Regulating mechanism for the refrigerant flow to the evaporator or refrigerating systems or heat pumps and expansion valves arranged in the refrigerant flow
Patent 4787213 Issued on November 29, 1988. Estimated Expiration Date: 
December 9, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 9, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod and apparatus for controlling a refrigerant expansion valve in a refrigeration system System for controlling flow rate of refrigerant Patent #: 4674292 InventorsAssigneeApplicationNo. 06/940027 filed on 12/09/1986US Classes:62/212, Plural sensors at low side236/75Reciprocating or oscillatingExaminersPrimary: Wayner, William E.Attorney, Agent or FirmInternational ClassesF16K 31/04 (20060101)F25B 41/06 (20060101) Foreign Application Priority Data1986-01-22 DEAbstractAn expansion valve (8), which is arranged between the condenser (2) and the evaporator (3) in the pump medium circulation system of the heat pump and is continuously controllable, is regulated as a function of set values by means of a computer (10), in particular, while taking into account the evaporator input temperature measured by means of sensing devices (5) and/or the evaporator output temperature measured by means of sensing devices (6). Because of the regulating by means of computers, the control is suitable for different heat pumps and/or conditions of use without structurally altering the expansion valve (8). | |
