|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||062/228.1; 062/228.3; 062/228.4; 062/228.5; 062/222; 062/223; 062/224; 062/225; 062/125; 062/126; 062/127|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 21 인용 특허 : 54|
A control system for a cooling system includes a first sensor for sensing a property indicative of demand for cooling and a controller coupled to the sensor. The controller produces the variable duty cycle control signal in response to the property and causes the compressor and valve to vary a cooling capacity of the cooling system in response to the variable duty cycle control signal. The sensor may sense the pressure, temperature, or both. The valve may be a suction-side pressure regulator or a liquid-side expansion valve of the solenoid or stepper typ...
We claim: 1. A control system for a cooling system having a compressor and a valve, said control system comprising: a first sensor for sensing a property indicative of demand for cooling; a controller coupled to said sensor and operable to produce a variable duty cycle control signal in response to said property, said controller modulating a capacity of said compressor and a position of said valve according to the same variable duty cycle control signal to vary a cooling capacity of the cooling; and a diagnostic module for comparing said duty cycle with...