초록 ▼

A turbocharger rotor includes a turbine wheel, a compressor wheel, a shaft extending between the turbine and compressor wheels for rotation together about an axis, and connecting means including two pairs of non-locking cones. In a preferred embodiment, the cones include external cones on the turbin

A turbocharger rotor includes a turbine wheel, a compressor wheel, a shaft extending between the turbine and compressor wheels for rotation together about an axis, and connecting means including two pairs of non-locking cones. In a preferred embodiment, the cones include external cones on the turbine and compressor wheels and internal cones on the ends of the shaft. The non-locking cones are centered on the axis with the external and internal cones drivingly engaging one another to align and connect the wheels with the shaft. A long bolt fastener extends through the compressor wheel and the shaft to engage the turbine wheel and hold the rotor components in assembly. An alternative embodiment includes engaging radial surfaces outward of the cones. The radial surfaces share the transmission of torque through the connecting means and assist in stabilizing the joints between the shaft and the connected wheels. Additional features are disclosed.

대표청구항 ▼

1. A rotor for an engine turbocharger including a turbine wheel, a compressor wheel, a shaft extending between the turbine and compressor wheels for rotation together about an axis, and connecting means comprising:at least one pair of non-locking cones including an external cone and an internal cone

1. A rotor for an engine turbocharger including a turbine wheel, a compressor wheel, a shaft extending between the turbine and compressor wheels for rotation together about an axis, and connecting means comprising:at least one pair of non-locking cones including an external cone and an internal cone both centered on the axis and drivingly engaging one another and each connected with one of said one of the wheels and the shaft; and fastener means holding the shaft and said one of the wheels together with the external cone received in the internal cone.