Resources Contact Us Home
Methods of installing a balance weight for a rotary component in turbomachinery

Image Number 6 for United States Patent #6477916.

A balance weight has first and second margins at right angles to one another with the second margin larger than the first margin. A balance weight groove in a rotor has outer and inner wall portions, with the outer wall portions spaced a distance less than the spacing between the inner wall portions. The balance weight has a central threaded opening receiving a screw and a driving slot in the upper face of the weight. An insertion tool is threaded to the balance weight to insert the balance weight through a turbomachinery access opening into the groove. The tool is rotated to locate the second margins below the outer wall portions of the groove. By inserting a driving tool through the insertion tool, the screw is rotated to lock the balance weight to the rotor and in the groove. Upon removal of the insertion and driving tools, a staking tool is inserted through turbine access opening to stake the balance weight and rotor and the screw and balance weight.

  Recently Added Patents
Hand-held optical probe based imaging system with 3D tracking facilities
Chemical method of making a suspension, emulsion or dispersion of pyrithione particles
Sublingual coated tablet of fentanyl
Self-diagnostic method and system for implantable cardiac device
Utility knife
Method for parking or exiting a parking bay and for avoiding a collision of a vehicle, and corresponding assistance systems and vehicle
Socket type MEMS device with stand-off portion
  Randomly Featured Patents
High-efficiency device for focusing light to subwavelength dimensions
Wind-driven vessel
Method for controlling a grinding wheel-workpiece interface force for a workpiece with diverse grindability characteristics
Combined pocket implements and sheath
Motion generating squirrel feeder
Hardware for mounting a casket handle bar
Non-heating type fluid sterilizing apparatus
Spray head
Method and apparatus for providing power to a coaxial cable network
Impact contact device for projectiles