Ejector with multi-mode nozzle, fuel cell system and control method

A fuel cell system, multi-mode technology, applied in fuel cells, jet pumps, circuits, etc., can solve problems such as poor stability, high cost, complex structure, etc., to reduce pressure performance requirements, improve efficiency, and increase the injection cross-sectional area. Effect

Inactive Publication Date: 2022-04-26
BEIJING SINOHYTEC
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex structure of this design scheme and the small size of the injector nozzle itself, the cost of this scheme is relatively high, and its stability is poor, so it is difficult to apply in engineering practice

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ejector with multi-mode nozzle, fuel cell system and control method
  • Ejector with multi-mode nozzle, fuel cell system and control method
  • Ejector with multi-mode nozzle, fuel cell system and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0028] As used herein, the term "comprise" and its variants mean open inclusion, ie "including but not limited to". The term "or" means "and / or" unless otherwise stated. The term "based on" means "based at least in part on". The terms "connected" and "communicated" mean connected or communicated directly or indirectly through other components. The terms "first", "second" and so on may refer to different or the same objects, but do not directly indicate a dif...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides an ejector with a multi-mode nozzle, a fuel cell system and a control method, the ejector is provided with an ejection fluid inlet, a backflow fluid inlet, a mixed fluid outlet and the multi-mode nozzle mounted on the ejection fluid inlet, the multi-mode spray head is provided with a main spraying channel and at least one auxiliary spraying channel, a one-way valve is arranged in the auxiliary spraying channel, and when the pressure is larger than a preset threshold value, the one-way valve is opened. According to the fuel cell ejector with the multi-mode nozzle, a fuel cell system can be better matched with a required reflux ratio under different working conditions.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to an ejector with a multi-mode nozzle, a fuel cell system and a control method. Background technique [0002] During the working process of the fuel cell stack, part of the anode gas (fuel gas) entering the stack undergoes an electrochemical reaction, while the remaining anode gas is discharged from the stack along with the reaction products. In order to improve the utilization rate of the anode gas, the fuel cell system is equipped with a circulation pipeline, which mixes the exhausted anode gas with the newly supplied anode gas, and re-enters the stack to participate in the reaction. [0003] The ejector is a device that uses a high-speed fluid to eject another low-speed fluid. It can use the newly supplied anode gas as a high-speed fluid to introduce the anode gas discharged from the stack into the ejector to mix with the newly supplied anode gas. And re-enter th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F04F5/16F04F5/46F04F5/48H01M8/04089H01M8/0438H01M8/04746H01M8/04537
CPCF04F5/16F04F5/466F04F5/48H01M8/04097H01M8/04589H01M8/04388H01M8/04753
Inventor 方川丁铁新李飞强张国强闪念陈勇刚任树兴李冯利
Owner BEIJING SINOHYTEC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap