Turbine housing assembly and manufacturing method of turbine housing assembly
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F04D-029/40
F01D-009/02
B23P-019/04
F04D-017/10
출원번호
US-0387104
(2013-03-22)
등록번호
US-9835165
(2017-12-05)
우선권정보
JP-2012-068209 (2012-03-23)
국제출원번호
PCT/JP2013/058389
(2013-03-22)
국제공개번호
WO2013/141379
(2013-09-26)
발명자
/ 주소
Jinnai, Yasuaki
Arimizu, Hiroyuki
Kramer, Koen
출원인 / 주소
MITSUBISHI HEAVY INDUSTRIES, LTD.
대리인 / 주소
Birch, Stewart, Kolasch & Birch, LLP
인용정보
피인용 횟수 :
0인용 특허 :
4
초록▼
A turbine housing assembly includes a plurality of constituent members connected to one another and easily manufactured. The turbine housing assembly includes a scroll part, an annular lid part, an exhaust gas outlet and a connection part connectable to a bearing housing for a turbine shaft. The scr
A turbine housing assembly includes a plurality of constituent members connected to one another and easily manufactured. The turbine housing assembly includes a scroll part, an annular lid part, an exhaust gas outlet and a connection part connectable to a bearing housing for a turbine shaft. The scroll part and the connection part are each formed of a single piece of sheet metal and each is welded to the annular lid part that is orthogonal to a turbine axial direction so that the scroll part and the connection part are connected to each other via the annular lid part. Such a turbine housing assembly is of reduced weight, is quite easy to manufacture, of reduced cost, and can be made, at least in part, of materials having lower heat capacity as compared to conventional turbine housings made of sheet metal.
대표청구항▼
1. A turbine housing assembly including a plurality of constituent members connected to one another to constitute a turbine housing into which a turbine wheel rotated by exhaust gas introduced from an engine is inserted, the turbine housing assembly at least comprising: a scroll part made of sheet m
1. A turbine housing assembly including a plurality of constituent members connected to one another to constitute a turbine housing into which a turbine wheel rotated by exhaust gas introduced from an engine is inserted, the turbine housing assembly at least comprising: a scroll part made of sheet metal having a bottomed cylindrical shape, a surrounding wall part and a bottom face part, the scroll part including: an exhaust gas flow path of a spiral shape formed inside the bottomed cylindrical shape and configured such that exhaust gas that has flowed in from an exhaust gas inlet flows through the exhaust gas flow path; andan exhaust gas outlet having a through hole formed on the bottom face part, the exhaust gas outlet being configured such that the exhaust gas that has flowed through the exhaust gas flow path flows out from the exhaust gas outlet;a connection part made of sheet metal and connectable to a bearing housing that houses a bearing for supporting a rotation shaft of the turbine wheel, said connection part comprising bushing holes,an annular lid part orthogonal to a turbine axial direction, the scroll part being welded to one surface of the annular lid part and the connection part being welded to the other surface of the annular lid part, whereinthe annular lid part includes a flat plate-like part of an annular shape and a positioning portion protruding outwardly from the flat plate-like part, andan end face of a threaded bushing is inserted into a bushing insertion hole formed on the connection part and connected to the positioning portion of the annular lid part. 2. The turbine housing assembly according to claim 1, wherein the connection part is made of a material that has lower heat resistance strength than the scroll part. 3. The turbine housing assembly according to claim 2, wherein the connection part is made of a material that contains less nickel than the scroll part. 4. The turbine housing assembly according to claim 1, wherein the annular lid part comprises a separate body separate from the scroll part and the connection part. 5. The turbine housing assembly according to claim 4, wherein the annular lid part is formed of a single piece of sheet metal. 6. The turbine housing assembly according to claim 4, further comprising an exhaust part of a tubular shape comprising a separate body separate from the scroll part, wherein the exhaust part is connected to the scroll part in the turbine axial direction so that the exhaust part is in communication with the exhaust gas outlet. 7. The turbine housing assembly according to claim 1, further comprising a variable nozzle mechanism configured to adjust flow of the exhaust gas flowing toward the turbine wheel, the variable nozzle mechanism being inserted into the scroll part and the connection part. 8. A manufacturing method for a turbine housing assembly including a plurality of constituent members connected to one another to constitute a turbine housing into which a turbine wheel rotated by exhaust gas introduced from an engine is inserted, the manufacturing method comprising: forming a scroll part of a single piece of sheet metal, the scroll part having:a bottomed cylindrical shape including a surrounding wall part and a bottom face part;an exhaust gas flow path of a spiral shape formed inside the bottomed cylindrical shape, the exhaust gas flow path being configured such that exhaust gas that has flowed in from an exhaust gas inlet flows through the exhaust gas flow path; andan exhaust gas outlet having a through hole formed on the bottom face part, the exhaust gas outlet being configured such that the exhaust gas that has flowed through the exhaust gas flow path flows out from the exhaust gas outlet;forming a connection part of a single piece of sheet metal, the connection part being connectable to a bearing housing that houses a bearing for supporting a rotation shaft of the turbine wheel, said connection part comprising bushing insertion holes;forming an annular lid part of a flat plate-like annular shape of a single piece of sheet metal, the annular lid part including a flat plate-like part of an annular shape and a positioning portion protruding outwardly from the flat plate-like part; andarranging the annular lid part to be orthogonal to a turbine axial direction, welding the scroll part to one side of the annular lid part, and welding the connection part to other side of the annular lid part, whereinsaid method further comprising inserting an end face of a threaded bushing into a bushing insertion hole formed on the connection part and connecting the connecting part to the positioning portion of the annular lid part. 9. The manufacturing method for a turbine housing assembly according to claim 8, further comprising preparing an exhaust part of a tubular shape comprising a separate body separate from the scroll part, and connecting the exhaust part to the scroll part in the turbine axial direction so that the exhaust part is in communication with the exhaust gas outlet of the scroll part.
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이 특허에 인용된 특허 (4)
Grussmann,Elmar; Smatloch,Christian; Hinder,Axel; K?rner,Thomas; M?ller,Rainer, Casing arrangement for a turbocharger of an internal combustion engine.
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