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:
May. 18, 1999
Filed:
Mar. 31, 1997
Heinz Jaster, Schenectady, NY (US);
Jin-Koo Park, Seoul, KR;
General Electric Company, Schenectady, NY (US);
Abstract
A refrigeration system is disposed within a refrigerator having a freezer compartment and a refrigeration compartment. The refrigeration system includes an evaporator having an inlet and an outlet. A damper is positioned so as to direct air flow into the freezer compartment or the refrigeration compartment and correspondingly block air flow to the other. A compressor is coupled to the evaporator via a conduit and a control valve is coupled to the inlet of the evaporator to control flow of refrigerant. A condenser is coupled to the control valve by a liquid line. A first temperature sensor is positioned so as to detect refrigerant temperature within the evaporator and a second temperature sensor is positioned so as to detect refrigerant temperature at the outlet of the evaporator. A first controller is coupled to the control valve and to the first and second temperature sensors to receive temperature signals therefrom. A second controller is coupled to the compressor to provide compressor signals thereto and to the damper to send damper signals thereto. The first controller controls the duty cycle of the control valve.