公开(公告)号：US20220010835A1

公开(公告)日：2022-01-13

申请号：US17296466

申请日：2019-11-22

申请人： Eagle Industry Co., Ltd.

发明人： Hiroki INOUE ,  Yuta NEGISHI ,  Yuki MAETANI ,  Sayaka MIYAZAKI

IPC分类号： F16C17/02 ,  F16C33/74 ,  F16J15/34

摘要： A sliding component includes a dynamic pressure generation groove configured for generating dynamic pressure on a sliding surface, which groove includes an introduction port formed in one end side of the groove in a circumferential direction and which is open to a sealing target fluid H side, a throttle portion communicating with the introduction port and having a narrowed flow path, and a lead-out port formed on the other end side of the groove, which communicates with the throttle portion and which is open to the sealing target fluid side.

公开(公告)号：US20240353007A1

公开(公告)日：2024-10-24

申请号：US18685139

申请日：2022-07-27

申请人： EAGLE INDUSTRY CO., LTD.

发明人： Gai YAMAGUCHI ,  Ryosuke UCHIYAMA ,  Takahiro TSUKAMOTO ,  Yuki MAETANI ,  Sayaka MIYAZAKI ,  Hiroki INOUE ,  Minori ONUMA ,  So MAKISHIMA ,  Yuta NEGISHI

IPC分类号： F16J15/34

CPC分类号： F16J15/34

摘要： A sliding surface of a first sliding component and a sliding surface of a second sliding component slide against each other in an intersecting manner such that first positive pressure generation grooves and second positive pressure generation grooves at least partially overlap each other. The first positive pressure generation grooves include at least one groove that differs in a position of a terminating end portion from other grooves. The one groove includes a terminating end portion located closer to a sealed fluid space side than a terminating end portions of the other grooves and terminating end portions of the second positive pressure generation grooves.

公开(公告)号：US20220145992A1

公开(公告)日：2022-05-12

申请号：US17433561

申请日：2020-03-18

申请人： Eagle Industry Co., Ltd.

发明人： Sayaka MIYAZAKI ,  Hiroki INOUE ,  Yuta NEGISHI ,  Yuki MAETANI

IPC分类号： F16J15/34

摘要： A sliding component includes a plurality of dynamic pressure generation mechanisms circumferentially arranged on a sliding surface of the sliding component. Each dynamic pressure generation mechanism includes an introduction groove portion communicating with a sealing target fluid side through an opening portion of the introduction groove portion and a dynamic pressure generation groove portion communicating with the introduction groove portion and extending in a circumferential direction in which the sliding component is relatively rotated with respect to a mating sliding component. The introduction groove portion is partially defined by a boundary wall positioned between the introduction groove portion and the dynamic pressure generation groove portion. The boundary wall has an inclined surface where at least a portion of the boundary wall positioned on a side of the opening portion extends toward the sealing target fluid side and inclined to a side of the dynamic pressure generation groove portion.