GB918893A - Improvements in or relating to lobed rotary pumps - Google Patents

Improvements in or relating to lobed rotary pumps

Info

Publication number
GB918893A
GB918893A GB2112/61A GB211261A GB918893A GB 918893 A GB918893 A GB 918893A GB 2112/61 A GB2112/61 A GB 2112/61A GB 211261 A GB211261 A GB 211261A GB 918893 A GB918893 A GB 918893A
Authority
GB
United Kingdom
Prior art keywords
gear
rotor
shaft
plunger
tooth
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
GB2112/61A
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.)
Waterous Co
Original Assignee
Waterous Co
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 Waterous Co filed Critical Waterous Co
Publication of GB918893A publication Critical patent/GB918893A/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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/123—Rotary-piston machines or pumps 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 or approximately radially from the rotor body extending tooth-like elements, co-operating with recesses in the other rotor, e.g. one tooth
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49236—Fluid pump or compressor making
    • Y10T29/49245—Vane type or other rotary, e.g., fan

Abstract

918,893. Making Roots' blowers. WATEROUS CO. Jan. 18, 1961 [Jan. 20, 1960], No. 2112/61. Class 83 (2). [Also in Group XXVI] The rotors of a Roots' blower are driven by meshing gears, the gear having such a number of teeth and being mounted in such angular position that a tooth centre is aligned with the centre of a rotor lobe and a tooth space is located midway between adjacent lobes, or vice versa. A jig is used to assemble the gear and the rotor. The rotor 15 rests on two of its lobes on a flat surface with its shaft held at each end in guide blocks 96. A plunger 117 in the bed of the jig is raised as hand wheel 123 is turned and the end of shaft 122 engages the tapered notch 120 of the plunger, causing the tapered upper end of the plunger 116 to engage a tooth space of gear 77 mounted on the shaft of the rotor. Arm 130 is pivoted down from the dotted line position to engage the uppermost tooth of the gear. The pivot end of arm 130 is connected to dial gauge 135 so that the position of the gear may be checked. The rotor is held down by a clamping bar (Fig. 6, not shown), holes are drilled through the gear and rotor shaft and taper pins are fitted.
GB2112/61A 1960-01-20 1961-01-18 Improvements in or relating to lobed rotary pumps Expired GB918893A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3551A US3106166A (en) 1960-01-20 1960-01-20 Pretimed three-lobed rotary pump

Publications (1)

Publication Number Publication Date
GB918893A true GB918893A (en) 1963-02-20

Family

ID=21706395

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2112/61A Expired GB918893A (en) 1960-01-20 1961-01-18 Improvements in or relating to lobed rotary pumps

Country Status (2)

Country Link
US (1) US3106166A (en)
GB (1) GB918893A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3196800A (en) * 1962-12-13 1965-07-27 Parker Hannifin Corp Gear pump
US3275225A (en) * 1964-04-06 1966-09-27 Midland Ross Corp Fluid compressor
US3373689A (en) * 1966-06-08 1968-03-19 Dover Corp Positive displacement pump
US4797078A (en) * 1986-06-11 1989-01-10 Wankel Gmbh Bearing arrangement of an external-axial rotary piston blower
DE102007027318A1 (en) * 2007-06-14 2008-12-18 Obrist Engineering Gmbh Rotary piston engine

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US30157A (en) * 1860-09-25 -roots
US345969A (en) * 1886-07-20 Air-compressor
US515212A (en) * 1894-02-20 Rotary blower
US567089A (en) * 1896-09-01 Jesse b
US659619A (en) * 1900-07-17 1900-10-09 Wilbraham Baker Blower Company Rotary blower.
US924024A (en) * 1908-08-20 1909-06-08 Connersville Blower Co Vacuum-pump.
US1407496A (en) * 1921-05-02 1922-02-21 Waterous Fire Engine Company Rotary piston pump
US1645967A (en) * 1924-08-29 1927-10-18 Thomas S Patterson Rotary pump
US1854260A (en) * 1929-02-13 1932-04-19 Hofmann Josef Packing device
US1996169A (en) * 1932-11-04 1935-04-02 Joseph E Padgett Apparatus for use in assembling gearing in housings
US2247454A (en) * 1938-09-26 1941-07-01 Bump Pump Company Pump seal
US2281157A (en) * 1940-10-23 1942-04-28 Pump Engineering Service Corp Oil pump seal assembly
US2377965A (en) * 1942-12-11 1945-06-12 Gen Motors Corp Positioning fixture
US2781586A (en) * 1955-01-25 1957-02-19 Landis Machine Co Method and apparatus for synchronizing threading rolls

Also Published As

Publication number Publication date
US3106166A (en) 1963-10-08

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