Patent ID: 6246134
Filing Date: 2001-06-12
Classification: H02K

Abstract:
An apparatus for applying totally enclosed air to an electrical power generator, the apparatus comprising:a housing;an electrical power generator positioned in said housing so that at least an interstitial space is formed between inner walls of said housing and outer surfaces of the electrical power generator; andair-to-air heat transferring means positioned in fluid communication with air contacting the electrical power generator and in the interstitial space within said housing for receiving relatively hot air from the electrical power generator, transferringly cooling the relatively hot air with relatively cooler air received from outside the housing without allowing the relatively hot air to contact and mix with the relatively cooler air, and supplying cooled air from within said housing to the power generator, the air-to-air heat transferring means including:a heat transfer device having a body, a first plurality of air flow passageways formed in the body to allow relatively hot air received from the electrical power generator to be cooled to flow therethrough in a first predetermined direction;a second and separate plurality of air flow passageways formed in the body to allow relatively cooler air received from outside of the housing to be heated to flow therethrough in a second predetermined direction without contact or mixing with the relatively hot air;at least one air circulator positioned in fluid communication with the heat transfer device for supplying cool air to the heat transfer device and withdrawing heated air from the heat transfer device; anda liquid coolant sprayer positioned adjacent the at least one air circulator to sprayingly supply droplets of liquid coolant to the cool air to enhance cooling of the air received by the second plurality of air flow passageways to be used to transferringly cool the relatively hot air to be cooled within the first plurality of air flow passageways.