Axial flow fluid device

Abstract

An axial flow fluid device in which blade rows having radially-arranged blades are provided in a flow passage of a fluid (Y). The axial flow fluid device includes a turbulent flow eliminating device for eliminating turbulent flow components (Y 1 to Y 4 ) in the fluid (Y) supplied to the blade rows. The axial flow fluid device reduces a broadband noise component out of components of noise generated by interference between the fluid and the blades.

1 . An axial flow fluid device in which a blade row having radially-arranged blades is provided in a flow passage of a fluid, the device comprising:
 a turbulent flow eliminating device for eliminating a turbulent flow component in the fluid supplied to the blade row.   
   
   
       2 . An axial flow fluid device according to  claim 1 , wherein the turbulent flow eliminating device comprising:
 an inlet port through which the turbulent flow component is introduced;   an outlet port through which the turbulent flow component is discharged; and   a passage portion which connects the inlet port and the outlet port.   
   
   
       3 . An axial flow fluid device according to  claim 2  wherein the inlet port is radially formed around the entire circumference of the inner wall portion of the flow passage. 
   
   
       4 . An axial flow fluid according to  claim 2 , wherein the inlet port faces a direction in which the fluid flows in the flow passage. 
   
   
       5 . An axial flow fluid device according to  claim 2 , further comprising an opening and closing device for opening and closing the inlet port. 
   
   
       6 . An axial flow fluid device according to  claim 4 , further comprising an opening and closing device for opening and closing the inlet port. 
   
   
       7 . An axial flow fluid according to  claim 3 , wherein the inlet port faces a direction in which the fluid flows in the flow passage. 
   
   
       8 . An axial flow fluid device according to  claim 3 , further comprising an opening and closing device for opening and closing the inlet port.