IP Library Granted Patent US 10,280,977
Granted Patent B2
US 10,280,977 · App. 15/566,169 · Granted May 7, 2019

Slide Component

Inventors: Masatoshi Itadani (Tokyo, JP); Kazumasa Sunagawa (Tokyo, JP); Tetsuzo Okada (Tokyo, JP); Keiichi Chiba (Tokyo, JP); Kenji Kiryu (Tokyo, JP); Akiko Koga (Fujisawa, JP)
Assignees: EAGLE INDUSTRY CO., LTD; NOK CORPORATION
F16C33/043C23C16/26C23C16/27F16C17/04F16C33/24F16C33/74F16J15/34F16C2206/04
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Quick Facts
Patent No.
US 10,280,977
App. No.
15/566,169
Granted
May 7, 2019
Kind
B2
Abstract

In an embodiment, a slide component includes a circular ring-shaped stationary-side seal ring 5 fixed to a stationary side and a circular ring-shaped rotating-side seal ring 3 rotating with a rotating shaft 1 , and relatively rotates respective opposed sliding faces S of the stationary-side seal ring 5 and the rotating-side seal ring 3 , thereby sealing a sealed fluid present on one side in a radial direction of the sliding face relatively rotating and sliding, wherein the sealed fluid is a silicate containing fluid; and on at least either one sliding face of the stationary-side seal ring 5 and the rotating-side seal ring 3 , an amorphous carbon film 10 formed by using hydrocarbon gas not containing organosilicon compound gas in a plasma CVD method is laminated. The slide component can seal a silicate containing sealed fluid to which silicate is added.

Claims (5)

1. A slide component which includes a circular ring-shaped stationary-side seal ring fixed to a stationary side and a circular ring-shaped rotating-side seal ring rotating with a rotating shaft, and relatively rotates respective opposed sliding faces of the stationary-side seal ring and the rotating-side seal ring, for sealing a sealed fluid containing silicate present on one side in a radial direction of the sliding faces relatively rotating and sliding, wherein:

at least either one of the sliding faces of the stationary-side seal ring and the rotating-side seal ring is coated with an amorphous carbon film containing 0.34 at % or less of silicon in a manner preventing deposition of a silicate component contained in the sealed fluid on the sliding faces.

2. The slide component according to claim 1 , wherein a base material of the stationary-side seal ring or the rotating-side seal ring is silicon carbide.

3. The slide component according to claim 1 , wherein the amorphous carbon film is a film formed from hydrocarbon gas containing no organosilicon compound gas by plasma CVD.

4. The slide component according to claim 2 , wherein the amorphous carbon film is a film formed from hydrocarbon gas containing no organosilicon compound gas by plasma CVD.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 12, 2017
From: ITADANI, MASATOSHI; SUNAGAWA, KAZUMASA; OKADA, TETSUZO; CHIBA, KEIICHI; KIRYU, KENJI; KOGA, AKIKO
To: EAGLE INDUSTRY CO., LTD.; NOK CORPORATION
Reel/Frame 043854/0690 →
Priority Claims (1)
JP 2015-083809 · Apr 16, 2015 · national
Continuity (1)
Related Publication 20180112711A1 · Apr 26, 2018
Cited By (2)
US 12,291,970 US 12,631,215