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US 7,008,191 B2Granted
Compressor wheel assembly
AssigneeHolset Engineering Company Limited
InventorAnthony Billington
Life of this patent
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Abstract
A compressor wheel assembly comprises a compressor wheel (7) mounted to a rotating shaft (8), which extends through a bore provided along the rotational axis of the wheel (7). The wheel (7) is keyed to the shaft (8) such that rotation of the shaft (8) drives rotation of the wheel through the keying engagement.
Claims10
A compressor wheel assembly comprising:
- a compressor wheel mounted to a rotating shaft, said shaft extends through a bore provided along the rotational axis of the wheel, said shaft and wheel including keying formations;
- a nut which threads on one end of the shaft and bears directly or indirectly against a nose portion of the wheel to clamp the wheel against an abutment and prevent axial movement of the wheel alone the shaft;
- a drive washer having an inner aperture to receive said shaft and which is disposed around said shaft between the nut and the wheel, the drive washer having inner and outer keying formations which engage the shaft and wheel keying formations respectively;
- and
- wherein the wheel keying formations comprise recesses extending radially into the wheel and the outer keying formations of the drive washer comprise radial projections which engage in said recesses, and said wheel is keyed to the shaft such that the rotation of the shaft drives rotation of the wheel through the keying engagement.
2 more elements
A compressor wheel assembly, comprising:
- a compressor wheel mounted to a rotating shaft, the shaft extending through a bore provided along the rotational axis of the wheel;
- a wheel keying formation provided on the wheel;
- a shaft keying formation provided on the shaft;
- a drive washer disposed around the shaft, the drive washer including an aperture to receive the shaft and inner and outer keying formations which engage the shaft keying and wheel keying formations respectively;
- a nut which threads on one end of the shaft and holds the drive washer in place and prevents axial movement of the wheel along the shaft;
- and
- the wheel keying formation comprises recesses extending radially in the wheel and the outer keying formations of the drive washer comprise radial projections which engage said recesses.
4 more elements
Dependencies are inferred from the claim text.