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WO2018132019A3 - Améliorations apportées à des pompes à griffes rotatives - Google Patents

Améliorations apportées à des pompes à griffes rotatives Download PDF

Info

Publication number
WO2018132019A3
WO2018132019A3 PCT/NZ2017/050176 NZ2017050176W WO2018132019A3 WO 2018132019 A3 WO2018132019 A3 WO 2018132019A3 NZ 2017050176 W NZ2017050176 W NZ 2017050176W WO 2018132019 A3 WO2018132019 A3 WO 2018132019A3
Authority
WO
WIPO (PCT)
Prior art keywords
rotation
pair
discharge port
thickness
rotor
Prior art date
Application number
PCT/NZ2017/050176
Other languages
English (en)
Other versions
WO2018132019A2 (fr
Inventor
John Fleming
Original Assignee
John Fleming
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by John Fleming filed Critical John Fleming
Priority to US16/484,214 priority Critical patent/US20200032799A1/en
Publication of WO2018132019A2 publication Critical patent/WO2018132019A2/fr
Publication of WO2018132019A3 publication Critical patent/WO2018132019A3/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/082—Details specially related to intermeshing engagement type pumps
    • F04C18/084—Toothed wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/123—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially or approximately radially from the rotor body extending tooth-like elements, co-operating with recesses in the other rotor, e.g. one tooth
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2250/00—Geometry
    • F04C2250/20—Geometry of the rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/17—Tolerance; Play; Gap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)

Abstract

La présente invention concerne une pompe à griffes rotative, au moins une paire de rotors s'engrenant entre eux ayant la même forme dans une tolérance de plus ou moins 3 pour cent des rayons depuis les bords de leurs formes jusqu'à leurs centres de rotation, et présentant un taux uniforme nominal de changement de rayon avec un angle de rotation sur une partie convexe des griffes, et pouvant comporter plusieurs étages, l'épaisseur de chaque paire de rotors successifs ne variant pas dans le profil mais présentant une épaisseur correspondant au maximum à 20 % de l'épaisseur de la paire de rotors de premier étage multipliée par les produits inverses des taux de compression des étages précédents et un orifice d'évacuation étant au moins en partie découvert à n'importe quelle position de rotation, de la position où une paire de pointes de rotors à griffes s'engrenant entre elles sont à leur point d'approche le plus proche à celle où lesdites pointes de griffes sont à leur distance la plus éloignée, et ledit orifice d'évacuation étant au moins en partie relié à une région reliée aux pointes de rotors desdites griffes pendant lesdites positions de rotation, et l'orifice d'évacuation limite ainsi au moins une augmentation de pression dans ladite région.
PCT/NZ2017/050176 2017-01-10 2017-12-27 Améliorations apportées à des pompes à griffes rotatives WO2018132019A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/484,214 US20200032799A1 (en) 2017-01-10 2017-12-27 Improvements in rotary claw pumps

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ728157 2017-01-10
NZ72815717 2017-01-10

Publications (2)

Publication Number Publication Date
WO2018132019A2 WO2018132019A2 (fr) 2018-07-19
WO2018132019A3 true WO2018132019A3 (fr) 2019-01-31

Family

ID=62840226

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NZ2017/050176 WO2018132019A2 (fr) 2017-01-10 2017-12-27 Améliorations apportées à des pompes à griffes rotatives

Country Status (2)

Country Link
US (1) US20200032799A1 (fr)
WO (1) WO2018132019A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111120328B (zh) * 2019-12-31 2020-10-27 中船重工(重庆)西南装备研究院有限公司 一种爪式泵转子齿形
CN111637055B (zh) * 2020-07-03 2025-03-14 中国石油大学(华东) 一种爪式压缩机
FR3117176B1 (fr) * 2020-12-04 2023-03-24 Pfeiffer Vacuum Pompe à vide
CN112628141A (zh) * 2020-12-18 2021-04-09 汉纬尔机械(上海)有限公司 一种带台阶不对称主转子
CN114320921B (zh) * 2021-12-30 2023-08-25 中船重工(重庆)西南装备研究院有限公司 一种双头爪式泵转子型线的设计方法
CN114658656B (zh) * 2022-03-04 2024-05-24 中科仪(南通)半导体设备有限责任公司 一种用于干式真空泵的直爪式转子及其设计方法
CN115289017B (zh) * 2022-08-30 2024-07-30 山东亿宁环保科技有限公司 一种同型多爪转子
CN115559901B (zh) * 2022-12-07 2023-03-24 中核第七研究设计院有限公司 一种爪式真空泵转子及真空泵

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4983107A (en) * 1987-05-15 1991-01-08 Leybold Aktiengesellschaft Multistage rotary piston vacuum pump having sleeves to fix shaft positions
US20120257961A1 (en) * 2009-12-24 2012-10-11 Anest Iwata Corporation Multistage vacuum pump
US20140227122A1 (en) * 2011-09-30 2014-08-14 Anest Iwata Corporation Claw pump
KR20160011615A (ko) * 2013-05-30 2016-02-01 오리온 기까이 가부시끼가이샤 2축 회전펌프
US20160258435A1 (en) * 2013-11-05 2016-09-08 Anest Iwata Corporation Claw pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4983107A (en) * 1987-05-15 1991-01-08 Leybold Aktiengesellschaft Multistage rotary piston vacuum pump having sleeves to fix shaft positions
US20120257961A1 (en) * 2009-12-24 2012-10-11 Anest Iwata Corporation Multistage vacuum pump
US20140227122A1 (en) * 2011-09-30 2014-08-14 Anest Iwata Corporation Claw pump
KR20160011615A (ko) * 2013-05-30 2016-02-01 오리온 기까이 가부시끼가이샤 2축 회전펌프
US20160258435A1 (en) * 2013-11-05 2016-09-08 Anest Iwata Corporation Claw pump

Also Published As

Publication number Publication date
WO2018132019A2 (fr) 2018-07-19
US20200032799A1 (en) 2020-01-30

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