GB587849A - Improvements in and relating to rotary pumps, compressors and motors - Google Patents

Improvements in and relating to rotary pumps, compressors and motors

Info

Publication number
GB587849A
GB587849A GB177445A GB177445A GB587849A GB 587849 A GB587849 A GB 587849A GB 177445 A GB177445 A GB 177445A GB 177445 A GB177445 A GB 177445A GB 587849 A GB587849 A GB 587849A
Authority
GB
United Kingdom
Prior art keywords
sectors
roots
recesses
preferably
shown
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
GB177445A
Original Assignee
Arthur Clifford Howard
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 Arthur Clifford Howard filed Critical Arthur Clifford Howard
Priority to GB177445A priority Critical patent/GB587849A/en
Publication of GB587849A publication Critical patent/GB587849A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08Rotary-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
    • F04C18/12Rotary-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
    • F04C18/126Rotary-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 from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type

Abstract

587,849. Roots' blowers. HOWARD, A. C. Jan. 23, 1945, No. 1774. [Class 110 (ii)] In a pump, compressor or motor of the Roots' blower type, comprising two crescent-shaped rotors each consisting of two cylindrical sectors 25, 26 of different diameters united by recesses 31, the two sectors are detachably secured together and are so constructed that each rotor is approximately in dynamical balance. The parts 25 and 26 are held together and on the shaft 17 by bolts 27 engaging in tapped holes 29. A key 30 is fitted. The part 25 may be made of a lighter material than the part 26 and may be hollow, as shown, preferably with an internal web 32. The wearing surface of a sector may be protected by a layer of harderwearing material, which may be electrodeposited. Sealing strips may be recessed in the sides of the sectors. The recesses 31, which provide clearance for the tips of the coacting rotors, are preferably of concave cylindrical curvature and may be left unmachined. A relief port provided with a spring-loaded valve, not shown, communicates the outlet chamber 23 with the inlet chamber 21.
GB177445A 1945-01-23 1945-01-23 Improvements in and relating to rotary pumps, compressors and motors Expired GB587849A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB177445A GB587849A (en) 1945-01-23 1945-01-23 Improvements in and relating to rotary pumps, compressors and motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB177445A GB587849A (en) 1945-01-23 1945-01-23 Improvements in and relating to rotary pumps, compressors and motors

Publications (1)

Publication Number Publication Date
GB587849A true GB587849A (en) 1947-05-07

Family

ID=9727747

Family Applications (1)

Application Number Title Priority Date Filing Date
GB177445A Expired GB587849A (en) 1945-01-23 1945-01-23 Improvements in and relating to rotary pumps, compressors and motors

Country Status (1)

Country Link
GB (1) GB587849A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986000957A1 (en) * 1984-07-19 1986-02-13 John Harries Rotary positive displacement machine
EP1447565A2 (en) * 2003-02-05 2004-08-18 Eaton Corporation Rotary blower

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986000957A1 (en) * 1984-07-19 1986-02-13 John Harries Rotary positive displacement machine
US4702206A (en) * 1984-07-19 1987-10-27 John Harries Rotary positive displacement machine
EP1447565A2 (en) * 2003-02-05 2004-08-18 Eaton Corporation Rotary blower
EP1447565A3 (en) * 2003-02-05 2006-03-29 Eaton Corporation Rotary blower

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