# US 11,027,576 B2 · Device for controlling temperature of hub

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- Number: US 11,027,576 B2
- Document ID: US11027576B2
- Status: Granted
- Kind: B2
- Application number: 16/362,163
- Filed: 2019-03-22
- Published: 2019-10-24
- Granted: 2021-06-08
- Earliest claimed: 2018-03-23
- Assignees: CITIC Dicastal Co., Ltd.
- Applicants: Citic Dicastal Co., Ltd
- Inventors: Ruixiao Zhou; Zhiyuan Yu
- Web page: https://patentgrep.com/patent/US11027576B2

## CPC

- B60B 27/0047: {characterised by functional integration of other elements}
- B60B 35/006: {with mounting plates or consoles fitted to axles}
- B60B 27/0068: {the element being a sensor}
- B60B 35/02: Dead axles, i.e. not transmitting torque
- B60B 35/06: cranked
- B60B 37/10: the wheels being individually rotatable around the axles
- B60R 16/033: characterised by the use of electrical cells or batteries (for propulsion puposes B60K1/04; supplying batteries to, or removing batteries from, vehicles B60S5/06; testing of charge state G01R31/36)
- F03D 9/11: storing electrical energy
- F03D 9/32: on moving objects, e.g. vehicles
- B60B 35/025: {the wheels being removable}
- B60B 2900/212: Damage
- B60B 2900/513: Cooling, e.g. of brakes
- F05B 2260/42: Storage of energy
- Y02E 10/72: Wind turbines with rotation axis in wind direction
- Y02E 10/728: Onshore wind turbines
- Y02E 70/30: Systems combining energy storage with energy generation of non-fossil origin
- B60B: VEHICLE WHEELS (making wheels or wheel parts by rolling B21H1/00, by forging, hammering or pressing B21K1/28); CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- F03D: WIND MOTORS
- F05B: INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A device for controlling the temperature of a hub includes a hub bearing mounted at a central hole of the hub, an axle mounted in the central hole through the hub bearing, an end cover mounted on a wheel disc outside the hub bearing, a temperature sensor, a water return passage, a motor, a turbine, a water storage tank, a water outlet passage, a wind driven generator, a rectifier, a battery, a controller and other components, wherein the water storage tank is arranged inside the axle and connected to the water outlet passage and the water return passage, the water passages are arranged inside the axle and connected to fluid, the turbine is arranged at the bottom of the water storage tank, and the turbine is driven by the motor at the bottom of the water storage tank.

## Claims

### Claim 1

A device for controlling the temperature of a hub, comprising:
a hub bearing, an axle, an end cover, a water return passage, a motor, a turbine, a water storage tank, and a water outlet passage, wherein the hub bearing is mounted at a central hole of the hub, the axle is mounted in the central hole through the hub bearing, and the end cover is mounted on a wheel disc outside the hub bearing, the water storage tank is arranged inside the axle and connected to the water outlet passage and the water return passage, the water outlet passage and the water return passage are connected fluidly, the turbine is arranged at the bottom of the water storage tank, and the turbine is driven by the motor at the bottom of the water storage tank.

### Claim 2 (depends on 1)

The device for controlling the temperature of a hub according to claim 1, further comprises:
a wind driven generator inside the axle with a hollow structure and a rectifier connected with the wind driven generator, wherein the center of the axle is connected to an outer side of the surface of the wheel disc, and wherein the wind driven generator is connected to the motor and drives the operation of the motor.

### Claim 3 (depends on 1)

The device for controlling the temperature of a hub according to claim 1, further comprising:
a battery connected to the wind driven generator and the motor, and wherein the battery is configured to obtain and store electrical energy from the wind driven generator, and drive the motor to run.

### Claim 4 (depends on 1)

The device for controlling the temperature of a hub according to claim 1, further comprising:
a controller and a temperature sensor connected to the controller and configured to transmit a temperature signal to the controller, and wherein the controller is configured to control the operation of the motor.

### Claim 5 (depends on 4)

The device for controlling the temperature of a hub according to claim 4, wherein the temperature sensor is embedded in the axle and is in contact with an inner ring of the hub bearing.

### Claim 6 (depends on 1)

The device for controlling the temperature of a hub according to claim 1, wherein at least a part of the outlet passage and a part of the return passage are located inside the axle and exposed to an air outlet of the wind driven generator.

### Claim 7 (depends on 6)

The device for controlling the temperature of a hub according to claim 6, wherein the surfaces of the outlet passage and the return passage are provided with threads having a depth of 0.2 mm-0.6 mm, a pitch of 15 mm-25 mm and a width of 2 mm-5 mm, and at least 10 cm-15 cm of the outlet passage and the return passage are exposed to the interior of the axle and the air outlet of the wind driven generator.