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    • 10. 发明专利
    • GEAR PUMP OR MOTOR
    • JPH0949491A
    • 1997-02-18
    • JP20087295
    • 1995-08-07
    • SHIMADZU CORP
    • MUKAI NOBUO
    • F04C2/18F04C2/00F04C2/08F04C2/24
    • PROBLEM TO BE SOLVED: To prevent the gasket from its separation and position displacement in the case of assembling a bearing case in a body and to improve work efficiency by providing an engaging part, for fixing a gasket to a backup member, between the gasket and a gasket groove. SOLUTION: A gasket is mounted in a gasket groove 8, and an engaging part A1 is constituted by tightly holding a perpendicular wall part 91a or the like of the gasket between a protrusion 81 and a seal groove internal wall 81a or the like. In this way, in the case of inserting a bearing case 6 with the gasket facing downward into a spectacle hole of a body, the gasket can be prevented from separating from the bearing case 6 and causing position displacement. Consequently, the bearing case 6 can be surely assembled, so that workability and work efficiency related to the assembling case by improved. Even after completion of assembly, a condition, holding the gasket engaged with the gasket groove 8 through the engaging part Al or the like, is maintained and the gasket is prevented from moving by a pressure when a pump is operated.