Importance

Loading Importance Indicators...

Abstract

An apparatus comprising: a flywheel mounted on a flywheel shaft; a bearing arrangement on which the flywheel shaft is supported; a gearing arrangement for torque coupling the flywheel to a drive member; a sealing arrangement; and a housing for containing the flywheel, bearing and gearing arrangements, the gearing arrangement being arranged to be in torque transmitting engagement with the flywheel, via the flywheel shaft, and having an engagement means for being in torque transmitting engagement with the drive member, the sealing arrangement comprising a pair of seals, defining a cavity, and forming a hermetic seal, between the engagement means and the housing, whereby, in use, a first pressure is maintained within the housing that is lower than a second pressure outside of the housing, and the seals retain a fluid within the cavity, and maintain the fluid at an intermediate pressure between the first and the second pressure.

Loading the Abstract Image...

First Claim