Abstract: This invention is for a pump having a series of chambers in a stack wherein electrodeformable material is used to deform a diaphragm to change the volume in the chambers. The architecture of the pump features stacks of chambers having a common diaphragm between adjacent chambers such that when a diaphragm is deformed to increase the volume in one chamber it simultaneously decreases the volume in the adjoining chamber. In one embodiment the stacks of chambers can be combined with other stacks to increase the head pressure in stages. In a second embodiment the stages can be in the same stack.

Abstract: Adjustable gap hydrostatic bearings and adjustable gap seals wherein the adjustable gaps are useful to compensate for wear, thermal expansion, journal speed, and radial deflection of the journal. A housing 10 is adjacent to a journal 2. The housing contains an annular electrodeformable material 5 which will expand or contract radially with the application of voltage and thus adjust the gap between the liner material 3 and the journal.