Patent ID: 8376698

Claim:
A pump assembly with a housing formed of at least two metallic housing parts ( 2 ) and at least one diffuser ( 12 ) arranged in the housing, wherein the diffuser ( 12 ) is fixed between the two housing parts ( 2 ) in the axial direction (X), wherein the two housing parts ( 2 ) are directly or indirectly in metallic contact with one another in a manner such that a force transmission in the axial direction between the housing parts ( 2 ) is effected via elements of metal, wherein the diffuser ( 12 ) is manufactured of plastic and comprises at least one metallic element ( 14 ), the at least one metallic element ( 14 ) being cast into the plastic of the diffuser ( 12 ), and wherein at least a portion of the at least one metallic element ( 14 ) is positioned axially between and separates axial ends ( 18 ) of the two housing parts ( 2 ).