GB1032862A - Improvements relating to rotary fluid pumps of the n and n+1 lobe type - Google Patents

Improvements relating to rotary fluid pumps of the n and n+1 lobe type

Info

Publication number
GB1032862A
GB1032862A GB237762A GB237762A GB1032862A GB 1032862 A GB1032862 A GB 1032862A GB 237762 A GB237762 A GB 237762A GB 237762 A GB237762 A GB 237762A GB 1032862 A GB1032862 A GB 1032862A
Authority
GB
United Kingdom
Prior art keywords
cutter
cranks
lobes
work
rotary fluid
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
GB237762A
Inventor
Henry Edward Merritt
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.)
Merritt & Co Engineering
Original Assignee
Merritt & Co Engineering
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 Merritt & Co Engineering filed Critical Merritt & Co Engineering
Priority to GB237762A priority Critical patent/GB1032862A/en
Publication of GB1032862A publication Critical patent/GB1032862A/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
    • F04C2/102—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 the two members rotating simultaneously around their respective axes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

1,032,862. Copy-planing. MERRITT & CO. (ENGINEERING) Ltd. Jan. 15, 1963 [Jan. 23, 1962], No. 2377/62. Heading B3L. [Also in Division F1] In a method of forming lobes on an outer rotor for a rotary fluid-pump of the n and n + 1 lobe type, an annular blank 2 (Fig. 5, not shown) is rotated on a work-table about an axis Q whilst a cutter 10 simultaneously reciprocates axially and gyrates, the gyratory motion being effected by cranks journalled at fixed points 14, 15 and coupled to a carrier 11 for the cutter at points 12, 13. The work-table and the cranks are coupled to one another by gearing to rotate in similar directions with a speed ratio of 1: n + 1. Lobes on an inner rotor 1 (Fig. 6, not shown) are formed in a similar manner, the work-table and cranks carrying a cutter 16 being connected to one another to rotate in opposite directions with a speed ratio of 1: n. The root curves of the lobes on the outer rotor and the crest curves on the inner rotor may be of elliptic profile (Fig. 1, not shown), the cutter 10 being of part-circular profile and inclined relative to the axis Q accordingly (Figs. 2, 3 and 4, not shown). The cutter 16 may be formed by a like method, and after it has been hardened it may be ground by an abrasive where fitted in place of the cutter 10.
GB237762A 1962-01-23 1962-01-23 Improvements relating to rotary fluid pumps of the n and n+1 lobe type Expired GB1032862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB237762A GB1032862A (en) 1962-01-23 1962-01-23 Improvements relating to rotary fluid pumps of the n and n+1 lobe type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB237762A GB1032862A (en) 1962-01-23 1962-01-23 Improvements relating to rotary fluid pumps of the n and n+1 lobe type

Publications (1)

Publication Number Publication Date
GB1032862A true GB1032862A (en) 1966-06-15

Family

ID=9738478

Family Applications (1)

Application Number Title Priority Date Filing Date
GB237762A Expired GB1032862A (en) 1962-01-23 1962-01-23 Improvements relating to rotary fluid pumps of the n and n+1 lobe type

Country Status (1)

Country Link
GB (1) GB1032862A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2318307A1 (en) * 1975-07-18 1977-02-11 Barrios Fernandez Rotary motor with star shaped eccentric rotor - has fixed casing with one lobe more than on rotor
FR2901325A1 (en) * 2006-04-07 2007-11-23 Jatco Ltd INNER GEAR PUMP

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2318307A1 (en) * 1975-07-18 1977-02-11 Barrios Fernandez Rotary motor with star shaped eccentric rotor - has fixed casing with one lobe more than on rotor
FR2901325A1 (en) * 2006-04-07 2007-11-23 Jatco Ltd INNER GEAR PUMP

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