Seal retainer device and power transmission unit with seal retainer device

摘要

A seal retainer device for fixing the position of at least one sealing device, comprising at least one contact surface for fixing the position of a seal in the radial and/or axial direction, a first functional surface for linking to a component, and at least one second functional surface to form an axial or radial bearing sliding surface. In addition, the invention relates to a power transmission unit having a seal retainer that holds seals for sealing off two pressure chambers.

主权项

1. A power transmission unit (31) for connecting between a drive engine and a transmission input shaft (32), including:
a turbine; a piston for a torque converter and the input shaft for a transmission forming at least respective portions of two pressure chambers (2, 3); a hub (38) at least partially rotatable with respect to the turbine and arranged to engage the input shaft such that the hub and the input shaft rotate in unison; a first sealing device in contact with the hub (38) and the piston; and, a second sealing device in contact with the hub (38) and the input shaft, wherein:
the first and second sealing devices are fixed with respect to the hub (38) in an axial direction by means of a seal retainer device (1); andthe seal retainer device (1) is situated on the hub (38) such that the seal retainer device surrounds an end of the hub in axial and radial directions.