FR3086012B1 - DRY TYPE VACUUM PUMP - Google Patents

DRY TYPE VACUUM PUMP Download PDF

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Publication number
FR3086012B1
FR3086012B1 FR1858443A FR1858443A FR3086012B1 FR 3086012 B1 FR3086012 B1 FR 3086012B1 FR 1858443 A FR1858443 A FR 1858443A FR 1858443 A FR1858443 A FR 1858443A FR 3086012 B1 FR3086012 B1 FR 3086012B1
Authority
FR
France
Prior art keywords
vacuum pump
lubricant
intended
guide wall
type vacuum
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
FR1858443A
Other languages
French (fr)
Other versions
FR3086012A1 (en
Inventor
Stephane Crochet
Yann Olivier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pfeiffer Vacuum SAS
Original Assignee
Pfeiffer Vacuum SAS
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 Pfeiffer Vacuum SAS filed Critical Pfeiffer Vacuum SAS
Priority to FR1858443A priority Critical patent/FR3086012B1/en
Publication of FR3086012A1 publication Critical patent/FR3086012A1/en
Application granted granted Critical
Publication of FR3086012B1 publication Critical patent/FR3086012B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04C18/12—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
    • 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
    • F04C18/14—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 toothed rotary pistons
    • F04C18/16—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 toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • 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
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
    • 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
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/028—Means for improving or restricting lubricant flow
    • 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
    • F04C2220/00—Application
    • F04C2220/10—Vacuum
    • F04C2220/12—Dry running
    • 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
    • F04C2240/00—Components
    • F04C2240/80—Other components

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne une pompe à vide de type sèche comportant : - au moins un dispositif d'étanchéité (6) aux lubrifiants interposé entre un carter d'huile (2) et un étage de pompage (3e) au niveau de chaque passage d'arbre, - un disque brasseur (13) monté solidaire en rotation sur un arbre (4) et destiné à être partiellement immergé dans le lubrifiant (10) du carter d'huile (2). La pompe à vide comporte en outre au moins une paroi de guidage (14) fixe, agencée dans le carter d'huile (2), dont une extrémité inférieure est destinée à être immergée dans le lubrifiant (10) et une extrémité supérieure s'étendant vers le haut du carter d'huile (2) est destinée à émerger du lubrifiant (10), la paroi de guidage (14) étant configurée pour coopérer avec le disque brasseur (13) pour entrainer une remontée du lubrifiant (10) le long de la paroi de guidage (14).The invention relates to a dry-type vacuum pump comprising: - at least one sealing device (6) to lubricants interposed between an oil sump (2) and a pumping stage (3e) at each passage d 'shaft, - a stirrer disc (13) mounted integral in rotation on a shaft (4) and intended to be partially immersed in the lubricant (10) of the oil pan (2). The vacuum pump further comprises at least one fixed guide wall (14), arranged in the oil pan (2), a lower end of which is intended to be immersed in the lubricant (10) and an upper end s' extending upwardly of the oil pan (2) is intended to emerge from the lubricant (10), the guide wall (14) being configured to cooperate with the stirring disc (13) to cause a rise of the lubricant (10) on along the guide wall (14).

FR1858443A 2018-09-18 2018-09-18 DRY TYPE VACUUM PUMP Active FR3086012B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1858443A FR3086012B1 (en) 2018-09-18 2018-09-18 DRY TYPE VACUUM PUMP

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1858443A FR3086012B1 (en) 2018-09-18 2018-09-18 DRY TYPE VACUUM PUMP

Publications (2)

Publication Number Publication Date
FR3086012A1 FR3086012A1 (en) 2020-03-20
FR3086012B1 true FR3086012B1 (en) 2021-08-27

Family

ID=65443944

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1858443A Active FR3086012B1 (en) 2018-09-18 2018-09-18 DRY TYPE VACUUM PUMP

Country Status (1)

Country Link
FR (1) FR3086012B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3124236A1 (en) * 2021-07-05 2022-12-23 Pfeiffer Vacuum Vacuum pump

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5044895A (en) * 1984-12-22 1991-09-03 Leybold Aktiengesellschaft Oil supply device for a rotary machine
JP2690128B2 (en) * 1988-12-28 1997-12-10 株式会社日立製作所 Bearing lubrication device for oil-free screw vacuum pump
GB0709529D0 (en) * 2007-05-18 2007-06-27 Boc Group Plc Vacuum pump
DE202014007850U1 (en) * 2014-09-27 2016-01-05 Oerlikon Leybold Vacuum Gmbh vacuum pump
DE202014010177U1 (en) * 2014-12-23 2016-03-29 Oerlikon Leybold Vacuum Gmbh vacuum pump

Also Published As

Publication number Publication date
FR3086012A1 (en) 2020-03-20

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