VARIABLE DISPLACEMENT PUMP AND METHOD FOR REGULATING SUCH PUMP

CONTROLLING SUCTION VALVES OF A FLUID PUMP

ACTUATION SYSTEM FOR A BENT AXIS MOTOR

Control of a dual-pump single-power source system

Method for controlling the start-up of an oil pump

Hydraulic fracturing pump control system

Pressure pump performance monitoring system using torque measurements

Active hydraulic ripple cancellation methods and systems

Torque monitoring of electrical submersible pump assembly

Rig management system for transmission control of a hydraulic fracturing rig

Method and apparatus for vibration compensation in a piston compressor

ELECTRONIC CONTROL DEVICE FOR A REFRIGERANT COMPRESSOR

Electric Oil Pump Device

Active hydraulic ripple cancellation methods and systems

Method of determining pump fill and adjusting speed of a rod pumping system

Rod pumping unit and method of operation

Method and control circuit for controlling an electrical drive of an electrically driven compressed air compressor of a motor vehicle

System and method for health management of pumping system

Hydraulic pressure control device

Method, device, and system for controlling hydraulic pump of construction machine

Methods and apparatus to determine parameters of a pumping unit for use with wells

Engine rotational speed control apparatus

Hydraulically actuated diaphragm pumps

Method and control device for variable rotational speed control of a displacement pump unit and displacement pump arrangement

Work vehicle and work vehicle control method

Refrigeration Cycle

Method, device and means for driving a reciprocating linear motion double acting pump

Engine load control device of work vehicle

METHOD FOR DETERMINING A SETTING PARAMETER FOR A HYDROSTATIC DISPLACEMENT UNIT AND A CORRESPONDING SYSTEM

Power management system and method

Digital hydraulic pump/motor torque modulation system and apparatus

Variable Rate Pumping System

Work machine, control system and method for controlling an engine in a work machine

Method and Device for Monitoring and Controlling a Hydraulic Actuated Process

Engine-load control device for working vehicle

OIL PRESSURE UNIT AND SPEED CONTROL METHOD OF MOTOR IN OIL PRESSURE UNIT

Torque estimating device of compressor

Compressor

System and method for power pump performance monitoring and analysis

Opposed pumping load high pressure common rail fuel pump

Pump with torque reversal avoidance feature and engine system using same

Compressor driving torque estimating apparatus and compressor driving source control apparatus

Control apparatus for variable capacity compressor and method of calculating torque of variable capacity compressor

Variable rate pumping system

Torque controlled pump protection with mechanical loss compensation

Signal processing system for construction machine

Construction machine

Method for operating a compressor