| 摘要 |
A closer mechanism and method of operation is provided for filter press assemblies and similar applications having a movable plate for opening and closing the assembly. A flexible bladder is arranged adjacent the movable plate and initially pressurized by a low pressure, high volume supply and then a high pressure, low volume supply regulated by sequencing controls. The flexible bladder is preferably enclosed by a rigid confinement assembly while being allowed to expand and contract for positioning the movable plate. The low pressure supply and high pressure supply are preferably of a gas-over-liquid type while including a reservoir and venting controls for conserving operating liquid within the closer mechanism. In one embodiment, the movable plate is rectangular and the rigid confinement assembly is similarly shaped to provide a particularly compact configuration with the bladder having an inflatable cross-section generally equal in area to the movable plate. |
