| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealing apparatus between a rotor and a housing of a fluid machine, which can easily be fitted and removed and which does not require any additional components. SOLUTION: Piston ring sealing regions (Dg, Dk) each have a piston ring (5, 6), a cylindrical contact surface (35, 36) directed radially inward and provided on a housing (31), and an axial stopper (41, 42) provided on a rotor (R). The piston ring (5) of the outer piston ring sealing region (Dg) has a larger external radius and a smaller internal radius than the piston ring (6) of the inner piston ring sealing region. At the same time, the outer piston ring sealing region (Dg) has a smaller internal radius than the inner piston ring sealing region (Dk). Because of the V-shaped apparatus concept, there is no need for a steel ring shrunk onto the rotor, between a plurality of piston ring sealing regions. COPYRIGHT: (C)2010,JPO&INPIT
|
