Cooled housing consisting of a turbine housing and a bearing housing for a turbocharger

Abstract

A housing of a turbo charger has a turbine housing and a bearing housing. A cooling jacket is formed of at least one or more shell elements that are fixed to the outside of the housing and that form therewith a cavity into which a coolant can be introduced.

1 - 20 . (canceled) 
     
     
         21 . A housing for a turbocharger, comprising:
 a turbine housing part and a bearing housing part of the turbocharger;   a cooling jacket formed of at least one or more shell elements attached to an outside of said housing and forming a hollow space together with said housing for receiving therein a coolant.   
     
     
         22 . The housing according to  claim 21 , wherein said turbine housing part and said bearing housing part of said housing are integrally formed in a one-piece part. 
     
     
         23 . The housing according to  claim 22 , wherein said turbine housing part and said bearing housing part of the housing are formed in a one-piece casting selected from the group consisting of an aluminum casting, a gray iron casting, and a steel casting. 
     
     
         24 . The housing according to  claim 21 , wherein said turbine housing part and said bearing housing part are two separate parts attached to one another. 
     
     
         25 . The housing according to  claim 23 , wherein one of said turbine housing part and said bearing housing part is formed with a seat to be pushed up to the respectively other housing part in order to join together said housing parts. 
     
     
         26 . The housing according to  claim 22 , wherein each of said turbine housing part and said bearing housing part is a separate casting selected from the group consisting of an aluminum casting, a gray iron casting, and a steel casting. 
     
     
         27 . The housing according to  claim 21 , wherein said shell element is a cast element. 
     
     
         28 . The housing according to  claim 27 , wherein said shell element is selected form the group consisting of an aluminum casting, a gray iron casting, and a steel casting. 
     
     
         29 . The housing according to  claim 27 , wherein said shell element is a pressure diecasting. 
     
     
         30 . The housing according to  claim 29 , wherein said pressure diecasting has a thickness of between 2 mm and 3 mm. 
     
     
         31 . The housing according to  claim 21 , wherein said shell element is a sheet component. 
     
     
         32 . The housing according to  claim 31 , wherein said a sheet component has a thickness of between 0.8 mm and 2 mm. 
     
     
         33 . The housing according to  claim 21 , wherein said cooling jacket is formed with at least one inlet connection for coolant into said hollow space and at least one outlet connection for the coolant. 
     
     
         34 . The housing according to  claim 33 , wherein said inlet and outlet connections are disposed adjacent one another or on a common side of the housing. 
     
     
         35 . The housing according to  claim 33 , which comprises a separating wall element formed between said inlet and outlet connections. 
     
     
         36 . The housing according to  claim 33 , wherein said inlet and outlet connections are formed substantially opposite one another on the housing. 
     
     
         37 . The housing according to  claim 21 , wherein said shell element is attached to the housing by at least one of welding, soldering, bolting, screwing, and/or gluing, and wherein said turbine housing part and/or said bearing housing part are optionally formed with attachment sections for seating said shell element. 
     
     
         38 . The housing according to  claim 21 , wherein said hollow space is formed to accommodate coolant in liquid form and/or gaseous form. 
     
     
         39 . The housing according to  claim 21 , wherein said hollow space is formed for coolant in the form of cooling water from an engine connected to a turbocharger in the housing. 
     
     
         40 . The housing according to  claim 21 , which comprises one or more flow elements disposed in said hollow space and formed on one of said housing or said shell element. 
     
     
         41 . The housing according to  claim 21 , wherein said shell element is one of two or more shell elements forming an outer wall of said cooling jacket. 
     
     
         42 . The housing according to  claim 21 , wherein said shell element is attached to the housing in a fluid-tight connection. 
     
     
         43 . The housing according to  claim 21 , wherein at least one of said turbine housing part, said bearing housing part, and said shell element is formed of steel. 
     
     
         44 . The housing according to  claim 43 , wherein said steel includes a lightly-alloyed steel. 
     
     
         45 . The housing according to  claim 21 , wherein at least one of said turbine housing part, said bearing housing part, and said shell element contain or consist of one or more of plastic and fiber-bonded material. 
     
     
         46 . The housing according to  claim 21 , wherein said bearing housing part is formed with one or more infeed lines for cooling a portion of or an entirety of a bearing assembly mounted in said bearing housing part. 
     
     
         47 . A turbocharger, comprising a housing according to  claim 21 .