Patent ID: 6178764
Filing Date: 2001-01-30
Classification: B60H,F24F

Abstract:
An air conditioning system comprising a heat exchanger (1), a blower (3) for blowing air under pressure to said heat exchanger (1), and an air conditioning casing (4) constituting at least a part of an air path (40) for leading the air blown under pressure from said blower (3) to said heat exchanger (1); whereinsaid blower (3) is a centrifugal type including a spiral scroll casing (31) and a multi-blade fan (32),a portion of said air path (40) upstream of said heat exchanger (1) is formed with a turning section (7) for causing the air flow to impinge thereon and change the direction thereof toward the heat exchanger (1), anda sound absorbing member (8) is arranged over the portions extending from a spiral end (31b) of an inner wall (31a) of said spiral scroll casing where the air flow generated in a radial direction in said scroll casing (31) impinges and changes direction, to an inner wall (4a) of said air conditioning casing (4) smoothly connected to the inner wall of said spiral end (31b).