Resources Contact Us Home
Lubrication of a centrifugal pump bearing

Image Number 4 for United States Patent #5051007.

Lubrication system for a centrifugal pump having a bearing mounted around a rotatable vertical shaft. The lubrication system includes a reservoir for holding a quantity of lubricant, structure for withdrawing lubricant from the reservoir, a stator, and a passageway for communicating lubricant from the reservoir to the bearing. The withdrawing structure includes a rotor connected to the vertical shaft. The stator encircles the rotor with the rotor and stator extending axially into the reservoir. The stator minimizes vortexing and churning of the lubricant in the reservoir during rotation of the rotor. Dynamic seals are not necessary with the lubrication system. Accordingly, concern of heat generation and wear associated with dynamic seals has been eliminated.

  Recently Added Patents
Method, apparatus or computer program for changing from scheduled to unscheduled communication modes
Lifting apparatus
Codeword-enhanced peer-to-peer authentication
Bid optimization in search engine marketing
Data management tool
Autobrake and decel control built-in test equipment
Polymers derived from benzobis(silolothiophene) and their use as organic semiconductors
  Randomly Featured Patents
DOT-AND logic gate device including multiemitter transistor
Peach tree named `Island Prince`
Interference tolerant modem
Over-ride mechanism for screw drive actuator
Hinged security override system
Automatic acoustic impedance meter
Method and apparatus for performing frequency detection
Optical fiber protection switch
Mobile communication device
Method and system for deleting or isolating computer viruses