularly, in the fluid pressure circuit. A cylinder device forming the pressure loss compensation device is provided in the intermediate position of piping of the fluid pressure circuit. The cylinder device has an actuation pressure introducing chamber introducing a pneumatic pressure and a fluid pressure generating chamber communicated with the piping via a branch pipe provided with a check valve. A return spring is provided in a piston and a fluid induction pipe communicated with an oil pan is connected to the fluid pressure generating chamber. An excessive pressure introducing port is communicated with a drain port when the piston is shifted toward the fluid pressure generating chamber. The excessive pressure introducing port is connected to the piping via a relief valve. A gap serving as an orifice is provided between the excessive pressure introducing port and the drain port, which gap is adapted to be closed by the piston at the lowered position. | ||||||
| 29 | Apparatus for the hydraulic transmission of mechanical power and for the simultaneous multiplication of the speed of rotation | US861442 | 1986-05-09 | US4781025A | 1988-11-01 | Alfred Christ |
| The apparatus has at least one cam plate driven by a drive shaft in a piston pump or hydraulic pressure generator. The cam plate has a cam track or surface with at least two substantially sinusoidal protrusions and recesses or depressions on its circumference or perimeter. The rotation of this cam plate drives a crankshaft of a hydraulic piston and cylinder drive unit or motor by means of at least one plunger or cam follower or tappet and a piston through at least one transmission pipeline or conduit filled with a hydraulic medium. This transmission pipeline is attached without valves to the cylinder of the piston and is connected by means of an also valveless cylinder with a piston of the hydraulic piston and cylinder drive unit or motor. The cam track or surface is so structured that during uniform rotation of the cam plate of the piston pump or hydraulic pressure generator and the crankshaft of the hydraulic piston and cylinder drive unit or motor, the volume of that part of the system filled with the hydraulic medium, i.e. the total volume including the pump piston displacement, cylinder dead space and the volume of the transmission pipeline or conduit, plus the volume of the motor piston displacement, remains constant over time. | ||||||
| 30 | Hydraulic motion amplifier | US192011 | 1980-09-29 | US4328670A | 1982-05-11 | John R. McLean |
| A hydraulic system for motion amplification is disclosed. The system provides hydraulic fluid on both sides of a pair of hydraulic cylinders, creating a pressurized closed loop which provides precision control during both forward and reverse strokes of each hydraulic piston. | ||||||
| 31 | Hydraulic coupling and speed multiplying mechanism | US715625 | 1976-08-18 | US4112681A | 1978-09-12 | Rafael Tuti Roces |
| This hydraulic coupling and speed multiplying mechanism consists of an annular cylinder block having several rows of radial transmitting cylinders wherein are operatively disposed the corresponding radial pistons. The pistons in each circular row are uniformly spaced apart, while laterally adjacent pistons are angularly off-set relative to each other. Centrally disposed in said annular cylinder block is a cam assembly which actuates the pistons in one row simultaneously and the several rows sequentially. The transmitting cylinders in one row are interconnected and have a common pipeline. Two rows of transmitting cylinders are connected to a receiving cylinder a piston in which actuates a crankshaft to which may be connected any desired rotary device. | ||||||
| 32 | Slicing machine having feed means synchronized with knife rotation | US568472 | 1975-04-16 | US3954035A | 1976-05-04 | Bent Hauberg |
| The invention relates to a slicing machine having a hydraulic feed means, a piston pump synchronized with the rotation of the knife so that for each revolution of the knife a measured amount of fluid is supplied by the pump to the feed means thereby determining the increment of movement and thus, the slice thickness. The stroke length of the piston pump may be varied to change the slice thickness. | ||||||
| 33 | Uniform velocity thruster | US72774858 | 1958-04-10 | US2903849A | 1959-09-15 | FAWCETT CECIL C; STOTT ALBERT M; LAAGER CRESTON F |
| 34 | Fluid pressure system for motivating a reciprocating load | US25197251 | 1951-10-18 | US2766590A | 1956-10-16 | ERWIN ROBERT L; RICHEY CLARENCE B |
| 35 | Hydraulic transmission for reproducing mechanical motions at remote points | US76048147 | 1947-07-11 | US2597050A | 1952-05-20 | MARIE AUDEMAR PIERRE GUILLAUME |
| 36 | Hydraulic operating system for mowing machines | US62503845 | 1945-10-27 | US2569507A | 1951-10-02 | VON SCHLEGELL FREDERICK |
| 37 | Operating mechanism for washing machines and the like | US56643544 | 1944-12-04 | US2479535A | 1949-08-16 | DELOGHIA LOUIS E |
| 38 | Hydraulic variable-speed transmission. | US1913783528 | 1913-08-07 | US1177385A | 1916-03-28 | CONRADSON CONRAD M |
| 39 | Pneumatic or hydraulic transmission of electric power. | US1902122213 | 1902-09-05 | US799064A | 1905-09-12 | KOWSKY HANS |
| 40 | Fluid control system for the chair | JP2002265383 | 2002-09-11 | JP4172974B2 | 2008-10-29 | ワーン ジャクソン ヘンリー |
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