Patent ID: 7802614
Filing Date: 2010-09-28
Classification: H02K

Abstract:
1. A spa having an electric spa pump motor having a ring heat exchanger, the spa comprising: a spa tub having a spa tub wall; water residing in the spa tub; at least one drain for receiving a flow of the water from the spa tub; a spa pump; a first pipe carrying the flow of water from the drain to the spa pump; second pipes carrying the flow of water from the spa pump to jets in the spa tub wall; a spa pump motor having a motor housing for turning the spa pump; at least one ring heat exchanger comprising a top half assembled to a bottom half, each half being approximately half of a circle, the ring heat exchanger residing in contact with the motor housing at an end of the motor housing and having a ring width W a first water line carrying at least a portion of the flow of water to the at least one ring heat exchanger; and a second line carrying at least a portion of the flow of water from the at least one ring heat exchanger, wherein