Patent ID: 9151390
Filing Date: 2015-10-06
Classification: F16J

Abstract:
1. Sliding parts for allowing opposing sealing faces of an annular stationary ring fixed on a fixed side and an annular rotating ring that rotates along with a rotating shaft to rotate relative to one another, thereby sealing a sealed fluid present on one side in the radial direction of said relatively rotational sealing faces; the sliding parts being characterized in: a plurality of pumping areas for generating pumping action via the relative rotational sliding of said stationary ring and rotating ring being discontinuously formed in a circumferential direction in the sealing face of one of the stationary ring and rotating ring so as to communicate with a sealed fluid-containing space; said plurality of pumping areas being provided with intake pumping areas operating in a direction in which the sealed fluid is drawn in and outflow pumping areas operating in a direction in which the sealed fluid is expelled, said intake pumping areas and outflow pumping areas being both provided in the sealing face of said one of the stationary ring and rotating ring; and a plurality of dynamic pressure-generating grooves for generating dynamic pressure via the relative rotational sliding of said stationary ring and the rotating ring being formed in a circumferential direction in the sealing face of the other of the stationary ring and the rotating ring so as to communicate with the sealed fluid-containing space.