Matches 1 - 50 out of 411 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
7266961 Mobile refrigeration system and control  
A mobile refrigeration system that includes an engine that is operable at a first speed greater than zero and a second speed greater than zero. A compressor is operable in response to the engine at...
7260949 Compressor variable dryer system  
A dryer assembly for drying compressed fluid received from a fluid compressor. The dryer assembly comprises a compressed fluid circuit and a refrigeration circuit associated with the compressed...
7260946 Mobile refrigeration system and control  
A mobile refrigeration system that includes an engine that is operable at a first speed greater than zero and a second speed greater than zero. A compressor is operable in response to the engine at...
7240502 Method for controlling operation of air-conditioner  
A method for controlling operations of an air-conditioner includes: a step in which when an operation load of an air-conditioner increases, if an outputted compressing capacity of the...
7234324 Method and installation for controlling at least one cryogenic centrifugal compressor compression line  
Methods and apparatuses for controlling systems of cryogenic centrifugal compressors. A predetermined curve in the form of a first parameter as a function of a second parameter is selected. The...
7231773 Startup control system and method for a multiple compressor chiller system  
A startup control algorithm for a multiple compressor liquid chiller system is provided wherein the maximum number of compressors to be started to satisfy system load conditions is provided. The...
7228694 Cooling control system for an ambient to be cooled, a method of controlling a cooling system, and a cooler  
A cooling system for cooling an ambient to be cooled, a cooler and a method of controlling a cooling control system are described. The cooling control system comprises a variable capacity...
RE39597 Variable speed drive chiller system  
The compressor in a refrigeration system is controlled solely by a variable speed drive which controls the motor of the compressor by virtue of the varying of the frequency of the electricity...
7207187 Inverter-integrated motor for an automotive vehicle  
A bus-bar integrated plate and outer frame section, arranged into a double-deck structure and having numerous bus bars molded with a resin molding plate portion, is provided as a wiring for...
7207183 System and method for capacity control in a multiple compressor chiller system  
A capacity control algorithm for a multiple compressor liquid chiller system is provided wherein the speed and number of compressors in operation are controlled in order to obtain a leaving liquid...
7201010 Compressor control system for vehicle air conditioner  
In a compressor control system for a vehicle air conditioner, a hybrid ECU of the vehicle controls a rotation speed of a compressor electric motor. In this case, an output circuit, which outputs a...
7181923 Inverter device  
An inverter device for variably controlling an operating frequency of an electric motor, which drives a compressor in a refrigerating cycle. the inverter includes a box-like resin case, having a...
7152420 Air conditioning system  
An air conditioning system has a compressor that compresses a refrigerant and is capable of changing a flow rate of the refrigerant to be discharged, and an evaporator for evaporating the...
7143595 Supercritical refrigerant cycle system  
An object of the present invention is to improve a heat exchanging capability in an evaporator in a refrigerant cycle system in which a high pressure side is operated at a supercritical pressure....
7111471 Refrigerant cycle apparatus  
The present invention aims to prevent the occurrence of liquid compression at the second rotary compression element before it happens while improving the compression efficiency with an intermediate...
7096680 Vehicle air conditioner with discharge capacity control of compressor  
In a vehicle air conditioner having a variable displacement compressor, a control unit calculates a target cooling temperature of air to be cooled by an evaporator, and controls a discharge...
7080521 Mobile refrigeration system and control  
A mobile refrigeration system that includes an engine that is operable at a first speed greater than zero and a second speed greater than zero. A compressor is operable in response to the engine at...
7073343 Vehicle air conditioner with inverter  
A cooling system for a vehicle having a direct current electric power supply includes a compressor driven by an engine, a condenser connected to the compressor, and an evaporator connected between...
6997002 Air conditioning unit and method of operating the same  
Disclosed herein is an air conditioning unit and method of operating the same. The air conditioning unit has a power level control unit ( 6 ) for controlling the level of power supplied to a motor...
6996333 Fan speed control  
A fan speed control includes a power adapter, a CPU programmed with a phase splitting program, a current-limit resistor, a capacitor, a TRIAC, and a switch module, the CPU having a signal input...
6990823 Air conditioner  
An air conditioner accurately performs detection of a refrigerant circulation amount and improves a basic function including an accuracy and a response characteristic of a control for achieving...
6978628 Air conditioning device for vehicle  
When a preset protection temperature is exceeded, an air conditioning device for a vehicle equipped with air conditioner inverter protection means works to lower the output of the air conditioner...
6962058 Air conditioner and method of controlling such  
The object of this invention is to provide an air conditioner with a variable capacity compressor ( 2 ) parallely connected to a fixed capacity compressor ( 4 ), and a method of controlling the...
6955060 Air conditioner with control of compressor  
In an air conditioner, a target compressor rotation speed is determined based on a target air temperature, which represents an air conditioning load, when an electric compressor is started from a...
6948326 Apparatus for controlling operation of outdoor unit and its method  
The present invention discloses an apparatus and method for controlling an operation of an outdoor unit which can efficiently control the outdoor unit by mounting sensors on the outdoor unit. The...
6931873 Vehicle air conditioner  
In an air conditioner for a vehicle, when a target rotation speed of an electric compressor calculated by a target rotation speed calculating means is higher than an upper limit set by an upper...
6931872 Operation control device for cooling apparatus  
An electric motor 25 for driving a compressor 21 that composes a refrigerating cycle is speed-controlled by an inverter circuit 31 . When an inside temperature Tx detected by an inside...
6925824 Apparatus for driving a compressor and a refrigerating air conditioner  
An apparatus for driving a compressor comprises a compressor having a compression mechanism part for sucking a fluid to compress the same, and an electric motor for driving the compression...
6918261 Electric compressor with a motor, an electric circuit and a protective control means therefor  
In an electric compressor integrally comprising a compression mechanism, a motor and an electric circuit (inverter) for driving the motor, the electric circuit is protected from thermal damage. ...
6883333 Sensorless control of a harmonically driven electrodynamic machine for a thermoacoustic device or variable load  
The present invention provides a method of sensorless control of a linear reciprocating electrodynamic machine used for driving a thermoacoustic device, and/or a similar frequency dependent load....
6868686 Refrigeration cycle apparatus  
A refrigeration cycle apparatus having a linear compressor is provided with a volume circulation rate instruction unit for obtaining a volume circulation rate Vco of a refrigerant in accordance...
6862895 Semiconductor cooling device and method of controlling same  
A semiconductor cooling device includes at least one cold plate for cooling a semiconductor element, a condenser adapted to be cooled by a fan, and a refrigerant pump. The refrigerant pump is...
6860114 Cooling unit and container with this unit  
To provide a transportable cooling unit for maintaining a transport volume at a defined temperature, comprising a closed cooling circuit and a controller sensing a temperature present within said...
6829903 Air conditioner and method for operating air conditioner in cooling mode  
Disclosed are an air conditioner, which reduces an electric power consumption rate and rapidly copes with the requirements of a user, and a method for operating the air conditioner in a cooling...
6826922 Cooling system  
A system and method for cooling a room configured to house a plurality of computer systems. A heat exchanger unit is configured to receive air from the room and to deliver air to the room. The heat...
6813898 Refrigerated air freight container  
An electrically powered air freight container ( 1 ) includes an insulated housing ( 2 ) and a refrigeration unit ( 3 ). The refrigeration unit ( 3 ) is powered by a voltage and frequency converter...
6809484 Multiple electronically commutated motor control apparatus and method  
A cooling system includes multiple cooling fans, each driven by a corresponding fan motor controller. Each fan motor controller includes electronic commutation circuitry that is responsive to a...
6807819 Vapor compression refrigerant cycle  
In a vapor compression refrigerant cycle for an air conditioner, as a refrigerant pressure at an operation starting time of a compressor increases, a starting target rotational speed of the...
6798159 VSD control  
A variable speed drive control system operates a variable speed drive to power a first load from a power source simultaneously powering a second load. An AC reactive power is monitored which may...
6796137 Air conditioning system comprising an electronic control device  
The invention proposes an air conditioning system for motor vehicles which is fitted with an injection computer and an electronic control device. The system comprises a first measuring member...
6786056 Cooling system with evaporators distributed in parallel  
A system and method for cooling a room configured to house a plurality of computer systems. A plurality of evaporator units are arranged in parallel and are configured to receive air from the room...
6779354 Temperature control device of liquid cooling device  
In an oil conditioner comprising: a coolant oil circulation circuit ( 8 ) through which a coolant oil of a machine tool ( 1 ) is circulated by an oil pump ( 12 ); a refrigeration circuit ( 20 )...
6779353 Sealed system multiple speed compressor and fan control  
An apparatus and method for controlling a sealed system including a variable speed compressor coupled to a controller is described. The method includes establishing a control grid having at least...
6769265 Variable speed refrigeration system  
A refrigerator incorporates a variable speed refrigeration system including a variable speed compressor, an evaporator fan, a fresh food compartment stirring fan and a multi-position damper....
6745585 Electric air conditioner sustain system  
An electric air conditioner sustain system is disclosed. The electric air conditioner sustain system includes a compressor, an engine and an electric motor. The engine and the electric motor...
6735968 Refrigerating apparatus and an inverter device used therein  
A refrigerating apparatus comprises: a first substrate, on one surface of which an active converter and an inverter are mounted, and on a reverse surface of which a radiation fin is closely fixed;...
6732539 Air conditioning apparatus and control method thereof  
An air conditioning apparatus and control method thereof is provided, in which a pulse width modulation compressor and a two-stage variable-capacity compressor are connected in parallel with each...
6726113 Temperature control strategy utilizing neural network processing of occupancy and activity level sensing  
A temperature control system utilizes detected occupancy and activity levels to automatically condition a response of an HVAC system to a difference between a setpoint temperature and an actual...
6715305 Two-evaporator refrigerator having a controlled variable throttler  
A refrigerator has a refrigerant circuit that is comprised of; a power-variable two-stage compressor, a variable throttler, which are computer controlled; and a first evaporator for fresh food...
6691524 Methods and apparatus for controlling compressor speed  
A method for controlling a sealed system including a variable speed compressor coupled to a controller includes defining a first set of temperature ranges for operating the compressor during a...
Matches 1 - 50 out of 411 1 2 3 4 5 6 7 8 9 >