Matches 1 - 35 out of 35


Match Document Document Title
US20150147189 Two-Stage Linear Peristaltic Pump Mechanism  
This invention discloses a peristaltic pump composed of a two-stage linear peristaltic pump mechanism, which engages in different functions, charging and pumping a fluid to a patient. This...
US20120134847 PUMP HAVING VENTING AND NON-VENTING PISTON RETURN  
Apparatus and method for supplying lubricant to a plurality of lubrication sites. Embodiments include a pump with venting and non-venting piston return, a pump with stirrer and direct feed...
US20090145128 GEARED BOILER FEED PUMP DRIVE  
A geared fluid drive arrangement in which a constant speed motor is used to start a “full-size” boiler feed pump, and is able to operate the pump at a limited speed and correspondingly limited...
US20110286858 WATER PUMP SYSTEM AND METHOD  
This disclosure relates a water pump control system for an internal combustion engine, and a method for operating an internal combustion engine including a clutch-controlled water pump. The water...
US20150211529 Pump System with Flow Control  
A pump system is provided including a power source, a pump and a transmission. First and second sensors are configured to respectively provide information indicative of at least one actual first...
US20060073047 Method for estimating drive torque of variable displacement compressor and system for controlling drive source rotation speed  
The value of an estimated drive torque is prevented from greatly differing from an actual drive torque of a variable displacement compressor immediately after a refrigerating cycle is started. A...
US20130323081 TURBOPUMP  
The invention relates to a field of feeding reaction engines, and in particular a turbopump 9 for feeding at least one combustion chamber 2 with a first propellant, the turbopump comprising a pump...
US20140105755 PROGRESSIVE CAVITY PUMP  
An electric submersible progressing cavity pump (ESPCP) assembly that restricts reverse rotation of the pump motor and provides for efficient motor shutdown in the event of reverse rotation is...
US20110176932 HYDRAULIC CIRCUIT FOR A POWER TRANSMISSION DEVICE  
A hydraulic fluid circuit for a power transmission device includes a first hydraulic circuit segment fluidly decoupled from a second hydraulic circuit segment. A hydraulic pump includes a first...
US20140147288 PUMP ACTUATOR AND METHOD FOR PUMP OPERATION  
Method and apparatus for controlling a moveable pumping diaphragm and a liquid color diaphragm pump, including a housing, a movable pin slidably residing within the housing, a potentiometer...
US20110033314 Systems and Methods for Automatic Forward Phasing Determination in a Downhole Pump System  
Systems and methods for controlling an electrical drive such as is used with electric submersible pumps used in downhole oil production, wherein the drive automatically determines the proper...
US20140377079 PROPELLER ROTOR AND ENGINE OVERSPEED CONTROL  
An electromagnetic device for overspeed control of a propeller driven by an engine shaft comprises a clutch, an eddy-current coupler, and an electromagnetic brake. The clutch is disposed to...
US20150204322 PUMP SYSTEM HAVING SPEED-BASED CONTROL  
A pump system is disclosed. The pump system may have a power source, a pump, and a torque converter configured to fluidly couple an output rotation of the power source to an input rotation of the...
US20150152876 Anti-Air-Return System and Method of Fan  
An anti-air-return fan system includes a motor, a driving control circuit, and a rotation judgment circuit. The driving control circuit is electrically connected to the motor. The driving control...
US20090016898 Compressor Device  
Compressor including a housing (2) containing a compressor element (6) that is powered by a variable speed motor (7) with a control box (8) with a set maximum number of revolutions (Nmax) for the...
US20080292470 Compressor driving torque estimating apparatus  
A compressor drive torque estimating device to be adapted for a system provided with a refrigeration cycle in which a refrigerant is circulated by a compressor driven by a drive source mounted in...
US20120237361 AIR CONDITIONING COMPRESSOR OVER-TORQUE PROTECTOR  
An automotive air conditioning compressor assembly that includes a compressor capable of exhibiting an over-torque condition, an electromagnetic clutch, and an over-torque protection device...
US20140322031 AIR-COMPRESSING DEVICE FOR A CYCLE  
The air-compressing device for a cycle has a crank set. The device includes at least one cartridge for storing compressed air, and a compressor, connected to the cartridge. The compressor includes...
US20080292469 CENTRIFUGAL AIR COMPRESSOR  
If the ambient temperature of a pressure volute measured by a temperature sensor exceeds 0° C., a compressor is instantly started at normal operation. If the temperature of the pressure volute...
US20080232975 Pressure-operated mechanism and water pump including the same  
A pulley is fixed to a housing of a water pump, the pulley being connected to an output shaft of an internal combustion engine so that the pulley is driven through the output shaft. In the...
US20140079560 HYDRAULIC OIL WELL PUMPING SYSTEM, AND METHOD FOR PUMPING HYDROCARBON FLUIDS FROM A WELLBORE  
A hydraulic oil well pumping system is provided. The system uses a pump to exert hydraulic pressure against a reciprocating piston over a wellbore. The piston is connected to a rod string and...
US20110135498 METHODS AND SYSTEMS FOR ASSISTED DIRECT START CONTROL  
Methods and systems are provided for pressurizing a transmission hydraulic circuit including a transmission mechanical pump coupled to an engine though a gearbox. One example method comprises,...
US20130343908 Clutch Compressor and Power Steering Pump Arrangement, and Method for Controlling the Same  
A vehicle has a drive shaft which transmits torque onto a first drive, a clutch compressor, and a power steering pump. The power steering pump is driven by an output shaft which transmits torque...
US20150184575 Control Methods and Systems for Dual Mode Cooling Pump  
Methods and systems for controlling the operation of a dual mode engine accessory, such as a dual mode cooling pump. The dual mode device has two modes of operation, an electric motor operation...
US20130306005 CONTROL METHODS AND SYSTEMS FOR DUAL MODE COOLING PUMP  
Methods and systems for controlling the operation of a dual mode engine accessory, such as a dual mode cooling pump. The dual mode device has two modes of operation, an electric motor operation...
US20170174048 VEHICLE ACCESSORY POWER MANAGEMENT ASSEMBLY  
A vehicle accessory power management assembly has a power device, an accessory device, a power transmitting device and a controller. The power transmitting device has an input part coupled to the...
US20170146007 OPERATIONAL CONTROL OF WELLSITE PUMPING UNIT WITH DISPLACEMENT DETERMINATION  
A well pumping system can include an actuator that reciprocably displaces a rod string, a flowmeter that measures flow of a fluid between a power source and the actuator, and a control system that...
US20170146006 OPERATIONAL CONTROL OF WELLSITE PUMPING UNIT WITH CONTINUOUS POSITION SENSING  
A well pumping system can include an actuator that reciprocably displaces a rod string, a continuous position sensor that continuously detects a position of a member of the actuator, and a control...
US20170037839 PUMP ACTUATOR AND METHOD FOR PUMP OPERATION  
Method and apparatus for controlling a moveable pumping diaphragm and a liquid color diaphragm pump, including a housing, a movable pin slidably residing within the housing, a potentiometer...
US20160298620 MINIATURE PUMPS, ACTUATORS AND RELATED DEVICES AND METHODS FOR MAKING AND USE  
A miniature diaphragm pump. The diaphragm is loaded with energy during the exhaust stroke and the loaded energy is released during the pump stroke, which improves the efficiency of the miniature...
US20160186670 FUEL SYSTEM  
A fuel system includes a centrifugal pump which pressurizes and delivers fuel that is supplied to an aircraft engine, and a transmission which connects the engine and the centrifugal pump to each...
US20160040677 COOLANT PUMP WITH ELECTRIC MOTOR DRIVE AND MECHANICAL DRIVE  
The invention relates to a coolant pump (15) having a pump wheel (13) which is arranged on a pump wheel shaft (3, 11); and having a drive device (1; 8, 9) for the pump wheel (13), which drive...
US20160040676 HYBRID COOLANT PUMP  
A hybrid coolant pump with two modes of operation, an electric motor operation and a mechanical pulley-driven operation. A friction clutch assembly is positioned inside the motor housing and...
US20160003236 METHODS AND APPARATUS TO DETERMINE OPERATING PARAMETERS OF A PUMPING UNIT FOR USE WITH WELLS  
Methods and apparatus to determine operating parameters of a pumping unit for use with wells are disclosed. An example apparatus includes a housing and a processor positioned in the housing. The...
US20150316067 ROTARY ADJUSTMENT CONTROLLER OF AN AIR PUMP  
A rotary adjustment controller of an air pump has a casing, a micro switch, an air pressure sensing film, and a control mechanism. The control mechanism has a bolt, a nut, and a turning button....

Matches 1 - 35 out of 35