Matches 1 - 50 out of 114 1 2 3 >


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US20130256454 RAM AIR TURBINE PUMP LEAKAGE CONTROL  
An example ram air turbine drive shaft assembly includes a drive shaft that rotates about an axis to drive a hydraulic pump and a generator. The drive shaft has an interruption that redirects a...
US20120073283 HYDRAULIC CONTINUOUSLY VARIABLE TRANSMISSION STRUCTURE FOR AUTOMOBILE AND AUTOMOBILE HAVING THE SAME  
The present invention provides a hydraulic continuously variable transmission structure for an automobile comprising an oil tank, a tee joint, a hydraulic pump, an automobile speed regulation...
US20110067393 Aircraft emergency and backup secondary power apparatus  
In combination, an aircraft and a rotatively combined electrical power/generator and hydraulic motor/pump configured to provide either hydraulic power from electrical power, or electrical power...
US20130168987 POWERED ROLL-IN COTS  
According to one embodiment, a roll-in cot may include a support frame, a pair of front legs, a pair of back legs, and a cot actuation system. The pair of front legs may be slidingly coupled to...
US20100313557 HYDRAULIC SYSTEM FOR CONSTRUCTION EQUIPMENT HAVING FLOAT FUNCTION  
A hydraulic system for construction equipment having a float function is provided, which can perform ground leveling as making a boom descend due to its own weight without using hydraulic fluid...
US20140182279 SHOVEL AND METHOD OF CONTROLLING SHOVEL  
A shovel includes a plurality of hydraulic actuators including a first hydraulic actuator and a second hydraulic actuator, a main pump, a hydraulic pump-motor configured to function as a hydraulic...
US20100050624 HYDROSTATIC TRAVEL DRIVE HAVING TWO HYDRAULIC MOTORS  
The invention relates to a hydrostatic drive having one hydraulic pump unit (3) and at least one first hydraulic motor unit (14) and a second hydraulic motor unit (15). The first hydraulic motor...
US20140245729 HYDRAULIC CONTROL DEVICE AND OPERATING MACHINE HAVING THE SAME  
A hydraulic control device includes: a recovery oil passage; a regenerative motor that rotates an output shaft of an engine in response to a supply of the hydraulic fluid and is driven to rotate...
US20080087015 Hydrostatic Travel Drive with Differential Locking Action  
The invention relates to a hydrostatic drive (1) comprising at least one first hydraulic pump (4), a second hydraulic pump (5), and first, a second, a third, and a forth hydraulic motor (7, 8, 9,...
US20120090311 ACTUATING SYSTEM FOR A MOVABLE AIRCRAFT ENGINE NACELLE ELEMENT, SUCH AS A THRUST REVERSER COVER  
This system for actuating at least one aircraft nacelle element comprises at least two actuators (A1, A2, A3) kinematically linked together, a main hydraulic (or electric) generation circuit (1)...
US20140026550 HYDRAULIC ENERGY RECOVERY SYSTEM  
A machine includes a hydraulic cylinder configured to raise and lower a boom of the machine, and an accumulator selectively fluidly connected to the hydraulic cylinder. The accumulator is...
US20120023924 VARIABLE HYDRAULIC SYSTEM  
A hydraulic system is provided with a prime mover connected to a first fixed displacement pump having a maximum flow A, a hydraulic loop connected to a system of valves and actuators, a second...
US20150184680 Torque Limit Control  
A prime mover transfers power to a separate hydraulic circuits via a power take off (PTO). In some situations, a peak torque demand in one of the hydraulic circuits may cause the total torque of...
US20140109560 SOFT ROBOTIC ACTUATORS  
A soft robotic device includes a flexible body having a width, a length and a thickness, wherein the thickness is at least 1 mm, the flexible body having at least one channel disposed within the...
US20090139224 Device and method of continuously variable transmission of traveling vehicle  
A variable capacity pump and two variable capacity motors are connected in a closed circuit. First to fourth drive gears are fitted to motor shafts of the variable capacity motors via clutches. A...
US20130239561 Hydraulic Transaxle  
A hydraulic transaxle comprises a transaxle housing, an axle, a hydraulic pump, a hydraulic motor, a hydraulic circuit, and a pair of auxiliary pumps. The transaxle housing defines a fluid sump...
US20130111893 Hydrostatic Drive  
A hydrostatic drive includes a hydraulic pump configured to drive at least two hydraulic motors. The hydraulic motors each include an inlet side and an outlet side. The hydraulic motors are each...
US20120204776 HYDRAULIC SYSTEM FOR A WATERCRAFT  
An independent hydraulic system for operating at least one first system used in the operation of a watercraft and adapted to be fluidly connected to one other independent hydraulic system for...
US20100298080 DRIVE UNIT  
A drive unit comprises an output shaft, two or more hydraulic motors, each hydraulic motor being adapted to drive the output shaft, and hydraulic fluid distribution means for supplying relatively...
US20120324875 OPTIMIZED SYSTEM RESPONSE WITH MULTIPLE COMMANDS  
A method and system for operating a machine having first and second movable elements, first and second hydromechanical movers for moving the first and second movable elements, respectively, and...
US20130255245 HYDRAULIC OIL CYLINDER, HYDRAULIC CUSHION SYSTEM, EXCAVATOR AND CONCRETE PUMP TRUCK  
The present application discloses a hydraulic oil cylinder, of which a piston rod (3) is provided with at least two cushion collars (4, 11) which are axially slidable along the piston rod (3)....
US20120216521 METHODS OF CONTROLLLING HYDRAULIC MOTORS  
A hydraulic control system includes a first motor, a second motor, a pump operatively associated with the first motor, a first coupling valve operatively associated with the second motor, first...
US20130219878 AIRCRAFT ACTUATOR HYDRAULIC SYSTEM  
A plurality of actuators (11a, 11b) operate as a result of pressure oil being supplied thereto from a aircraft central hydraulic power source 104, and drive one control surface 103a. A backup...
US20140060035 IMPLEMENT WITH REDUCED HYDRAULIC OIL EXCHANGE  
A folding implement frame having seven sections in a use position and nine sections when folded. The frame design allows a frame having a width of greater than 27 meters to be folded into a...
US20140137545 HYDRAULIC SYSTEM FOR PROVIDING AUXILIARY DRIVE TO A POWERTRAIN AND A HYDRAULIC CIRCUIT  
This disclosure is directed towards a hydraulic system for providing auxiliary drive to a powertrain (11) and a hydraulic circuit (12) by storing and releasing hydraulic fluid using an accumulator...
US20130067901 HYDRAULIC TUBING SUPPORT STRUCTURE AND OPERATING MACHINE PROVIDED THEREWITH  
A hydraulic tubing support that reduces noise transmitted to an operator due to pulsation of hydraulic oil in a junction tube. The hydraulic tubing support structure includes a pair of left and...
US20100005794 DRIVE SYSTEM AND ACTUATION METHOD  
The present invention relates to a drive system (100) applied to the mechanism for discharging solids and regulating flows of a reactor vessel (300), reducing the degree of freedom between the...
US20090158728 Smart flow sharing system  
A smart flow sharing system, useful in hydraulic systems having more than one hydraulically demanding equipment function wherein more than one of the hydraulically demanding functions are...
US20140060019 INTEGRATED HYDRAULIC SUPPLY PUMP  
A hybrid electric drive system including a hydraulic power system for a hybrid powered vehicle which includes a transmission, and a combustion engine and an electric motor both mechanically...
US20070130937 Hydraulic system for pivoting the lateral structural parts of a truck upwards and downwards  
Hydraulic system for pivoting the lateral structural parts of a truck upwards and downwards. Hydraulic system includes a hydraulic control unit provided with a hydraulic pump and hydraulic valves;...
US20090288408 HYDRAULIC CIRCUIT, ENERGY RECOVERY DEVICE, AND HYDRAULIC CIRCUIT FOR WORK MACHINE  
A hydraulic circuit that enables smooth absorption of the energy of a return fluid from a hydraulic actuator by means of an energy recovery motor. A return fluid passage to which the fluid...
US20120152056 Multiple-variator control for split power CVT and hydrostatic transmissions  
A system for providing hydraulic power in a machine transmission includes a first hydraulic variator and a second hydraulic variator, each variator having a mechanical input to a hydraulic pump,...
US20110041490 HYDRAULIC ENERGY ACCUMULATOR  
Example energy storage systems (20, 20′, 20″) comprises a fluid circuit (22, 22′, 22″) and an electrical unit (24, 24′, 24″) configured to operate as a motor in a first phase of operation and to...
US20080277525 HYDRAULIC DISTRIBUTOR FOR AIRPLANE LANDING GEAR  
A hydraulic distributor 10 assembles in a single body an assembly of hydraulic components that assure the supply of actuators for controlling the movements of the moving elements of an airplane...
US20080041048 Hydrostatic Transmission System  
A hydrostatic transmission apparatus has a housing, a hydraulic pump disposed in the housing so as to be driven by a prime mover and a first hydraulic motor disposed in the housing. A first port...
US20130115014 HYDROSTATIC DRIVE FOR A MACHINE  
A hydrostatic drive including a hydrostatic pump configured to supply a transmission fluid. The hydrostatic drive further includes an axle motor and a drum motor. The axle motor is configured to...
US20130081385 METERLESS HYDRAULIC SYSTEM HAVING MULTI-ACTUATOR CIRCUIT  
A hydraulic system is disclosed. The hydraulic system may have a pump, a rotary actuator, a linear actuator, and a closed-loop circuit fluidly connecting the pump to the rotary and linear...
US20080271445 HYDRAULIC CIRCUIT FOR SYNCHRONIZED HORIZONTAL EXTENSION OF CYLINDERS  
A hydraulic system for synchronized movement of multiple cylinders in a horizontal plane includes a bidirectional pump, a shuttle valve cross-connected between pump outlets, flow-control check...
US20110138796 Method of activating a mountable hydraulic appliance, and such mountable hydraulic appliance, in particular for demolition, comminution or recycling  
The invention relates to a method of activating a mountable hydraulic appliance, and to such mountable hydraulic appliance for the shearing or crushing of structures, in particular for demolition,...
US20150204354 Hydrostatic Drive System In A Closed Circuit  
A hydrostatic drive system (1) has a hydrostatic pump (3) driven by a drive motor (2) and connected in a closed circuit with a hydrostatic motor (4). The hydrostatic motor (4) drives a consumer...
US20130180237 HYDRAULIC TRANSMISSION CIRCUIT WITH MULTIPLE CAPACITIES  
A hydraulic transmission circuit comprising three or four coupled hydraulic elementary motors, each elementary motor having a first and a second secondary enclosure. The circuit includes four...
US20120227393 Modular Hydraulic Hybrid Drivetrain  
A drive module for a hydraulic hybrid vehicle includes two variable displacement over-center bent-axis hydraulic pump/motors with respective yokes that reside and pivot within a common...
US20150121859 APPARATUS AND METHOD FOR SUPPLYING FUEL TO ENGINE OF SHIP  
Disclosed herein are an apparatus and a method for supplying a fuel to an engine of a ship. The apparatus for supplying a fuel to an engine of a ship includes: a high pressure pump pressurizing a...
US20120055050 Multi-Function Wheel Loader Linkage Control with Optimized Power Management  
A hydraulic system and earth-moving vehicle employing the hydraulic system are disclosed. The hydraulic system may include a first hydraulic cylinder and a second hydraulic cylinder, first and...
US20120000192 Universal Control Scheme For Mobile Hydraulic Equipment And Method For Achieving The Same  
A universal control scheme for mobile hydraulic equipment has switches to activate and/or control any number of different tools or accessories that may be used to configure the equipment....
US20090049833 Hydraulic Transaxle  
A hydraulic transaxle has an axle casing and a pair of hydraulic motors disposed in the axle casing. The hydraulic motors have respective motor shafts and respective moveable swash plates. An axis...
US20100021234 PROPULSION AND STEERING SYSTEM FOR A ROAD MILLING MACHINE  
A propulsion system is for a road milling machine with a rotatable cutter drum (3). The system includes four crawler assemblies (12) movably coupled with the mainframe so as to define front and...
US20090019845 Actuation system for a servo-assisted mechanical transmission with oil leakage recovery  
An actuation system for a servo-assisted transmission; the actuation system is provided with: a hydraulic circuit comprising a reservoir containing a control fluid, a hydraulic accumulator...
US20120060488 HYDRAULIC ENERGY SOURCE FOR SUPPLYING A DOWNSTREAM HYDRAULIC SYSTEM WITH HYDRAULIC ENERGY  
A hydraulic energy source for supplying a downstream hydraulic system with hydraulic energy. In particular, a hydraulic system for controlling and/or cooling a transmission preferably a dual...
US20130124065 HYDROSTATIC TRACTION DRIVE AND VEHICLE WITH SUCH A TRACTION DRIVE  
A hydrostatic traction drive includes a pressure medium source configured to drive four hydromotors connected as pairs in series, the pairs arranged parallel to each other. In a respective...

Matches 1 - 50 out of 114 1 2 3 >