US2020254515A1PendingUtilityA1

Cast Component Having a Cast-In Pipe and Production Method

Assignee: ZAHNRADFABRIK FRIEDRICHSHAFENPriority: Sep 29, 2017Filed: Aug 14, 2018Published: Aug 13, 2020
Est. expirySep 29, 2037(~11.2 yrs left)· nominal 20-yr term from priority
Inventors:Jan Göbel
B32B 15/012B32B 15/01B32B 1/08B22D 19/04B22D 19/0072
37
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Claims

Abstract

A metallic cast component ( 100 ), which is a housing component, includes a cast body ( 110 ) and at least one pipe ( 120 ) cored in the cast body ( 110 ) and through which a medium (F) is flowable. The pipe ( 120 ) includes a pipe connection ( 121, 122 ) formed at or in a surface of the cast body ( 110 ) on at least one of pipe end of the pipe ( 120 ). The pipe ( 120 ) also includes, at the pipe end, an enclosing bush ( 130 ) embedded in the cast body ( 110 ). The enclosing bush ( 130 ) effectuating a seal between the pipe end and the cast body ( 110 ). A method for manufacturing such a cast component ( 100 ) is also provided.

Claims

exact text as granted — not AI-modified
1 - 10 : (canceled) 
     
     
         11 . A metallic cast component ( 100 ), comprising:
 a cast body ( 110 ); and   at least one pipe ( 120 ) cast in the cast body ( 11 ) and through which a medium (F) is flowable, the pipe ( 120 ) comprises a pipe connection ( 121 ,  122 ) formed at or in a surface of the cast body ( 110 ) on at least one of pipe end of the pipe ( 120 ), c   wherein the pipe ( 120 ) also comprises an enclosing bush ( 130 ) at the pipe end, the enclosing bush ( 130 ) embedded in the cast body ( 110 ) and effectuating a seal between the pipe end and the cast body ( 110 ).   
     
     
         12 . The cast component ( 100 ) of  claim 11 , wherein the pipe ( 120 ) is a metal pipe. 
     
     
         13 . The cast component ( 100 ) of  claim 11 , wherein the bush ( 130 ) is a metal bush integrally bonded with an enclosing casting material (M) of the cast body ( 110 ). 
     
     
         14 . The cast component ( 100 ) of  claim 13 , wherein the casting material (M) is an aluminum alloy and the metal bush ( 130 ) is made of a zinc alloy. 
     
     
         15 . The cast component ( 100 ) of  claim 11 , wherein the bush ( 130 ) has a radial thickness of no less than three millimeters and no greater than then millimeters. 
     
     
         16 . The cast component ( 100 ) of  claim 11 , wherein the bush ( 130 ) has an axial length of no less than ten millimeters and no greater than fifteen millimeters. 
     
     
         17 . The cast component ( 100 ) of  claim 11 , wherein the cast body ( 110 ) is a transmission housing component. 
     
     
         18 . A method for manufacturing a cast component ( 100 ), which comprises a cast body ( 110 ) and a pipe ( 120 ) cast in the cast body ( 110 ) and through which a medium (F) is flowable, the method comprising:
 installing at least one bush ( 130 ) on at least one pipe end of the pipe ( 120 );   placing the pipe ( 120 ) into a mold and casting the cast component ( 100 ), wherein the pipe ( 120 ) is encapsulated in molten metal and the bush ( 130 ) is embedded into the cast body ( 110 ) during the casting of the cast component ( 100 );   removing the cast component ( 100 ) from the mold once the molten metal has solidified; and   producing at least one pipe connection ( 121 ,  122 ) by refinishing one or more of the at least one pipe end and the at least one bush ( 130 ).   
     
     
         19 . The method of  claim 18 , wherein the pipe ( 120 ) is a metal pipe, and the metal pipe is placed into the mold and is encapsulated in a cold condition. 
     
     
         20 . The method of  claim 18 , wherein each of the at least one bush ( 130 ) comprises a cover ( 131 ) that closes a respective one of the at least one pipe end during casting and is removed during the refinishing.

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