Electric Water Pump
First Claim
1. An electric water pump apparatus comprising:
- a body having a hollow cylindrical shape, one end of which opens and the other end of which includes a front surface;
a stator having a hollow cylindrical shape and disposed in the body to generate a magnetic field according to a control signal;
a rotor enclosed in the stator and rotated by the magnetic field generated at the stator, wherein the rotor has a hollow cylindrical shape;
a pump cover having an inlet through which coolant flows in and an outlet through which pressurized coolant flows out;
wherein the front surface of the body and the pump cover form a volute chamber therebetween,wherein a stator chamber is formed at an outer portion in the body in a radial direction and the stator is mounted in the stator chamber, andwherein a rotor chamber is formed at an inner portion in the body and the rotor is mounted in the rotor chamber;
a shaft rotatably coupled to the front surface and fixed into the rotor so as to rotate together with the rotor about a central axis of the shaft, and mounted in the rotor chamber; and
an impeller fixed to a front portion of the shaft in the volute chamber so as to rotate together with the shaft, pressurizing the coolant having flowed in through the inlet,wherein the shaft includes a first shaft connecting the impeller and a front end portion of the rotor and a second shaft connected to a rear end portion of the rotor along the central axis of the shaft.
1 Assignment
0 Petitions
Accused Products
Abstract
An electric water pump apparatus may include a body, a stator disposed in the body, a rotor in the stator, a pump cover having an inlet and an outlet, wherein a front surface of the body and the pump cover form a volute chamber, wherein a stator chamber is formed at an outer portion in the body in a radial direction and the stator is mounted in the stator chamber, and wherein a rotor chamber is formed at an inner portion in the body and the rotor is mounted in the rotor chamber, a shaft rotatably coupled to the front surface and fixed into the rotor, and an impeller fixed to a front portion of the shaft, wherein the shaft includes a first shaft connecting the impeller and a front end portion of the rotor and a second shaft connected to a rear end portion of the rotor along the central axis of the shaft.
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Citations
18 Claims
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1. An electric water pump apparatus comprising:
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a body having a hollow cylindrical shape, one end of which opens and the other end of which includes a front surface; a stator having a hollow cylindrical shape and disposed in the body to generate a magnetic field according to a control signal; a rotor enclosed in the stator and rotated by the magnetic field generated at the stator, wherein the rotor has a hollow cylindrical shape; a pump cover having an inlet through which coolant flows in and an outlet through which pressurized coolant flows out; wherein the front surface of the body and the pump cover form a volute chamber therebetween, wherein a stator chamber is formed at an outer portion in the body in a radial direction and the stator is mounted in the stator chamber, and wherein a rotor chamber is formed at an inner portion in the body and the rotor is mounted in the rotor chamber; a shaft rotatably coupled to the front surface and fixed into the rotor so as to rotate together with the rotor about a central axis of the shaft, and mounted in the rotor chamber; and an impeller fixed to a front portion of the shaft in the volute chamber so as to rotate together with the shaft, pressurizing the coolant having flowed in through the inlet, wherein the shaft includes a first shaft connecting the impeller and a front end portion of the rotor and a second shaft connected to a rear end portion of the rotor along the central axis of the shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification