Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Bearing assembly for an ultra quiet electric motor










Image Number 10 for United States Patent #5917258.

A high speed electric motor for automotive applications that is designed to effectively minimize vibration of its component parts and thus suppress noise generated during its operation. The motor incorporates acoustic engineering principles including surface vibration control, acoustic radiation efficiency, active intensity field control and noise control using acoustic materials to reduce overall vibration of the motor components and the motor noise sensed by the passenger of the vehicle. In one aspect, a bearing assembly for an electric motor is disclosed. The electric motor is of the type including a housing defining an internal chamber, an armature disposed within the internal chamber and having a rotatable shaft, and magnet means for inducing rotational movement of the armature shaft. The bearing assembly includes a bearing member for supporting the armature shaft for rotational movement and a bearing housing defining an internal bore that accommodates at least a portion of the bearing member. The bearing housing may comprise a vibration energy absorbing material, and is dimensioned such that an inner wall portion of the bearing housing defining the internal bore is in contacting engagement with an outer surface of the bearing member to facilitate absorption of vibration energy from the bearing member.








 
 
  Recently Added Patents
Device for optically scanning and measuring an environment
Impact-modified polycarbonate compositions for the production of metallised mouldings with homogeneous surface gloss
Complement antagonists and uses thereof
Systems and methods for managing use of an imaging device
Electrostatic image forming apparatus utilizing index patterns for toner image alignment
Compliant conductive nano-particle electrical interconnect
Method of recovery from sleep state of an ONU in a PON system capable of power saving
  Randomly Featured Patents
Autolearning network link protection device
Artificial potted tree
Chrysanthemum plant named `PPP BALD 09`
Method and apparatus for displaying a record from a structured database with minimum keystrokes
Measurement of moisture content
Simultaneous amplitude and force profiling during ultrasonic welding of thermoplastic workpieces
Modular chemical delivery blocks
Compound paper making fabric
Systems and methods for tracking the eye
Cam follower with roller