US 2020/0271127 A1Published application

Centrifugal Pump

AssigneeAisan Kogyo Kabushiki Kaisha

InventorsYoshihiko HONDA, Hironori SUZUKI

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Abstract

A centrifugal pump includes an impeller rotated about a rotational axis in a rotational direction by a motor and a housing defining a pump chamber therein. The impeller is housed in the pump chamber. The impeller includes a main plate having substantially circular shape and a first surface extending perpendicular to the rotational axis. The main plate is provided with a plurality of blades projecting axially from the first surface and extending radially along the first surface. Each of the blades has a radially inner blade part and a radially outer blade part extending radially outward from the radially inner blade part. Each of the outer blade parts has a front surface that extends from the main plate obliquely either frontward or rearward relative to the rotational direction.

Claims10

Dependent claims

A centrifugal pump, comprising:

an impeller configured to be rotated in a rotational direction about a rotational axis by a motor, wherein the impeller includes a main plate and a plurality of blades, wherein the main plate has a substantially circular shape and a first surface, wherein each of the blades extends axially from the first surface of the main plate and radially along the first surface of the main plate;
and
a housing defining a pump chamber that houses the impeller therein, wherein the housing includes an inlet port configured to supply a fluid into the pump chamber axially toward a center of the first surface of the main plate and an outlet port configured to discharge the fluid in a tangential direction from the pump chamber, wherein:
each of the blades has a radially inner blade part and a radially outer blade part extending radially outward from the radially inner blade part, and
each of the radially outer blade parts has a front surface that extends from the main plate obliquely rearward relative to the rotational direction.

2 more elements

A centrifugal pump, comprising:

an impeller configured to be rotated about a rotational axis in a rotational direction by a motor, wherein the impeller includes a main plate and a plurality of blades, wherein the main plate has a substantially circular shape and a first surface, wherein each of the blades projects axially from the first surface of the main plate and extends radially along the first surface of the main plate;
and
a housing defining a pump chamber that houses the impeller therein, wherein the housing includes an inlet port configured to supply a fluid into the pump chamber axially toward a center of the first surface of the main plate and an outlet port configured to discharge the fluid from the pump chamber in a tangential direction, wherein:
each of the blades has a radially inner blade part and a radially outer blade part that extends radially outward from the radially inner blade part, and
each of the radially outer blade parts has a front surface that extends from the main plate obliquely frontward relative to the rotational direction.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/790,893Filed 14 Feb 2020
Priority: JP 2019-02940121 Feb 2019
Published: 27 Aug 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

F04D 29/24
Specially for centrifugal pumps: vanes
F04D 29/4206
For radial or helico-centrifugal pumps: especially adapted for elastic fluid pumps
F04D 7/02
Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts: of centrifugal type
F04D 29/28
Rotors specially for elastic fluids: for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps