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9038527 |
Fluid pressure cylinder
In a fluid pressure cylinder, a piston is displaced in an axial direction under the action of a pressure fluid. A circular protrusion, which projects toward the piston along an axial direction of... |
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9038526 |
Kinematic control in a hydraulic system
A hydraulic system is provided, having a pump, operably connected to a motor. It also comprises a controller-driven hydraulic actuator, operably connected to the pump and a hydraulic valve,... |
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9032986 |
Volume booster with variable asymmetry
A volume booster for a fluid flow control device comprises a supply path for supplying a fluid boost to facilitate actuation of an actuator in a first direction, and an exhaust path for enabling... |
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9032863 |
Cam follower roller device, notably for a fuel injection pump
Cam follower roller device, notably for an internal combustion engine fuel injection pump, comprising a tappet (12) and a roller (14) mounted to rotate on the tappet and intended to press against... |
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9032861 |
Arrangement for providing a variable throttle cross-section for a fluid flow
An arrangement for providing a throttle cross-section for a fluid flow. The throttle cross-section can be varied depending on a pressure difference present across the throttle cross-section. The... |
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9027340 |
Brake booster for an automotive brake system and corresponding automotive brake system
A brake booster with regenerative brake force generation comprising a force input element coupled to a brake pedal. A chamber arrangement having a vacuum chamber and a working chamber that are... |
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9027459 |
Reciprocating piston compressor with delivery rate control
In a reciprocating piston compressor with delivery rate control, the electromagnetic actuating device (3) of the valve lifter (2) has a separate positioning drive (10) for adjusting the working... |
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9027589 |
Hydraulic valve with pressure limiter
An assembly of valve sections includes an inlet section, an outlet section, a working section, and a working section. The working section is a conventional pressure compensated working section.... |
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9021799 |
Hydraulic motor assembly
A hydraulic motor assembly capable of precise control having a housing, a hydraulic mounting surface located in the housing, a cylinder block rotatably disposed on the hydraulic mounting surface,... |
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9021796 |
Pipelayer
A pipelayer includes a pilot pressure control unit. The pilot pressure control unit supplies hydraulic fluid to a pilot port of a warm-up control valve so that the warm-up control valve enters an... |
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9021936 |
Ventless actuator lock
An actuator includes a cylinder and a piston disposed in the cylinder. The piston has a head and a rod. The actuator further includes a collapsible locking member disposed in the head of the... |
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9016806 |
Brake actuating unit for actuating a motor vehicle braking system of the “brake-by-wire” type, and method for operating a motor vehicle braking system by means of such a brake actuating unit
A brake actuating unit for actuating a motor vehicle braking system of the “brake-by-wire” type having a brake booster. In order to provide a brake actuating unit for actuating a motor vehicle... |
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9010234 |
Hydraulic cylinder with piston valve assembly
A hydraulic cylinder includes a cylinder assembly having a cylinder, defining an inner hydraulic chamber and being for reciprocating receipt of a piston and piston rod therein; a piston rod... |
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9010104 |
Fluid-working machine valve timing
A fluid-working machine has a working chamber of cyclically varying volume, high and low pressure manifolds, and high and low pressure valves for regulating the flow of fluid between the working... |
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9011109 |
Variable Capacity Compressor
In a swash plate type variable capacity compressor that changes a stroke of a piston by controlling the pressure of a crank chamber (6), lubrication oil contained in refrigerant gas is maximally... |
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9004444 |
Device for the hydropneumatic control of a valve with a pneumatic locking means
Valve control device includes a body with a longitudinal axis, a control member housed at least partially in the body in a bottom portion along the longitudinal axis, a piston movable along the... |
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9003950 |
Air motor having a programmable logic controller interface and a method of retrofitting an air motor
A pump assembly having an air motor includes a valve connected to a motive fluid inlet of the air motor. The valve shifts between a first position, in which a flow of motive fluid is directed into... |
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9003786 |
Pressure limiting in hydraulic systems
This disclosure provides for pressure limiting a hydraulic system to a desired pressure value by a particular circuit by controlling and closing the compensator when the desired pressure setting... |
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9003956 |
Fluid cylinder mechanism
A fluid cylinder mechanism (1) equipped with a cylinder (10) having a base end (12) and an open end (11), and a piston (20) having a flange portion (21) disposed inside the cylinder and a rod... |
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9003949 |
Automatic pneumatic valve reset system
A cup for an air valve assembly in a positive displacement pneumatic motor includes a cup body, a gas cavity, and a first pilot slot. The cup body is rectilinear and has a sliding face as one... |
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9003951 |
Hydraulic system with bi-directional regeneration
A hydraulic actuator system including an actuator and a valve assembly configured for bi-directional regeneration. The actuator may include a hollow body and a rod disposed within and extending... |
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9004338 |
Adjustable dose chamber
A compressible fluid powered device includes a dose chamber. An inlet supplies pressurized fluid to the dose chamber. An outlet for releases pressurized fluid from the dose chamber. A moveable... |
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8997626 |
Electro-hydraulic actuator including a release valve assembly
A manual release valve is provided for a electro-hydraulic actuator of the type including a piston movable in a cylinder and defining a piston side chamber and a rod side chamber, the valve... |
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8997479 |
Hydraulic control system having energy recovery
A hydraulic control system is disclosed for use with a machine. The hydraulic control system may have a pump, a tank, and an actuator. The hydraulic control system may also have at least a first... |
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8997627 |
Thermal engine with an improved valve system
A radial thermal engine with an improved valve system is disclosed herein comprising intake and exhaust port valve assemblies fluidly connected to respective intake and exhaust ports contained... |
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8997624 |
Jet pipe servo with flexure pivot
A servomechanism has a jet pipe mounted by a flexure pivot driven by an electromagnet to control the position of the jet pipe. A fixed seal tube surrounds the armature and keeps the coil isolated... |
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8997625 |
Hydraulic feed-rate control apparatus
A hydraulic feed-rate control apparatus pushes out a fluid by a main piston to a reservoir chamber via feed-rate adjustment mechanisms and flow passages and adjusts a feed rate of a reciprocating... |
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8999427 |
Process and apparatus for impregnating a product obtained by cutting a continuous web
The invention relates to a method for the impregnation of a product consisting of fibrous material and formed from a continuous web (22), the method comprising at least one first step of cutting... |
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8997475 |
Compressor and expander device with pressure vessel divider baffle and piston
An apparatus can include a pressure vessel that defines an interior region that can contain a liquid and/or a gas. A piston is movably disposed within the interior region of the pressure vessel. A... |
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8996263 |
Controller for variable transmission
An electronic controller for a variable ratio transmission and an electronically controllable variable ratio transmission including a variator or other CVT are described herein. The electronic... |
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8978701 |
Energy-saving valve
An energy-saving valve includes a spool-driving unit which changes the position of a spool to a position at which compressed air is discharged from a first output port without pressure control and... |
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8967034 |
Apparatus driven by compressed air and equipped with dual piston function for use in body construction in the automotive industry
The invention relates to an energy-efficient apparatus driven by compressed air and equipped with a dual piston function for tensioning, or clamping, or centering, or punching, or welding, or... |
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8967035 |
Sensor coupler for piston-cylinder assembly
A sensor coupler adapted to operatively connect a sensor to a piston-cylinder assembly. The sensor coupler includes a first end member and a second end member. The first end member is disposed on... |
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8972124 |
Work vehicle
A work vehicle includes an engine, an idling stop execution portion, a determination portion, a counting portion, and an idling stop time period adjustment portion. The engine can rotate in a... |
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8960228 |
Rotary control valve
A control valve comprises a first spool 22, a second spool 24 encircling at least part of the first spool 22 and angularly moveable relative thereto, and a sleeve 32 encircling at least part of... |
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8959906 |
Gas boosters
One or more examples of the gas boosters described herein aim to provide a light weight gas booster configured to produce high output pressure levels at high volumes. Generally described, one or... |
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8955653 |
Methods and apparatus for controlling a fluid damper
A method and apparatus for a fluid damper comprising a first fluid-filled chamber, a second chamber filled with a fluid having variable flow characteristics and at least partially displaceable by... |
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8955423 |
Pneumatic brake booster
A tandem-type pneumatic brake booster, in particular for hydraulic vehicle brake systems, having a housing comprising a first and a second housing half shell, the interior of which is divided with... |
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8956379 |
Medical oscillating compliance devices and uses thereof
The present invention relates to devices and systems that alter intracranial compliance, cerebral blood flow and/or intracranial pressure pulsatility/waveform by oscillating the contraction and... |
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8955640 |
Integral power steering apparatus
In a stroke-limiter equipped integral power steering apparatus, a valve body of a spring-loaded-plunger-equipped limiter valve is configured to enable a position of the valve body relative to a... |
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8944371 |
Transmission of a control force
A control force transmission arrangement for an aircraft is provided. A transmission device has a first and a second force transmission point, and a coupling unit disposed between them. The... |
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8944157 |
Hydro pneumatic lifting system and method
The disclosed invention introduces an efficient lifting mechanism for reciprocating vertically a load system, the load consisting of the aggregate weights of a cargo payload in conjunction with... |
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8943949 |
Neutral setting apparatus of an adjustable hydraulic machine
The invention relates to a neutral setting apparatus for adjustable hydraulic machines, in particular the adjustment of the neutral position of a servo valve. In particular, the invention relates... |
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8939063 |
Hydraulic engine with infinity drive
A system comprises a first piston comprising a first piston shaft and a first drive pin. A first piston cylinder comprises a first body and a first groove, wherein the first groove defines a first... |
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8939062 |
Double-acting hydraulic cylinder with integrated gas spring action and method for making the same
The invention relates to a method for constructing a gas-filled double-acting hydraulic cylinder (1) with gas spring action, comprising: —a cylinder sleeve (3) with a cylinder bottom (3a) and... |
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8939061 |
Method and device for indicating the position of hydraulically armatures
Method of indicating the position of a hydraulically actuated armature, comprising an adjust cylinder for actuating the armature, connected by at least one pressure medium line to an adjustment... |
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8938956 |
Method of operating an energy recovery cylinder
The present invention relates to an implement, in particular an excavator or machine for material handling, with an element movable via at least one working drive, wherein at least one energy... |
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8938339 |
Method for activating a unit of a transmission
A method of actuating an assembly of a transmission, with which are associated a plurality of actuators with whose help the assembly can in principle be actuated, such that out of the actuators... |
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8931514 |
Liquid flow rate control valve
A liquid flow rate control valve is provided in which since a total area of overlapping sections of a communication hole group (38c, 38d) of a distributor (38) and an outlet opening (37a, 37b) of... |
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8925584 |
Dampened hydraulic pilot control arrangement for a spool valve
A hydraulic pilot control arrangement for a spool valve is provided, wherein the spool of the spool valve is biased towards a central position. The arrangement includes a first and a second pilot... |