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Pressurizer for hydrogen fuel vehicle and braking gas taking and pressurizing system and method

A technology of supercharging system and hydrogen fuel, applied in machine/engine, transportation hydrogen technology, climate sustainability, etc., to achieve the effect of improving decompression efficiency, improving energy utilization efficiency, and reducing the impact of hydrogen pressure

Pending Publication Date: 2021-02-12
ZHONGTONG BUS HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present disclosure is to provide a supercharger for hydrogen fuel vehicles, which can reduce the problem of excessive power consumption of air compressors caused by air braking in existing hydrogen fuel cell buses

Method used

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  • Pressurizer for hydrogen fuel vehicle and braking gas taking and pressurizing system and method
  • Pressurizer for hydrogen fuel vehicle and braking gas taking and pressurizing system and method
  • Pressurizer for hydrogen fuel vehicle and braking gas taking and pressurizing system and method

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Embodiment 1

[0033] Such as figure 1 As shown, this embodiment provides a supercharger 1 for a hydrogen fuel vehicle, which includes a cylinder body with both ends blocked, a spring 18 and a piston plate group capable of moving along the axis of the cylinder body are arranged in the cylinder body, and the piston plate group will The inner cavity of the cylinder is divided into an isolated decompression chamber 110 and a pressurization chamber 14, and the spring 18 can provide the elastic force for the piston plate group to move toward the decompression chamber 110;

[0034] The end of the decompression chamber 110 away from the pressurization chamber 14 can be connected to the high-pressure gas supply end of the on-board hydrogen system 2, and the middle part of the cylinder is provided with a hydrogen outlet for connecting the inner cavity of the cylinder with the low-pressure return air end of the on-board hydrogen system 2; The end of the pressure chamber 14 away from the decompression ...

Embodiment 2

[0041] Such as Figure 2-Figure 4As shown, this embodiment provides a hydrogen-fueled vehicle braking air intake boosting system, the air boosting system includes the boost controller 24 described in Embodiment 1, and the boost controller 24 can control the decompression chamber 110 The hydrogen gas with relatively high pressure is obtained from the on-board hydrogen system 2, and the air filtered by the air filter 13 is boosted to a limited pressure through the supercharger 1. During the process, the hydrogen in the supercharger 1 is decompressed, and the air Get supercharged. The pressurized air enters the brake air intake system 3, is condensed by the condenser 31, and dried by the dryer 32. The pressurized air is stored in the gas storage cylinder group for use when the vehicle brakes; decompression The final hydrogen returns to the vehicle-mounted hydrogen system 2 through the hydrogen buffer tank 5 .

[0042] The on-board hydrogen system 2 is the hydrogen storage and s...

Embodiment 3

[0053] In this embodiment, a hydrogen-fueled vehicle brake intake boosting method is provided, which utilizes the hydrogen fuel vehicle brake intake booster system, including the following steps:

[0054] The solenoid valve 11 is opened, high-pressure hydrogen is charged into the decompression chamber 110, and the pressurization chamber 14 is filled with normal-pressure air; the high-pressure hydrogen pushes the piston plate group to move toward the pressurization chamber 14; before the hydrogen outlet communicates with the decompression chamber 110 , the solenoid valve 11 is closed; the air at normal pressure in the pressurization chamber 14 is compressed;

[0055] When the piston plate group moves to the limit position toward the pressurization chamber 14, the decompressed hydrogen in the decompression chamber 110 is discharged into the low-pressure return air end of the vehicle-mounted hydrogen system 2 through the hydrogen outlet; the air in the pressurization chamber 14 is...

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Abstract

The invention relates to a pressurizer for a hydrogen fuel vehicle and a braking gas taking and pressurizing system and method. The pressurizer comprises a barrel with the two ends sealed, a piston plate set capable of moving along the axis of the barrel is arranged in the barrel and divides an inner cavity of the barrel into a pressure reducing cavity and a pressurizing cavity which are isolated,and one end of the pressure reducing cavity can communicate with the high-pressure gas supply end of a vehicle-mounted hydrogen system; a hydrogen outlet is formed in the middle of the barrel and used for communicating an inner cavity of the barrel with the low-pressure gas return end of the vehicle-mounted hydrogen system; the end, away from the pressure reducing cavity, of the pressurizing cavity can be unidirectionally communicated with the external atmospheric environment and the air cylinder. When the piston plate group moves towards the pressurizing cavity to a limit position, the hydrogen outlet is exposed in the pressure reducing cavity; and when the piston plate group moves towards the pressure reducing cavity to a limit position, the hydrogen outlet is not communicated with thepressurizing cavity.

Description

technical field [0001] The disclosure belongs to the technical field of hydrogen fuel vehicles, and in particular relates to a supercharger for a hydrogen fuel vehicle, a braking air intake supercharging system and a method. Background technique [0002] Hydrogen fuel cell is the most promising new generation of green energy power system in the 21st century. With the development of technology and the promotion of policies, hydrogen fuel cell bus will eventually become a substitute for traditional bus. The inventors have learned that the current hydrogen storage systems of hydrogen fuel cell buses mostly use 350bar or 700bar high-pressure hydrogen storage. However, the intake pressure of hydrogen fuel cell engines is mostly less than 10bar, and the high-pressure hydrogen in the on-board hydrogen system needs to be decompressed before it can be used. [0003] At present, the braking system of hydrogen fuel cell buses mostly adopts the air braking method. The air pressure in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L50/70B60L50/72F04B35/02
CPCB60L50/70B60L50/72F04B35/00Y02T90/16Y02T90/40
Inventor 刘雷李晨王波冀秀芳薛守飞周利伟王保龙
Owner ZHONGTONG BUS HLDG
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