Railway vehicle with aerodynamic lift control device

Patent metadata

Field	Value
Publication number	US-11718182-B2
Application number	US-202017788763-A
Country	US
Kind code	B2
Filing date	May 18, 2020
Priority date	Jan 2, 2020
Publication date	Aug 8, 2023
Grant date	Aug 8, 2023

Abstract

A railway vehicle with an aerodynamic lift control device is disclosed. An equipment compartment is formed between a vehicle body bottom plate at the bottom of a vehicle body and a passenger room floor, and the aerodynamic lift control device is provided in the equipment compartment; the aerodynamic lift control device comprises an aerodynamic lift regulation fan and aerodynamic lift air ducts, and an aerodynamic lift regulation air port located within the aerodynamic lift control range is formed in the vehicle body bottom plate; one end of each aerodynamic lift regulating air duct communicates with the aerodynamic lift regulation air port, and the other end communicates with the aerodynamic lift regulating fan; and the aerodynamic lift regulation fan changes the pressure distribution form of the bottom of the train by blowing positive pressure airflow or sucking negative pressure airflow.

First claim

The invention claimed is:

1. A railway vehicle with an aerodynamic lift control device, comprising a vehicle body and a travelling mechanism arranged at a bottom of the vehicle body, wherein an equipment compartment is formed between a vehicle body bottom floor at the bottom of the vehicle body and a passenger room floor, and the aerodynamic lift control device is provided in the equipment compartment; the aerodynamic lift control device comprises an aerodynamic lift regulation air blower and aerodynamic lift regulation air ducts, aerodynamic lift regulation air ports are provided in the vehicle body bottom floor within an aerodynamic lift control range; one end of each aerodynamic lift regulation air duct is in communication with the corresponding aerodynamic lift regulation air port, the other end of each aerodynamic lift regulation air duct is in communication with the aerodynamic lift regulation air blower;
wherein the aerodynamic lift control device is configured such that:
a positive pressure airflow is blown from the aerodynamic lift regulation air ports to a gap between the bottom of the vehicle body and a rail surface through the aerodynamic lift regulation air ducts when the aerodynamic lift regulation air blower is in a positive pressure working state,
a negative pressure airflow is sucked from the gap between the bottom of the vehicle body and the rail surface through the aerodynamic lift regulation air ducts and the aerodynamic lift regulation air ports when the aerodynamic lift regulation air blower is in a negative pressure working state, and
a pressure distribution at the bottom of the railway vehicle is changed by blowing the positive pressure airflow or sucking the negative pressure airflow.

2. The railway vehicle with the aerodynamic lift control device according to claim 1 , wherein the aerodynamic lift regulation air ports are spaced apart along a longitudinal centerline direction on the vehicle body bottom floor, at least part of the aerodynamic lift regulation air ports are close to a front end of the vehicle body bottom floor, and at least another part of the aerodynamic lift regulation air ports are close to a rear end of the vehicle body bottom floor.

3. The railway vehicle with the aerodynamic lift control device according to claim 1 , wherein the aerodynamic lift regulation air ports are symmetrically distributed about a longitudinal centerline on the vehicle body bottom floor, the aerodynamic lift regulation air ports on each side are spaced apart in a longitudinal direction, at least part of the aerodynamic lift regulation air ports are close to a front end of the vehicle body bottom floor, and at least another part of the aerodynamic lift regulation air ports are close to a rear end of the vehicle body bottom floor.

4. The railway vehicle with the aerodynamic lift control device according to claim 1 , wherein the aerodynamic lift regulation air blower is a variable frequency air blower or a fixed frequency air blower, an air port baffle for regulating an air inlet area of the aerodynamic lift regulation air port is provided at each aerodynamic lift regulation air port, which cooperates with the aerodynamic lift regulation air blower to regulate an air volume and an air velocity of the positive pressure airflow or the negative pressure airflow.

5. The railway vehicle with the aerodynamic lift control device according to claim 1 , wherein a filter screen device is mounted at each aerodynamic lift regulation air port, to prevent debris on a track from entering the corresponding aerodynamic lift regulation air duct.

6. The railway vehicle with the aerodynamic lift control device according to claim 1 , wherein a control device of the aerodynamic lift regulation air blower is connected to a vehicle control system so as to remotely control an air volume and an air velocity of the aerodynamic lift regulation air blower.

7. The railway vehicle with the aerodynamic lift control device according to claim 1 , wherein an air port of each aerodynamic lift regulation air duct is in splicing connection with the aerodynamic lift regulation air port.

8. The railway vehicle with the aerodynamic lift control device according to claim 7 , wherein the air port of each aerodynamic lift regulation air duct is in splicing connection with the aerodynamic lift regulation air port by a bolt or a rivet.

9. The railway vehicle with the aerodynamic lift control device according to claim 1 , wherein the aerodynamic lift regulation air port comprise a first air port close to a front end of the vehicle body and a second air port close to a rear end of the vehicle body, the aerodynamic lift regulation air blower is substantially arranged in the middle of the vehicle body, the aerodynamic lift regulation air ducts comprise a first air duct located on a front side of the aerodynamic lift regulation air blower and a second air duct located on a rear side of the aerodynamic lift regulation air blower, the first air port is in communication with the aerodynamic lift regulation air blower through the first air duct, and the second air port is in communication with the aerodynamic lift regulation air blower through the second air duct.

10. The railway vehicle with the aerodynamic lift control device according to claim 1 , comprising a plurality of compartments, wherein the aerodynamic lift control device is provided in a first compartment and/or a last compartment.

11. The railway vehicle with the aerodynamic lift control device according to claim 1 , wherein the railway vehicle is a maglev train.

Assignees

• Crrc Qingdao Sifang Co Ltd

Inventors

• Ding Sansan
• Yao Shuanbao
• Chen Dawei
• Liu Shaoqing
• Jiang Fujie

Classifications

• B60L13/06 Primary

  Means to sense or control vehicle position or attitude with respect to railway · CPC title

• B61B13/08

  Sliding or levitation systems (vehicles with air cushions between rails and vehicles B60V3/04) · CPC title

• B60L2200/26

  Rail vehicles · CPC title

• Y02T30/00

  Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance · CPC title