Title:
FLUORINE LUBRICATING OIL FOR POSITIVE DISPLACEMENT VACUUM PUMP
Document Type and Number:
Japanese Patent JPH05118287
Kind Code:
A
Abstract:
PURPOSE: To provide a fluorine lubricating oil for a positive displacement vacuum pump, of comparatively low viscosity, little mechanical loss, and excellent oil film formation by mixing at least two kinds of fluorine lubricating oils having different viscosity.
CONSTITUTION: In a lubricating oil for a positive displacement vacuum pump for lubricating a part where mechanical parts slide in contact with each other, at least two kinds of fluorine lubricating oils each having a different viscosity are mixed with each other.
Inventors:
WATANABE YASUHIRO
OGAMINO HIROAKI
MURAKAMI SEIGO
USUI KATSUAKI
OGAMINO HIROAKI
MURAKAMI SEIGO
USUI KATSUAKI
Application Number:
JP25468391A
Publication Date:
May 14, 1993
Filing Date:
September 05, 1991
Export Citation:
Assignee:
EBARA CORP
International Classes:
F04C18/18; F04C23/00; F04C25/02; F04C29/02; (IPC1-7): F04C18/18; F04C23/00; F04C25/02; F04C29/02
Attorney, Agent or Firm:
Isamu Watanabe (1 person outside)