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    • 10. 发明专利
    • Lubrication apparatus using microbubbles
    • JP4930480B2
    • 2012-05-16
    • JP2008241211
    • 2008-09-19
    • トヨタ自動車株式会社
    • 大輔 友松真史 山本大輔 床桜新 村上修司 森山
    • F16H57/04F16N7/32
    • PROBLEM TO BE SOLVED: To provide a lubricating device using a micro bubble capable of changing viscosity of lubricating oil according to presence/absence of drag of a brake. SOLUTION: The lubricating device using the micro bubble includes a lubricating oil supply device for supplying the lubricating oil and a micro bubble generating device for generating a micro bubble by mixing air into the lubricating oil. A brake provided for a transmission is equipped with a rotation frequency difference determining means (step S8) for determining whether rotation frequency difference between the brake and a rotation element exceeds predetermined rotation frequency difference or not, a first supply means (step S6) for supplying the lubricating oil to the brake without mixing the air into the lubricating oil when the rotation frequency difference exceeds the predetermined rotation frequency difference, and a second supply means (step S9) for supplying the lubricating oil in which the micro bubble is generated by the micro bubble generating device to the brake when the rotation frequency difference does not exceed the predetermined rotation frequency difference. COPYRIGHT: (C)2010,JPO&INPIT