Angular oscillation centrifugal pump
AssigneeImagina Holdings Co., Ltd.
InventorsTakahito Imagawa, Atsunori Miyamura
Life of this patent
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Abstract
A turbo type centrifugal pump is provided in which an angular oscillator is angularly oscillated so that fluid in a radial through hole receives centrifugal force. The angular oscillator is used in combination with a resonance oscillation motor that generates angular oscillation. The resonance oscillation motor is incorporated in the pump so that the pump structure and the drive mechanism are integrated. This reduces the size of the pump. Since the angular oscillation is a reciprocating rotation within an oscillation range less than 360°, a suction pipe can be connected to the radial through hole used in the angular oscillation. This eliminates the necessity for providing a shielding structure.
Claims9
An angular oscillation centrifugal pump comprising:
- a case;
- an angular oscillator accommodated in the case and rotatable in a reciprocating manner, the angular oscillator having a first magnetic dipole and a pressure feed passage, the pressure feed passage having a pressure feed inlet for receiving fluid and a pressure feed outlet through which the fluid is discharged;
- a retaining portion that is provided in the case to retain the angular oscillator, the retaining portion retaining the angular oscillator based on magnetic force generated by the first magnetic dipole and including a second magnetic dipole or a magnetic body, the angular oscillator being oscillatable relative to the retaining portion, and the magnetic force defining a rest point of the oscillation of the angular oscillator and the natural frequency of the oscillation;
- and
- an electromagnetic coil provided in the case, wherein, when a current that is synchronized with the natural frequency is supplied to the electromagnetic coil, the angular oscillator is resonated, and as a result, the fluid in the pressure feed passage receives centrifugal force and is discharged from the pressure feed outlet.
Dependencies are inferred from the claim text.