文档介绍：PATENTS
Porous ceramic mechanical seal ring Seal and control valve
Applicant: Kyocera Corporation, Japan Applicant: Eagle Industry Co Ltd, Japan
A porous ceramic that can be sectional area of the pores relative A seal for the stem of a direct act- pressure. A number of seal cross-
used for mechanical seal faces is to a circular pore is defined, as is ing solenoid valve is shown. The sections, such as oval and D-rings,
described. The pores are not less the pore size distribution. seal appears to be fitted to the are illustrated.
than 5 µm, and pressed into Patent number: WO 2006/117897 solenoid stem, but retain a clear- Patent number: WO 2006/118051
an elliptical shape with the minor Inventors: T. Hara ance in the outside diameter hous- Inventors: R. Cho, Y. Ogawa
diameter parallel to the direction and S. Masuyama ing of the valve body. It retains a and K. Fukudome
of sliding. The value of the cross- Publication date: 9 November 2006 clearance even when distorted by Publication date: 9 November 2006
Mechanical seal device
Applicant: Eagle Industry Co Ltd, Japan
A mechanical seal that includes Patent number: WO 2006/118069
lubrication features on the rotary Inventor: H. Takahashi
ring is described. Liquid introduc- Publication date:
ing features are machined on the 9 November 2006
inside diameter of the seal ring (5B) The solenoid
and an annular blocking groo