Rotary drainage pump lubrication device and separator
AssigneeEngineering Corporation
InventorKozaburo Nitta
Life of this patent
Estimating the term…
Abstract
A device to separate muddy water from slurry which is being drained away and a means to use said muddy water to both seal and lubricate a gap between the guide channels and the vanes of the drainage pump, thereby securing the efficient long-term functioning of the pump. The invention presupposes the use of a vane type rotary drainage pump connected to a separation means which is set up to remove muddy water from the slurry discharged from the discharge port. A pressure chamber is incorporated into said rotor and connection with the inner ends of each of said guide channels. The muddy water separated out by the separation means is fed back into said pressure chamber.
Claims13
A lubrication device for the lubrication of a rotary drainage pump, said rotary drainage pump comprising a casing incorporating a rotor chamber that connects with an intake port and a discharge port, the rotor inside said rotor chamber having the capacity to rotate eccentrically with respect to the center of said rotor chamber and also having guide channels extending along the radius of rotation, and vanes fitted such that they are able to travel radially into said guide channels while at the same time dividing the space between said casing and said rotor into a plurality of operation chambers,
- a separation means being set tip to separate muddy water from slurry discharged from said discharge port,
- a pressure chamber being incorporated into said rotor and connected to inner ends of each of said guide channels, and
- pipes being connected to enable the muddy water separated out by said separation means to be fed into said pressure chamber.
Dependencies are inferred from the claim text.