The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2008
Filed:
Dec. 08, 2003
Hung M Pham, Dayton, OH (US);
Abtar Singh, Kennesaw, GA (US);
Jean-luc Caillat, Dayton, OH (US);
Mark Bass, Sidney, OH (US);
Hung M Pham, Dayton, OH (US);
Abtar Singh, Kennesaw, GA (US);
Jean-Luc Caillat, Dayton, OH (US);
Mark Bass, Sidney, OH (US);
Emerson Climate Technologies, Inc., Sidney, OH (US);
Abstract
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 type.