Hot gas blowing fan
AssigneeCap Corporation
InventorKimihiko Sato
Life of this patent
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Abstract
A hot-gas blowing fan suitable for recirculation of fuel in a solid oxide fuel cell is presented, which comprises a completely gas-tight sealing means and a cooling means using air and which is of a simple structure without employing any utility other than a power source. A completely gas-tight sealing means is formed by disposing a non-magnetic partition wall 11 in a clearance between a fan shaft side magnetic coupling 9 and a motor shaft side magnetic coupling 10 so that the non-magnetic partition wall 11 and a casing 12 hermetically seal a space surrounding a rotating shaft 6 from the outer field, and an air cooling means is constituted by a heat receiving portion 28, a heat transporting portion 29 and an air-cooling/radiating portion 30.
Claims7
A hot-gas blowing fan comprising a heat resisting impeller cantilevered by a rotating shaft, a bearing attached to the rotating shaft, a heat insulating layer disposed between the impeller and the bearing and a cooling portion disposed between the heat insulating layer and the bearing, wherein a first coupling to be mated with another magnetic coupling is disposed on the shaft end of the rotating shaft at the side opposite to the impeller and a non-magnetic partition wall is disposed between the first coupling and a second coupling to be mated with the first magnetic coupling is disposed on the shaft end of the driving shaft of a motor, whereby a space surrounding the rotating shaft is hermetically sealed from an outer field by the non-magnetic partition wall and a casing.
A hot-gas blowing fan comprising a heat resisting impeller cantilevered by a rotating shaft, a bearing attached to the rotating shaft, a heat insulating layer disposed between the impeller and the bearing, which further comprises an air cooling means comprising a heat receiving portion disposed between the heat insulating layer and the bearing, an air cooling/radiating portion provided at an outer side of a casing and a heat transporting portion connecting the heat receiving portion to the air cooling/radiating portion.
Dependencies are inferred from the claim text.