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:
Nov. 16, 2010
Filed:
May. 07, 2009
Daniel Reich, Tucson, AZ (US);
Michael Burdett, Tucson, AZ (US);
Vladimir Reich, Tucson, AZ (US);
Other;
Abstract
A control system measures the pressure/temperature of the refrigerant within a Thermal Energy Module having a heat exchanger and calculates the thickness of ice within the Thermal Energy Module. A controller calculates an integral starting from the moment when ice accumulation begins: I(t)=∫Tr(τ)*dτ where Tr is the refrigerant saturation temperature changing with time t. The thickness of the ice on one side of the heat exchanger can be calculated using the following formula: X=√(2*I*K*Ui/ρi/ci) where Ui is the thermal conductance of ice ρi is the density of the ice Ci is the latent heat of the ice K is a correction coefficient associated with the type of the heat exchanger.