The invention relates to a turbine casing (1) of an exhaust-gas turbocharger (62), having an inlet connection piece (2) adjoined by a spiral (3), and having an outlet connection piece (4), characterized by an insulating device (5) for reducing the input of heat into the inlet connection piece (2), t
The invention relates to a turbine casing (1) of an exhaust-gas turbocharger (62), having an inlet connection piece (2) adjoined by a spiral (3), and having an outlet connection piece (4), characterized by an insulating device (5) for reducing the input of heat into the inlet connection piece (2), the spiral (3) and/or the outlet connection piece (4).
대표청구항▼
1. A turbine casing (1) of an exhaust-gas turbocharger (62) having an inlet connection piece (2) adjoined by a spiral (3), andhaving an outlet connection piece (4), characterized byan insulating device (5) for reducing the input of heat into the inlet connection piece (2), the spiral (3) and/or the
1. A turbine casing (1) of an exhaust-gas turbocharger (62) having an inlet connection piece (2) adjoined by a spiral (3), andhaving an outlet connection piece (4), characterized byan insulating device (5) for reducing the input of heat into the inlet connection piece (2), the spiral (3) and/or the outlet connection piece (4), wherein the insulating device (5) comprises a wastegate arrangement (49, 50) which extends outside the turbine casing (1). 2. The turbine casing as claimed in claim 1, wherein the insulating device (5) comprises a sleeve (8) which can be inserted into the inlet connection piece (2) to form a gap (7). 3. The turbine casing as claimed in claim 1, wherein the insulating device (5) comprises a sleeve (12) which can be inserted into the outlet connection piece (4) to form a gap (15). 4. The turbine casing as claimed in claim 1, further comprising a sleeve (12) extending from the spiral (3), wherein the insulating device (5) comprises a fiber mat (15′) which can be inserted into a gap (15) between the sleeve (12) and the inlet connection piece (2) and/or the outlet connection piece (4). 5. The turbine casing as claimed in claim 1, wherein the insulating device (5) comprises a ceramic inlay. 6. The turbine casing as claimed in claim 1, wherein the insulating device (5) comprises a coating which can be applied to the inner wall surface (22) of the turbine casing (1, 2). 7. The turbine casing as claimed in claim 1, further comprising a wastegate line (49) extending from the turbine casing (1) with a wastegate valve (50) arranged in the wastegate line (49), wherein both the wastegate line (49) and the wastegate valve (50) extend outside the turbine casing (1). 8. The turbine casing as claimed in claim 1, wherein only the wastegate line (49) extends outside the turbine casing (1). 9. The turbine casing as claimed in claim 1, wherein the insulating device (5) comprises a coolant arrangement (24), a coolant inlet (25) of which is arranged at least approximately at the lowest point of the spiral (3), and a coolant outlet (26) of which is arranged at least approximately at the highest point of the spiral (3). 10. The turbine casing as claimed in claim 1, wherein the insulating device (5) comprises an annular coolant duct (29) and/or a thermal heat-decoupling device (30). 11. The turbine casing as claimed in claim 1, wherein it is in the form of a cast aluminum casing and has a cooling device (11). 12. A turbine casing (1) of an exhaust-gas turbocharger (62) having an inlet connection piece (2) adjoined by a spiral (3), andhaving an outlet connection piece (4), characterized byan insulating device (5) for reducing the input of heat into the inlet connection piece (2), the spiral (3) and/or the outlet connection piece (4) wherein the inlet connection piece (2) has an inner wall (22), wherein the insulating device (5) comprises a flow baffle plate (16) which can be positioned in the inlet connection piece (2) against the inner wall (22), wherein the flow baffle plate (16) has a deflecting portion (17) extending away from the inner wall (22) to deflect exhaust gas away from the inner wall (22). 13. Aturbine casing (1) of an exhaust-gas turbocharger (62) having an inlet connection piece (2) adjoined by a spiral (3), andhaving an outlet connection piece (4), characterized byan insulating device (5) for reducing the input of heat into the inlet connection piece (2), the spiral (3) and/or the outlet connection piece (4), wherein the insulating device (5) comprises a steel tongue (21) which can be inserted into the entry region of the spiral (3). 14. A turbine casing (1) of an exhaust-gas turbocharger (62), having an inlet connection piece (2) adjoined by a spiral (3), andhaving an outlet connection piece (4), characterized byan insulating device (5) for reducing the input of heat into the inlet connection piece (2), the spiral (3) and/or the outlet connection piece (4), wherein the outlet connection piece (4) comprises a sleeve (12) extending from the spiral (3) and the sleeve (12) terminating in a fastening portion (14), and the turbine casing having an outer surface,wherein the insulating device (5) comprises cooling fins (31) on the outer surface of the turbine casing (1), the cooling fins (31) extending from the spiral (3) to the fastening portion (14), and the cooling fins (31) disposed around the sleeve (12).
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이 특허에 인용된 특허 (4)
Allmang,Ruediger; Claus,Hartmut; Simon,Volker, Casing assembly for the turbine of an exhaust turbochanger.
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