ES8400180A1 - N/N +1 lobed rotary fluid pumps. - Google Patents

N/N +1 lobed rotary fluid pumps.

Info

Publication number
ES8400180A1
ES8400180A1 ES514979A ES514979A ES8400180A1 ES 8400180 A1 ES8400180 A1 ES 8400180A1 ES 514979 A ES514979 A ES 514979A ES 514979 A ES514979 A ES 514979A ES 8400180 A1 ES8400180 A1 ES 8400180A1
Authority
ES
Spain
Prior art keywords
annulus
clearances
rotary fluid
fluid pumps
positions
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
ES514979A
Other languages
Spanish (es)
Other versions
ES514979A0 (en
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.)
Concentric Pumps Ltd
Original Assignee
Concentric 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 Concentric Pumps Ltd filed Critical Concentric Pumps Ltd
Publication of ES514979A0 publication Critical patent/ES514979A0/en
Publication of ES8400180A1 publication Critical patent/ES8400180A1/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
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels

Abstract

In an N, N+1 lobe type pump, dirt clearances are provided at the bases of the interlobe roots 22 of the annulus 14 and the shaping and dimensioning of the inner rotor and annulus are such that elsewhere there is a normal running clearance at the zones of drive contact between the two rotors. To prevent the creation of excessive clearances in the positions of full mesh especially at position D, the inner rotor 10 and annulus 14 are conjugate (as defined) such that at positions B and D normal running clearances are maintained.
ES514979A 1981-08-15 1982-08-13 N/N +1 lobed rotary fluid pumps. Expired ES8400180A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08124995A GB2104153B (en) 1981-08-15 1981-08-15 Rotary positive-displacement fluid-pumps

Publications (2)

Publication Number Publication Date
ES514979A0 ES514979A0 (en) 1983-10-16
ES8400180A1 true ES8400180A1 (en) 1983-10-16

Family

ID=10523975

Family Applications (1)

Application Number Title Priority Date Filing Date
ES514979A Expired ES8400180A1 (en) 1981-08-15 1982-08-13 N/N +1 lobed rotary fluid pumps.

Country Status (3)

Country Link
EP (1) EP0072636A3 (en)
ES (1) ES8400180A1 (en)
GB (1) GB2104153B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0173778B1 (en) * 1984-09-05 1990-03-07 Hobourn Engineering Limited Improvements relating to pumps
CH667492A5 (en) * 1985-08-31 1988-10-14 Wankel Felix INNER AXIS ROTARY PISTON.
ES2022841B3 (en) * 1986-07-19 1991-12-16 Barmag Barmer Maschf INTERIOR GEAR WHEEL PUMP.
GB2394512A (en) * 2002-10-22 2004-04-28 Concentric Pumps Ltd Pump rotor set with increased fill limit

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126833A (en) * 1964-03-31 Figures
US1682563A (en) * 1921-11-05 1928-08-28 Myron F Hill Internal rotor
US1486836A (en) * 1923-04-28 1924-03-11 Hill Compressor & Pump Company Rotary-pump pressure control
US2031888A (en) * 1928-08-24 1936-02-25 Hill Engineering Company Inc Tooth curve for rotors and gears
GB958779A (en) * 1960-05-19 1964-05-27 Robert Wesley Brundage Improvements in gear type hydraulic pumps and motors
US3273502A (en) * 1964-02-24 1966-09-20 Stewart Warner Corp Pumping and metering device
DE1525066A1 (en) * 1965-01-15 1969-07-03 Otto Eckerle Process for the production of a rotor, in particular for internal rotor gear pumps
GB1233376A (en) * 1967-11-17 1971-05-26
US3536426A (en) * 1968-04-03 1970-10-27 Novelty Tool Co Inc Gear pump having eccentrically arranged internal and external gears
US3824047A (en) * 1973-03-23 1974-07-16 Dermott H Mc Floating rotary ring member of fluid displacement device
DD106219A1 (en) * 1973-06-20 1974-06-05
IT1118556B (en) * 1979-04-12 1986-03-03 Whitehead Moto Fides Spa Stabi PROCEDURE FOR THE REALIZATION OF A ROTARY MECHANICAL PUMP AND RELATED PUMP OBTAINED

Also Published As

Publication number Publication date
ES514979A0 (en) 1983-10-16
GB2104153A (en) 1983-03-02
GB2104153B (en) 1984-08-30
EP0072636A3 (en) 1983-03-09
EP0072636A2 (en) 1983-02-23

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20010505