GB699438A - Improvements in and relating to helical gear pumps and to stators thereof - Google Patents

Improvements in and relating to helical gear pumps and to stators thereof

Info

Publication number
GB699438A
GB699438A GB659952A GB659952A GB699438A GB 699438 A GB699438 A GB 699438A GB 659952 A GB659952 A GB 659952A GB 659952 A GB659952 A GB 659952A GB 699438 A GB699438 A GB 699438A
Authority
GB
United Kingdom
Prior art keywords
pump
casing
helical gear
stator
inlet
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.)
Expired
Application number
GB659952A
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.)
NOV Process and Flow Technologies UK Ltd
Original Assignee
Mono Pumps Ltd
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 Mono Pumps Ltd filed Critical Mono Pumps Ltd
Priority to GB659952A priority Critical patent/GB699438A/en
Publication of GB699438A publication Critical patent/GB699438A/en
Expired legal-status Critical Current

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
    • 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
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
    • F04C2/1076—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type where one member orbits or wobbles relative to the other member which rotates around a fixed axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

699,438. Rotary pumps. MONO PUMPS, Ltd. (Robbins & Myers, Inc.). March 13, 1952, No. 6599/52. Class 110(ii) A helical gear pump of the Moineau type has a stator 28, with an outer cylindrical casing 29, of resilient material, with a connecting piece 30 which allows gyratory movement of the stator relative to the casing 29. The pump rotor 27 is driven by an electric motor 10 with a chamber 16 between them through which cooling air circulates using holes 31, 12a, and from which any liquid condensing on a pump wall 17, drains. A slinger ring 32 prevents moisture from entering a bearing 14. In a modified arrangement, Fig. 5 (not shown), the pump and motor casings are separated, the shaft ends being in bearings supported by a pedestal. The pump has inlet and outlet ports 26, 21, the outside of casing 29 being subjected to inlet pressure, and the inside to delivery pressure. The casing 29 tends to swell outwards against the inside of the casing wall 11, but this movement is restricted to prevent excessive deformation. The length of the piece 30 varies. The ports 26, 21 are preferably at the top of the pump, which can then be always submerged in liquid. The outlet may communicate with a pressure switch 35, Fig. I (not shown). Specifications 400,508, 699,435 and U.S.A. Specification 2,512,764 are referred, to.
GB659952A 1952-03-13 1952-03-13 Improvements in and relating to helical gear pumps and to stators thereof Expired GB699438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB659952A GB699438A (en) 1952-03-13 1952-03-13 Improvements in and relating to helical gear pumps and to stators thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB659952A GB699438A (en) 1952-03-13 1952-03-13 Improvements in and relating to helical gear pumps and to stators thereof

Publications (1)

Publication Number Publication Date
GB699438A true GB699438A (en) 1953-11-04

Family

ID=9817419

Family Applications (1)

Application Number Title Priority Date Filing Date
GB659952A Expired GB699438A (en) 1952-03-13 1952-03-13 Improvements in and relating to helical gear pumps and to stators thereof

Country Status (1)

Country Link
GB (1) GB699438A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120729A (en) * 1982-05-21 1983-12-07 Mono Pumps Ltd Helical gear pump
EP1908956A1 (en) * 2006-10-06 2008-04-09 Moyno, Inc. Progressing cavity pump with wobble stator and magnetic drive
US9334691B2 (en) 2010-11-19 2016-05-10 Smith International, Inc. Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps
US9482223B2 (en) 2010-11-19 2016-11-01 Smith International, Inc. Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120729A (en) * 1982-05-21 1983-12-07 Mono Pumps Ltd Helical gear pump
EP1908956A1 (en) * 2006-10-06 2008-04-09 Moyno, Inc. Progressing cavity pump with wobble stator and magnetic drive
US7553139B2 (en) 2006-10-06 2009-06-30 Moyno, Inc. Progressing cavity pump with wobble stator and magnetic drive
US9334691B2 (en) 2010-11-19 2016-05-10 Smith International, Inc. Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps
US9482223B2 (en) 2010-11-19 2016-11-01 Smith International, Inc. Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps
US10612542B2 (en) 2010-11-19 2020-04-07 Smith International, Inc. Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps

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