Air pressurization system with centrifugal oil pump for fuel cell

A technology of centrifugal oil pump and fuel cell, which is applied in the direction of electrical components, pumps, pump devices, etc., can solve the problems of easy failure and poor axial force balance, so as to improve the service life, reduce time and cost, and facilitate maintenance and replacement Effect

Inactive Publication Date: 2021-06-29
XI AN JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention proposes an air pressurization system for fuel cells with a centrifugal oil pump to solve the problems of poor axial force balance and easy failure at high temperature and high speed in the existing air pressurization system

Method used

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  • Air pressurization system with centrifugal oil pump for fuel cell
  • Air pressurization system with centrifugal oil pump for fuel cell
  • Air pressurization system with centrifugal oil pump for fuel cell

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Embodiment 1

[0031] Embodiment 1: as figure 1 , 2 A fuel cell air pressurization system with a centrifugal oil pump is shown, including a centrifugal oil pump 1, a double output shaft motor 2, a speed increaser 3, and a centrifugal air compressor 4. When the system is working, it can operate according to the fuel cell stack The required power is adjusted by the frequency converter to adjust the speed of the water-cooled double-output shaft motor 2 .

[0032] The double output shaft motor 2 is a shaft structure with two ends extending out, including a first gland 23, a second gland 24, and a first motor shaft 21 and a second motor shaft 22 symmetrically arranged on both sides of the body of the dual output shaft motor 2. The second motor shaft 22 is a hollow structure and at least one first oil hole 221 is opened in the radial direction on the side wall of the second motor shaft 22, and one end of the first motor shaft 21 passes through the first gland 23 and is connected to the centrifuga...

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Abstract

The invention relates to the technical field of centrifugal compressors, in particular to an air pressurization system with a centrifugal oil pump for a fuel cell. The system comprises a double-output-shaft motor, the centrifugal oil pump, a centrifugal air compressor, a cooling medium circulation channel and a lubricating oil circulation channel, the centrifugal oil pump and the centrifugal air compressor are respectively arranged at two ends of the double-output shaft motor, and a speed increaser used for increasing the rotating speed of a shaft end of the double-output-shaft motor is arranged between the double-output-shaft motor and the centrifugal air compressor; and the cooling medium circulation channel is formed in an outer shell of the double-output-shaft motor, at least one part of the lubricating oil circulation channel is formed in an inner shell of the double-output-shaft motor, and the lubricating oil circulation channel communicates with an oil outlet of the centrifugal oil pump through an external pipe. The air pressurization system with the centrifugal oil pump for the fuel cell solves the problems that an existing air pressurization system is poor in axial force balance and prone to failure at the high temperature and the high rotating speed.

Description

technical field [0001] The invention relates to the technical field of centrifugal compressors, in particular to an air booster system for fuel cells with a centrifugal oil pump. Background technique [0002] The air compressor is an important part of the cathode air supply system of the vehicle fuel cell system. By pressurizing the inlet air of the fuel cell stack, it can simultaneously improve the power density and efficiency of the fuel cell, reduce the size of the fuel cell, and facilitate water and heat management. And so on. [0003] The electrochemical reaction of the fuel cell has more stringent requirements on air temperature, humidity, pressure and flow than traditional air compressors. Therefore, a compressor with superior performance and a good match with the fuel cell system is very important for the fuel cell system. Oil-free, high efficiency, miniaturization, low cost, and low noise are the basic requirements for air compressors dedicated to fuel cell engine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D17/10F04D13/06H02K5/20H02K7/08H02K9/19
CPCF04D17/10F04D13/06H02K5/20H02K7/08H02K9/19
Inventor 贾晓晗陈钦隆李佐良史婷冯健美彭学院
Owner XI AN JIAOTONG UNIV
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