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:
Dec. 25, 2007
Filed:
Nov. 18, 2004
Kenneth Meldahl, Fox Lake, IL (US);
Dean Pfefferle, Elgin, IL (US);
Craig Govekar, Gurnee, IL (US);
Anwar Suharno, Barrington, IL (US);
Larry Moller, Harvard, IL (US);
Kenneth Meldahl, Fox Lake, IL (US);
Dean Pfefferle, Elgin, IL (US);
Craig Govekar, Gurnee, IL (US);
Anwar Suharno, Barrington, IL (US);
Larry Moller, Harvard, IL (US);
Snap-On Incorporated, Pleasant Prairie, WI (US);
Abstract
A charging system for charging a refrigeration system of a vehicle includes a controller, a refrigerant source, at least one line fluidly connecting the refrigerant source to the refrigeration system; a control valve disposed to control flow of the refrigerant from the refrigerant source to the refrigeration system, and an efficiency sensor for measuring the efficiency of the refrigeration system. The controller operates to cause the charging system to input into the refrigeration system a predetermined amount of refrigerant less than a recommended refrigerant charge amount; measure a baseline efficiency of the refrigeration system, input a supplemental amount of refrigerant into the refrigeration system, measure an adjusted efficiency of the refrigeration system, and compare the measured adjusted efficiency to the baseline efficiency using the controller.