TL;DR: In this paper, a positive displacement inductive pump which includes a pair of steel cylinders or sleeves having a nonmagnetic corrosion resistant inner surface and non-magnetic alloy rings disposed at each cylinder end is presented.
Abstract: A positive displacement inductive pump which includes a pair of steel cylinders or sleeves having a non-magnetic corrosion resistant inner surface and non-magnetic alloy rings disposed at each cylinder end. Three ferromagnetic pole pieces having an axial opening are provided with each cylinder disposed between a respective pair of the pole pieces and connected to the pole pieces with the alloy rings. A pair of oppositely disposed steel plates connected to the pole pieces forms a magnetically conductive circuit between the pole pieces. A piston positioned within the bore defining a displacement chamber adjacent to each end of the bore. The piston includes a rod formed of magnetic material with a corrosion resistant lining encapsulating the rod. The pistons outer lining surface forms a seal with the material on the inner surface of the cylinders. Respective inductive coils are wound around each cylinder and are alternatingly energized to produce magnetic fields which cause the piston to move to oppositely located ends of the bore. Respective check valve assemblies are attached to each outer pole piece at the ends of the bore. The check valve assemblies allow for the ingress and egress of material into and out of the associated adjacent displacement chamber dependent upon the directional movement of the piston.
TL;DR: In this paper, an inductive pump is used to transfer the energy to a capacitor to achieve the needed voltage, and the discrete inductor is bonded atop the die which also includes the control circuitry.
Abstract: Improved performance of flash memories requires programming more cells in parallel. This design uses an inductive pump to transfer the energy to a capacitor to achieve the needed voltage. The discrete inductor is bonded atop the die which also includes the control circuitry. With an inductive pump, the current saving in the program mode is 47.5 mA compared to a capacitive pump.
TL;DR: In this paper, a positive displacement inductive pump includes a housing having first and second ends, and a bore extending from the first end to the second end, where a piston is positioned entirely within the bore and defines at least one substantially enclosed displacement chamber.
Abstract: A positive displacement inductive pump includes a housing having first and second ends, and a bore extending from the first end to the second end. A piston is positioned entirely within the bore and defines at least one substantially enclosed displacement chamber. The piston includes a metal rod, and a corrosion resistant lining that completely encapsulates the metal rod. First and second inductive coils are each wrapped around an outer circumference of the housing and are each alternatingly energizable to produce respective first and second induced magnetic fields causing metal piston to move to oppositely located first and second positions within the bore. At least one check valve assembly is attached to one of the first and second ends and is in communication with the at least one displacement chamber. The at least one check valve assembly allows for the respective ingress and egress of a material into and out of the at least one displacement chamber through the check valve assembly and in dependence on a respective directional movement of the piston.
TL;DR: A positive displacement inductive pump as mentioned in this paper includes a central piston formed of a ferromagnetic material having non-ferromagnetic end pistons that extend from each of its opposite ends.
Abstract: A positive displacement inductive pump includes a central piston formed of a ferromagnetic material having non-ferromagnetic end pistons that extend from each of its opposite ends. Stationary end walls are mounted to opposite ends of a housing and are centrally bored. First and second inductive coils are alternately energized, causing the central piston and the end pistons to conjointly reciprocate within an axial bore and the end wall central bores, respectively. First and second check valves are positioned outboard of each end wall and allow valve-controlled ingress and egress of material into and out of the axial and central bores. The relative diameters of the central piston and the end pistons are changed to control the relationship between the magnetic force applied and the output pressure for a given volume of fluid.
TL;DR: In this paper, a hydraulic inductive pump full automatic controller is characterized in the utility model, which is composed of a casing body and a machine core, and the machine core is fixed in the casing body by screw bolts and composed of an inductive part, a resistance component and a contactor.
Abstract: The utility model relates to a hydraulic inductive pump full automatic controller. The utility model is characterized in that the utility model is composed of a casing body and a machine core, and the machine core is fixed in the casing body by screw bolts and is composed of an inductive part, a resistance component and a contactor. When the utility model is used, the resistance part rises or drops according to the size of water pressure, and a power supply of the contactor is switched on or off to control the work of a pump. The utility model has the characteristics of simple structure, convenient installation and debugging, reliable use, etc.