Two piece impeller hub for hybrid torque converter
AssigneeLuK Lamellen und Kupplungsbau Beteiligungs KG
InventorsGregory HEEKE, Eugen KOMBOWSKI
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Abstract
An impeller hub assembly including a first portion connected to a rotor for an electric motor, a second portion connected to an impeller shell of a torque converter, and a rotary shaft seal for hydraulically sealing at least one of the first and second portions of the impeller hub assembly to a housing for the torque converter. The assembly may further include a dynamic seal, a hydraulic chamber at least partially enclosed by the rotary shaft seal and the dynamic seal, and a hydraulic channel in fluid communication with the chamber. In some example embodiments of the invention, the hydraulic channel is for lowering pressure in the chamber by providing a discharge path for fluid in the chamber.
Claims16
An impeller hub assembly comprising:
- a first portion connected to a rotor for an electric motor;
- a second portion connected to an impeller shell of a torque converter;
- and
- a rotary shaft seal for hydraulically sealing at least one of the first and second portions of the impeller hub assembly to a housing for the torque converter.
A torque converter comprising:
- an impeller hub drivingly engaged with an electric motor;
- and
- a housing that can be rotationally connected and disconnected from the impeller hub.
A method of assembling a torque converter to a transmission comprising:
- installing a stator for an electric motor in the transmission;
- affixing a first impeller hub to a rotor for the electric motor;
- installing the rotor into the stator and radially positioning the hub in the transmission;
- affixing a second impeller hub to the torque converter;
- and,
- connecting the first and second impeller hubs so they are drivingly engaged.
Dependencies are inferred from the claim text.