Diffuser for a turbocharger having an adjustable turbine geometry and turbocharger for an internal combustion engine
OwnerPeter Fledersbacher, Torsten Hirthinventors
Life of this patent
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Abstract
In a diffuser for a turbocharger having an adjustable turbine geometry wherein the diffuser comprises an axial slide and an adjusting device for moving the axial slide and wherein the adjusting device comprises an adjusting fork having an opening with a guide axis for the accommodation of a guide element and the adjusting device further comprises an adjusting lever with a lever end, the lever end is accommodated in a recess of the adjusting fork which is disposed at a side of the adjusting fork facing the axial slide in order to minimize tilting forces and provide for smooth sliding movement of the fork.
Claims8
A diffuser for a turbocharger having an adjustable turbine geometry, the diffuser (10) comprising an axial slide (12) and an adjusting device (16) for positioning the axial slide (12), the adjusting device (16) comprising an adjusting fork (17) having an opening (23) with a guide axis (24) accommodating a guide element (19) and further comprising an adjusting lever (20) with a lever end (28), the adjusting fork (17) having at least one contact surface (35, 36), in body contact with the axial slide (12),
- the adjusting fork (17) having an engagement recess (25) for the accommodation of the lever end (28), the engagement recess (25) with its contact surfaces (35, 36) being positioned between the guide axis (24) and a longitudinal axis (14) of the axial slide (12).
A turbocharger for an internal combustion engine, comprising a housing (2) with an exhaust gas duct section (3) through which exhaust gas can flow to a turbine wheel space in the housing (2) and wherein a diffuser (10) for changing the admission of exhaust gas to the turbine wheel space is provided in the exhaust gas duct section (3), the diffuser (10) supporting an axial slide (12), and an adjusting device (16) for positioning the axial slide (12), the adjusting device (16) comprising an adjusting fork (17) having an opening (23) with a guide axis (24) for the accommodation of a guide element (19), the adjusting device (16) further comprising an adjusting lever (20) with a lever end (28), the adjusting fork (17) having at least one contact surface (35, 36), in body contact with the axial slide (12), the adjusting fork (17) further having an engagement recess (25) for the accommodation of the lever end (28), the engagement recess (25) with the lever end (28) being positioned between the guide axis (24) and a longitudinal axis (14) of the axial slide (12)
Dependencies are inferred from the claim text.