Patent ID: 7883053

Claim:
A method for transferring heat, comprising: directing a first fluid from a first aircraft engine starter/generator to a heat exchanger along a first flow path, wherein the first fluid includes a first cooling fluid; directing a second fluid from a second aircraft engine starter/generator to the heat exchanger along a second flow path, wherein the second fluid includes a second cooling fluid; directing a third fluid along a third flow path proximate to both the first and second flow paths, wherein the third fluid includes air, and wherein directing the third fluid includes directing the third fluid to the heat exchanger; transferring heat between the third fluid and the second fluid at a first transfer rate when the first fluid carries heat at a first rate; and transferring heat between the third fluid and the second fluid at a second transfer rate different than the first transfer rate when the first fluid does not carry heat or carries heat at a second rate less than the first rate.