Power generating apparatus of renewable energy type and control method thereof

A power generating apparatus of renewable energy type includes a rotation shaft, a hydraulic pump, a hydraulic motor, a generator and a pitch drive unit. When a fault even occurs, a deviation of a state indicating an operation state from a normal state value is calculated. When the deviation is not less than a first threshold value, the stop control unit performs by means of a hard-wired circuit at least one of switching the hydraulic pump to an idle state, the hydraulic motor to an idle state, and the pitch angle toward a feathering position. When the deviation is less than the first threshold and not less than a second threshold, the stop control unit performs by software control all of switching the hydraulic pump to the idle state, the hydraulic motor to the idle state, and the pitch angle toward the feathering position.

Electro-hydraulic drive system for a work machine

An electro-hydraulic drive system for a work machine which drives an upper rotary body by controlling a flow rate of a hydraulic fluid by a control valve, includes an electro-hydraulic pump including a hydraulic pump driven by an engine, and a first electric motor, and an electro-hydraulic motor including a hydraulic motor rotated by the hydraulic oil supplied from the electro-hydraulic pump, and a second electric motor, and a controller which determines an operating state of the first electric motor and an operating state of the second electric motor based on a load of the electro-hydraulic pump and a load of the electro-hydraulic motor, and is able to perform an efficient operation by using a hydraulic pressure (fluid pressure) and electric power.

Hydrostatic Travel Drive and Method for Controlling the Hydrostatic Travel Drive

A hydrostatic travel drive includes a hydraulic pump for the purpose of supplying pressure medium to a hydraulic motor of the travel drive that can be coupled to an output, which pump can be coupled to a drive machine. The hydraulic pump has an actuating cylinder with at least one cylinder chamber and a swept volume which can be adjusted via the actuating cylinder, and at least one electrically activatable pressure valve via which the cylinder chamber can be charged with an adjustingly active actuating pressure. The travel drive further includes device via which a pressure of the hydraulic pump can be limited by means of influencing the actuating pressure.

Electro hydrostatic actuator

An electro hydrostatic actuator comprising a hydraulic pump driven by an electric motor to supply hydraulic fluid to a hydraulic actuator, the pump comprising an inlet and an outlet for the hydraulic fluid and an active flow path configured therebetween such that, in an active mode of operation when the pump is driven by the electric motor, hydraulic fluid is actively drawn in through the inlet and exhausted out through the outlet. The pump further comprises a bypass flow path configured to open between the inlet and outlet such that, in a damping mode of operation when the pump is not driven by the electric motor, hydraulic fluid is able to pass through the pump along the bypass flow path between the inlet and outlet. The hydraulic pump is a rotary piston pump comprising a pump barrel driven to rotate by a motor shaft.

HYDRAULIC APPARATUS HAVING AN ADDITIONAL THRUST SECTION

The invention relates to a valve assembly () of a radial piston hydraulic apparatus (). Said apparatus includes a cylinder block () insertable onto a shaft () by translation. Said assembly () includes: a valve () in contact with said cylinder block (); a valve train cover (); and a first () and second () chamber that are defined, respectively, by a first () and second () space that are located at the interface between said valve () and said valve train cover (), and are intended for the pressurized fluids that enable the conversion of pressure and/or mechanical stress. Said assembly () includes an additional section () defined by a third space () located at the interface between said valve () and said valve train cover (). Said section () is intended for receiving a pressurized fluid such as to enable the cylinder block (4) to be inserted onto the shaft (2). 2. The distribution assembly according to claim 1 , wherein the additional section is entirely or partly located radially outside the first and second chambers claim 1 , so that the surface of said additional section is greater.3. The distribution assembly according to claim 1 , wherein the supplying of the additional section is accomplished by selection of the lowest pressure between the two pressure relating to the first and second chambers.4. The distribution assembly according to claim 3 , wherein the distribution assembly comprises a low-pressure selector with an open center adapted to carry out the selection of the lowest pressure between the two pressures relating to the first and second chambers.5. The distribution assembly according to claim 1 , wherein the additional section is not radially rectilinear claim 1 , but is typically S or Z-shaped claim 1 , so as to optimize the volume and the sealing.6. A hydraulic device including a casing claim 1 , a cylinder block and a shaft to which the cylinder block is adapted to engage by longitudinal translation claim 1 , characterized in that it further comprises ...

HYDROSTATIC RADIAL PISTON MACHINE AND PISTON FOR A HYDROSTATIC RADIAL PISTON MACHINE

A radial piston machine and a piston for a radial piston machine include pistons that are movable in the radial direction and are guided along a lifting surface of a cam ring by a roller. The roller is hydrostatically supported by a pressure groove in a sliding bearing surface of a roller cage. The geometry of the pressure groove is configured such that both the leakage is reduced and the lateral support is improved by enlarging hydrostatic and hydrodynamic surface sections. 1. A hydrostatic radial piston machine , comprising:a cylinder block defining a plurality of cylinder bores; anda plurality of pistons guided radially displaceably in the respective cylinder bores and configured to delimit a working space in each case with the cylinder bore, the pistons being supported on a cam ring in each case via a roller such that they carry out a stroke in the case of a relative movement between the cam ring and the cylinder block,wherein the roller is mounted hydrostatically such that it is configured to be rotated on a roller cage configured approximately as a cylinder segment, and a hydrostatic pressure groove formed in a plain bearing face, the hydrostatic pressure groove being in pressure medium connection with the respective working space, andwherein the pressure groove is positioned in such a way that a gap which opens during operation of the radial piston machine between the outer circumference of the roller and the plain bearing face does not pass, or passes only insubstantially, in pressure medium connection with the pressure groove.2. The hydrostatic radial piston machine as claimed in claim 1 , wherein the pressure groove is arranged within an angular range of the plain bearing face which extends at most between ±60° in relation to a plane which is defined by a piston axis and a roller axis.3. The hydrostatic radial piston machine as claimed in claim 2 , wherein the pressure groove runs in the circumferential direction of the plain bearing face within an angular ...

Swash plate type liquid-pressure rotating device and method of manufacturing same

A swash plate type liquid-pressure rotating device includes a movement restricting mechanism configured to restrict a movement of a spherical bushing relative to a rotating shaft toward a first side in an axial direction. The movement restricting mechanism is a restricting member such that a portion of the spherical bushing which portion is located at the first side in the axial direction contacts the restricting member. The swash plate type liquid-pressure rotating device further includes: a stopper attached to the rotating shaft; and a gap adjusting member. The gap adjusting member is inserted into a gap G 3 formed between the stopper and the bearing when the spherical bushing, the retainer plate, the shoe, and the swash plate tightly contact one another in the axial direction. The gap adjusting member restricts a movement of the rotating shaft relative to the casing toward the first side in the axial direction.

Hydrostatic Power Unit

A hydrostatic power unit () comprises a variable displacement machine with a continuously variable displacement volume and is operated as a pump and motor and is in a drive connection with an internal combustion engine (). When operated as a pump, the power unit sucks hydraulic fluid out of a tank () and delivers into a delivery side (P), and, when operated as a motor, functions as a hydraulic starter to start the internal combustion engine (). When operated as a motor, the power unit is supplied with hydraulic fluid from a hydraulic accumulator (). The displacement volume of the power unit () is set by a displacement volume control device () actuated by a positioning piston device () supplied with hydraulic fluid from a charging pressure circuit (). The power unit () includes a supplemental positioning piston device () in an operative connection with the displacement volume control device () and which is actuated directly by the pressure present in the hydraulic accumulator (). By means of a connection of the supplemental positioning piston device () with the hydraulic accumulator, the power unit () can be adjusted to increase the displacement volume to start the internal combustion engine (). 1. A hydrostatic power unit , comprising:a variable displacement machine with a continuously variable displacement volume and operable as a pump and motor;an internal combustion engine connected to the variable displacement machine, wherein when operated as a pump, a suction side of the power unit sucks hydraulic fluid out of the tank and delivers into a delivery side, wherein when operated as a motor, the power unit is a hydraulic starter to start the internal combustion engine, and wherein the power unit operated as a motor is supplied with hydraulic fluid from a hydraulic accumulator;a displacement volume control device to set a displacement volume of the power unit;a positioning piston device supplied with hydraulic fluid from a charging pressure circuit; anda ...

HYDRAULIC FUEL PUMP APPARATUS FOR A FUEL DELIVERY CHASSIS, SUITABLE FOR REFUELING AIRCRAFT, AND RELATED DEVICES, SYSTEMS AND METHODS

Embodiments include a modular fuel pump apparatus for an aircraft refueling chassis and related devices, systems and methods. In one exemplary embodiment, a pump module includes a hydraulic motor driven by a hydraulic pump connected to a chassis motor. A chassis engine is operated at a substantially constant RPM, which causes the hydraulic pump to output hydraulic fluid to the pump module at a substantially constant hydraulic pressure. The speed of the hydraulic motor can be varied by a proportional flow control valve disposed between the hydraulic pump and the hydraulic motor, thereby varying the speed of the fuel pump and the flow rate of the fuel. A controller is configured to operate the pressure control valve such that the flow of the fuel is maintained at a predetermined flow rate. 1. A pump module for a fuel delivery chassis , comprising:a proportional flow control valve configured to receive hydraulic fluid at a first hydraulic fluid flow rate from a hydraulic pump driven by a vehicle engine, the proportional flow control valve configured to allow at least a portion of the hydraulic fluid to pass through at a second hydraulic fluid flow rate;a hydraulic motor configured to receive and be driven by the hydraulic fluid passing through the proportional flow control valve at the second hydraulic fluid flow rate, the hydraulic motor configured to rotate at a rotational rate corresponding to the second hydraulic fluid flow rate;a fuel pump configured to be driven by the hydraulic motor, the fuel pump configured to pump fuel from a fuel storage receptacle to at least one fuel delivery hose assembly at a fuel flow rate corresponding to the rotational rate of the hydraulic motor; anda controller configured to control the proportional flow control valve to adjust the second hydraulic fluid flow rate to maintain the fuel flow rate within a predetermined flow rate range.2. The pump module of claim 1 , wherein the at least one fuel delivery hose assembly comprises at ...

Hydraulic motor-pump-arrangement and hydraulic system for a vehicle

An arrangement for selectively making available hydraulic power in separate hydraulic circuits comprises two displacement machines, two free-wheels and a drive unit that is preferably arranged between the displacement machines. The free-wheels block in opposite directions and are coupled to the displacement machines. Consequently, the first displacement machine is driven in a first rotating direction of the drive unit while the second displacement machine is only driven in a second, opposite rotating direction of the drive unit. This makes it possible to realize an intermittent operation for selectively making available additional hydraulic power in separate hydraulic subsystems by choosing the rotating direction accordingly. This arrangement can reduce the weight and the complexity of a hydraulic system.

Method and system for harnessing wind energy using a tethered airfoil

Methods, systems, and techniques for harnessing wind energy use a tethered airfoil and a digital hydraulic pump and motor, which may optionally be a combined pump/motor. During a traction phase, a wind powered airfoil is allowed to extend a tether and a portion of the wind energy harnessed through extension of the tether is stored prior to distributing the wind energy to an electrical service. During a retraction phase, the wind energy that is stored during the traction phase is used to retract the tether. The digital hydraulic pump and motor are mechanically coupled to the tether.

USING GRAVITY AND PIEZOELECTRIC ELEMENTS TO PRODUCE ELECTRIC POWER

A hydroelectric power plant comprising a pipe from a water source in a mountain range which is made to open into a much larger in diameter piston cylinder at a much lower elevation. The piston therein is driven by water pressure to drive a gear train operatively connected to an electric generator on its far end. The piston is made to move slowly under great force, while the generator is made to turn at a much greater velocity, producing electricity. Water pressure may be derived from some municipal water systems. Much less water is expended through the device than by using a turbine, as in U.S. Pat. No. 1,774,603. Instead of a piston, piezoelectric elements may be used with shut-off valves on either side of the elements. By alternating the operation of these valves intense pressure waves may be induced to produce electricity. This obviates the need for turbines and generators for hydroelectric power generation. 1. A hydroelectric power plant comprising:a. a water source at a high elevation,b. a pipe means operatively connected to said water source at a first end and filled with water,c. a faucet means operatively connected to said pipe means second end at a lower elevation,d. a piston means,e. a gear train means arranged to increase the angular velocity of its final element, andf. a generator means, all operatively connected so pressurized water made to enter through said faucet means is made to drive said piston means, said gear train means, and said generator means so electric power is produced.2. The gear train means of wherein a large and small gear means is mounted on a single axle.3. The gear train means of wherein said gear train comprises spur gears.4. The piston means of wherein said piston within a piston is within a cylinder sleeve and sealed with O-rings.5. A hydroelectric power plant comprising:a. a water source at a high elevation,b. a pipe means operatively connected to said water source at a first end and filled with water,c. a chamber operatively ...

HYDRAULIC AUTOMATIC TRANSMISSION BICYCLE

This disclosure generally relates to an automatic bicycle, particularly to a hydraulic automatic transmission bicycle which can automatically and adaptively change gear ratios. More particularly, this disclosure relates to those hydraulic automatic transmission bicycles which use fluid pressure to change such gear ratios, and which include various hydraulic automatic transmissions which may be provided in various configurations and may operate in various methods and sequences to provide automatic and infinitely variable gear ratios. 1. A hydraulic automatic transmission comprising:at least one hydraulic motor;at least one hydraulic pump capable of pressurizing fluid contained therein and capable of discharging said pressurized fluid to said hydraulic motor; andat least one control unit,wherein said hydraulic motor includes a motor driving axis and generates mechanical power for rotating said motor driving axis using said pressurized fluid received form said hydraulic pump, wherein a motor pressure is a pressure of said fluid inside said hydraulic motor, and wherein said hydraulic motor increases or decreases said motor pressure as external mechanical load respectively increases or decreases,wherein said hydraulic pump includes a pump driving axis, defines a pump driving volume, and discharges a pump discharging volume of said pressurized fluid to said hydraulic motor per a rotation of said pump driving axis, while pressurizing said fluid contained in said pump to a pump pressure which is higher than said motor pressure using mechanical energy supplied to said pump, andwherein said hydraulic pump changes said pump discharging volume in response to changes in said mechanical load, whereby a ratio of a first number of rotations of said pump driving axis to a second number of rotation of said motor driving axis automatically changes in response to said mechanical load,wherein said control unit is capable of manipulating said pump driving volume in response to changes in ...

HYDRAULIC ROTARY MACHINE

A hydraulic rotary machine includes a plurality of pistons, a cylinder block accommodating the pistons, a shaft penetrating through the cylinder block, a swash plate making the pistons reciprocate to expand and contract a capacity chamber of the cylinder, a casing accommodating the cylinder block, a front cover closing an opened end of the casing, an extending portion formed in the front cover and extending along the shaft towards the cylinder block, and a first slide bearing provided between the extending portion and the cylinder block. The first slide bearing is fixed to the extending portion or the cylinder block by a pin member. 1. A hydraulic rotary machine comprising:a plurality of pistons;a rotatable cylinder block including a plurality of cylinders for accommodating the pistons;a shaft penetrating through the cylinder block and coupling to the cylinder block;a swash plate configured to cause reciprocation of the piston in accordance with the rotation of the cylinder block so as to expand and contract a capacity chamber of the cylinder;a case member supporting one end of the shaft and accommodating the cylinder block;a cover member through which the other end of the shaft is inserted, the cover member closing an opened end of the case member;an extending portion formed in the cover member, the extending portion extending along the shaft towards the cylinder block; anda first slide bearing provided between the extending portion and the cylinder block, whereinthe first slide bearing is fixed to the extending portion or the cylinder block by a fixing means.2. The hydraulic rotary machine according to claim 1 , whereinthe fixing means comprises a pin member penetrating through the first slide bearing, and a leading end portion of the pin member fits into a hole provided in the extending portion or the cylinder block.3. The hydraulic rotary machine according to claim 1 , whereinthe fixing means comprises a locking screw penetrating through the first slide bearing, ...

HYDRAULIC ROTARY MACHINE

A hydraulic piston pump motor in which water is used as a working fluid includes an axial directional passage opened on an end surface of one end of a shaft that couples to a cylinder block and drilled open along a shaft center of the shaft; a first radial directional passage drilled open along a radial direction of the shaft from the axial directional passage and configured to guide working fluid into a casing; a second radial directional passage drilled open from the axial directional passage along the radial direction of the shaft at a position closer to the one end of the shaft than the first radial directional passage; and an introduction passage communicating a passage, through which the higher pressure working fluid flows, among the supply passage and the discharge passage with the axial directional passage. 1. A hydraulic rotary machine in which water is used as a working fluid , comprising:a plurality of pistons;a cylinder block having a plurality of cylinders which accommodates the pistons and being rotatable;a shaft penetrating through the cylinder block and coupling to the cylinder block;a swash plate configured to reciprocate the piston in accordance with the rotation of the cylinder block so as to expand and contract a capacity chamber of the cylinder;a casing accommodating the cylinder block, the casing supporting one end of the shaft, the other end of the shaft being inserted through the casing;a supply passage provided in the casing and configured to supply the working fluid to the capacity chamber;a discharge passage provided in the casing and configured to introduce the working fluid discharged from the capacity chamber;an axial directional passage opened on an end surface of the one end of the shaft and drilled open along a shaft center of the shaft;a first radial directional passage drilled open along a radial direction of the shaft from the axial directional passage and configured to guide the working fluid inside the casing;a second radial ...

ENERGY MANAGEMENT USING ELECTRONIC FLYWHEEL

Disclosed techniques include energy management using an electronic flywheel. A plurality of AC electrical power sources is obtained, where the sources are both parallel to and independent from each other. At least one of the plurality of AC sources comprises a motor-generator. The plurality of AC sources is coupled to an AC power grid using an electronic flywheel module, where the electronic flywheel module enables both energy sourcing and energy sinking into a DC energy storage subsystem. Frequencies of the plurality of AC power sources are synchronized using the electronic flywheel module, where the synchronizing is based on an operating frequency of the AC power grid. A mix of energy flow between the plurality of AC sources and the DC energy storage subsystem is regulated. AC power is provided to the AC power grid, where the AC power is conditioned through the synchronizing and the regulating. 1. A computer-implemented method for energy management comprising:obtaining a plurality of AC electrical power sources, wherein the sources are both parallel to and independent from each other;coupling the plurality of AC sources to an AC power grid using an electronic flywheel module, wherein the electronic flywheel module enables both energy sourcing and energy sinking into a DC energy storage subsystem;synchronizing frequencies of one or more of the plurality of AC power sources using the electronic flywheel module, wherein the synchronizing is based on an operating frequency of the AC power grid;regulating a mix of energy flow between the plurality of AC sources and the DC energy storage subsystem; andproviding AC power to the AC power grid, wherein the AC power is conditioned through the synchronizing and the regulating.2. The method of wherein at least one of the plurality of AC sources comprises a motor-generator.3. The method of wherein the synchronizing includes adjusting the speed of the motor-generator.4. The method of wherein the motor-generator comprises a pump ...

HYDRAULIC AUTOMATIC TRANSMISSION BICYCLE

This disclosure generally relates to an automatic bicycle, particularly to a hydraulic automatic transmission bicycle which can automatically and adaptively change gear ratios. More particularly, this disclosure relates to those hydraulic automatic transmission bicycles which use fluid pressure to change such gear ratios, and which include various hydraulic automatic transmissions which may be provided in various configurations and may operate in various methods and sequences to provide automatic and infinitely variable gear ratios. 1. A hydraulic automatic transmission for a hydraulic automatic transmission bicycle comprising:a hydraulic motor which pressurizes fluid contained therein to a motor pressure,wherein said hydraulic motor increases said motor pressure as an external mechanical load which is exerted onto said hydraulic motor increases, but wherein said hydraulic motor decreases said motor pressure as said external mechanical load decreases;a hydraulic pump which includes an outer cam ring and which pressurizes fluid contained therein using mechanical energy supplied thereto by a user to a pump pressure which is greater than said motor pressure, and which discharges a pump discharging volume of said pressurized fluid toward said hydraulic motor,wherein said pump discharging volume decreases as said mechanical load increases and as said outer cam ring moves in one direction, but wherein said pump discharging volume Increases as said mechanical load decreases and as said outer cam ring moves in another direction which is different from said one direction, whereby said hydraulic automatic transmission automatically changes gear ratios in response to changes in said pump discharging volume which in turn changes in response to changes in said external load; anda controller unit which is configured to set up at least one of a maximum value of said external mechanical load at which said transmission changes said gear ratios, a minimum value of said external ...

Harmonic Distribution Radial Piston Hydraulic Machine

The hydraulic machine includes a cam and a cylinder block with pistons co-operating with cam lobes, each of which has two ramps extending between top and bottom dead center arcs. The cylinders are connected in alternation to a feed and to a discharge, in sequences separated by switchover stages including an isolation stage during which they are isolated relative to the feed and discharge main ducts. The angular position of the start or of the end of at least one first isolation stage relative to the corresponding dead center arc is different from the angular position of the start or of the end of at least one second isolation stage relative to its corresponding dead center arc, both of these dead center arcs being top dead center arcs or both of them being bottom dead center arcs. 1. A hydraulic machine having radial pistons and comprising a cam and a cylinder block that are suitable for turning relative to each other about an axis of rotation , the cylinder block having radial cylinders connected to communication orifices of the cylinder block , pistons mounted to slide in the cylinders being suitable for co-operating with the cam , which has a plurality of lobes , each having two ramps , each of which extends between a top dead center arc and a bottom dead center arc , the machine further comprising a fluid distributor suitable for connecting the communication orifices to a first or second main duct for feed or discharge , in sequences comprising connection stages during which said communication orifices are connected to the first main duct and connection stages during which said communication orifices are connected to the second main duct , which stages are separated by switchover stages that comprise , in succession , closing the connection to one of the main ducts , an isolation stage during which the communication orifices are isolated from the two main ducts , and opening the connection to the other main duct , each isolation stage taking place , for the ...

Hydraulic driving device

A hydraulic driving device includes: a hydraulic motor configured to operate by flushing oil from a hydraulic pump through a high pressure oil passage and a low pressure oil passage; a low pressure selective valve configured to operate in accordance with differential pressure between the high pressure oil passage and the low pressure oil passage, and to discharge the oil in the low pressure oil passage inside a motor case; a tank oil passage configured to connect the inside of the motor case with an oil tank; and a choke throttle provided to the low pressure selective valve or to an oil passage lower than the low pressure selective valve.

RENEWABLE ENERGY AND WASTE HEAT HARVESTING SYSTEM

A renewable energy and waste heat harvesting system is disclosed. The system includes an accumulator unit having a high pressure accumulator and a low pressure accumulator. At least one piston is mounted for reciprocation in the high pressure accumulator. The accumulator unit is configured to receive, store, and transfer energy from the hydraulic fluid to the energy storage media. The system collects energy from a renewable energy source and transfers the collected energy using the pressurized hydraulic fluid. The system further includes one or more rotational directional control valves, in which at least one rotational directional control valve is positioned on each side of the accumulator unit. Each rotational directional control valve includes multiple ports. The system also includes one or more variable displacement hydraulic rotational units. At least one variable displacement hydraulic rotational unit is positioned adjacent each of the rotational directional control valves. 1. A renewable energy and waste heat harvesting system , comprising:an accumulator unit that includes a high pressure accumulator and a low pressure accumulator, the accumulator unit having a first side and a second side;at least one piston mounted for reciprocation in the high pressure accumulator, the accumulator unit configured to receive, store, and transfer energy from pressurized hydraulic fluid to energy storage media;two or more rotational directional control valves, at least one rotational directional control valve positioned and connected to each side of the accumulator unit, each rotational directional control valve including multiple ports,the accumulator unit receiving energy in pressurized hydraulic fluid, via a port in the rotational directional control valve, from one or more renewable energy input sources,the accumulator transferring energy by driving pressurized hydraulic fluid through a different port in the rotational directional control valve and out of one or more ...

Piston

The piston includes a body having a hollow chamber defined therein, and a member inserted in the hollowed chamber to define an oil passage between an inner peripheral surface of the hollow chamber and an opposing outer peripheral surface of the member. This reduces the dead volume and, as a result, improves the compressibility. In addition, the increased cooling performance prevents the fusing of the piston to the cylinder.

CYLINDER BLOCK AND SWASH PLATE TYPE LIQUID-PRESSURE ROTATING APPARATUS INCLUDING SAME

A cylinder block includes: a plurality of cylinder bores including respective openings formed on a piston insertion end surface of the cylinder block, pistons being inserted in the respective cylinder bores and being configured to reciprocate and slide in the respective cylinder bores when the cylinder block rotates; and a cooling portion, wherein the cooling portion includes a plurality of cooling holes each formed between the adjacent cylinder bores and extending from the piston insertion end surface in an axial direction of the cylinder block. 1. A cylinder block comprising:a plurality of cylinder bores including respective openings formed on a piston insertion end surface of the cylinder block, pistons being inserted in the respective cylinder bores and being configured to reciprocate and slide in the respective cylinder bores when the cylinder block rotates; anda cooling portion, whereinthe cooling portion includes a plurality of cooling holes each formed between the adjacent cylinder bores and extending from the piston insertion end surface in an axial direction of the cylinder block.2. The cylinder block according to claim 1 , wherein each of the cooling holes is inclined so as to penetrate the cylinder block from the piston insertion end surface toward an outer peripheral surface of the cylinder block.3. The cylinder block according to claim 1 , wherein each of the cooling holes includes:a linear portion extending in parallel with the cylinder bore; anda drain hole portion extending from a position of the linear portion toward an outer peripheral surface of the cylinder block and being open on the outer peripheral surface, the position being located away from the piston insertion end surface.4. A cylinder block comprising:a plurality of cylinder bores including respective openings formed on a piston insertion end surface of the cylinder block, pistons being inserted in the respective cylinder bores and being configured to reciprocate and slide in the ...

INDUSTRIAL SYSTEM WITH SYNTHETICALLY COMMUTATED VARIABLE DISPLACEMENT FLUID WORKING MACHINE

An injection moulding system, water jet cutting machine or other industrial system has a synthetically controlled variable displacement fluid working machine which outputs hydraulic fluid to one or more fluid consumers, such as rams or hydraulic motors, through hydraulically stiff fluid retaining volumes and receives hydraulic fluid back from one or more fluid consumers through the same or other said hydraulically stiff fluid retaining volumes. Individual piston cylinder assemblies can be allocated to different outputs. There may be no valve between the machine and the consumers. A working chamber of the machine can be caused to undergo a motoring cycle to enable the machine to output more power than is received from a motor driving the machine. An accumulator can be used to provide a source of hydraulic compliance. The machine can be controlled using pressure control, flow control, feed forward control or variable power/variable power limit control. 2. An industrial system according to claim 1 , where at least one of the fluid retaining bodies is hydraulically stiff.3. An industrial system according to where the volume of the at least one fluid retaining body changes claim 2 , when varying flow between zero flow and operating pressure or high pressure flow either by less than 2% claim 2 , or the required number of machine piston stroke cycles producing a variation in flow between zero flow and operating pressure or high pressure flow is less than or equal to five.4. An industrial system according to claim 1 , where there is no valve hydraulically intermediate the fluid working machine and one or more said fluid consumer claim 1 , which would otherwise function to check and/or divert flow claim 1 , and there is no cross line relief between portions of the circuit.5. An industrial system according to claim 1 , further comprises at least one additional fluid working machine comprising a plurality of working chambers of cyclically varying volume claim 1 , a rotatable ...

FLUID-DRIVEN MOTOR

A motor () to be driven by a pressurized fluid includes a manifold () with an arcuate surface () defining a valve opening () surrounded by a sealing surface. A cylinder () has an aperture () cooperating with the arcuate surface (). The cylinder () is pivotally mounted so as to be pivotable between a neutral state in which the aperture faces the sealing surface, an inlet state in which the aperture () is in fluid connection with the valve opening (), and an exhaust in which the aperture () is in fluid connection with a drainage volume. A piston (), deployed in the cylinder (), is driven to extend by pressure within the cylinder. The piston is linked to a crank () so that rotation of a crankshaft () causes a cyclic motion of the piston () and cylinder () from the inlet state for an extension power stroke of the piston (), through the neutral state and to the exhaust state for a return motion of the piston (). The pivot axis of the cylinder, preferably implemented using a pivot axle (), is located between the crankshaft axis and the arcuate surface (). 2. The motor of claim 1 , wherein said pivot axis of said cylinder is located in a middle third of a distance between said crankshaft axis and said arcuate surface.3. The motor of claim 1 , wherein said pivot axis of said cylinder is located closer to said arcuate surface than to said crankshaft axis.4. The motor of claim 1 , wherein said piston is formed with a piston head claim 1 , carrying a seal for sealed engagement with a portion of said cylinder claim 1 , and a piston body claim 1 , rigidly interconnected with said piston head claim 1 , said piston body extending from said piston head to said crank.5. The motor of claim 4 , wherein said cylinder is pivotally mounted on a pivot axle which traverses said cylinder claim 4 , and wherein said piston body is formed with a slot for accommodating said pivot axle while allowing a range of axial motion of said piston.6. The motor of claim 4 , wherein said piston head seal ...

ENERGY CONVERSION APPARATUS

An energy conversion apparatus includes a duct that can be passed through by a transfer liquid and is intercepted by a respective turbine, which is moved by the transfer liquid to generate electricity, by means of an alternator that can be associated with the turbine. The duct includes a delivery pipe interposed between at least two tanks of the transfer liquid, and the turbine; respective pistons are configured to slide hermetically, alternately, and cyclically inside the two tanks for their alternating emptying and consequent sending of the liquid to the turbine through the delivery pipe. The duct further includes a return pipe interposed between the turbine and the two tanks, for the alternating sending of the transfer liquid to the corresponding tank that was previously emptied, after the movement of the turbine to generate electricity, and the consequent restoring of the level of the transfer liquid.

ROTATIONAL MECHANICAL TRANSFORMER APPARATUS AND METHODS

A rotational mechanical transformer has been arranged for transfer and transformation of velocity, force, angular momentum, torque, energy/work, energy density, and pressure, associated with at least one rotating device. The transformer includes an actuator having at least one cylinder arranged to contain the at least one working fluid, an externally supported shaft and a drive shaft having parallel axes orthogonally displaced by a predetermined displacement, and each respectively connected to at least one connecting arm and at least one additional connecting arm. The at least one cylinder includes at least one actuator rod and at least one blind end each respectively connected with at least one revolving eccenter axle and the at least one drive shaft, and have been arranged to allow for angular displacements of the at least one actuator with respect to the parallel axis. 1. A rotational mechanical transformer arranged for transfer and transformation of velocity , force , angular momentum , torque , energy/work , energy density , and pressure associated with at least one rotating device containing at least one working fluid comprising:at least one actuator including at least one cylinder arranged to contain the at least one working fluid;at least one externally supported shaft and at least one drive shaft, having parallel axes orthogonally displaced by a predetermined displacement, and each respectively connected to at least one connecting arm and at least one additional connecting arm;wherein, the at least one cylinder includes at least one actuator rod and at least one blind end each respectively connected with at least one revolving eccenter axle and the at least one drive shaft, and arranged to allow for angular displacements of the at least one actuator with respect to the parallel axis;wherein, the at least one revolving eccenter axle have been rotationally connected to the at least one connecting arm and at least one revolving eccenter bar, while the at least ...

A fluid motor and a fluid pump

A fluid machine for a pneumatic or hydraulic drive system, said fluid machine being able to work as a fluid motor or as a fluid pump, comprising: at least two piston assemblies each comprising a piston means ( 110 a - c ), the at least two piston assemblies being operable to cause sequential reciprocating movement of the pistons means ( 110 a - c ); a drive member ( 120 ) rotatable about an axis and providing an annular, wave-like surface ( 122 ) extending at least partially radially to the axis, towards which the piston means ( 110 a - c ) project, wherein, in case of working as a fluid motor, the pistons means ( 110 a - c ) are arranged to drive rotation of the drive member ( 120 ) about the axis at least by a pushing action on said wave-like surface ( 122 ) or, in the case of working as a fluid pump, the piston means ( 110 a - c ) are arranged to cooperate with said wave-like surface ( 122 ) so that rotation of the drive member ( 120 ) drives sequential reciprocating motion of the piston means ( 110 a - c ).

INTEGRATED ENERGY GENERATING DAMPER

A linear energy harvesting device that includes a housing and a piston that moves at least partially through the housing when it is compressed or extended from a rest position. When the piston moves, hydraulic fluid is pressurized and drives a hydraulic motor. The hydraulic motor drives an electric generator that produces electricity. Both the motor and generator are central to the device housing. Exemplary configurations are disclosed such as monotube, twin-tube, tri-tube and rotary based designs that each incorporates an integrated energy harvesting apparatus. By varying the electrical characteristics on an internal generator, the kinematic characteristics of the energy harvesting apparatus can be dynamically altered. In another mode, the apparatus can be used as an actuator to create linear movement. Applications include vehicle suspension systems (to act as the primary damper component), railcar bogie dampers, or industrial applications such as machinery dampers and wave energy harvesters, and electro-hydraulic actuators. 1166-. (canceled)167. A suspension system including at least one hydraulic damper assembly comprising:a damper with a first housing that includes a first volume containing hydraulic fluid at a first pressure and a second volume containing hydraulic fluid at a second pressure, wherein the first volume and the second volume are separated by a piston that is received in the housing and attached to a piston rod, and wherein the first pressure acts on a first side of the piston and the second pressure acts on a second side of the piston;a second housing that includes a hydraulic unit with a rotational component operatively coupled to an electric machine,a first flow path between the first volume and the second volume that passes through the hydraulic unit;a second flow path, between the first volume and the second volume that bypasses the hydraulic unit,a first valve that controls a first fluid flow through the second flow path;at least one ...

Energy chain

A system for producing drive energy includes a control unit, and an intensifier that receives water from a water source and oil from an oil source, pressurizes the oil, and transfers pressurized oil. The system also includes a compression cylinder that receives oil from the oil source and the pressurized oil from the intensifier so that oil collected in the compression cylinder is pressurized to a predetermined pressure, and that transfers the oil at the predetermined pressure. A control valve is provided for controlling the oil to be received by the compression cylinder from the oil source and for controlling the oil transferred at the predetermined pressure. The system includes a hydraulic motor that receives the oil transferred at the predetermined pressure, and utilizes the predetermined pressure to drive the hydraulic motor. The hydraulic motor turns a generator so that the generator produces energy without the expenditure of fossil fuel.

INTEGRATED ENERGY GENERATING DAMPER

A linear energy harvesting device that includes a housing and a piston that moves at least partially through the housing when it is compressed or extended from a rest position. When the piston moves, hydraulic fluid is pressurized and drives a hydraulic motor. The hydraulic motor drives an electric generator that produces electricity. Both the motor and generator are central to the device housing. Exemplary configurations are disclosed such as monotube, twin-tube, tri-tube and rotary based designs that each incorporates an integrated energy harvesting apparatus. By varying the electrical characteristics on an internal generator, the kinematic characteristics of the energy harvesting apparatus can be dynamically altered. In another mode, the apparatus can be used as an actuator to create linear movement. Applications include vehicle suspension systems (to act as the primary damper component), railcar bogie dampers, or industrial applications such as machinery dampers and wave energy harvesters, and electro-hydraulic actuators. 1. A hydraulic suspension actuator of a vehicle , comprising: a hydraulic unit;', 'an electric machine operatively coupled to the hydraulic unit, wherein the hydraulic unit includes a first port and a second port, wherein the hydraulic unit is configured to operate as a hydraulic pump, and, 'an integrated unit includingwherein the electric machine is configured to operate as an electric motor; an inner tube;', 'an outer tube that at least partially surrounds the inner tube, wherein a first volume is located between the inner tube and the outer tube;', 'a piston, slidably received in the inner tube, wherein the inner tube includes a second volume containing hydraulic fluid and a third volume containing hydraulic fluid, wherein the second volume and the third volume are separated by the piston, wherein the first volume is fluidly connected to at least one of the second volume and the third volume;', 'a compressible medium contained in a portion ...

VOLUMETRIC HYDRAULIC MACHINE FOR PRESSURIZED WATER SUPPLY

A volumetric hydraulic machine for water supply in pressure comprising a rotating slide valve integral with a crankshaft which rotates around an axis, said rotating slide valve is rotatably mounted on a distribution box that comprises a plurality of cavities respectively connected to a plurality of pipes of which an outlet pipe connected with the output in the water supply, the other remaining pipes of said plurality of pipes each respectively connected with only one of a plurality of chambers of a monoblock which integrally mounts said distribution box, said monoblock comprising a central chamber and at least a pair of further chambers, said crankshaft engaging at least a pair of connecting rods mounting pistons. 1. Volumetric hydraulic machine for water supply in pressure , wherein it comprises a rotating slide valve integral with a crankshaft which rotates around an axis , said rotating slide valve is rotatably mounted on a distribution box that includes a plurality of cavities respectively connected to a plurality of pipes of which an outlet pipe connected with the output in the water supply , the other remaining pipes of said plurality of pipes each respectively connected with only one of a plurality of chambers of a monoblock which integrally mounts said distribution box , said monoblock comprising a central chamber and at least a pair of further chambers , the interior of said central chamber being suitable for allowing the rotation of the water set in motion by said crankshaft , engaging at least a pair of connecting rods , each of said connecting rods mounting a piston each of which said pistons changes the volume of one of said pair of further chambers.2. The hydraulic machine according to claim 1 , wherein said distribution box comprises at least three cavities arranged at regular intervals between them according to a central symmetry with respect to the axis and at least a fourth cavity comprising a front hole.3. The hydraulic machine according to claim ...

HYDRAULIC PISTON ASSEMBLY

A piston assembly for a transmission includes a piston and a washer connected to the piston. In one embodiment, the washer includes a circumferential ring that extends continuously about an inner diameter, wherein a cavity is defined between the piston and the washer. A bearing element is retained and centered on the washer by the circumferential ring. 1. A piston assembly for a transmission , comprising:a piston;a washer connected to the piston and including a circumferential ring that extends continuously about an inner diameter, wherein a cavity is defined between the piston and the washer; and the washer is connected to the piston at radially outer ends of the piston and the washer; and', 'the piston includes a circumferential ring disposed at an outer diameter or the piston and the washer includes a radially extending section disposed within the circumferential ring of the piston connecting the piston and the washer., 'a bearing element retained and centered on the washer by the circumferential ring, wherein2. The piston assembly of claim 1 , wherein:the bearing element includes at least one bearing roller contactable with the washer and a cage including a circumferential ring;the circumferential ring of the washer includes a radial protrusion; andthe circumferential ring of the cage is retained on the washer by the radial protrusion.3. (canceled)4. (canceled)5. The piston assembly of claim 1 , wherein the piston is formed by stamping.6. The piston assembly of claim 1 , wherein the washer is formed by stamping.7. A piston assembly for a transmission claim 1 , comprising:a piston arranged for sealing engagement with a housing;a washer connected to the piston, wherein a cavity is defined between the piston and the washer;inner and outer seals disposed on inner and outer surfaces, respectively, of the piston for sealing the piston to the housing; anda retaining plate connected to the piston and configured to retain the inner and outer seals on the piston.8. The ...

INTEGRATED ENERGY GENERATING DAMPER

A linear energy harvesting device that includes a housing and a piston that moves at least partially through the housing when it is compressed or extended from a rest position. When the piston moves, hydraulic fluid is pressurized and drives a hydraulic motor. The hydraulic motor drives an electric generator that produces electricity. Both the motor and generator are central to the device housing. Exemplary configurations are disclosed such as monotube, twin-tube, tri-tube and rotary based designs that each incorporates an integrated energy harvesting apparatus. By varying the electrical characteristics on an internal generator, the kinematic characteristics of the energy harvesting apparatus can be dynamically altered. In another mode, the apparatus can be used as an actuator to create linear movement. Applications include vehicle suspension systems (to act as the primary damper component), railcar bogie dampers, or industrial applications such as machinery dampers and wave energy harvesters, and electro-hydraulic actuators. 1. (canceled)2. A hydraulic active suspension actuator of a vehicle , comprising:a hydraulic pump comprising a first port and a second port; and a first tube;', 'a second tube that at least partially surrounds the first tube, wherein a first volume is located between the first tube and the second tube;', 'a piston, slidably received in the first tube, wherein the first tube includes a second volume containing hydraulic fluid and a third volume containing hydraulic fluid, wherein the second volume and the third volume are separated by the piston, wherein the first volume is fluidly connected to at least one of the second volume or the third volume; and', 'a compressible medium contained in a portion of the first volume., 'a multi-tube damper assembly in fluid communication with the hydraulic unit, the multi-tube damper assembly, comprising3. The hydraulic suspension actuator of claim 2 , further comprising a first fluid flow path that fluidly ...

Hydraulic machine, in particular hydraulic motor, with a recipricating movement

Hydraulic machine, in particular a hydraulic motor, comprising: a casing (1); a piston (4) which can slide in the casing, the piston separating two chambers (8, 9); hydraulic switching means (C) for supplying liquid to and for evacuating the chambers separated by the piston, comprising at least one connecting rod (14) acting on a distribution member which can adopt two stable positions; and initiating means comprising a pusher (18) which, at the end of the piston stroke, can cause a sudden change in the position of the switching means, under the action of an elastic means (E), in order to reverse the stroke. The elastic means (E) is secured, at each of its ends, to an articulation member (20a, 20b) respectively accommodated in a housing (21, 22) provided on the connecting rod and on another moving part (18) of the machine, each housing (21, 22) being open in a direction substantially opposed to the direction of the force exerted by the elastic means (E) in the housing, such that each articulation member (20a, 20b) can be removed from its open housing (21, 22) against the action of said force, thereby simplifying assembly and disassembly.

星形缸体液压

一种星形缸体液压马达，包括：摆动液压缸(1)，所述摆动液压缸借助于形成在马达轴(3)上的偏心曲柄销(2)来驱动摆动，摆动缸体的衬套(4)设有用于围绕平行于所述马达轴的转动轴线(A)的平行轴线(C)摆动的耳轴(5)，所述耳轴可摆动地联接至马达曲柄箱(6)；在所述衬套内的往复运动的活塞(7)，所述活塞设有用于在所述偏心曲柄销的外表面(9)上滑动的转子(8)；以及转盘式分配器(10、23)，所述分配器联接至所述马达轴以与之同步转动，适于在输送和排出冲程中经由倾斜或穿通构造的端口使液压回路的管道(12、13)与相应缸体的管道(14)流体连通；并且，有利的是，分配器的转盘形成有通向在一个面(27)与分配器盖(41)的内壁之间的包含有密封件(28)的通路的连接/供应装置(38、40)，且在密封件外侧的区域中有加压流体。在另一实施例中，该马达的耳轴(5)在它们的外表面(31)上与耳轴轴颈摩擦接触的区域处形成有槽状通道(30)，且形成具有大致梯形投影形状的分支布置(30)，从缸体内部通过一个或多个供应通道(32)给该分支布置中的通道供应加压流体。

可往复移动的液压机械尤其是液压马达

一种液压机械，尤其是液压马达，包括：外壳(1)；能够在外壳中滑动的活塞(4)，该活塞分隔两个腔(8、9)；用于向由活塞分隔的腔供给液体并用于使腔排空的液压转换装置(C)，这些转换装置包括作用在分配元件上的至少一个连杆(14)，所述分配元件可以采用两个稳定位置；以及触发装置，其包括在活塞行程末端能够在弹性装置(E)的作用下促使转换装置的位置突然改变以使行程反向。弹性装置(E)在其每个端部固定在铰接元件(20a、20b)上，所述铰接元件(20a、20b)分别容纳在设置于连杆上和机械另一移动部件(18)上的壳体(21、22)内，每个壳体(21、22)在与由弹性装置(E)在壳体上施加的力的方向大致相反的方向上开口，使得每个铰接元件(20a、20b)可以克服所述力的作用从其开口壳体(21、22)中被移出，由此简化了组装和拆卸。

基于多级双柱塞-偏心齿轮机构的全金属井下动力钻具

本发明公开了一种基于多级双柱塞‑偏心齿轮机构的全金属井下动力钻具，包括同轴设置的配流轴、外管和多级偏心齿轮驱动机构，配流轴通过多级偏心齿轮驱动机构悬挂支撑在外管内。本发明提供了一种钻井液水力驱动的新型旋转柱塞式动力钻具，柱塞结构加工精度高、成本低，柱塞式动密封效果好；通过带有偏心结构的行星齿轮系传递扭矩，提高了动力钻具的工作效率。多级双柱塞‑偏心齿轮机构驱动的动力钻具采用全金属结构，可耐高温环境；柱塞结构简单、密封效果好，钻具曲面加工难度小；有效缓解了金属密封效果差的问题；同时，采用模块化结构，可以安装多级柱塞结构进行接力式驱动，采用双柱塞结构保证内部力的平衡稳定且能够增大钻具扭矩。

一种模块化能量转换装置及其工作方法与应用

本发明公开了一种模块化能量转换装置及其工作方法与应用，属于波浪能发电领域，包括执行器模块、插装阀模块、高压蓄能器模块、发电模块和浮子模块，执行器模块包括一级空心活塞杆、二级空心活塞杆和低压蓄能器，低压蓄能器内圆壁用于设置一级空心活塞杆，一级空心活塞杆的空心结构内滑动设置二级空心活塞杆，一级空心活塞杆与浮子模块连接，能够随浮子模块的运动而运动，液压马达与发电机连接。本发明采用模块化、集成式设计，能适用于多类波浪能发电的装置，通过浮子模块的垂荡运动来收集波浪能，在浮子模块上升、下降阶段均能对波浪能进行收集，具有双程收集波浪能的特征。

Hydraulic device with design improved relative to its switching into operating mode

FIELD: mechanical engineering. SUBSTANCE: device 1 comprises a casing 6, which forms the first assembly. The shaft 2 forms the second assembly. The first and the second assemblies are made with the possibility to freely rotate relative to each other. The cam 3 with multiple projections is connected to one of said assemblies, the first or the second, while rotating. It contains the distributor 51 and the distributor cover 52. The cylinders block 4 is mounted with the possibility of free rotation relative to said first and second assemblies. It comprises the coupling means with the other of said assembly, while rotating. The hydraulic device 1 comprises returning means tending to displace the cylinders block 4 with the purpose of its disengagement while rotating with said first and second assemblies. The distributor 5 is configured to provide the clutch of the cylinders block 4 while rotating with the other of said first and second assemblies at the pressure feeding. It can be used in vehicles. EFFECT: ability to carry out the drive using the nearest driven motor with less effort, slip, wear and noise, and to prevent shock or pressure surges. 15 cl, 16 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 619 436 C2 (51) МПК F04B 1/107 (2006.01) B60K 17/356 (2006.01) F03C 1/247 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2015112671, 19.09.2013 (24) Дата начала отсчета срока действия патента: 19.09.2013 Дата регистрации: (73) Патентообладатель(и): ПОКЛЭН ГИДРОЛИКС ИНДАСТРИ (FR) Приоритет(ы): (30) Конвенционный приоритет: 28.09.2012 FR 1259193; 25.04.2013 FR 1353800 (43) Дата публикации заявки: 20.11.2016 Бюл. № 32 (45) Опубликовано: 15.05.2017 Бюл. № 14 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 28.04.2015 9104126 U1,06.08.1992. EP 1355068 A1, 22.10.2003. GB 2068474 A, 12.08.1981. US 5263401 A, 23.11.1993. RU2313694 C2, 27.12.2007. (86) Заявка PCT: EP 2013/069523 (19. ...

Inclined shaft-type variable displacement pump/motor

본 발명은 피스톤이 실린더의 내부를 왕복 이동하는 사축식 가변 용량형 펌프·모터의 개량에 관한 것으로서, 제 1 밸브판부와 제 2 밸브판부를 구비한 복수의 밸브판부에 의해 밸브판 부재를 구성하고, 또한 이들 복수의 밸브판부를 서로 슬라이딩 접촉면을 개재하여 슬라이딩할 수 있도록 밀접시킨 상태로 실린더 블록의 블록측 슬라이딩면 및 케이스의 안내 오목면 사이에 개재시킴으로써, 항상 실린더 블록, 밸브판 부재, 케이스의 3 자 사이가 서로 밀착한 상태를 확보하도록 하고 있다. The present invention relates to an improvement of a bent axis variable displacement pump and motor in which a piston reciprocates inside a cylinder. The valve plate member is constituted by a plurality of valve plate portions including a first valve plate portion and a second valve plate portion. Furthermore, by interposing the plurality of valve plate portions between the block side sliding surface of the cylinder block and the guide concave surface of the case in a state where the plurality of valve plate portions are in close contact with each other via the sliding contact surface, the cylinder block, the valve plate member, the case To ensure that the three parties are in close contact with each other.

Integrated energy produces damper

提供了一种线性能量获取装置，其包括壳体和活塞，该活塞在其从平衡位置被压缩或伸展时至少部分地移动穿过该壳体。当活塞移动时，液压流体被加压并且驱动液压马达。液压马达驱动发电机，发电机产生电流。马达和发电机二者处于装置壳体的中央。已公开了比如基于单筒式、双筒式、三筒式和旋转式设计的示例性构型，每个设计均结合有整合式能量获取设备。通过改变内置发电机上的电学性能，能够被动态地改变能量获取设备的运动学特性。在另一个模式中，设备能够被用作致动器以产生线性运动。应用包括车辆悬架系统（充当主要的阻尼器部件）、轨道车转向架阻尼器、或一些工业应用，比如机械阻尼器、波能获取器以及电液致动器等。

HYDRAULIC DEVICE COMPRISING FASTENING MEANS FOR TRANSMITTING A HIGH TORQUE

Dispositif hydraulique tel qu'un moteur ou une pompe comprenant une première (1C ; 1A) et une deuxième (1D ; 1B) pièce fixées ensemble, l'une de ces pièces étant une partie de carter. Le moyen de fixation entre ces deux pièces comporte au moins un ensemble de solidarisation, ledit ensemble de solidarisation comportant deux perçages (50C,50D) aménagés sur les faces en contact des deux pièces, et un équipement de cisaillement apte à transmettre un couple élevé entre les pièces, monté dans lesdits perçages. L'équipement de cisaillement comporte une pièce déformable (21) susceptible, sous l'effet de moyens de déformations, de subir une expansion radiale pour rattraper le jeu entre l'équipement de cisaillement et les perçages dudit ensemble. A hydraulic device such as a motor or a pump comprising a first (1C; 1A) and a second (1D; 1B) part fixed together, one of these parts being a housing part. The fastening means between these two parts comprises at least one fastening assembly, said fastening assembly comprising two bores (50C, 50D) arranged on the faces in contact of the two parts, and shearing equipment capable of transmitting a high torque between the parts, mounted in said holes. The shearing equipment comprises a deformable piece (21) capable, under the effect of deformation means, to undergo a radial expansion to make up the clearance between the shearing equipment and the holes in said assembly.

Hydraulic motor having radial cylinders and continuous variable displacement

A radial cylinder hydraulic motor having continuously variable displacement capabilities comprises: oscillating hydraulic cylinders (1) which are driven to oscillate through an eccentric crankpin (2) formed on the motor shaft (3) and carrying a radially movable ring (14) adapted to be shifted along the radial direction of the crankpin by actuation of opposed counteracting hydraulic cylinders (5, 6, 7) housed within the crankpin; a hydraulic control circuit for controlling and adjusting the positions of said counteracting hydraulic cylinders in a continuous manner; an electronic control circuit adapted to control the hydraulic control circuit and process signals from at least one position sensor arranged to detect the positions of said oscillating cylinders; a rotary joint (8) for hydraulic conduits (9, 10) through which said counteracting hydraulic cylinders are controlled and adjusted; wherein the sensor (45) is an angular position sensor placed close to the oscillation axis (C) of at least one oscillating cylinder (1) to measure, based upon changes in the signal, an angular position currently entered by the cylinder liner during the swing.

Hydraulic motor having radial cylinders and continuous variable displacement

A radial cylinder hydraulic motor having continuously variable displacement capabilities includes: oscillating hydraulic cylinders which are driven to oscillate through an eccentric crankpin formed on the motor shaft and carrying a radially movable ring adapted to be shifted along the radial direction of the crankpin by actuation of opposed counteracting hydraulic cylinders housed within the crankpin; a hydraulic control circuit for controlling and adjusting the positions of said counteracting hydraulic cylinders in a continuous manner; an electronic control circuit adapted to control the hydraulic control circuit and process signals from at least one position sensor arranged to detect the positions of said oscillating cylinders; a rotary joint for hydraulic conduits through which said counteracting hydraulic cylinders are controlled and adjusted.

Hydraulic motor with star shaped cylinder and continuously variable displacement

一种具有连续可变排量能力的星形缸体液压马达，该液压马达包括：摆动液压缸(1)，所述摆动液压缸通过形成在马达轴(3)上的偏心曲柄销(2)被驱动摆动，所述偏心曲柄销承载有径向可动环(14)，所述径向可动环适于通过致动容纳在曲柄销内的相对的反作用液压缸(5、6、7)来沿着曲柄销的径向方向移位；液压控制回路，用于以连续的方式控制和调节所述反作用液压缸的位置；电子控制电路，适于控制液压控制回路并处理来自至少一个位置传感器的信号，该传感器设置成检测摆动缸体的位置；以及转动接头(8)，该转动接头用于所述反作用液压缸通过其进行控制和调节的液压管道(9、10)；其中，传感器(45)是角度位置传感器，该角度位置传感器靠近至少一个摆动缸体(1)的摆动轴线(C)放置，以基于信号中的变化来测量缸体衬套在摇摆过程中当前所进入的角度位置。

Hydraulic motor for driving auxiliary units

The application relates to a hydraulic motor for driving auxiliary units. The aim of the application is to develop a hydraulic motor for driving auxiliary units that operates very effectively both at low operating pressures present at the hydraulic motor and at high operating pressures present at the hydraulic motor, at the same time has very low friction losses, additionally has a very small size and minimized own weight, always ensures very precise, reliable rotational speed control dependent on the working pressure, furthermore can be produced very simply and economically in series production, operates reliably and without susceptibility to malfunctions even under very high ambient temperatures, and ensures a very high overall efficiency during the entire service life with low driving power, high operating reliability, and high dependability. The hydraulic motor for driving an auxiliary unit (1) is characterized in that an eccentric pin (10) having working bores (11) and having control mirror surfaces (12) is arranged in a rotationally fixed manner on the shaft end of the shaft (4) opposite the working element (5), and a radial piston motor (14), which is positioned in a rotationally fixed manner in relation to the auxiliary unit housing (2), is rotatably arranged on said eccentric pin (10) in a working chamber (13) between the extended outer running ring (3) and the eccentric pin (10).

Hydraulic machine, especially hydraulic motor with reciprocating motion

Hydromechanical wheel drive

Power generating apparatus of renewable energy type

A power generating apparatus of renewable energy includes a tower, a nacelle provided at the tower, a main shaft housed in the nacelle and rotating with a blade, a hydraulic pump housed in the nacelle and connected to the main shaft, a hydraulic motor driven by operating oil supplied from the hydraulic pump, a generator connected to the hydraulic motor, and a piping between the hydraulic pump and the hydraulic motor. The hydraulic motor is housed in at least one of the nacelle and the end part of the tower, the generator is housed in at least one of the nacelle and the end part of the tower, and at least one of the hydraulic motor and the generator is arranged in a space excluding an area between the main shaft and the hydraulic pump; and a rear end wall surface of a wall of the nacelle.

Energy extraction device, group of energy extraction devices and operating methods

Regenerative energy power generator and control method thereof

本発明は、回転シャフト８と、回転シャフト８によって駆動される油圧ポンプ１２と、油圧ポンプ１２で昇圧された作動油によって駆動される油圧モータ１４と、発電機２０と、ピッチ駆動機構５とを備える再生エネルギー型発電装置１に適用される。停止制御部４０によって、異常事象の発生時に、再生エネルギー型発電装置１の運転状態を示す状態値と、通常運転時の状態値である正常値との乖離を算出し、この乖離が第１閾値以上の場合、油圧ポンプ１２のアイドル状態への移行、油圧モータ１４のアイドル状態への移行およびピッチ駆動機構５によるピッチ角のフェザー側への移行の少なくとも一つをハードワイヤード回路により行い、前記乖離が第１閾値よりも正常値に近い第２閾値以上第１閾値未満の場合、油圧ポンプ１２のアイドル状態への移行、油圧モータ１４のアイドル状態への移行およびピッチ駆動機構５によるピッチ角のフェザー側への移行の全てをソフトウェア制御により行う。 The present invention includes a rotating shaft 8, a hydraulic pump 12 driven by the rotating shaft 8, a hydraulic motor 14 driven by hydraulic oil boosted by the hydraulic pump 12, a generator 20, and a pitch driving mechanism 5. It is applied to the renewable energy type power generator 1 provided. When an abnormal event occurs, the stop control unit 40 calculates a divergence between a state value indicating the operating state of the renewable energy power generation device 1 and a normal value that is a state value during normal operation, and this divergence is a first threshold value. In the above case, at least one of the transition of the hydraulic pump 12 to the idle state, the transition of the hydraulic motor 14 to the idle state, and the transition of the pitch angle to the feather side by the pitch drive mechanism 5 is performed by a hardwired circuit, Is greater than or equal to a second threshold value closer to the normal value than the first threshold value and less than the first threshold value, the hydraulic pump 12 transitions to the idle state, the hydraulic motor 14 transitions to the idle state, and the pitch angle feather by the pitch drive mechanism 5. All the transition to the side is performed by software control.

Structure for adjusting swash plate angle of a variable displacement hydraulic motor

가변용량형 유압모터의 경사판 각도 조절구조를 가진 유압모터로서, 본체 케이스, 본체 케이스에 대하여 상대회전가능하게 지지된 회전축, 이 회전축과 일체로 회전하고, 액셀형의 플런저를 가지는 복수의 실린더 블록, 이들의 플런저 선단과 접촉하는 경사판 부재, 경사판 부재의 본체 케이스에 대한 피벗각도를 조절가능하게 경사판 부재를 본체 케이스에 대하여 피봇가능하게 지지하는 피벗축, 그리고 회전축방향으로부터 피봇가능하게 지지하는 피벗축, 그리고 회전축방향으로부터 본 경우, 피벗축의 양쪽에 설치되어 있는 제1과 제2 유압실린더를 구비하고 있다. A hydraulic motor having an inclined plate angle adjustment structure of a variable displacement hydraulic motor, comprising: a main body case, a rotating shaft supported relative to the main body case, a plurality of cylinder blocks rotating integrally with the rotating shaft, and having an accelerator type plunger, An inclined plate member in contact with the plunger tip thereof, a pivot axis pivotally supporting the inclined plate member with respect to the main body case so that the pivot angle of the inclined plate member with respect to the main body case is adjustable, and a pivot axis pivotally supporting from the rotation axis direction, And when it sees from a rotating shaft direction, the 1st and 2nd hydraulic cylinders provided in both of a pivot shaft are provided. 이들의 제1과 제2유압실린더는, 복수의 실린더 블록하고는 경사판 부재를 사이에 두고 본체 케이스 반대측에 고정되고, 경사판 부재와 맞닿음으로써 피벗각도를 조절한다. These 1st and 2nd hydraulic cylinders are fixed to the opposite side of a main body case with the several cylinder block in between the inclination plate members, and adjust a pivot angle by contacting an inclination plate member.

Wheel and a method to set it into rotation

FIELD: machine building. SUBSTANCE: wheel (10) comprises outer rim (20), hub (30) and at least one support device by which outer rim (20) of the wheel rests on hub (30); wherein adjusting device (48) is provided in said wheel, by means of which the position of hub (30) is adjusted relative to outer rim (20) of the wheel. Support device (40) comprises a plurality of support elements (42) disposed between hub (30) and outer rim (20) of the wheel; wherein support elements (42) are arranged in a three-dimensional arrangement in such a way that the position of hub (30) is relative to outer rim (20) of the wheel can be adjusted with five degrees of freedom. EFFECT: technical result is a wider range of technical equipment. 12 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 658 530 C2 (51) МПК B60B 19/00 (2006.01) B60B 9/24 (2006.01) B60B 9/26 (2006.01) B60B 9/28 (2006.01) B60K 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B60B 19/00 (2006.01); B60B 9/24 (2006.01); B60B 9/26 (2006.01); B60B 9/28 (2006.01); B60K 7/00 (2006.01) (21)(22) Заявка: 2016144727, 05.05.2015 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): САФ-ХОЛЛАНД ГМБХ (DE) Дата регистрации: 21.06.2018 R U 05.05.2015 (72) Автор(ы): ВЕБЕР Карстен (DE) (56) Список документов, цитированных в отчете о поиске: DE 19957373 А1, 31.05.2001. RU 2180886 С2, 27.03.2002. US 3672458 A, 27.06.1972. DE 1430372 A1, 20.03.1969. GB 2118496 A, 02.11.1983. US 574200 A, 29.12.1986. 16.05.2014 DE 10 2014 209 310.4 (43) Дата публикации заявки: 19.06.2018 Бюл. № 17 (45) Опубликовано: 21.06.2018 Бюл. № 18 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 16.12.2016 2 6 5 8 5 3 0 Приоритет(ы): (30) Конвенционный приоритет: EP 2015/059799 (05.05.2015) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 6 5 8 5 3 0 WO 2015/173065 (19.11.2015) Адрес для переписки: 119019, Москва, Гоголевский б-р, 11, этаж 3, "Гоулинг ВЛГ ( ...

Hydraulic motor mit for driving a drilling tool

The invention relates to a motor unit comprising a framework (1), a rotary shaft (5), a first fluid motor (2) having a cam which is fixed with respect to the framework and a cylinder block which is integral with the shaft (5) and is driven by the first motor (2) at a first speed of rotation. According to the invention: the shaft has a recess (6) channeling the drilling fluid; the cylinder block of the first motor is coaxial with the axis of rotation (7); the motor unit comprises a second motor (3) coupled in rotation to the shaft and driving it at a second speed of rotation which is greater than the first speed of rotation; a first meshing pinion (56) is integral and coaxial with the shaft (5); the second motor (3) has an output shaft (64) integral with a second pinion (57) meshing with the first pinion (56); and the first motor is of the type with "declutchable" pistons. One application is the production of a high-performance drilling assembly. <IMAGE>

A radial cylinder hydraulic

A radial cylinder hydraulic motor comprises: oscillating hydraulic cylinders (1) driven to oscillate by means of an eccentric crankpin (2) formed on the motor shaft (3), the oscillating cylinder liners (4) being provided with trunnions (5) for oscillation about a parallel axis (C) to the axis (A) of rotation of the motor shaft which are coupled oscillably to the motor crankcase (6); reciprocating pistons (7) within said liners which are provided with a runner (8) for sliding over the outer surface (9) of said eccentric crankpin; and a rotary disk distributor (10, 23) coupled to the motor shaft for synchronized rotation therewith, adapted to place the conduits (12, 13) of the hydraulic circuit in fluid communication with the conduits (14) of the respective cylinders during the delivery and discharge strokes via ports of slanted or through-going configuration; and advantageously includes the rotating disk of the distributor formed with a connection/supply means (38, 40) to the passageway between one face (27) and the inner wall of the distributor cover (41) incorporating a seal (28), with pressurized fluid in the area outside the seal. In another embodiment, it has the trunnions (5) formed with trough-like channels (30) in their outer surface (31), at the area of rubbing contact with the trunnion journals, into a branched layout (30) having a roughly trapezoidal projected shape, the channels in the branched layout being supplied pressurized fluid through one or more supply channels (32) from within the cylinder.

TRANSMISSION MECHANISM AND POWER

HYDRAULIC APPARATUS HAVING AN IMPROVED STRUCTURE FOR CYLINDREE

HYDRAULIC MACHINE, IN PARTICULAR A HYDRAULIC ENGINE, WITH ALTERNATIVE MOVEMENT.

HYDRAULIC MACHINE, IN PARTICULAR A HYDRAULIC ENGINE, WITH ALTERNATIVE MOVEMENT.

Machine hydraulique, en particulier un moteur hydraulique comprenant : une enveloppe (1); un piston (4) propre à coulisser dans l'enveloppe, le piston séparant deux chambres (8,9); des moyens de commutation hydraulique (C) pour l'alimentation en liquide et l'évacuation des chambres séparées par le piston, comportant au moins une biellette (14) agissant sur un organe de distribution pouvant prendre deux positions stables ; et des moyens de déclenchement comprenant un poussoir (18) propre à provoquer, en fin de course du piston, un changement brusque de la position des moyens de commutation, sous l'action d'un moyen élastique (E), pour l'inversion de la course. Le moyen élastique (E) est solidaire, à chacune de ses extrémités, d'un organe d'articulation (20a, 20b) reçu respectivement dans un logement (21,22) prévu sur la biellette et sur une autre pièce mobile (18) de la machine, chaque logement (21,22) étant ouvert suivant une direction sensiblement opposée au sens de l'effort exercé par le moyen élastique (E) dans le logement, de sorte que chaque organe d'articulation (20a, 20b) peut être extrait de son logement ouvert (21,22) à l'encontre dudit effort, le montage et le démontage s'en trouvant simplifiés. Hydraulic machine, in particular a hydraulic motor comprising: an envelope (1); a piston (4) adapted to slide in the casing, the piston separating two chambers (8, 9); hydraulic switching means (C) for supplying liquid and discharging the chambers separated by the piston, comprising at least one rod (14) acting on a dispensing member that can assume two stable positions; and triggering means comprising a pusher (18) capable of causing, at the end of the piston stroke, a sudden change in the position of the switching means, under the action of an elastic means (E), for inversion of the race. The elastic means (E) is integral, at each of its ends, with a hinge member (20a, 20b) received respectively in a housing (21, 22 ...

ADDITIONAL SECTION OF PUSH

L'invention concerne un ensemble de distribution d'un appareil hydraulique à pistons radiaux, ledit appareil comprenant un bloc cylindres engageable sur un arbre par translation, ledit ensemble comprenant : - Un distributeur, en contact avec ledit bloc cylindres, - Un couvercle de distribution, - Une première et une deuxième chambres définies respectivement par un premier et un deuxième volumes situés à l'interface entre ledit distributeur et ledit couvercle de distribution, et destinées aux fluides sous pression permettant la conversion mécanique-pression, ledit ensemble étant caractérisée en ce qu'il comprend une section additionnelle définie par un troisième volume situé à l'interface entre ledit distributeur et ledit couvercle de distribution, ladite section étant destinée à recevoir un fluide sous pression pour permettre l'engagement du bloc cylindres sur l'arbre. The invention relates to a dispensing assembly of a hydraulic device with radial pistons, said apparatus comprising a cylinder block engageable on a shaft by translation, said assembly comprising: - A distributor, in contact with said cylinder block, - A dispensing lid First and second chambers respectively defined by first and second volumes located at the interface between said distributor and said dispensing cover, and intended for pressurized fluids for mechanical-pressure conversion, said assembly being characterized in that it comprises an additional section defined by a third volume located at the interface between said distributor and said dispensing cover, said section being intended to receive a fluid under pressure to allow the engagement of the cylinder block on the shaft.

HYDRAULIC MOTOR OR PUMP WITH ROTATING SOLIDARIZATION MEANS

HYDRAULIC PUMP MOTOR WITH FIXED OR VARIABLE CYLINDREE

Hydraulic motor drive unit of a drilling tool.

L'invention est relative à un groupe moteur comprenant un bâti (1); un arbre rotatif (5), un premier moteur à fluide (2) possédant une came ondulée fixe par rapport audit bâti et un bloc-cylindres solidaire de l'arbre (5); celui-ci étant susceptible d'être entraîné par le premier moteur (2) à au moins une première vitesse de rotation. Selon l'invention: A) l'arbre présente un évidement (6) véhiculant le fluide de forage; B) le bloc-cylindres du premier moteur est coaxial à l'axe de rotation (7) et est disposé autour dudit arbre; C) ce groupe moteur comprend un deuxième moteur (3), attelé en rotation audit arbre et susceptible d'entraîner cet arbre à une deuxième vitesse de rotation sensiblement supérieure à la première vitesse de rotation; D) un premier pignon d'engrenage (56) est solidaire de, et entraîne l'arbre (5) et est coaxial à l'axe de rotation (7); E) le deuxième moteur (3) possède un arbre de sortie (64), solidaire d'un deuxième pignon (57) qui engrène avec le premier pignon (56). Une application est la réalisation d'un ensemble de forage performant. The invention relates to a motor unit comprising a frame (1); a rotary shaft (5), a first fluid motor (2) having a corrugated cam fixed with respect to said frame and a cylinder block integral with the shaft (5); the latter being capable of being driven by the first motor (2) at at least a first speed of rotation. According to the invention: A) the shaft has a recess (6) conveying the drilling fluid; B) the cylinder block of the first engine is coaxial with the axis of rotation (7) and is arranged around said shaft; C) this motor unit comprises a second motor (3), coupled in rotation to said shaft and capable of driving this shaft at a second speed of rotation substantially greater than the first speed of rotation; D) a first gear pinion (56) is integral with and drives the shaft (5) and is coaxial with the axis of rotation (7); E) the second motor (3) has an ...

DEVICE FOR DIVIDING OR METING FLUID FLOW

HYDROMECHANICAL WHEEL DRIVE MECHANISM IN PARTICULAR FOR DRIVING THE WHEELS OF A PUBLIC WORKS VEHICLE.

HYDRAULIC MOTOR WITH STAGE RADIAL CYLINDERS

Le moteur hydraulique comprend un bloc-cylindres (6) ayant des cylindres radiaux étagés comprenant deux chambres (8A, 8B), un organe de réaction (4) et un distributeur de fluide (16). Chaque cylindre étagé peut être relié à un orifice de communication (28) pouvant communiquer avec un orifice de distribution (18A, 19A), chaque conduit de cylindre comprenant un premier et un deuxième tronçon (24A, 24B) respectivement reliés en permanence à la première et la deuxième chambre de travail du cylindre (8A, 8B). Ce moteur comprend un sélecteur de cylindrée (30) qui peut être déplacé entre une première position dans laquelle les premier et deuxième tronçons des conduits de cylindre (24A, 24B) sont reliés à un orifice de communication (28) et une deuxième position dans laquelle le premier tronçon (24A) est relié à un orifice de communication (28) et est isolé du deuxième tronçon (24B) et de la deuxième chambre de travail (8B). The hydraulic motor comprises a cylinder block (6) having stepped radial cylinders comprising two chambers (8A, 8B), a reaction member (4) and a fluid distributor (16). Each stepped cylinder can be connected to a communication orifice (28) which can communicate with a distribution orifice (18A, 19A), each cylinder conduit comprising a first and a second section (24A, 24B) respectively permanently connected to the first and the second cylinder working chamber (8A, 8B). This motor comprises a displacement selector (30) which can be moved between a first position in which the first and second sections of the cylinder ducts (24A, 24B) are connected to a communication orifice (28) and a second position in which the first section (24A) is connected to a communication orifice (28) and is isolated from the second section (24B) and from the second working chamber (8B).

HYDRAULIC PUMP MOTOR WITH FIXED OR VARIABLE CYLINDREE

Le moteur-pompe hydraulique (1) à cylindrée fixe ou variable comprend un rotor central de moteur-pompe (3) dans lequel et aménagé un cylindre hydraulique (14), ledit rotor (3) étant en contact étanche avec un distributeur d'entrée-sortie (43) reliant ledit cylindre (14) avec un bâti de moteur-pompe (2) tandis qu'un piston hydraulique (13) se meut dans ledit cylindre (14) pour pousser au moyen d'un poussoir guidé de piston hydraulique (18), d'un bras tangentiel (22) articulé dans ledit rotor central (3), et d'un rouleau antifriction de bras tangentiel (28) sur un rotor périphérique de moteur-pompe (29) synchronisé en rotation avec le rotor central de moteur-pompe (3).

HYDRAULIC MECHANISM WITH MEANS FOR GUIDING PISTON TRANSLATION

Mécanisme hydraulique, moteur ou pompe, comprenant une came ; un bloc-cylindres monté rotatif par rapport à la came ; au moins un cylindre (110i, 110e) ménagé dans ce bloc-cylindres ; au moins un ensemble piston apte à coopérer avec un cylindre (110i, 110e), cet ensemble piston comprenant un piston (111i, 111e) monté à coulissement à l'intérieur dudit cylindre (110i, 110e) ; un rouleau (123) monté rotatif sur le piston (111i, 111e) et configuré pour coopérer avec la came, le rouleau (123) étant délimité par deux faces transversales d'extrémité ; des première et deuxième pièces de calage (129) disposées chacune entre une face d'extrémité du rouleau (123) et la face interne du cylindre (110i, 110e) sur laquelle ladite pièce de calage (129) prend appui de manière à maintenir la position axiale du rouleau (123) ; le cylindre (110i, 110e) comporte une rainure (131) pratiquée dans sa face interne, et l'ensemble piston comporte une projection (136) configurée pour coopérer avec la rainure (131) du cylindre (110i, 110e) de manière à maintenir l'orientation du rouleau (123). Hydraulic mechanism, motor or pump, comprising a cam; a cylinder block rotatably mounted relative to the cam; at least one cylinder (110i, 110e) formed in this cylinder block; at least one piston assembly adapted to cooperate with a cylinder (110i, 110e), said piston assembly comprising a piston (111i, 111e) slidably mounted inside said cylinder (110i, 110e); a roller (123) rotatably mounted on the piston (111i, 111e) and configured to cooperate with the cam, the roller (123) being delimited by two transverse end faces; first and second wedging pieces (129) each disposed between an end face of the roll (123) and the inner face of the roll (110i, 110e) on which said wedge piece (129) bears so as to maintain the axial position of the roll (123); the cylinder (110i, 110e) has a groove (131) formed in its inner face, and the piston assembly has a projection (136) configured to cooperate ...

HANDPIECE FOR PERSONAL HYGIENE, ESPECIALLY FOR ORAL AND DENTAL HYGIENE

L'invention se rapporte à une pièce à main comprenant un boîtier-poignée comportant un moteur à piston hydraulique qui entraîne selon un mouvement alternatif un porte-instrument, une pompe pour l'alimentation du moteur hydraulique, une soupape de marche-arrêt, et des instruments de traitement. Elle est caractérisée en ce que le piston 17 du moteur hydraulique est en forme d'arc de cercle et est solidaire d'un arbre 13 monté dans le boîtier et tournant autour de son axe longitudinal, l'axe de rotation de l'arbre traversant le centre du cercle délimité par l'axe longitudinal arqué du piston et étant perpendiculaire au plan de ce cercle et que le piston est soumis à l'action d'un ressort de rappel 54. L'invention s'applique particulièrement aux appareils pour hygiène buccale avec brosses à dents et buses de giclage.

DISTRIBUTOR DISTORTER FOR HYDRAULIC PUMP ENGINE

DRIVE MECHANISM, ESPECIALLY FOR PROPELLING A TRACTOR

DEVICE FOR MUTUAL IMMOBILIZATION OF TWO RELATIVE ROTATING ELEMENTS

L'invention est relative à un dispositif d'immobilisation mutuelle de deux éléments montés à rotation relative 10, tels que le rotor 11 et le stator 1-3-5-7 d'un moteur hydraulique, comprenant un organe d'immobilisation 33 mobile en translation 37-14 sur un premier élément 11; un premier moyen d'immobilisation 41 attelé audit organe d'immobilisation 33; un deuxième moyen d'immobilisation 43 attelé au deuxième élément 1-3-5-7 et disposé en regard du premier moyen d'immobilisation; et un dispositif de réglage 38-39 de la position dudit organe d'immobilisation 33, comprenant un piston 33 monté coulissant à l'intérieur d'un cylindre et y définissant une chambre de défreinage 38 susceptible d'être alimentée en fluide sous pression. Selon l'invention, l'un 41 des premier et deuxième moyens d'immobilisation est constitué par un ergot d'immobilisation 41 solidaire de l'élément correspondant 11, l'autre moyen d'immobilisation 43 étant constitué par un logement de réception dudit ergot d'immobilisation, cependant que l'organe d'immobilisation et le piston 33 constituent un ensemble monobloc. Une application est la réalisation d'un dispositif d'immobilisation axialement compact et simple. The invention relates to a device for mutual immobilization of two elements mounted in relative rotation 10, such as the rotor 11 and the stator 1-3-5-7 of a hydraulic motor, comprising a movable immobilization member 33. in translation 37-14 on a first element 11; a first immobilization means 41 coupled to said immobilization member 33; a second immobilization means 43 coupled to the second element 1-3-5-7 and disposed opposite the first immobilization means; and a device 38-39 for adjusting the position of said immobilizing member 33, comprising a piston 33 slidably mounted inside a cylinder and defining therein a brake release chamber 38 capable of being supplied with pressurized fluid. ...

Variable power converter

PRESSURE ACCUMULATOR

Le moteur-pompe hydraulique (1) à cylindrée fixe ou variable comprend un rotor central de moteur-pompe (3) dans lequel et aménagé un cylindre hydraulique (14), ledit rotor (3) étant en contact étanche avec un distributeur d'entrée-sortie (43) reliant ledit cylindre (14) avec un bâti de moteur-pompe (2) tandis qu'un piston hydraulique (13) se meut dans ledit cylindre (14) pour pousser au moyen d'un poussoir guidé de piston hydraulique (18), d'un bras tangentiel (22) articulé dans ledit rotor central (3), et d'un rouleau antifriction de bras tangentiel (28) sur un rotor périphérique de moteur-pompe (29) synchronisé en rotation avec le rotor central de moteur-pompe (3). The hydraulic motor-pump (1) with fixed or variable displacement comprises a central motor-pump rotor (3) in which and arranged a hydraulic cylinder (14), said rotor (3) being in sealing contact with an inlet distributor outlet (43) connecting said cylinder (14) with a motor-pump frame (2) while a hydraulic piston (13) moves in said cylinder (14) to push by means of a hydraulic piston guided pusher (18), a tangential arm (22) articulated in said central rotor (3), and a tangential arm anti-friction roller (28) on a motor-pump peripheral rotor (29) synchronized in rotation with the rotor central motor-pump (3).

HYDRAULIC APPARATUS HAVING AN IMPROVED STRUCTURE FOR CYLINDREE

La présente invention concerne un appareil hydraulique (1), comprenant : - un carter (6) définissant un premier ensemble, - un arbre (2) définissant un second ensemble, lesdits premier et second ensembles étant libres en rotation l'un par rapport à l'autre, - une came (3) multilobes, - un bloc cylindres (4) monté libre en rotation par rapport auxdits premier et second ensembles, et comprenant une pluralité de cylindres (41) dans lesquels sont disposés des pistons (42), caractérisé en ce que - ledit appareil (1) comprend des ressorts (43) d'appui disposés dans lesdits cylindres (41) de manière à maintenir les pistons (42) en appui contre la came (3), - la came (3) multilobes est liée en rotation à l'un desdits premier ou second ensembles, et ledit appareil (1) comprend en outre un actionneur (7) adapté pour, de manière sélective, immobiliser le bloc cylindres (4) par rapport à l'autre desdits premier ou second ensembles. The present invention relates to a hydraulic apparatus (1), comprising: - a casing (6) defining a first set, - a shaft (2) defining a second set, said first and second sets being free to rotate relative to each other; the other, - a cam (3) multilobe, - a cylinder block (4) rotatably mounted relative to said first and second sets, and comprising a plurality of cylinders (41) in which are disposed pistons (42), characterized in that - said apparatus (1) comprises bearing springs (43) arranged in said cylinders (41) so as to keep the pistons (42) bearing against the cam (3), - the cam (3) multilobe is rotatably connected to one of said first or second sets, and said apparatus (1) further comprises an actuator (7) adapted to selectively immobilize the cylinder block (4) relative to the other of said first or second sets.

HYDRAULIC TRANSMISSION CIRCUIT WITH MULTIPLE CYLINDER

HYDRAULIC PERCUSSION APPARATUS

A.APPAREIL DE PERCUSSION HYDRAULIQUE COMPRENANT UN CORPS 4 DANS LEQUEL SE MEUT UN PISTONPERCUTEUR 1 AVEC UN MOUVEMENT ALTERNATIF POUR FRAPPER UN OUTIL T RETENU DE MANIERE LIBERABLE DANS L'EXTREMITE AVANT DU CORPS, QUI COMPREND UNE CHAMBRE DE PRESSION MOTRICE 5 ET UNE CHAMBRE DE PRESSION DE RETOUR 6. B.IL COMPREND EN OUTRE UN CANAL 13 QUI EST OBTURE LORS DU MOUVEMENT ALTERNATIF NORMAL DU PISTONPERCUTEUR 1 MAIS QUI, S'IL SE PRODUIT UNE COURSE ALTERNATIVE DE CE DERNIER DANS LE SENS AVANT, RELIE ENTRE ELLES LES CHAMBRES 5, 6, DE SORTE QUE, MEME SI LA CHAMBRE 5 EST ALORS RACCORDEE A LA LIGNE D'ECHAPPEMENT, L'ECOULEMENT HYDRAULIQUE RESULTANT DANS LE CANAL 13 ASSURE UNE PRESSION SUFFISANTE DE LA CHAMBRE 5 POUR APPLIQUER AU PISTONPERCUTEUR 1 UNE FORCE SUFFISANTE POUR LE MAINTENIR DANS UNE POSITION AVANCEE POUR QUE SON MOUVEMENT ALTERNATIF S'ARRETE. C.APPLICATION : MARTEAU PERFORATEUR, MARTEAU PIQUEUR, ETC. A. HYDRAULIC PERCUSSION DEVICE INCLUDING A BODY 4 IN WHICH A PISTON PISTON PERCUSSION 1 IS MOVED WITH AN ALTERNATIVE MOVEMENT TO IMPACT A TOOL T RETAINED FREELY IN THE FRONT END OF THE BODY, WHICH INCLUDES A PRESSURE CHAMBER AND A MOTOR CHAMBER 5 RETURN PRESSURE 6. B. IT ALSO INCLUDES A CHANNEL 13 WHICH IS OBSTRUCTED DURING THE NORMAL ALTERNATIVE MOVEMENT OF PISTON PISTON 1 BUT WHICH, IF AN ALTERNATIVE STROKE OF THIS OCCURS IN THE FORWARD DIRECTION, CONNECTED BETWEEN THE CHAMBERS 5 , 6, SO THAT, EVEN IF CHAMBER 5 IS THEN CONNECTED TO THE EXHAUST LINE, THE HYDRAULIC FLOW RESULTING IN CHANNEL 13 PROVIDES SUFFICIENT PRESSURE IN CHAMBER 5 TO APPLY TO PISTON PISTON 1 SUFFICIENT FORCE TO MAINTAIN IN AN ADVANCED POSITION SO THAT ITS ALTERNATIVE MOVEMENT IS STOPPED. C. APPLICATION: PUNCHING HAMMER, PICKING HAMMER, ETC.

VOLUMETRIC MEASURING AND DOSING DEVICE FOR FLUIDS

HYDROSTATIC ASSEMBLY WITH CONTROLLED SKATING

Hydraulic rotating machinery

液压旋转机械(100)包括：多个活塞(6)；缸体(2)，其用于收纳活塞(6)；轴(1)，其贯穿缸体(2)；斜盘(11)，其用于使活塞(6)往复运动，以使缸孔(2b)的容积室扩大、缩小；壳体(3)，其用于收纳缸体(2)；前盖(4)，其用于堵塞壳体(3)的开口端；延伸部(4b)，其形成于前盖(4)，沿着轴(1)向缸体(2)侧延伸；以及第1滑动轴承(20)，其设在延伸部(4b)与缸体(2)之间。第1滑动轴承(20)利用销构件(21)固定于延伸部(4b)或缸体(2)。

HYDRAULIC APPARATUS HAVING AN IMPROVED STRUCTURE FOR ITS CYLINDER INSTALLATION.

Appareil hydraulique (1), comprenant : - un carter (6) définissant un premier ensemble, - un arbre (2) définissant un second ensemble, lesdits premier et second ensembles étant libres en rotation l'un par rapport à l'autre, - une came (3) multilobes liée en rotation à l'un desdits premier ou second ensembles, - un distributeur (51) et un couvercle de distributeur (52) - un bloc cylindres (4) monté libre en rotation par rapport auxdits premier et second ensembles, et comprenant des moyens d'engagement en rotation par rapport à l'autre desdits ensembles, caractérisé en ce que l'appareil hydraulique (1) comprend des moyens de rappel tendant à déplacer le bloc cylindres (4) pour le désengager en rotation desdits premier ou second ensembles, et en ce que le distributeur (5) est configuré pour, lors de l'application d'une pression, engager le bloc cylindres (4) en rotation par rapport à l'autre desdits premier ou second ensembles. Hydraulic apparatus (1), comprising: - a casing (6) defining a first set, - a shaft (2) defining a second set, said first and second sets being free to rotate with respect to each other, - a multilobe cam (3) rotatably connected to one of said first or second sets, - a distributor (51) and a distributor cover (52) - a cylinder block (4) rotatably mounted relative to said first and second assemblies, and comprising means for engaging in rotation with respect to the other of said assemblies, characterized in that the hydraulic apparatus (1) comprises biasing means tending to move the cylinder block (4) to disengage it in rotation said first or second sets, and that the dispenser (5) is configured to engage the cylinder block (4) in rotation with respect to the other one of said first or second sets upon application of pressure.

HYDRAULIC MOTOR WITH RADIAL PISTONS AND CYLINDER CONTROL

Moteur hydraulique (10) à pistons radiaux, avec un bloc-cylindres (12), deux conduits principaux (26,28), un distributeur de fluide (30), une valve de distribution (32) par cylindre, et un système de commande (34) des valves de distribution (32). Le moteur comporte au moins deux moteurs élémentaires, et peut fonctionner dans différents régimes dans lesquels dans chaque moteur élémentaire, chacun des cylindres est relié sur les rampes montantes avec un premier conduit principal et sur les rampes descendantes avec un deuxième conduit principal ; un premier moteur élémentaire étant moteur dans un premier régime, et inactif ou antagoniste dans un deuxième régime, le système de commande pilotant le reste du moteur hydraulique de la même manière dans ces deux régimes. Circuit hydraulique comportant ledit moteur. Procédé de commande d'un tel moteur. Hydraulic motor (10) with radial pistons, with a cylinder block (12), two main ducts (26,28), a fluid distributor (30), a dispensing valve (32) per cylinder, and a control system (34) dispensing valves (32). The engine comprises at least two elementary motors, and can operate in different regimes in which in each elementary engine, each of the cylinders is connected on the ramps with a first main duct and on the descending ramps with a second main duct; a first elementary engine being driven in a first regime, and inactive or antagonistic in a second regime, the control system controlling the rest of the hydraulic motor in the same way in these two regimes. Hydraulic circuit comprising said engine. A method of controlling such a motor.

ENGINE FOR EXTERNAL BRAKE RELIEF SYSTEM, ASSOCIATED SYSTEMS, AND ASSOCIATED METHODS

L'invention propose un moteur hydraulique (100) comprenant un bloc-cylindre (106) et un arbre moteur (120), le bloc cylindre (106) étant configuré pour entrainer en rotation l'arbre moteur (120), ledit arbre moteur (120) comprenant : - une extrémité externe (124) formant l'arbre de sortie de mouvement du moteur (120), - une extrémité interne (126), l'arbre moteur (120) s'étendant selon une direction longitudinale (X), la moteur comprenant un système de freinage hydraulique (200) configuré pour : - autoriser la rotation de l'arbre moteur (120) lorsqu'une pression hydraulique de libération est apportée, et - maintenir l'arbre moteur (120) immobile sinon, le système de freinage (200) comportant un piston de frein (220) situé dans le prolongement de l'extrémité interne (126) de l'arbre (120) et mobile en translation selon la direction longitudinale (X), le moteur (100) étant caractérisé en ce que l'arbre moteur (120) comprend un conduit longitudinal traversant (128) pour accéder au contrôle de la position longitudinale du piston de frein (220). The invention proposes a hydraulic motor (100) comprising a cylinder block (106) and a motor shaft (120), the cylinder block (106) being configured to drive in rotation the motor shaft (120), said motor shaft ( 120) comprising: - an outer end (124) forming the motor output shaft (120), - an inner end (126), the motor shaft (120) extending in a longitudinal direction (X) the engine comprising a hydraulic brake system (200) configured to: - allow rotation of the motor shaft (120) when hydraulic release pressure is provided, and - keep the motor shaft (120) stationary otherwise the braking system (200) comprising a brake piston (220) located in the extension of the inner end (126) of the shaft (120) and movable in translation in the longitudinal direction (X), the motor (100) ) being characterized in that the drive shaft (120) comprises a longitudinal through duct (128) for access control ...

VOLUMETRIC PRESSURE EXCHANGER WITH BOOSTER EFFECT AND INTEGRATED FLOW MEASUREMENT, FOR A SEAWATER DESALINATION PLANT

L'invention comporte au moins une unité d'échange de pression avec un corps cylindrique creux, un piston coulissant dans ledit corps, ledit piston comprenant une tête de piston séparant l'intérieur dudit corps cylindrique en une chambre aval et une chambre amont, ladite chambre aval étant munie d'un dispositif d'admission et de refoulement d'eau à traiter, ladite chambre amont étant munie d'un embiellage distributeur à cinq voies, comprenant, pour équilibrage hydraulique , deux orifices d'alimentation en liquide pressurisé, deux orifices d'évacuation dudit liquide et une ouverture en communication avec ladite chambre amont. The invention comprises at least one pressure exchange unit with a hollow cylindrical body, a piston sliding in said body, said piston comprising a piston head separating the interior of said cylindrical body into a downstream chamber and an upstream chamber, said downstream chamber being provided with an inlet and discharge device for the water to be treated, said upstream chamber being provided with a five-way distributor linkage, comprising, for hydraulic balancing, two pressurized liquid supply ports, two orifices for discharging said liquid and an opening in communication with said upstream chamber.

HYDROMECHANICAL TRAINING GROUP

a) Groupe d'entraînement hydromécanique, b) groupe caractérisé en ce que le support de fond de commande (3) est un support planétaire fixe et les roues planétaires (14) sont logées dans des cavités (3a) du support de fond de commande (3), axialement derrière la surface de commande, et, axialement entre la surface de commande et les cavités (3a) se trouve une paroi (15), le support de fond de commande (3) étant interrompu dans la zone radialement à l'extérieur des cavités (3a) et y étant entouré par la roue creuse (16) de la transmission planétaire. a) Hydro-mechanical drive group, b) group characterized in that the control base support (3) is a fixed planetary support and the planetary wheels (14) are housed in cavities (3a) of the control base support (3), axially behind the control surface, and, axially between the control surface and the cavities (3a) is a wall (15), the control base support (3) being interrupted in the area radially to the 'exterior of the cavities (3a) and being surrounded there by the hollow wheel (16) of the planetary transmission.

HYDRAULIC PUMP MOTOR WITH FIXED OR VARIABLE CYLINDREE

Le moteur-pompe hydraulique (1) à cylindrée fixe ou variable comprend un rotor central de moteur-pompe (3) dans lequel est aménagé un cylindre hydraulique, ledit rotor (3) étant en contact étanche avec un distributeur d'entrée-sortie reliant ledit cylindre avec un bâti de moteur-pompe (2) tandis qu'un piston hydraulique (13) se meut dans ledit cylindre pour pousser au moyen d'un poussoir guidé de piston hydraulique (18), d'un bras tangentiel (22) articulé dans ledit rotor central (3), et d'un rouleau antifriction de bras tangentiel (28) sur un rotor périphérique de moteur-pompe (29) synchronisé en rotation avec le rotor central de moteur-pompe (3). The hydraulic motor-pump (1) with fixed or variable displacement comprises a central motor-pump rotor (3) in which a hydraulic cylinder is arranged, said rotor (3) being in sealing contact with an inlet-outlet distributor connecting said cylinder with a motor-pump frame (2) while a hydraulic piston (13) moves in said cylinder to push by means of a hydraulic piston guided pusher (18), a tangential arm (22) articulated in said central rotor (3), and a tangential arm anti-friction roller (28) on a motor-pump peripheral rotor (29) synchronized in rotation with the motor-pump central rotor (3).

RADIAL PISTON HYDRAULIC MACHINE COMPRISING A NON-SYMMETRIC REVOLUTION CASE

La présente invention concerne Machine hydraulique comprenant un carter (100), une came (200) comportant une pluralité de lobes, un bloc cylindres (300) comportant une pluralité de cylindres (310), des pistons (500) mobiles à translation dans les cylindres (310) et en appui sur les lobes de la came (200), et un ensemble de distribution de fluide en liaison avec les cylindres, la came (200) et le bloc cylindres (310) étant susceptibles de rotation relative autour d'un axe de rotation (O-O), caractérisée en ce que l'enveloppe externe du carter (100) n'est pas symétrique de révolution autour de l'axe de rotation (O-O) et présente une plus petite dimension au regard d'un secteur (110) de la came dépourvu de lobe fonctionnel. The present invention relates to a hydraulic machine comprising a casing (100), a cam (200) comprising a plurality of lobes, a cylinder block (300) comprising a plurality of cylinders (310), pistons (500) movable in translation in the cylinders (310) and resting on the lobes of the cam (200), and a fluid distribution assembly in connection with the cylinders, the cam (200) and the cylinder block (310) being able to rotate relative to one another. rotation axis (OO), characterized in that the outer casing of the casing (100) is not symmetrical about revolution about the axis of rotation (OO) and has a smaller dimension with respect to a sector ( 110) of the cam devoid of functional lobe.

Homokinetic hydraulic receiver

ENGINE FOR EXTERNAL BRAKE RELIEF SYSTEM, ASSOCIATED SYSTEMS, AND ASSOCIATED METHODS

L'invention propose un moteur hydraulique (100) comprenant un bloc-cylindre (106) et un arbre moteur (120), le bloc cylindre (106) étant configuré pour entrainer en rotation l'arbre moteur (120), ledit arbre moteur (120) comprenant : - une extrémité externe (124) formant l'arbre de sortie de mouvement du moteur (120), - une extrémité interne (126), l'arbre moteur (120) s'étendant selon une direction longitudinale (X), la moteur comprenant un système de freinage hydraulique (200) configuré pour : - autoriser la rotation de l'arbre moteur (120) lorsqu'une pression hydraulique de libération est apportée, et - maintenir l'arbre moteur (120) immobile sinon, le système de freinage (200) comportant un piston de frein (220) situé dans le prolongement de l'extrémité interne (126) de l'arbre (120) et mobile en translation selon la direction longitudinale (X), le moteur (100) étant caractérisé en ce que l'arbre moteur (120) comprend un conduit longitudinal traversant (128) pour accéder au contrôle de la position longitudinale du piston de frein (220). The invention proposes a hydraulic motor (100) comprising a cylinder block (106) and a motor shaft (120), the cylinder block (106) being configured to drive in rotation the motor shaft (120), said motor shaft ( 120) comprising: - an outer end (124) forming the motor output shaft (120), - an inner end (126), the motor shaft (120) extending in a longitudinal direction (X) the engine comprising a hydraulic brake system (200) configured to: - allow rotation of the motor shaft (120) when hydraulic release pressure is provided, and - keep the motor shaft (120) stationary otherwise the braking system (200) comprising a brake piston (220) located in the extension of the inner end (126) of the shaft (120) and movable in translation in the longitudinal direction (X), the motor (100) ) being characterized in that the drive shaft (120) comprises a longitudinal through duct (128) for access control ...

Patent FR2357752B1

DEVICE FOR RECOVERING THE BRAKING ENERGY OF ROAD VEHICLES

Dispositif de récupération de l'énergie de freinage des véhicules routiers, comportant : une machine tournante (1) comportant un arbre (2) apte à être relié aux moyens d'entraînement d'un véhicule (V) et pouvant fonctionner soit en pompe hydraulique soit en moteur hydraulique ; un réservoir hydraulique (12) relié par une première canalisation (11) à de la machine tournante (1), et un accumulateur hydropneumatique (21/22/24) relié par une deuxième canalisation (20) à un la machine tournante (1), dans lequel ladite machine tournante (1) comporte une pluralité de pistons dont la course est variable et un organe de réglage de course des pistons actionnable par commande hydraulique de façon à pouvoir occuper soit une position neutre pour laquelle la course des pistons est nulle et la circulation du liquide hydraulique à travers la machine tournante est nulle, soit des positions actives pour lesquelles les pistons ont une course positive et la circulation du liquide hydraulique s'effectue. Device for recovering the braking energy of road vehicles, comprising: a rotary machine (1) comprising a shaft (2) adapted to be connected to the drive means of a vehicle (V) and able to operate either as a hydraulic pump either in hydraulic motor; a hydraulic reservoir (12) connected by a first pipe (11) to the rotary machine (1), and a hydropneumatic accumulator (21/22/24) connected by a second pipe (20) to a rotating machine (1) , wherein said rotating machine (1) comprises a plurality of pistons whose stroke is variable and a piston stroke adjusting member operable hydraulically so as to occupy a neutral position for which the piston stroke is zero and the circulation of the hydraulic fluid through the rotating machine is zero, or active positions for which the pistons have a positive stroke and the flow of hydraulic fluid is effected.

Patent FR2163136A5

Set of two engines with fluid under pressure.

L'invention est relative à un ensemble de deux moteurs à fluide sous pression (1, 2) alimentés en parallèle par un même circuit d'alimentation, chaque moteur à fluide sous pression comportant: un carter (4A-4B-3,38A-38B-3); un bloc-cylindres (13, 45) monté à rotation autour d'un axe (9) par rapport à une came (7, 40) solidaire du carter et, muni d'une face de communication (15, 47) perpendiculaire à l'axe (9); un distributeur de fluide (23, 55) solidaire de la came, muni d'une face de distribution (26, 58) perpendiculaire à l'axe (9) et en appui sur la face de communication (15, 47) par l'intermédiaire d'un dispositif de poussée axiale; et, des conduits de distribution débouchant dans la face de distribution, ménagés dans le distributeur interne de fluide de chaque moteur; les carters (3) des deux moteurs étant solidaires l'un de l'autre. Selon l'invention, les dispositifs de poussée axiale des distributeurs internes de fluide sont constitués par un dispositif unique de poussée axiale (29-61, 30-62) disposé entre ces distributeurs internes de fluide. Une application est la réalisation d'un pont hydrostatique d'un chariot élévateur. The invention relates to a set of two pressurized fluid motors (1, 2) supplied in parallel by the same supply circuit, each pressurized fluid motor comprising: a casing (4A-4B-3,38A- 38B-3); a cylinder block (13, 45) mounted to rotate about an axis (9) relative to a cam (7, 40) integral with the housing and, provided with a communication face (15, 47) perpendicular to the 'axis (9); a fluid distributor (23, 55) integral with the cam, provided with a distribution face (26, 58) perpendicular to the axis (9) and resting on the communication face (15, 47) by the intermediary of an axial thrust device; and, distribution ducts opening into the distribution face, formed in the internal fluid distributor of each engine; the housings (3) of the two motors being integral with one another. ...

HYDRAULIC DEVICE COMPRISING FASTENING MEANS FOR TRANSMITTING A HIGH TORQUE

REINFORCED AUTOMOTIVE VEHICLE STRUCTURE

L'invention concerne une structure de véhicule automobile (10) comprenant un compartiment avant (12) présentant des parois latérales (17, 19), et un habitacle (14) séparé dudit compartiment avant par un tablier (16), ledit tablier (16) présentant une traverse rigide (18), ladite structure (10) comprenant deux supports d'éléments de suspension en cloche (24, 26) respectivement adjacents auxdites parois latérales (17, 19), lesdits supports d'éléments de suspension en cloche (24, 26) présentant chacun une face intérieure (28, 30), ladite structure (10) comprenant en outre des entretoises (32, 34) s'étendant respectivement entre lesdits supports d'éléments de suspension en cloche (26, 24) et ladite traverse rigide (18). Lesdites entretoises (32, 34) sont respectivement ancrées dans les faces intérieures (28, 30) desdits deux supports d'éléments de suspension en cloche (26, 24). The invention relates to a motor vehicle structure (10) comprising a front compartment (12) having side walls (17, 19), and a passenger compartment (14) separated from said front compartment by an apron (16), said deck (16). ) having a rigid cross member (18), said structure (10) comprising two bell-shaped suspension element supports (24, 26) respectively adjacent to said side walls (17, 19), said bell-shaped suspension element supports ( 24, 26) each having an inner face (28, 30), said structure (10) further comprising spacers (32, 34) extending respectively between said bell-shaped suspension member supports (26, 24) and said rigid cross member (18). Said spacers (32, 34) are respectively anchored in the inner faces (28, 30) of said two bell-shaped suspension element supports (26, 24).

VOLUMETRIC MEASURING AND DOSING DEVICE FOR FLUIDS

DISPOSITIF MESUREUR-DOSEUR POUR FLUIDES, PERMETTANT DE DOSER UN FLUIDE SECONDAIRE DANS UN FLUIDE PRINCIPAL, COMPRENANT UN CORPS 1 DANS LEQUEL EST AMENAGEE UNE CANALISATION 20 POUR LA CIRCULATION D'UN FLUIDE PRINCIPAL, PRESENTANT UN ORIFICE D'ENTREE 22 DU FLUIDE ET DES LUMIERES DE DISTRIBUTION 23 DU FLUIDE QUI DEBOUCHENT DANS UNE CHAMBRE 3 CYLINDRIQUE DELIMITEE PAR UN CARTER 2, LA CHAMBRE 3 CONTENANT DES MOYENS 39, 16, 19, 27, 28, 30 POUR ENTRAINER UNE POMPE 36 DU FLUIDE SECONDAIRE QUI COMPRENNENT TROIS PISTONS 30 MONTES SUR DES TIGES 16 RADIALES ARTICULEES SUR UN BRAS 15 D'UNE MANIVELLE 39 ADAPTE POUR ENTRAINER EN TRANSLATION ALTERNATIVE UN PISTON DOSEUR 35 DE LA POMPE 36, CHAQUE PISTON 30 POUVANT COULISSER DANS UN CYLINDRE 28, MONTE OSCILLANT AUTOUR D'UN AXE 40. CE MESUREUR-DOSEUR DEBITE L'ADDITIF PROPORTIONNELLEMENT AU DEBIT DU FLUIDE PRINCIPAL EN SYNCHRONISME AVEC LA MANIVELLE 39 ET EN NE FAISANT APPEL A AUCUN RESSORT.

Patent FR2160120A5

Improvements to hydraulic cylinder motors

HYDRAULIC MACHINE WITH RADIAL PISTONS WITH HARMONIC DISTRIBUTION

La machine hydraulique comprend une came (4) et un bloc-cylindres avec des pistons (14) coopérant avec les lobes de la came, lesquels ont chacun deux rampes (50A, 50B) s'étendant entre des arcs de point mort haut et bas (PH, PB). Les cylindres sont alternativement reliés à une alimentation et à un échappement, selon les séquences séparées par des phases de commutation comprenant une phase d'isolement par rapport aux conduits principaux d'alimentation et d'échappement. La position angulaire de début ou de fin d'au moins une première phase d'isolement par rapport à l'arc de point mort correspondant est différente de la position angulaire de début ou de fin d'au moins une deuxième phase d'isolement par rapport à son arc de point mort correspondant, ces arcs de point mort étant tous les deux des arcs de point mort haut ou bas. The hydraulic machine comprises a cam (4) and a cylinder block with pistons (14) cooperating with the lobes of the cam, which each have two ramps (50A, 50B) extending between high and low dead center arcs. (PH, PB). The cylinders are alternately connected to a supply and an exhaust, according to the sequences separated by switching phases comprising an isolation phase with respect to the main supply and exhaust ducts. The starting or ending angular position of at least a first isolation phase relative to the corresponding dead center arc is different from the starting or ending angular position of at least a second isolation phase. relative to its corresponding neutral point arc, these dead center arcs being both top or bottom dead center arcs.

Improvements to hydraulic motors