Asymmetric actuator pivot shaft bushing for vtg turbocharger
AssigneeBorgWarner Inc.
InventorDonald Michael KENNEDY
Life of this patent
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Abstract
A turbocharger (10) includes a housing (12, 14, 16) and an actuating mechanism (46) for actuating a device (40) within the housing (12, 14, 16). A pivot shaft (42) has an inside end (48) inside the housing (12, 14, 16) and an outside end (82) outside the housing (12, 14, 16). The pivot shaft (42) is rotatably mounted in a bore (64) in the housing (12, 14, 16) for transmitting an actuating movement from outside the housing (12, 14, 16) to the actuating mechanism (46). A bushing (62) is disposed in the bore (64). The bushing (62) includes an asymmetric portion (68) that extends inside the housing (12, 14, 16) to support the inside end (48) of the pivot shaft (42).
Claims15
A turbocharger (10) comprising:
- a turbocharger housing (12, 14, 16);
- an actuating mechanism (46) for actuating a device (40) within said turbocharger housing (12, 14, 16);
- a pivot shaft (42) having an inside end (48) inside said turbocharger housing (12, 14, 16) and an outside end (82) outside said turbocharger housing (12, 14, 16), wherein said pivot shaft (42) is rotatably mounted in a bore (64) in said turbocharger housing (12, 14, 16) for transmitting an actuating movement from outside said turbocharger housing (12, 14, 16) to said actuating mechanism (46);
- and
- a bushing (62) disposed in said bore (64), said bushing (62) including an asymmetric portion (68) extending inside said turbocharger housing (12, 14, 16) to support said inside end (48) of said pivot shaft (42).
A turbocharger (10) comprising:
- a turbocharger housing (12, 14, 16) having a bore (64);
- a plurality of guide vanes (26) disposed inside said turbocharger housing (12, 14, 16);
- a control ring (40) operatively coupled to said plurality of guide vanes (26);
- an actuator pivot shaft (42) having an inside end (48) with a pivot shaft fork (46) inside said turbocharger housing (12, 14, 16) and an outside end (82) outside said turbocharger housing (12, 14, 16), wherein said pivot shaft fork (46) is operatively coupled to said control ring (40) for actuating said control ring (40), and wherein said actuator pivot shaft (42) is rotatably mounted in said bore (64) for transmitting an actuating movement from outside said turbocharger housing (12, 14, 16) to said pivot shaft fork (46);
- and
- a bushing (62) disposed in said bore (64), said bushing (62) including an asymmetric portion (68) extending inside said turbocharger housing (12, 14, 16) to support said inside end (48) of said actuator pivot shaft (42).
A turbocharger (10) comprising:
- a bearing housing (16) having a bore (64), said bearing housing (16) defining a bearing housing cavity (44);
- a plurality of guide vanes (26) disposed inside said turbocharger (10);
- an actuator pivot shaft (42) having an inside end (48) with a pivot shaft fork (46) disposed inside said bearing housing cavity (44) and an outside end (82) disposed outside said bearing housing cavity (44), wherein said pivot shaft fork (46) is operatively coupled to said plurality of guide vanes (26) for actuating said plurality of guide vanes (26), and wherein said actuator pivot shaft (42) is rotatably mounted in said bore (64) for transmitting an actuating movement from outside said bearing housing (16) to said pivot shaft fork (46);
- and
- a bushing (62) disposed in said bore (64), said bushing (62) including an asymmetric portion (68) extending into said bearing housing cavity (44) to support said inside end (48) of said actuator pivot shaft (42).
Dependencies are inferred from the claim text.