Matches 1 - 22 out of 22


Match Document Document Title
US20070189905 MULTI-STAGE COMPRESSION SYSTEM AND METHOD OF OPERATING THE SAME  
A multi-stage compression system includes a plurality of centrifugal compression stages. Each stage includes an impeller and a variable speed motor coupled to the impeller. Each variable speed...
US20160327049 MULTI-STAGE COMPRESSION SYSTEM AND METHOD OF OPERATING THE SAME  
A multi-stage compression system includes a plurality of centrifugal compression stages. Each stage includes an impeller and a variable speed motor coup led to the impeller. Each variable speed...
US20090257886 Method And Apparatus For Controlling Microfluidic Flow  
An apparatus includes a pump; a gas pressure sensor; a microfluidic chip defining a microfluidic conduit; and a gas conduit providing fluid communication between the pump, the gas sensor and the...
US20100296945 FAN CONTROL APPARATUS AND FAN CONTROL METHOD  
A fan controlling apparatus for controlling a plurality of fans which are tandemly arranged in ventilation direction of a chamber to control a temperature of a hot generating object placed in the...
US20150211512 SYSTEM AND METHOD FOR DRIVING MULTIPLE PUMPS ELECTRICALLY WITH A SINGLE PRIME MOVER  
A converterless motor-driven pump system includes an off-grid prime mover. The prime mover includes a rotational driveshaft that operates in response to a throttle or fuel input controller to...
US20100143155 Piston Pump Having A Force Sensor And A Method For Controlling Said Pump  
The present invention relates to a piston pump for generating a delivery flow, which is substantially free of pulsation, in particular to a dual piston pump, and to a method for controlling such a...
US20060222506 Rapidly pumping out an enclosure while limiting energy consumption  
A vacuum pumping device of the invention comprises a motor (1) driving a multi-stage dry mechanical pump (2) in which the stages (5, 6, 7, 8) are connected successively in parallel and then in...
US20150086387 METHOD AND APPARATUS FOR WARMING UP A VACUUM PUMP ARRANGEMENT  
A method for warming up a vacuum pump arrangement having a booster pump and a backing pump downstream of the booster pump for evacuating a process chamber includes setting the booster pump at a...
US20130156604 HYDRAULIC PRESSURE PRODUCING SYSTEM FOR AUTOMATIC TRANSMISSION AND CONTROL METHOD THEREOF  
A hydraulic pressure producing system for an automatic transmission, and a control method thereof may include a first hydraulic pump adapted to generate hydraulic pressure for shifting, a second...
US20120263605 COMPRESSION METHOD AND AIR SEPARATION  
A compression method, a multistage compression system and an air separation method and plant in which a gas is compressed in a series of compression stages to produce a compressed gas and each of...
US20060228221 Apparatus for controlling operation of compressors  
An apparatus for controlling an operation of compressors includes a single microcomputer for calculating stroke estimate values of multiple compressors based on voltage and current values applied...
US20080019842 System and method for controlling compressor flow  
A system for controlling air flow comprises an inlet, a first compressor, a first pressure sensor, a second pressure sensor, a first temperature sensor, and a first controller. The inlet is...
US20100028164 FAN FILTER UNIT  
A fan filter unit includes a plurality of fan motors, a plurality of detectors, a total controller, and a filter. Each of the fan motors includes a fan and a motor. The total controller performs a...
US20140294599 PUMP MOTOR CONTROL SYSTEM FOR AUTOMATIC TRANSMISSION AND METHOD THEREOF  
A pump motor control system provides for a low-pressure hydraulic pump and a high-pressure hydraulic pump on one shaft of a pump motor. A method includes detecting information including engine...
US20150118065 PUMP UNIT  
According to one embodiment, a pump unit provided for piping which feeds a liquid at a preset unit flow rate includes (n+1) pumps and a constant flow valve. The (n+1) pumps are arranged in series...
US20130287594 FLUID SUPPLY DEVICE  
A fuel supply device according to the present invention comprises a first fuel pump for forcing fuel from a fuel tank to a fuel passage, a first electric motor for driving the first fuel pump, a...
US20060067835 Rotary compressor and method of operating a rotary compressor  
The invention proposes a method of operating a rotary compressor (1) with twisted rotors (10, 20) for compressing gaseous media, in which a gas-dynamic pulse is generated in the delivery chamber...
US20120128506 MULTICHAMBER AND MOTOR PUMPS WITH SEVERAL CHAMBERS PER MOTOR PUMP  
The mechanism subject of the invention is basically a modification of the “Multichamber and motor pumps for generating ultra high pressure” where more efficiency is acquired in the space and in...
US20080247879 Cooling Fan Module for a Motor Vehicle  
A cooling fan module for a motor vehicle has a first fan motor which is used to drive a first cooling fan and a second fan motor which is used to drive a second cooling fan. A control unit (6, 13)...
US20080273989 MULTI-STAGE GAS COMPRESSING APPARATUS  
A multi-stage gas compressing apparatus comprises a primary gas compressor and a secondary gas compressor. A gas compressed in the primary gas compressor is transferred to the secondary gas...
US20140178208 SYSTEM FOR GATHERING GAS FROM A GAS FIELD COMPRISING A HIGH EFFICIENT HIGH PRESSURE COMPRESSOR  
A system includes a high pressure compressor having a gas input and a gas output. The gas input is coupleable to a gas field for receiving a gathered gas with a first gas pressure, and the gas...
US20050281678 Pumpdosimeter - system and method for automatically controlling fluid parameters in centrifugal pumps  
The Pumpdosimeter is a method and apparatus for automatically maintaining a desired fluid parameter range at the sensor of a centrifugal pump system to decrease damage to the pump, and includes...

Matches 1 - 22 out of 22