Abstract: Separation method and apparatus in which fluids to be separated into component portions are dynamically separated by a multilayed laminar disc primary impeller that spins at high velocity within a closely fitting cylindrically concentric housing. Separated liquids and/or particulates received from the impeller are allowed to fall into a cavity or conical housing directly beneath the impeller where remixing is prevented while causing the separated fluid component portions to exit separately. The impeller is secured to a tubular shaft acting as a vortex finder. Above the primary impeller is a secondary impeller commonly driven by the same shaft to siphon relatively lighter fluid component portions through the center of the vortex finder and increase output. In the case of solids separation, an underflow trap at the underside exit of the conical housing may be equipped with a flow powered auger that extrudes the settled solids through a spring loaded gate.

Abstract: In a valveless pump, a pump body, having a central chamber, is provided with a radially disposed array of pistons movable toward and away from the axis of the pump body. Cylinder heads cooperate with the pistons in controlling fluid movement through the pump. A drive shaft extends axially into the pump chamber and includes a surrounding eccentric cam. A linkage assembly pivotally connects the inward end portions of the several pistons with a tether ring surrounding the drive shaft for maintaining the pistons in contact with the eccentric cam and reciprocating the pistons in sequence for moving fluid through conduits sequentially communicating with the several piston cylinders.