Patent ID: 8123501

Claim:
A turbocharger housing comprising a main body that bears a shaft that carries a turbine wheel and a compressor wheel, a seal portion that seals a clearance between the shaft and the turbocharger housing, the seal portion disposed axially between a main body space and a compressor wheel space, and an O-ring, characterized in that said seal portion is formed by an insert fitted to the main body, wherein said insert comprises a passage that supplies a fluid to said seal portion wherein said passage comprises a partial bore that intersects a through bore, wherein said partial bore comprises an open end that faces said main body, and wherein said through bore comprises an open end at an inner circumference of said insert and a sealable end at an outer circumference of said insert that faces a radial surface of said main body wherein said insert comprises an annular groove along said outer circumference of said insert, said O-ring seated in said annular groove and making direct contact with said sealable end of said through bore thereby sealing said sealable end of said through bore.