Linear movement device with lubrication system, enables/cancels sealing engagement between housing and rotor sealing surfaces by movement of rotor in longitudinal direction

摘要

The device (10) has rotor that is provided in housing along longitudinal direction. A lubrication port (40) includes a housing lubrication channel (41) provided on housing and a housing sealing surface (42) extended to lubrication channel. A rotor lubrication channel (52) is formed at rotor from rotor sealing surface (50) to lubrication point (53). The sealing engagement between housing and rotor sealing surfaces is enabled or canceled by movement of rotor in longitudinal direction.