Matches 1 - 50 out of 85 1 2 >


Match Document Document Title
US20140294606 Automatic Fuel Additive Controller and Dispenser  
An Automatic Fuel Additive Controller and Dispenser has been disclosed. In one implementation a pump is used to purge a hydrostatic sensing tube of liquid prior to measurement.
US20140030113 Method and System for Determining a Pump Setpoint  
A method for determining a pump setpoint for delivering a desired volumetric flow rate of a substance through a channel comprises measuring a first volumetric flow rate through the channel for a...
US20120011839 AUXILIARY HYDRAULIC POWER GENERATION SYSTEM  
An auxiliary hydraulic power generation system includes a first spool including a turbine. A fan is coupled to the first spool, the fan operable to drive the first spool in a windmill condition in...
US20140311139 Hydrostatic Variable Displacement Pump Which Can Be Set In Either Direction Of Displacement  
A hydrostatic variable displacement pump (2) has a displacement volume set by an electro-hydraulic control device (10) provided with a safety function. In a fault scenario, the variable...
US20110286862 PUMP FOR A LUBRICATING SYSTEM OF A COMBUSTION ENGINE  
A pump is provided for a lubricating system of a combustion engine that includes, but is not limited to a housing and a lid that together define a pump hollow space in which a pump mechanism for...
US20130004340 SYSTEM AND METHOD FOR MONITORING OPERATION OF A PUMP  
Systems and methods for monitoring operation of a pump, including verifying operation or actions of a pump, are disclosed. A baseline profile for one or more parameters of a pump may be...
US20100303643 Fan Drive System  
A fan drive system for driving an engine cooling fan mounted in a working machine is described. The fan drive system includes a variable displacement pump that supplies oil to an actuator and is...
US20110268588 CONTROLLER OF HYBRID CONSTRUCTION MACHINE  
Discharge energy of a rotation motor RM and a boom cylinder BC are used as an assist force for an electric motor MG. An assist motor AM and a sub pump SP driven by output of the electric motor MG...
US20140199182 RECIPROCATING WATER PUMP  
A reciprocating jetting water pump primarily for use on a vacuum truck is disclosed. The jetting water pump includes a pair of reciprocating pistons that are each movable within an outer cylinder...
US20120301325 PUMP SYSTEM HAVING OPEN-LOOP TORQUE CONTROL  
A pump system is disclosed. The pump system may have a pump with a displacement that is variable, and an actuator movable to adjust the displacement of the pump. The pump system may also have an...
US20130189126 HYDRAULIC CONTROL CIRCUIT  
The present invention relates to a hydraulic circuit including: a variable displacement pump, a booster pump, a pump control controlling the displacement of the variable displacement pump,...
US20130090832 Supercharger-Based Twin Charging System for an Engine  
The present disclosure relates to dual compression engine boosting systems utilizing both a turbocharger and a supercharger and control systems relating to relative activation and deactivation of...
US20110020146 ROTATION DRIVE CONTROLLING SYSTEM FOR CONSTRUCTION MACHINE  
The system includes: a variable displacement hydraulic pump supplying pressure oil to a hydraulic actuator; a pressure detector detecting a pump discharge pressure from the hydraulic pump; a...
US20050047930 System for controlling a hydraulic variable-displacement pump  
In the case of a system for controlling a hydraulic variable displacement pump, the latter is acted upon in the direction of increasingly pump capacity over an energy storage system and, in the...
US20150037173 METHOD AND DEVICE FOR ACTIVATING AN ELECTRIC VACUUM PUMP FOR A BRAKE BOOSTER OF A VEHICLE  
Described are a method and a device for activating an electric vacuum pump for a brake booster of a vehicle. The brake booster is supplied with a vacuum from a vacuum reservoir. The vacuum pump is...
US20110103977 Control Process for a Piezoelectric Pump of an Electric Household Appliance and an Electric Household Appliance Employing Such a Process  
Control process for a piezoelectric pump (100) of an electric household appliance comprising a pump chamber (110) equipped with a mobile wall (111) displaceable under the action of a piezoelectric...
US20150211515 Micro-Sized Fluid Metering Pump  
A motor-driven fluid pump has a positive displacement rotary pumping element with an offset circular cam carried outwardly of the element, the cam being rotated with the pumping element by contact...
US20150132152 Reinforced Smart Mud Pump  
A pump system for movement of fluids having a reciprocating piston power pump having at least three reciprocating pistons operable to displace fluid from a housing having a pumping chamber, an...
US20130121852 SYSTEM FOR CONTROLLING HYDRAULIC PUMP IN CONSTRUCTION MACHINE  
Disclosed is a system for controlling a hydraulic pump in a construction machine which can reduce the discharge flow of the hydraulic pump in proportion to the load pressure of the hydraulic pump...
US20150019078 ELECTRIC ACTUATOR-INTEGRATED ELECTRIC POWER STEERING SYSTEM AND METHOD OF CONTROLLING THE SAME  
An electric actuator-integrated electric power steering system may include an integrated motor which provides rotational force, a hydraulic pump connected to one end of the integrated motor and...
US20060099087 Double-acting, duplex pump controlled by two, two position spool valves  
The present invention provides a fluid control system and associated methods. The fluid control system includes a source of a pressurized fluid and a first spool valve having at least two...
US20140341710 CENTRIFUGAL REFRIGERANT VAPOUR COMPRESSORS  
A refrigerant compressor (10) for use in a chiller-heater system that can provide chilled water at less than 10° C. and hot water at more than 80° C. without the need for additional heat input,...
US20110268587 CONTROL OF A FLUID PUMP ASSEMBLY  
A pump control assembly includes a fluid pump assembly having a fluid pump and a load sensing valve. The fluid pump includes a fluid inlet and a fluid outlet. The fluid pump includes a variable...
US20060078435 Pump monitoring system  
A plurality of pump related monitoring devices can communicate wirelessly with displaced user circuits. The user circuits can in turn acquire data via a respective monitoring device associated...
US20080206067 High Pressure Pump Control  
A feedback control loop for a high pressure pump modifies the accumulator velocity and pressure during solvent transfer. The accumulator velocity is adjusted to maintain the system pressure equal...
US20110256000 LOCAL BACKUP HYDRAULIC ACTUATOR FOR AIRCRAFT CONTROL SYSTEMS  
A backup system is provided that has a local electric motor and pump for some or all of hydraulic actuators. A local backup hydraulic actuator has two power sources, hydraulic as primary and...
US20130336812 HYDRAULIC DRIVE  
A hydraulic drive for a hydraulic load or for a hydraulic system includes a variable-displacement pump which is mechanically coupled to a variable-speed drive motor. The hydraulic drive also...
US20090208348 Capacity varying device for scroll compressor  
A capacity varying device for a scroll compressor is provided. The device may include a fixed scroll and an orbiting scroll both located in a casing, a low pressure passage formed by an orbiting...
US20060222511 Multicylindrical rotary compressor  
There is disclosed a multicylindrical rotary compressor capable of improving an operation efficiency during a small-capacity operation, the compressor comprises a controller as a control unit...
US20120076670 FLUID-WORKING MACHINE AND METHOD OF OPERATING A FLUID-WORKING MACHINE  
In a method of operating a fluid-working machine, the volume of working fluid displaced during each cycle of working chamber volume is selected taking into account the availability of other...
US20100322787 ELECTRONIC CLUTCH FOR A WATER PUMP  
The present invention relates to an electronic clutch for a water pump which is able to break the transmission of drive force between a pulley and a water pump drive shaft in accordance with the...
US20140154104 Hydrostatic Positive Displacement Machine  
A hydrostatic positive displacement machine (2) is operated in a closed circuit and delivers hydraulic fluid into a working circuit. The displacement volume is varied by a control device (6)...
US20090274493 AIR DISCHARGING APPARATUS AND IMAGE FORMING APPARATUS  
An air discharging apparatus to discharge pressurized air at a predetermined timing is disclosed. The disclosed air discharging apparatus includes an air pump including a cylinder and a piston...
US20110142688 MEMS FLUID PUMP WITH INTEGRATED PRESSURE SENSOR FOR DYSFUNCTION DETECTION  
The invention relates to a pumping device including a pump (1) comprising—a pumping chamber (11) having a variable volume,—an inlet (2) communicating with the pumping chamber (11) and comprising a...
US20100028168 Drive unit and vehicle  
A drive unit that includes a solenoid device that includes: a solenoid section having a movable portion that abuts on a case to arrive at an initial state when de-energized; a pump section axially...
US20120057991 FLUID-WORKING MACHINE AND METHOD OF OPERATING A FLUID-WORKING MACHINE  
In a method of detecting a fault in a fluid-working machine including a plurality of working chambers of cyclically varying volume, each working chamber is operable to displace a volume of working...
US20150240800 OIL-WELL-PUMP DRIVING HYDRAULIC SYSTEM  
In an oil-well-pump driving hydraulic system capable of avoiding occurrence of cavitation, at least a bidirectional variable displacement piston pump, a discharge rate detection portion, a...
US20080080981 Compensating temperature-induced errors during piston movement  
A method for controlling movement of a piston in a metering device is described. The method comprises supplying a fluid by actuating the metering device's piston, wherein compression or expansion...
US20140377086 AIR-DRIVEN PUMP SYSTEM  
An air-driven pump system comprising: a directional unit that defines a directional air chamber and comprises a directional piston, a first process air intake, and a second process air intake; two...
US20110123354 Fluid-working machine and operating method  
A fluid-working machine has a plurality of working chambers, e.g., cylinders, of cyclically changing volume, a high-pressure fluid manifold and a low-pressure fluid manifold, at least one valve...
US20140294610 PERISTALTIC PUMP FOR PUMPING A LIQUID AND METHOD FOR OPERATING A PERISTALTIC PUMP  
A peristaltic pump (1) for pumping a liquid comprises a flexible tube (2) for guiding the liquid to be pumped, a compression means (5) being actuatable for compressing the flexible tube (2), an...
US20150078922 HIGH PRESSURE PUMP  
A high pressure pump includes a pump body, a pressurizing chamber, a fuel passage, a union, a seat member, a relief valve seat, a relief valve, a discharge valve seat, a discharge valve, a spring...
US20090123300 System and method for controlling a variable displacement compressor  
A system and method for controlling the displacement of a variable displacement compressor by feeding back crankcase pressure as part of a control scheme is disclosed.
US20090090113 COMPRESSOR ASSEMBLY HAVING ELECTRONICS COOLING SYSTEM AND METHOD  
A system, compressor, and method that cools an electronics module with a low-pressure refrigerant. The system, compressor, and method utilize a temperature sensor that detects a temperature of the...
US20120288379 System and Method for a Variable Home Position Dispense System  
Embodiments of the invention provide a system, method and computer program product for reducing the hold-up volume of a pump. More particularly, embodiments of the invention can determine, prior...
US20110076160 CONTROL DEVICE FOR A HYDRAULIC PISTON MACHINE WITH A VARIABLE FLOW RATE  
A control device for a hydraulic piston machine with a variable flow rate averaged over time has a plurality of pistons each defining a working chamber with a changeable value and connectable to...
US20130168179 SYSTEM AND METHOD FOR CONTROLLING TRANSMISSION BASED ON VARIABLE PRESSURE LIMIT  
A system for controlling a transmission including a fluid pump and a fluid motor operably coupled to one another in a fluid circuit is disclosed. The system includes a controller configured to...
US20120283882 Method and apparatus for controlling multiple variable displacement hydraulic pumps  
A method and apparatus for controlling discharge pressure and pump displacement of a plurality of variable displacement hydraulic pumps having connected discharge ports is provided. Each pump...
US20120251342 Control System and Method for Pump Output Pressure Control  
A pump system includes pump having a control feature which, responsive to a supply of pressurized working fluid, reduces the pressure of the working fluid pressurized by the pump. The control...
US20130004337 SYSTEM AND METHOD FOR DRIVING A PUMP  
A system for driving a pump includes a gas turbine engine having an output shaft, and a torque converter including an input shaft coupled to the output shaft of the gas turbine engine and an...

Matches 1 - 50 out of 85 1 2 >