Shinmaywa Industries, Ltd.

Motonobu Tarui

Junya Enomoto

Kazuki Takeuchi

Arata Funasaka

Takashi Kunihara

Akihiro Ando

Yasuyuki Nishi

Terumasa Okizoe

Nobukazu Tanaka

Yasuhide Okazaki

Hiroshi Kanki

An example impeller includes: an impeller body in which an internal channel is formed, the internal channel extending inside the impeller body in a direction of a rotation axis spirally about the rotation axis to connect an inlet and an outlet; and at least one centrifugal vane provided in the impeller body. The internal channel including the inlet and the outlet has a predetermined passage diameter. An external channel is formed so as to continue to the outlet and go around the circumferential surface of the impeller body, the external channel being defined by the centrifugal vane and being recessed inward in the radial direction from the circumferential surface of the impeller body. At least a part in a flow direction of the external channel has a channel width in the direction of the rotation axis smaller than the width of the outlet.

Impeller and centrifugal pump including the same

An impeller includes an impeller body which rotates about a rotation axis, and a vane which is provided at the impeller body. The impeller body receives force asymmetric with respect to the rotation axis in driving and rotation in a fluid in a manner that radially inward fluid force, which is generated due to arrangement of the vane, acts on a predetermined point in a peripheral direction. In the impeller body, a filled space filled, in a fluid, with the fluid is formed.

Impeller and pump including the same

Pump impeller

Growing community of inventors

Hyogo, Japan

Motonobu Tarui