Eagle Industry Co., Ltd.

Minori Onuma

Yuta Negishi

Hiroki Inoue

Takeshi Hosoe

Yoshiaki Takigahira

Hikaru Katori

Nobuo Nakahara

Ryosuke Uchiyama

Hiroshi Suzuki

Tadatsugu Imura

Iwa Ou

An annular sliding component includes a sliding surface provided with a plurality of fluid introduction grooves communicating with a space on the side of a sealing target fluid and introducing the sealing target fluid thereinto and a plurality of inclined grooves extending from a leakage side toward the sealing target fluid and generating a dynamic pressure and the sliding surface of the sliding component is provided with a reverse inclined groove which is provided on the side of the sealing target fluid of the inclined groove, extends in a reverse direction with respect to the inclined groove, and generates a dynamic pressure.

Sliding component

An annular sliding component includes a sliding surface provided with a plurality of fluid introduction grooves communicating with a space on the side of a sealing target fluid and introducing the sealing target fluid and a plurality of inclined grooves extending from a leakage side toward the sealing target fluid and generating a dynamic pressure and the sliding surface of the sliding component is provided with at least a concave portion disposed between adjacent two of the fluid introduction grooves in the circumferential direction.

A sliding component having excellent lubricity and a high recovery rate of a sealed fluid is provided. In a mechanical seal as a sliding component in which a plurality of spiral grooves serving as a plurality of dynamic pressure generation grooves extending from a low pressure side to a high pressure side are formed on a sliding surface of a stationary seal ring serving as any one sliding member in the mechanical seal, the sliding surface is provided with an annular groove serving as a recessed portion extending in a circumferential direction and opened to the low pressure side and the annular groove communicates with the spiral groove.

Growing community of inventors

Tokyo, Japan

Minori Onuma