09-09-2015 дата публикации
Номер: CN0204627520U
Принадлежит:
The application discloses a packer includes: the center tube, a thru hole is provided on the wall of center tube, the packing element unit, the cone unit, the hydraulic cylinder cover, the center tube with be equipped with first piston, first mounting, second piston, second mounting between the hydraulic cylinder cover sequentially, first piston is located cone unit below, first piston with be equipped with a locking mechanism between the cone unit, first mounting with center tube fixed seal connects, first mounting with preset the thermal energy thing between the first piston, the second piston with hydraulic cylinder cover fixed connection, the second mounting with the center tube passes through deblocking pin joint, the second mounting with be equipped with the space of admitting air between the second piston, admit air the space with the thru hole feeds through mutually, the second mounting with be equipped with the 2nd locking mechanism between the hydraulic cylinder cover. The packer ...
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