GB661875A - Improvements in or relating to gear pump assemblies - Google Patents

Improvements in or relating to gear pump assemblies

Info

Publication number
GB661875A
GB661875A GB12222/48A GB1222248A GB661875A GB 661875 A GB661875 A GB 661875A GB 12222/48 A GB12222/48 A GB 12222/48A GB 1222248 A GB1222248 A GB 1222248A GB 661875 A GB661875 A GB 661875A
Authority
GB
United Kingdom
Prior art keywords
pump
delivery
valve
pipe
gear
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
GB12222/48A
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.)
Borg Warner Corp
Original Assignee
Borg Warner Corp
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 Borg Warner Corp filed Critical Borg Warner Corp
Publication of GB661875A publication Critical patent/GB661875A/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
    • F04C2/14—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 toothed rotary pistons
    • F04C2/18—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 toothed rotary pistons with similar tooth forms

Abstract

661,875. Gear pumps. BORG-WARNER CORPORATION. May 4, 1948 [May 7, 1947], No. 12222/48. Class 110(ii). [Also in Group XXIV] A plant comprising continuously-rotating primary and secondary gear pumps P<SP>1</SP>, P<SP>2</SP>, delivers liquid in parallel initially but upon the delivery reaching a predetermined figure, the pump P<SP>2</SP> ceases delivery, and recommences delivery if the pump P<SP>1</SP> fails. Shear portions S<SP>1</SP>, S<SP>2</SP> in the pump drives fail should the torque of the relevant pump exceed an allowable figure. End discs are pressed against the gears by liquid under delivery pressure and light springs, for sealing purposes. Fig. 1 shows both pumps taking liquid from a common suction 10a and delivering to a pipe 10b. When a certain delivery pressure is reached in pipe 45, a piston 12 is moved to the right lifting valve TV<SP>1</SP> and the delivery of pump P<SP>2</SP> passes along a pipe 10c to the suction line and a valve CV<SP>2</SP> closes. If the pump P<SP>1</SP> fails, valves TV' and CV<SP>1</SP> close, valve CV<SP>2</SP> opens and the pump P<SP>2</SP> delivers to the pipe 10b. Means 41 may be manually operated to open a valve MV controlling a byepass between pipes 45 and 10c and, after compression of :a weak spring 40, to open the valve TV<SP>1</SP> against the pressure of a spring 38. Pump P<SP>2</SP> has meshing gears 17, 18 with journals 19, 20. Gear 18 is driven through splines 29, the driving shaft 28 having a shear neck S<SP>2</SP>. The shaft passes through the gear 31 which is driven by splines 34, 36 and journal 32 having a shear neck S<SP>1</SP>. For sealing purposes delivery fluid acts on a surface 21a and this, together with the force of a light spring 24, is greater than the end thrust inside the pumping chamber. A channel 21c places the inner end of bushing face 21b in communication with a zone of low pressure through a passage 22 and a ball valve 23. The casing 10 may .be of light metal alloy such as aluminium alloy Specification 661,948, is referred to.
GB12222/48A 1947-05-07 1948-05-04 Improvements in or relating to gear pump assemblies Expired GB661875A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US661875XA 1947-05-07 1947-05-07

Publications (1)

Publication Number Publication Date
GB661875A true GB661875A (en) 1951-11-28

Family

ID=22067825

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12222/48A Expired GB661875A (en) 1947-05-07 1948-05-04 Improvements in or relating to gear pump assemblies

Country Status (1)

Country Link
GB (1) GB661875A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293599B (en) * 1958-01-14 1969-04-24 Borg Warner Gear pump
DE3406349A1 (en) * 1983-06-03 1984-12-06 Robert Bosch Gmbh, 7000 Stuttgart DISPLACEMENT MACHINE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293599B (en) * 1958-01-14 1969-04-24 Borg Warner Gear pump
DE3406349A1 (en) * 1983-06-03 1984-12-06 Robert Bosch Gmbh, 7000 Stuttgart DISPLACEMENT MACHINE

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