Turbine housing of turbocharger for vehicle

Abstract

A turbine housing of a turbocharger for a vehicle that may be connected to an exhaust manifold and in which a turbine wheel may be rotated using kinetic energy of exhaust gas therein, may include a turbine wheel accepting portion having a circular hole shape so as to receive the turbine wheel therein, a scroll portion surrounding the turbine wheel accepting portion therein, wherein an exhaust gas passage may be formed along a rotating direction of the turbine wheel through the scroll portion, a partition dividing the exhaust gas passage of the scroll portion into at least two passages, and a slit formed at the partition in a radial direction of the partition.

What is claimed is: 
     
         1 . A turbine housing of a turbocharger for a vehicle that is connected to an exhaust manifold and in which a turbine wheel is rotated using kinetic energy of exhaust gas therein, the turbine housing comprising:
 a turbine wheel accepting portion having a circular hole shape so as to receive the turbine wheel therein;   a scroll portion surrounding the turbine wheel accepting portion therein, wherein an exhaust gas passage is formed along a rotating direction of the turbine wheel through the scroll portion;   a partition dividing the exhaust gas passage of the scroll portion into at least two passages; and   a slit formed at the partition in a radial direction of the partition.   
     
     
         2 . The turbine housing of  claim 1 , wherein the partition includes:
 a scroll wall extending from an inner surface of the scroll portion toward a center of the turbine housing; and   a scroll tip formed at an end portion of the scroll wall, wherein the scroll tip is thinner than the scroll wall.   
     
     
         3 . The turbine housing of  claim 2 , wherein the scroll portion includes inner rims extending from an inner surface of the turbine housing and the scroll tip is disposed between the rims to deliver the exhaust gas to the turbine wheel through openings formed between the rims and the scroll tip. 
     
     
         4 . The turbine housing of  claim 3 , wherein a diameter of the rims is shorter than that of the scroll tip. 
     
     
         5 . The turbine housing of  claim 1 , wherein at least a portion of the exhaust gas passage of the scroll portion is open toward the turbine wheel so as to deliver the kinetic energy of the exhaust gas to the turbine wheel. 
     
     
         6 . The turbine housing of  claim 1 , wherein a width of the slit is constant along the radial direction of the partition. 
     
     
         7 . The turbine housing of  claim 6 , wherein the width of the slit is between approximately 0.2 mm and approximately 0.4 mm.