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Class Information
Number: 62/228.3
Name: Refrigeration > Automatic control > Refrigeration producer > Compressor or its drive controlled > By refrigerant pressure
Description: Apparatus in which the compressor is controlled by a sensed condition of refrigerant pressure.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7421850 |
Refrigeration system and method of operating the same |
Sep. 9, 2008 |
| 7412841 |
Turbo chiller, compressor therefor, and control method therefor |
Aug. 19, 2008 |
| 7392659 |
Dynamic control of a variable displacement compressor |
Jul. 1, 2008 |
| 7389649 |
Cooling system with variable duty cycle capacity control |
Jun. 24, 2008 |
| 7356999 |
System and method for stability control in a centrifugal compressor |
Apr. 15, 2008 |
| 7302805 |
Sensor array used for monitoring at least two physical parameters |
Dec. 4, 2007 |
| 7287395 |
Distributed cooling system |
Oct. 30, 2007 |
| 7263849 |
Refrigerating system for refrigerator |
Sep. 4, 2007 |
| 7243502 |
Control system for variable displacement compressor |
Jul. 17, 2007 |
| 7234324 |
Method and installation for controlling at least one cryogenic centrifugal compressor compression line |
Jun. 26, 2007 |
| 7213405 |
Two-stage linear compressor |
May. 8, 2007 |
| 7210911 |
Controller for variable displacement compressor and control method for the same |
May. 1, 2007 |
| 7207379 |
Automotive air conditioning system |
Apr. 24, 2007 |
| 7207186 |
Refrigeration cycle |
Apr. 24, 2007 |
| 7201008 |
Vapor compression system performance enhancement and discharge temperature reduction in the unloaded mode of operation |
Apr. 10, 2007 |
| 7197890 |
Valve for preventing unpowered reverse run at shutdown |
Apr. 3, 2007 |
| 7165411 |
Control logic for HVAC heat management |
Jan. 23, 2007 |
| 7134294 |
Method and apparatus for refrigeration system control having electronic evaporator pressure regulators |
Nov. 14, 2006 |
| 7096683 |
Vehicle cooling system |
Aug. 29, 2006 |
| 7076963 |
Two-stage compressor for an automotive air conditioner, which can be driven by a vehicle running engine and an electric motor different therefrom |
Jul. 18, 2006 |
| 7047753 |
Refrigeration system and method of operating the same |
May. 23, 2006 |
| 7032394 |
Method and apparatus for checking a pressure monitoring device of a compression refrigerating plant |
Apr. 25, 2006 |
| 7028495 |
Refrigerant cycle apparatus |
Apr. 18, 2006 |
| 7024875 |
Air conditioning apparatus using variable displacement compressor |
Apr. 11, 2006 |
| 7013661 |
Wireless method for monitoring and controlling food temperature |
Mar. 21, 2006 |
| 7003968 |
Motor vehicle air-conditioning installation equipped with an electronic control device |
Feb. 28, 2006 |
| 6997003 |
Method to control high condenser pressure |
Feb. 14, 2006 |
| 6990823 |
Air conditioner |
Jan. 31, 2006 |
| 6983618 |
Method and apparatus for refrigeration system control having electronic evaporator pressure regulators |
Jan. 10, 2006 |
| 6973794 |
Refrigeration system and method of operating the same |
Dec. 13, 2005 |
| 6966194 |
Refrigerating machine |
Nov. 22, 2005 |
| 6955057 |
Control scheme and method for dehumidification systems at low ambient conditions |
Oct. 18, 2005 |
| 6939109 |
Pump control system |
Sep. 6, 2005 |
| 6931871 |
Boosted air source heat pump |
Aug. 23, 2005 |
| 6923016 |
Refrigeration cycle apparatus |
Aug. 2, 2005 |
| 6910344 |
Compressor torque estimate device, engine controller and method of estimating compressor torque |
Jun. 28, 2005 |
| 6904762 |
Pump pressure limiting method |
Jun. 14, 2005 |
| 6895769 |
Air conditioning apparatus using supercritical refrigerant for vehicle |
May. 24, 2005 |
| 6893227 |
Device for prevention of backward operation of scroll compressors |
May. 17, 2005 |
| 6843067 |
Air conditioner and method for controlling electronic expansion valve of air conditioner |
Jan. 18, 2005 |
| 6834511 |
Vehicle air conditioning apparatus |
Dec. 28, 2004 |
| 6817198 |
Method and apparatus for variable frequency controlled compressor and fan |
Nov. 16, 2004 |
| 6817193 |
Method for operating a refrigerant circuit, method for operating a motor vehicle driving engine, and refrigerant circuit |
Nov. 16, 2004 |
| 6807819 |
Vapor compression refrigerant cycle |
Oct. 26, 2004 |
| 6807818 |
Compressor system and vehicle air conditioning system having the same |
Oct. 26, 2004 |
| 6804970 |
Method of controlling refrigeration cycle |
Oct. 19, 2004 |
| 6796137 |
Air conditioning system comprising an electronic control device |
Sep. 28, 2004 |
| 6772990 |
Capacity control valve |
Aug. 10, 2004 |
| 6766653 |
Method for controlling operation of a multi-air conditioner |
Jul. 27, 2004 |
| 6745584 |
Digital scroll condensing unit controller |
Jun. 8, 2004 |
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