| 摘要 |
A pneumatic/hydraulic pressure intensifier has a cap secured to open end of housing. A first chamber in open end receives air pressure. A first fluid communication system formed in cap communicates air pressure to first chamber. A wall member is disposed in such housing. A second chamber in communication with first chamber contains hydraulic fluid and unpressurized air. A second cap is secured to other end of housing. A third chamber in intensifier contains hydraulic fluid. A second fluid communication system formed in second cap connects the third chamber to a fluid communication line. An aperture formed in wall of second chamber evacuates air from portion of first and second chambers upon communication of air to a second portion of first chamber and communication of air to the first and second chambers upon evacuation of air pressure. A second aperture, formed in another housing wall, communicates hydraulic fluid to second chamber. A first piston is disposed for reciprocal movement in the first chamber. First piston is sealed against wall of first chamber to retain pressure in first chamber. A second piston moves in reciprocal manner in such third chamber. Second piston is sealed against wall of third chamber to communicate hydraulic fluid to a communication line. A rod is connected at first and second ends thereof to the first and second pistons to move them down on communication of air to first chamber. A spring moves pistons toward first cap when air is evacuated. |
