SLIDING PARTS

摘要

A plurality of circumferentially separated sealed-fluid-accommodating blocks are formed on either of the sealing faces of a stationary ring or rotating ring so as to communicate with a sealed fluid-containing space; pumping areas for generating a pumping action due to the sliding of the stationary ring and the rotating ring 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; and a plurality of dimples are disposed on a seal dam area on a side of the sealing face on which the sealed-fluid-accommodating blocks are formed, the seal dam area being on the opposite side of the sealing face relative to the sealed-fluid side.

主权项

1. A sliding part assembly in which an annular stationary ring fixed on a fixed side and an annular rotating ring that rotates along with a rotating shaft oppose each other and sealing faces are caused to rotate relative to one another, whereby a sealed fluid present on one side in the radial direction of the relatively rotating sealing faces is sealed;
the sliding parts characterized in that: a plurality of circumferentially separated sealed-fluid-accommodating blocks are formed on either of the sealing faces of said stationary ring or rotating ring so as to communicate with a sealed fluid-containing space; pumping areas for generating a pumping action due to the sliding of the stationary ring and the rotating ring in relative rotation are formed on the bottom of said plurality of sealed-fluid-accommodating blocks; the pumping areas formed on the bottom of said 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; and a plurality of dimples are disposed on a seal dam area on a side of the sealing face on which said sealed-fluid-accommodating blocks are formed, the seal dam area being on the opposite side of the sealing face relative to the sealed-fluid side.