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:
Apr. 07, 2015
Filed:
Jan. 10, 2012
Dietmar Fischer, Cologne, DE;
Markus Markowitz, Cologne, DE;
Lambertus Wilhelmus Schmitz, Cologne, DE;
Dietmar Fischer, Cologne, DE;
Markus Markowitz, Cologne, DE;
Lambertus Wilhelmus Schmitz, Cologne, DE;
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A refrigerant line for carrying a mixture of refrigerant and lubrication oil. The line includes an inner casing made of a material impermeable to the refrigerant/oil mixture, an outer casing made of a material that is highly permeable to the refrigerant in its gaseous state, and an intermediate layer between the inner and outer casings made of a material that is high permeable to the gaseous refrigerant but that is able to retain the admixed oil. In this way, any oil contained in a refrigerant/oil mixture leaking through the inner casing is retained by the intermediate layer, while the refrigerant gas is allowed to escape through the outer two layers. The intermediate layer may retain the oil by absorption, by adsorption, or by binding of the oil.