Pump
AssigneeJohnson Electric S.A.
InventorsChuan Jiang GUO, Chuan Hui FANG, Hay Tak TSANG
Life of this patent
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Abstract
A liquid pump has a pump housing defining a pump chamber. A motor is accommodated within the pump housing and separated from the pump chamber by an end cap. An impeller disposed within the pump chamber is driven by the motor. The pump chamber has an inlet and one or more outlets. The outlets are located on a sidewall of the pump chamber and extend in a direction substantially tangential to an outer circumference of the pump chamber. Each outlet has a first end near the pump chamber, and a second end remote from the pump chamber. A cross-sectional area S1 of the first end is smaller than a cross-sectional area S2 of the second end, forming a diffuser within the outlet.
Claims17
A liquid pump, comprising:
- a pump housing defining a pump chamber;
- a motor having a shaft and being fixed to the pump housing;
- an impeller attached to the shaft and accommodated within the pump chamber, the impeller having a central body and a plurality of vanes extending radially outwards from the central body;
- an inlet in fluid communication with the pump chamber;
- and
- an outlet in fluid communication with the pump chamber, the outlet having a first end adjacent to the pump chamber and a second end remote from the pump chamber,
- wherein a cross-sectional area of the first end S1 is less than a cross-sectional area of the second end S2.
Dependencies are inferred from the claim text.