US 2014/0369840 A1 · CONNECTOR

Connector

AssigneeNapier Turbochargers Limited

InventorsIan Pinkney, Osarobo Famous Okhuahesogie, Paul Eifion Roach, Neil Ryan Thomas, Ian Patrick Clare Brown, Peter Kay, Stephen Wilson, David Leslie Smith, Robert Neil George, Paul Leslie Jacklin, Geoff Kinpoy Ngao, Kevin John Musson, Matthew Elijah Moore, Jamie Clare, Thomas Jarlath Murray, Stuart Michael Potter, Christopher John Monaghan, Alan Martin Taylor, Francis Joseph Geoffrey Heyes, Trevor Knighton

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Abstract

A connector for connecting an impeller to a shaft is provided. The connector is formed as a unitary body. The connector has a sleeve portion which is frictionally connected on a radially outer surface of a shaft-side hub extension of the impeller. The connector further has a threaded portion carrying a thread which screws onto a corresponding threaded portion of the shaft, such that the connector provides a rotationally fixed connection between the impeller and the shaft. The hub extension has a central recess, and a part of the connector is inserted into the recess. The frictional connection between the sleeve portion and the radially outer surface of the hub extension transmits, in use, substantially all of the torque between the shaft and the impeller.

Claims14

Dependent claims

A connector for connecting an impeller to a shaft, wherein the connector is formed as a unitary body having:

a sleeve portion which is frictionally connected on a radially outer surface of a shaft-side hub extension of the impeller, and
a threaded portion carrying a thread which screws onto a corresponding threaded portion of the shaft, such that the connector provides a rotationally fixed connection between the impeller and the shaft;
and
wherein:
the hub extension has a central recess, and a part of the connector is inserted into the recess;
and
the frictional connection between the sleeve portion and the radially outer surface of the hub extension transmits, in use, substantially all of the torque between the shaft and the impeller.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/364,874Filed 12 Dec 2012

Priority

GB 1122236.123 Dec 2011

Published

18 Dec 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

F01D 5/025
Blade-carrying members, e.g. rotors: fixing blade carrying members on shafts
F01D 5/026
Blade-carrying members, e.g. rotors: shaft to shaft connections
F04D 29/266
Rotors specially for elastic fluids: mounting compressor rotors on shafts
F16D 1/076
For attachment of a member on a shaft or on a shaft-end: by clamping together two faces perpendicular to the axis of rotation, e.g. with bolted…