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. 13, 2018
Filed:
Jun. 17, 2015
Heat exchanger assembly having a refrigerant distribution control using selective tube port closures
Mahle International Gmbh, Stuttgart, DE;
Donald R. Pautler, Lockport, NY (US);
Douglas C. Wintersteen, Burt, NY (US);
Neil A. Walkowski, Orchard Park, NY (US);
Longhu Li, Williamsville, NY (US);
Wayne O. Forrest, Gasport, NY (US);
Shrikant M. Joshi, Williamsville, NY (US);
MAHLE International GmbH, Stuttgart, DE;
Abstract
A heat exchanger assembly having a first manifold, a second manifold spaced from the first manifold, and a plurality of refrigerant tubes in hydraulic communication with the first manifold and the second manifold. The second manifold includes a first end, a second end opposite from the first end, and a refrigerant inlet adjacent the first end. The plurality of refrigerant tubes includes tube ports. A portion of the tube ports are selectively obstructed such that a refrigerant entering into the second manifold through the refrigerant inlet flows substantially uniformly across the plurality of refrigerant tubes from the second manifold to the first manifold. At least one of the obstructed tube ports includes an inserted sliver of braze amendable material, pinched closed, or formed by inserting a pin of reduced diameter into the selected ports and then squeezing the port from the outside to size it and then removing the pin.