tooth profile of claw pump rotor

A claw pump and rotor technology, applied in the field of mechanical parts, can solve the problems of poor area utilization, low air tightness, low efficiency, etc.

Active Publication Date: 2020-10-27
中船重工(重庆)西南装备研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The research on the tooth shape of the claw pump rotor is not only the basis for the research on the thermodynamic performance of the claw hydrogen circulating pump, but also the key to improving the performance of the whole machine. Poor problem, this application provides a claw pump rotor tooth profile

Method used

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  • tooth profile of claw pump rotor
  • tooth profile of claw pump rotor
  • tooth profile of claw pump rotor

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Embodiment Construction

[0038] Hereinafter, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. According to these detailed descriptions, those skilled in the art can clearly understand the present application and can implement the present application. Without departing from the principle of the present application, the features in different embodiments can be combined to obtain new implementations, or some features in certain embodiments can be replaced to obtain other preferred implementations.

[0039] As early as the 1990s, the research on claw pumps began abroad. After continuous development, some foreign manufacturers have successfully introduced claw pumps to the market. Among them, the more famous ZEPHYR series products produced by Rietschle company, AtlasCopco company The ZR / ZT series products produced by BUSCH, as well as the Mink-MI series products produced by BUSCH; and BUSCH has launched claw hydrogen circulation pump pr...

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Abstract

An existing claw type nitrogen circulating pump is not high in airtightness, low in efficiency and poor in area utilization. The invention provides a rotor tooth profile. The rotor tooth profile comprises a driven rotor and a driving rotor which are used in cooperation. The driven rotor comprises a first rotor part and a second rotor part. The first rotor part and the second rotor part are in central symmetry. The first rotor part comprises a first tooth root and a first tooth top which are connected with each other. The first tooth root comprises a first arc section. The first tooth top comprises a first pin tooth arc section. The driving rotor comprises a third rotor part and a fourth rotor part. The third rotor part and the fourth rotor part are in central symmetry. The third rotor partcomprises a second tooth root and a second tooth top which are connected with each other. The second tooth root comprises a second pin tooth arc section. The second tooth top comprises a first arc envelope line section. The first pin tooth arc section and the second pin tooth arc section are conjugated, and the first arc section and the first arc envelope line section are conjugated. The airtightness of the claw type nitrogen circulating pump is improved, the internal leakage of nitrogen is reduced, and good intake and exhaust are realized.

Description

technical field [0001] The application belongs to the technical field of mechanical parts, and in particular relates to a claw pump rotor tooth shape. Background technique [0002] As one of the core components of hydrogen fuel cell vehicle technology, the hydrogen circulation pump has special requirements for the pump's performance and operating environment. On the one hand, in order to ensure that the proton exchange membrane has good working characteristics, the hydrogen supplied to the fuel cell stack by the gas supply system is required to be absolutely clean and have a certain humidity; on the other hand, in order to ensure that the proton exchange membrane fuel cell has better comprehensive performance, The gas supply subsystem is required to be able to adjust the gas supply volume and gas supply pressure in time according to the output power of the fuel cell, and has the characteristics of compact structure, light weight, low noise, high reliability, and energy recov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C29/00F04C18/18
CPCF04C18/18F04C29/00F04C2240/20F04C2250/20
Inventor 甘露贺雪强周霜梅黄魏孟婵君王雷雷冯健美
Owner 中船重工(重庆)西南装备研究院有限公司
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