Exhaust gas turbocharger shaft having an impeller

A turbocharger shaft and exhaust turbine technology, applied to machines/engines, components of pumping devices for elastic fluids, non-variable pumps, etc., can solve the problem of limiting the diameter of the compressor wheel and limiting the maximum compressor air throughput etc.

Active Publication Date: 2015-06-10
CONTINENTAL AUTOMOTIVE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a non-form fit limits the upper limit of the torque that can be transmitted from the exhaust gas turbocharger shaft to the compressor wheel and thus also th

Method used

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  • Exhaust gas turbocharger shaft having an impeller
  • Exhaust gas turbocharger shaft having an impeller
  • Exhaust gas turbocharger shaft having an impeller

Examples

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Embodiment Construction

[0016] The invention relates to an exhaust-gas turbocharger shaft having an impeller connected thereto in a form-fitting manner and connected to a shaft nut provided on its outer housing, wherein the shaft nut is inserted into the central hole of the impeller such that the impeller is in contact with the The axle nut forms a form-fit connection in the radial direction and in the circumferential direction.

[0017] The following description is based on an impeller as a compressor wheel of an exhaust-gas turbocharger. However, the invention can also be used in the case of an impeller which is a turbine wheel of an exhaust-gas turbocharger.

[0018] In the present invention, the shaft nut is attached to the outer housing of the exhaust-gas turbocharger shaft. This is achieved, for example, by means of a shaft nut threaded onto its inner housing, the shaft nut being a hex nut, the exhaust-gas turbocharger shaft having an external thread on its outer housing, the hex nut being scr...

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Abstract

The invention relates to an exhaust gas turbocharger shaft (1), which has an impeller (2) connected to the exhaust gas turbocharger shaft in a form-closed manner and which is connected to a shaft nut (3) provided on the outer curved surface of the exhaust gas turbocharger shaft. The shaft nut (3) is inserted into a center bore of the impeller (2) in such a way that the impeller (2) forms a form-closed connection with the shaft nut (3) in the radial direction (R) and the circumferential direction (U).

Description

technical field [0001] The invention relates to an exhaust-gas turbocharger shaft having an impeller connected thereto. Background technique [0002] The impeller of the exhaust-gas turbocharger must be connected to the exhaust-gas turbocharger shaft such that during operation of the exhaust-gas turbocharger it is ensured that torque is transmitted from the impeller to the exhaust-gas turbocharger shaft and / or from the exhaust The gas turbocharger shaft transmits to the impeller. [0003] For this purpose, it is already known that the compressor wheel of the exhaust-gas turbocharger is connected to the shaft of the exhaust-gas turbocharger by non-form fit. For this purpose, the compressor wheel has a central bore, which is arranged to contact the exhaust-gas turbocharger shaft by a suitable fit, wherein an axle nut is also provided, which is screwed onto the exhaust-gas turbocharger shaft and Undesired axial displacement of the compressor wheel on the exhaust gas turbochar...

Claims

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Application Information

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IPC IPC(8): F04D29/26
CPCF04D29/266F04D17/00F04D29/403F05D2220/40
Inventor R.贝宁P.梅内
Owner CONTINENTAL AUTOMOTIVE GMBH
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