Patent ID: 9383144
Filing Date: 2016-07-05
CPC Classification: F01M,F28D,F28F

Claim Text:
1. A heat exchanger unit for exchanging heat between a first flow and a second flow, comprising: an engine chamber having a first flow outlet; and an adapter plate extending around and enclosing an opening of the engine chamber, wherein the adapter plate has a first flow inlet fully receiving the first flow and a first flow inlet chamber; an orifice plate having a first orifice opening and a second orifice opening; a plate stack attached to the orifice plate such that the plate stack is disposed within the engine chamber, including; a plurality of plates, wherein adjacent plates are joined along their peripheries to form a plurality of first heat exchanger ducts and a plurality of second heat exchanger ducts, the plurality of first heat exchanger ducts formed by the plurality of plates connected by a first collecting duct and a first distributor duct formed in the plates, and wherein the first distributor duct is aligned with the second orifice opening and the first collecting duct includes a first collecting duct opening from which the partial first flow exits the plate stack, and the plurality of second heat exchanger ducts formed by the plurality of plates, and connected by a second collecting duct and a second distributor duct formed in the plates; and whereby the first flow inlet chamber fully receives the first flow from the first flow inlet and branches the first flow partially to the first orifice opening into the engine chamber and partially to the second orifice opening into the plate stack such that part of the first flow contacts an outer surface of the plate stack in the engine chamber while another part of the first flow passes through the plurality of first heat exchanger ducts within the plate stack wherein the first flow merges upstream of the first flow outlet and the first flow outlet fully receives the first flow.