# US 11,999,387 B2 · Heat dissipation system for high-speed train running in low-vacuum tube

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- Number: US 11,999,387 B2
- Document ID: US11999387B2
- Status: Granted
- Kind: B2
- Application number: 17/615,528
- Filed: 2021-02-25
- Published: 2022-10-06
- Granted: 2024-06-04
- Earliest claimed: 2020-03-05
- Assignees: Hefei General Machinery Research Institute Co., Ltd.; Hefei General Environmental Control Technology Co., Ltd; Hiwing Technology Academy of Casic
- Applicants: Hefei General Machinery Research Institute Co., Ltd; Hefei General Environmental Control Technology Co., Ltd; Hiwing Technology Academy of Casic
- Inventors: Xiuping Zhang; Panpan Zhao; Junfeng Wu; Ru Zhang; Xiaoming Kong; Shuangqing Xu; Dao Zhou; Xudong Yuan; Kai Mao; Na Zhang; Ming Zhao; Shaowei Li; Jinglong Bo
- Web page: https://patentgrep.com/patent/US11999387B2

## CPC

- B61D 27/0072: {Means for cooling only (cooling in general F25)}
- B61B 13/08: Sliding or levitation systems (vehicles with air cushions between rails and vehicles B60V3/04)
- B61B 13/10: Tunnel systems (pneumatic tubes conveyors B65G {; B61C15/045 takes precedence})
- B61D: BODY DETAILS OR KINDS OF RAILWAY VEHICLES (vehicles in general B60; adaptation of vehicles to special systems B61B; underframes B61F)
- B61B: RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR (lifts or hoists, elevators, escalators, moving walkways B66B)

## Abstract

A heat dissipation system for a high-speed train running in a low-vacuum tube is provided. Component groups that provide power and resistance for the movement and stop of a train are provided at a periphery, close to the train, in a low-vacuum tube. The component group is provided with a group A cooling assembly. The group A cooling assembly includes a group A cooling-type heat exchanger and/or a group A nozzle assembly attached to the back of the component group. Since the friction between the train running at high speed and the air in the low-vacuum tube and the operation of the key equipment in the low-vacuum tube will generate a lot of heat, the group A cooling assembly in the component group in the low-vacuum tube exchanges the heat with the air in the low-vacuum tube.

## Claims

### Claim 1

A heat dissipation system for a high-speed train running in a vacuum tube, wherein in the vacuum tube, component groups, including a power source and a brake component, are disposed; each of the component groups is provided with a first cooling assembly; the first cooling assembly comprises a first cooling heat exchanger and/or a first nozzle assembly attached to a back of the component groups,
wherein the vacuum tube further comprises cavities located at a periphery of the train; the cavities extend linearly along an advancing direction of the train; the component groups are provided in the cavities; the cavities are provided with air vents along a length direction of the cavities such that, when the train moves forward, air inside the vacuum tube is pressed to circulate in the cavities and the tube and the air takes away heat generated by the component groups when the train moves.

### Claim 2 (depends on 1)

The heat dissipation system for the high-speed train running in the vacuum tube according to claim 1, wherein the vacuum tube is provided with a second cooling assembly; the second cooling assembly comprises a second cooling heat exchanger and/or a second nozzle assembly.

### Claim 3 (depends on 1)

The heat dissipation system for the high-speed train running in the vacuum tube according to claim 1, wherein when the first cooling assembly comprises the first cooling heat exchanger, or the second cooling assembly comprises the second cooling heat exchanger, the first cooling assembly or the second cooling assembly further comprises a cooling tower for providing a cold source for the first cooling heat exchanger or the second cooling heat exchanger; a transition unit is further provided between the cooling tower and the first cooling heat exchanger or the second cooling heat exchanger; the cooling tower and the transition unit are provided outside the vacuum tube.

### Claim 4 (depends on 3)

The heat dissipation system for the high-speed train running in the vacuum tube according to claim 3, wherein the transition unit comprises a plate heat exchanger or a refrigeration unit; a first heat exchange loop is formed between the plate heat exchanger or the refrigeration unit and the cooling tower; a second heat exchange loop is formed between the plate heat exchanger or the refrigeration unit and the first cooling heat exchanger or the second cooling heat exchanger.

### Claim 5 (depends on 3)

The heat dissipation system for the high-speed train running in the vacuum tube according to claim 3, wherein the transition unit further comprises a constant-temperature water tank; the constant-temperature water tank is provided between the plate heat exchanger or the refrigeration unit and the first cooling heat exchanger or the second cooling heat exchange.

### Claim 6 (depends on 2)

The heat dissipation system for the high-speed train running in the vacuum tube according to claim 2, wherein when the first cooling assembly comprises the first nozzle assembly, or the second cooling assembly comprises the second nozzle assembly, the first cooling assembly or the second cooling assembly further comprises a constant-temperature water tank, an automatic water replenishment valve, an on-off valve and a pump body; the constant-temperature water tank is connected to an external water source through the automatic water replenishment valve; the constant-temperature water tank comprises an output end for supplying water to the first nozzle assembly or the second nozzle assembly by using the on-off valve and the pump body in sequence.

### Claim 7 (depends on 1)

The heat dissipation system for the high-speed train running in the vacuum tube according to claim 1, wherein the cavities comprise a first cavity provided at the periphery of the train and along a line in the vacuum tube.

### Claim 8 (depends on 7)

The heat dissipation system for the high-speed train running in the vacuum tube according to claim 7, wherein an upper end surface of the first cavity is provided with a plurality of first air vents along the advancing direction of the train.

### Claim 9 (depends on 8)

The heat dissipation system for the high-speed train running in the vacuum tube according to claim 8, wherein the cavities comprise a second cavity provided at a bottom of the train and along the line in the vacuum tube; an upper end surface of the second cavity is a brake component that is provided with a plurality of second air vents along the advancing direction of the train.