GB903814A - Improvements in or relating to gear pumps and motors - Google Patents

Improvements in or relating to gear pumps and motors

Info

Publication number
GB903814A
GB903814A GB2618959A GB2618959A GB903814A GB 903814 A GB903814 A GB 903814A GB 2618959 A GB2618959 A GB 2618959A GB 2618959 A GB2618959 A GB 2618959A GB 903814 A GB903814 A GB 903814A
Authority
GB
United Kingdom
Prior art keywords
gear
gears
casing
port
shaft
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
GB2618959A
Inventor
Jack Eldon Crawford Stringer
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.)
Vinters Armstrongs Ltd
Original Assignee
Vinters Armstrongs Ltd
Vickers Armstrongs 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 Vinters Armstrongs Ltd, Vickers Armstrongs Ltd filed Critical Vinters Armstrongs Ltd
Priority to GB2618959A priority Critical patent/GB903814A/en
Publication of GB903814A publication Critical patent/GB903814A/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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • 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

Abstract

903,814. Gear pumps and motors. VICKERSARMSTRONG (ENGINEERS) Ltd. Sept. 15, 1960 [July 30, 1959], No. 26189/59. Class 110 (2). In a gear pump or motor comprising a casing housing three gears or any even number of gears greater than three disposed in a closed chain, the middle gear of three gears or each alternate gear in the chain of gears is rotatable about a centre adjustable with respect to fixed centres about which the remaining gears rotate by control means to move the middle gear or each alternate gear into narrower mesh with one of its adjacent gears and into wider mesh with the other of its adjacent gears so as to vary delivery in the case of a pump or speed in the case of a motor. As shown in Figs. 1 and 2, a casing 4 having a supply port 20 and a delivery (or outlet) port 21 and closed by end plates 2, 3 houses intermeshing gears 6, 7, 8. The gear 7 is mounted on needle rollers 15 on the central eccentric portion 16 of a shaft 17 rotatable in bearings 18, 19. A control lever (not shown) may be fitted on the squared projecting end of the shaft 17 to adjust the eccentricity and the amount of intermeshing between the gear 7 and its adjacent gears 6 and 8. In another embodiment, four gears 24... 27, Fig. 3, are disposed in a closed chain. The space 46 enclosed by the gears communicates through a port 45, Fig. 4, and a pipe 44 with a liquid supply source and the space 48 surrounding the gears with a delivery (or outlet) port. The gears 25, 27 are mounted on a common control plate 29 having a shaft 34 extending outside of the casing fitted with a lever 35 movable over a scale 37, Fig. 6. Adjustment of bolts 41 adjusts the centres of gears 25, 27 so, e.g., gear 25 is moved closer to gear 24 and away from gear 26 and gear 27 closer to gear 26 and away from gear 24. The gear 26 is eccentrically mounted on a member having a shaft extending through and rotatable from outside the casing so that the gear 26 can be adjusted towards the gear 24 to allow for wear of the gear teeth. Screws co-operate with arcuate slots to lock the member in its adjusted position. The adjustable gears may be ad. justed to give zero flow or reverse flow.
GB2618959A 1959-07-30 1959-07-30 Improvements in or relating to gear pumps and motors Expired GB903814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2618959A GB903814A (en) 1959-07-30 1959-07-30 Improvements in or relating to gear pumps and motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2618959A GB903814A (en) 1959-07-30 1959-07-30 Improvements in or relating to gear pumps and motors

Publications (1)

Publication Number Publication Date
GB903814A true GB903814A (en) 1962-08-22

Family

ID=10239728

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2618959A Expired GB903814A (en) 1959-07-30 1959-07-30 Improvements in or relating to gear pumps and motors

Country Status (1)

Country Link
GB (1) GB903814A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011076172A3 (en) * 2009-12-21 2012-08-02 Schaeffler Technologies AG & Co. KG Hydraulic control
CN102878075A (en) * 2012-10-04 2013-01-16 张意立 Novel gear pump
CN102878072A (en) * 2012-10-04 2013-01-16 张意立 Pressure holding gear pump

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011076172A3 (en) * 2009-12-21 2012-08-02 Schaeffler Technologies AG & Co. KG Hydraulic control
CN102713296A (en) * 2009-12-21 2012-10-03 舍弗勒技术股份两合公司 Hydraulic control device
CN102713296B (en) * 2009-12-21 2015-11-25 舍弗勒技术股份两合公司 Hydraulic-pressure control apparatus
CN102878075A (en) * 2012-10-04 2013-01-16 张意立 Novel gear pump
CN102878072A (en) * 2012-10-04 2013-01-16 张意立 Pressure holding gear pump

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