Abstract: Apparatus for handling fluid is provided. The apparatus can serve to pump fluid and increase its pressure when power is applied to a shaft, or the apparatus can drive the shaft when fluid under pressure is supplied. The apparatus includes a housing having a plurality of chambers formed therein in a circular pattern. Each of the chambers includes two generally triangularly-shaped cavities communicating at apexes and positioned symmetrically with respect to a center line extending through the apexes. The chamber also is of a generally bow-tie shaped configuration. Each of the chambers has a piston therein which is oscillated about an axis at the center line of the chambers. The piston is generally of the same shape as the chamber but narrower. Each cavity has intake lines and outlet lines through which fluid flows as the piston oscillates therein. The pistons have arms extending outside the chambers and driven to oscillate the pistons.

Abstract: Apparatus is provided for transferring heat to fluids by the use of magnets. A first plurality of magnets is mounted in a housing in a pattern having a circular cross section. A second plurality of magnets is mounted in spaced relationship with respect to the first plurality and means are provided for moving one of the plurality of magnets relative to the other. Two concentric conductive members or sleeves of generally cylindrical shape are located in the magnetic field between the two pluralities. The two sleeves form an annular passage extending longitudinally of the magnets through which fluid to be heated is passed. The magnetic field causes the conductive sleeves to be heated by induction and transfer the heat to the fluid in an efficient manner. The inner sleeve preferably has projections extending toward the outer sleeve with longitudinally-extending passages therethrough.