20140159314 | SLIDING PARTS - A sliding part assembly includes a plurality of circumferentially separated sealed-fluid-accommodating blocks formed on a sealing face of either the stationary ring or the rotating ring so as to communicate with a sealed-fluid-accommodating space. Pumping areas for generating a pumping action due to the stationary and rotating ring sliding in relative rotation are formed on the bottom of the plurality of sealed-fluid-accommodating blocks. The pumping areas formed on the bottom of the plurality of sealed-fluid-accommodating blocks are provided with intake pumping areas operating in a direction so as to draw in the sealed fluid and outflow pumping areas operating in a direction so as to expel the sealed fluid. A seal dam area on the sealing face on which said sealed-fluid-accommodating blocks are formed is formed from a high-lubricity sliding material, the seal dam area being on the opposite side of the sealing face relative to the sealed-fluid side. | 06-12-2014 |