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US 6,554,584 B2Granted
Inline type pump
AssigneeToshiba Tec Kabushiki Kaisha
InventorsToshiyasu Takura, Yoshifumi Tanabe
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Abstract
An inline type pump in which a rotor having an axial flow vane is arranged inside the cylindrical stator. The fluid is discharged from the discharging port after a rotating kinetic energy of the fluid transferred by the axial flow vane toward the discharging port is changed into a static pressure energy at the pressure chamber. With such an arrangement as above, it is possible to increase a fluid supplying efficiency after satisfying a small-sized structure and further it is possible to increase an output of the pump as well as its efficiency.
Claims13
An inline type pump comprising:
- a cylindrical stator arranged between a suction port and a discharging port;
- a rotor rotatably arranged inside the stator;
- an axial flow vane integrally arranged with the rotor for axially feeding fluid sucked from the suction port toward the discharging port;
- and
- a pressure chamber for converting a rotational kinetic energy of the fluid sent toward the discharging port by the axial flow vane of the rotor into a static pressure energy,
- wherein the rotor includes a plurality of salient poles at its outer diameter and is formed with an axial communicated helical recess at its outer circumference to constitute the axial flow vane, and
- wherein the pressure chamber is a space having a larger inner diameter than an inner diameter of at least the discharging port in a direction crossing at a right angle with a rotating shaft of the rotor.
4 more elements
Dependencies are inferred from the claim text.