Patent ID: 8199505

Claim:
A jet impingement heat exchanger comprising: an inlet jet operable to produce a jet of a coolant fluid; a target layer comprising an impingement region and a plurality of target layer microchannels, wherein the target layer microchannels radially extend from the impingement region, the jet of the coolant fluid impinges the target layer at the impingement region, and the coolant fluid flows through the radially-extending target layer microchannels toward a perimeter of the target layer; a second layer comprising a plurality of radially-extending second layer microchannels; a transition channel positioned between the target layer and the second layer, wherein the transition channel fluidly couples the second layer to the target layer, and the coolant fluid flows through the transition channel and the plurality of radially-extending second layer microchannels; and a fluid outlet fluidly coupled to the second layer, wherein the coolant fluid flows from the plurality of radially-extending second layer microchannels though the fluid outlet.