Fluid pump
AssigneeJohnson Electric International AG
InventorsGequn Cheng, Xiaohui Wang, Jianwei Sun
Life of this patent
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Abstract
A fluid pump includes a pump casing, an impeller arranged in the pump casing, and a motor for driving the impeller to rotate in the pump casing. The pump casing includes a metal sleeve arranged therein and dividing an internal space of the pump casing into a first space and a second space. The motor includes a stator received in the second space and a rotor received in the first space. The rotor is fixedly connected to the impeller and rotatably connected to a shaft. A shaft sleeve is fixedly arranged in the sleeve, and an end of the shaft is fixedly inserted into the shaft sleeve.
Claims12
A fluid pump comprising:
- a pump casing comprising a metal sleeve arranged therein and dividing an internal space of the pump casing into a first space and a second space, wherein the metal sleeve has a cylindrical structure with an open end and a closed end, and a shaft seat protrudes outward from the closed end away from the open end;
- an impeller arranged in the pump casing outside the metal sleeve and faces the open end of the metal sleeve;
- and
- a motor for driving the impeller to rotate in the pump casing, the motor comprising a stator received in the second space and a rotor received in the first space, wherein the rotor is fixedly connected to the impeller and rotatably connected to a shaft, a shaft sleeve is fixedly arranged in the shaft seat of the metal sleeve, and an end of the shaft is fixedly inserted into the shaft sleeve, and the impeller is arranged on the other end of the shaft, wherein one end of the shaft sleeve is inserted into the shaft seat, and the other end of the shaft sleeve facing the impeller extends beyond the shaft seat, a positioning ring extends radially outward from the other end of the shaft sleeve to axially abut against an inner surface of the closed end of the metal sleeve.
Dependencies are inferred from the claim text.