Patent ID: 8491270
Filing Date: 2013-07-23
Classification: F04D,F05D

Abstract:
1. A vehicle heat-exchange module comprising a rectangular heat exchanger and a fan unit provided at the downstream side of the heat exchanger, wherein the fan unit is provided with a shroud having a bell-mouth and an annular opening, a propeller fan that is disposed in the annular opening of the shroud, and a fan motor that rotationally drives the propeller fan, wherein the fan unit is a unit having a single-fan configuration in which fan motor input power is at a predetermined level or less, and wherein the propeller fan is provided with a plurality of blades each having a pressure surface and a suction surface, each of the pressure surface and the suction surface of the blade is provided with at least two winglets with a prescribed gap therebetween in the radial direction, and each winglet is provided upright on the pressure surface or the suction surface of a root side of the blade, and along the circumferential direction.