145937 ⎘
Servomotor systems without provision for follow-up action; Circuits therefor; Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out"
Sub-classes:WORK MACHINE
#2FLUID PRESSURE CIRCUIT
#3Two-stage speed controller
#4HYDRAULIC DRIVE SYSTEM
#5ELEVATABLE CHAMBER AND METHOD OF OPERATING THE SAME
#6Work Machine
#7Work Machine
#8Implement descending stability control method and system and tractor
#9WORKING MACHINE AND METHOD OF CONTROLLING WORKING MACHINE
#10Work Machine
#11BOOM CONTROL SYSTEM OF WORK MACHINE
#12Hydraulic valve and system
#13Hydraulic pitch drive system
#14Hydraulic drive system
#15Gas-powered drive system and operating method
#16HYDRAULIC DRIVE SYSTEM
#17HYDRAULIC DRIVE SYSTEM
#18Hydraulic machine
#19LIFTING MECHANISM
#20Lifting mechanism
#21Work Machine
#22Work machine control system, work machine, and work machine control method
#23ELECTRO-HYDRAULIC ACTUATOR SYSTEMS AND METHODS OF OPERATING THE SAME
#24Hydraulic system for working machine
#25Work vehicle
#26Flow controller and driving apparatus including the same
#27Construction machine
#28Construction machine
#29Fluid circuit selection system and fluid circuit selection method
#30Fluid circuit of air cylinder
#31Valve arrangement for pressure medium supply of a hydraulic consumer
#32Hydraulic driving system and driving method for barring
#33VALVE DEVICE
#34Speed controller
#35Pneumatic pressure control device and pneumatic pressure control method for automatic door
#36Hydraulic drive device for cargo vehicle
#37Wheelchair lift with low energy consumption
#38Hydraulic work machine
#39Construction machine
#40Construction machine
#41Energy regeneration device and work machine provided with energy regeneration device
#42Hydraulic system for working machine
#43HYDRAULIC SYSTEM AND METHOD OF CONTROLLING HYDRAULIC ACTUATOR
#44Hydraulic excavator drive system
#45Cylinder driving device
#46Crane
#47Method and apparatus for controlling a double-acting pneumatic actuator
#48CONTROL DEVICE FOR FLUID PRESSURE ACTUATOR
#49Excavator and control valve for excavator
#50Hydraulic apparatus comprising synthetically commutated machine, and operating method
#51Method and device for controlling a hydraulically actuated drive unit of a valve
#52Hydraulic controller for hydraulically actuated liftable and lowerable hook of crane
#53Construction machine
#54Hydraulic control system of construction machine
#55Hydraulic actuator control circuit
#56Apparatus for recuperating hydraulic energy with energy-efficient replenishment of the rod sides of differential cylinders and simultaneous pressure intensification
#57Hydraulic drive system for work machine
#58Hydraulic control system for construction machine
#59Hydraulic control circuit for crane slewing gear
#60Hydraulic drive device with load-dependent pressure distributor
#61Fluid pressure system
#62Metering check valve
#63Fluid pressure control device
#64Construction machine
#65Driving device for work machine and work machine equipped therewith
#66Fluid pressure control device
#67Hydraulic control device for forklift
#68Power regeneration device for working machine and working machine
#69Control device for a hydraulic elevator drive
#70HYDRAULIC ACTUATOR DAMPING CONTROL SYSTEM FOR CONSTRUCTION MACHINERY
#71Hydraulic drive apparatus for work machine
#72Hydraulic circuit for construction machine
#73Hydraulic driving apparatus for working machine
#74Work implement control system
#75Transporter vehicle
#76Proportional poppet valve with integral check valves
#77VALVE ARRANGEMENT FOR ACTUATING A LOAD
#78Arrangement for providing a variable throttle cross-section for a fluid flow
#79Method of operating a control valve assembly for a hydraulic system
#80Hydraulic system having a backpressure control valve
#81Hydraulic control circuit for overcontrol of a slewing gear drive
#82Hydraulic drive, in particular for machine tools, and method for controlling the hydraulic drive
#83Hydraulic control apparatus
#84Holding control valve
#85DEVICE FOR CONTROLLING A FLUID-ACTIVATED DOUBLE-ACTION OPERATING CYLINDER
#86Control valve unit with alternating stop
#87Hydraulic catapult drive
#88Flow control apparatus for heavy construction equipment
#89Operating device
#90Pressure control valve having an asymmetric valving structure
#91Asymmetric volume booster arrangement for valve actuators
#92Actuator using fluid cylinder and method of controlling the same
#93Hydraulic control apparatus
#94Access method and apparatus that limit motion according to load and position
#95Valve arrangement for the activation of a structural element
#96Independent metering valve control system and method
#97Actuator using fluid cylinder, method of controlling the actuator, and choke valve devices
#98Arrangement for controlling a hydraulically driven motor
#99Injection unit comprising a spindle drive and hydraulic support
#100Hydraulic control unit for the arms of a grip and grip including said hydraulic unit
#101Hydraulic circuit and its valve gear
#102Semi-active ride control for a mobile machine
#103Hydraulic control arrangement
#104Hydraulic control in a hydraulic system, especially for the operation of scrap cutters
#105Method and apparatus for controlling air cylinder
#106Hydraulic system with an actuator having independent meter-in meter-out control
#107Hydraulic actuating device
#108Device for driving a plurality of hydraulic shift cylinders and hydraulic supply system for a twin-clutch transmission
#109Control valve apparatus and pressure circuit
#110Asymmetric volume booster arrangement for valve actuator
#111Controlled-flow hydraulic distributor
#112Cylinder apparatus with a capability of detecting piston position in a cylinder
#113Hydraulic valve arrangement
#114Valve arrangement and hydraulic drive
#115Valve arrangement and hydraulic drive
#116Valve arrangement and hydraulic drive