Patent ID: 8240367

Claim:
A heat exchanger, comprising: a heat exchanger assembly including a port for passage of a heat exchanging fluid, a port manifold extending from the port and having a length and a port manifold diameter, and heat transfer elements disposed along the length of the port manifold and having flow channels in communication with the port manifold for passage of the heat exchanging fluid to accomplish heat exchange; and an insert disposed in the port manifold of the heat exchanger assembly, the insert comprising a converging nozzle, a tubular body extending from the converging nozzle and an outlet formed in the tubular body, wherein the converging nozzle extending into the port manifold and having a hollow interior with decreasing internal diameter such that the internal diameter of the converging nozzle adjacent the port is greater than the internal diameter of the converging nozzle adjacent the tubular body, wherein the tubular body has a tubular body internal diameter that is less than the port manifold diameter, and wherein the outlet having a periphery and a rounded lip extending about the periphery, and wherein heat exchanging fluid flows between the port and the port manifold via the insert through the converging nozzle, the tubular body and the outlet, wherein a flow space is defined along the length of the port manifold and extends between the tubular body and the heat transfer elements, wherein the heat transfer elements comprise a pack of heat exchanger plates coupled together in a stacked, spaced relationship, and the flow channels are formed between adjacent heat exchanger plates, wherein the insert extends in a first direction coextensive with the port and the heat exchanger plates are stacked in the first direction such that the flow channels extend in a second direction substantially perpendicular to the first direction, wherein the pack of heat exchanger plates includes at least two entrance plates disposed adjacent to the port, wherein the insert extends at least as far as the entrance plates into the port manifold.