Vibration-insulating bearing arrangement for a drive unit
US4440257A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 28, 1982 |
| Grant date | Apr 3, 1984 |
| Priority date | — |
| Expiry date | Jan 28, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K5/1216
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A bearing arrangement for mounting a drive unit on a supporting framework of a vehicle is designed so that vibrations from the drive unit are isolated from the vehicle. The arrangement includes at least one torque bracing device for counteracting the reaction moment created by the output shaft of the drive unit by transmitting these torques to the framework. Supporting bearings intercept inertial forces of the drive unit, but in order to accomplish the vibration insulation the torque bracing device is made flexible with respect to inertial forces so as to prevent their transmission to the framework by said torque bracing device. Thus, these static or quasi-static inertial forces do not overload a spring element with a progressive characteristic that is provided in the arrangement. Inertial forces can be converted into torques by proper location of the support bearings away from the centroidal axis of the drive unit. Further, by mounting elongated elements of the torque bracing devices at points that are free of transverse vibrations, the torque bracing can be rendered free of inertial vibrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.