Patent ID: 6575701
Filing Date: 2003-06-10
Classification: B60H,F04D

Abstract:
A blower for a vehicle, comprising:a centrifugal fan which draws air along a fan rotational axis and which blows air radially away from the fan rotational axis; a scroll casing which houses the centrifugal fan, the scroll casing defining a passage for the air to be blown from the centrifugal fan; and a drive means for rotating the centrifugal fan, wherein the size of a portion of the scroll casing parallel to the rotational axis is nearly constant from a start-of-winding position to an end-of-winding position in the scroll casing, a suction port is formed in a portion of the scroll casing corresponding to a first end of the rotational axis, while in a portion of the scroll casing corresponding to a second end of the rotational axis the drive means is fixed to the scroll casing by a mounting member, a fan datum line which passes through an approximately middle part of the centrifugal fan in the rotational axis direction is offset to the suction port side with respect to a casing datum line which passes through an approximately middle part of the portion of the scroll casing parallel to the rotational axis, and a flange portion of the mounting member, the flange portion facing the centrifugal fan and lying in a position offset to the first end of the scroll casing along the rotational axis rather than the second end of the rotational axis.