GB1072378A - Improvements in or relating to hydraulically actuated flexible chamber pumps - Google Patents

Improvements in or relating to hydraulically actuated flexible chamber pumps

Info

Publication number
GB1072378A
GB1072378A GB18401/65A GB1840165A GB1072378A GB 1072378 A GB1072378 A GB 1072378A GB 18401/65 A GB18401/65 A GB 18401/65A GB 1840165 A GB1840165 A GB 1840165A GB 1072378 A GB1072378 A GB 1072378A
Authority
GB
United Kingdom
Prior art keywords
bellows
pumps
valve
pair
pressure
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
GB18401/65A
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.)
IMO Industries Inc
Delaval Turbine California Inc
Original Assignee
De Laval Turbine Inc
Delaval Turbine California Inc
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 De Laval Turbine Inc, Delaval Turbine California Inc filed Critical De Laval Turbine Inc
Publication of GB1072378A publication Critical patent/GB1072378A/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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/10—Pumps having fluid drive
    • F04B43/113—Pumps having fluid drive the actuating fluid being controlled by at least one valve
    • F04B43/1136—Pumps having fluid drive the actuating fluid being controlled by at least one valve with two or more pumping chambers in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/10—Pumps having fluid drive
    • F04B43/113—Pumps having fluid drive the actuating fluid being controlled by at least one valve

Abstract

1,072,378. Flexible chamber pumps. DE LAVAL TURBINE Inc. April 30, 1965 [Nov. 6, 1964], No. 18401/65. Heading F1A. In a diaphragm pump having a bellows 36 expanded by liquid under pressure supplied through port 18 and contracted by a piston 70, secured to the bellows by means of rod 44, liquid under pressure is fed to the bellows when it approaches the fully contracted condition. In the embodiment illustrated, a flange 98 on rod 44 lifts an annular valve member 96 to open passages 90 in communication with the liquid pressure source. In another embodiment, a distributing valve (148), Fig. 4 (not shown), controls the main and auxiliary supplies of liquid under pressure to a pair of bellows pumps. The valve (148) comprises a housing (150) and a motor reciprocated spool (158) and controls the supply of liquid under pressure from an inlet (152) to a pair of outlets (180, 182). When the bellows of the pumps approach their contracted and fully expanded positions the outlets (180 and 182) are connected to the inlet (152) via annular spool grooves (210, 212) and restricted spool passages (214, 215). A system for operating a pair of pumps to give a substantially constant output at a substantially constant pressure, Fig. 1 (not shown), comprises a screw type pump (2) driven by a variable speed motor which may be adjusted to vary the supply to a distributing valve (8). The valve (8) is connected to the pair of pumps (14, 16) and bellows contracting cylinders (74) are connected to one another in order that downward movement of one bellows contracting piston causes the other piston to contract the respective bellows. An accumulator (124) and a pump (P), operated by a motor M at a predetermined pressure in the line connecting the bellows contracting cylinders (74), are connected in the line to maintain the line pressure. The liquid to be fed to the bellows as they approach their fully contracted positions is supplied by the screw type pump (2) via a relief valve (138).
GB18401/65A 1964-11-06 1965-04-30 Improvements in or relating to hydraulically actuated flexible chamber pumps Expired GB1072378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US409368A US3280749A (en) 1964-11-06 1964-11-06 Pumps

Publications (1)

Publication Number Publication Date
GB1072378A true GB1072378A (en) 1967-06-14

Family

ID=23620172

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18401/65A Expired GB1072378A (en) 1964-11-06 1965-04-30 Improvements in or relating to hydraulically actuated flexible chamber pumps

Country Status (2)

Country Link
US (1) US3280749A (en)
GB (1) GB1072378A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1312251A (en) * 1969-06-13 1973-04-04 Nat Res Dev Blood pumps
US3773438A (en) * 1971-04-29 1973-11-20 Kelsey Hayes Co Well stimulation apparatus and method
US5616009A (en) * 1981-10-08 1997-04-01 Birdwell; J. C. Mud pump
US4611973A (en) * 1981-10-08 1986-09-16 P & B Industries Pumping system and method of operating the same
US4477232A (en) * 1983-01-10 1984-10-16 Mayer James R Hydraulically actuated reciprocating piston pump

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2274224A (en) * 1940-07-24 1942-02-24 Vickers Inc Pumping system
US2897762A (en) * 1956-12-20 1959-08-04 Dow Chemical Co Pressure intensifier

Also Published As

Publication number Publication date
US3280749A (en) 1966-10-25

Similar Documents

Publication Publication Date Title
GB1288351A (en)
GB1160619A (en) Adjustable, Metered, Directional Flow Control Arrangement
GB1112618A (en) Adjustable, metered, directional flow control arrangement
GB1401374A (en) Apparatus for damping the pressure increase of hydrostatic drives
GB1027973A (en) Plural output pump
GB1072378A (en) Improvements in or relating to hydraulically actuated flexible chamber pumps
GB1056655A (en) Torque control means for variable displacement hydraulic pumps
GB1427105A (en) Feeding fluid under pressure
GB1105709A (en) Improvements in pumps
GB759548A (en) Improvements in hydraulic servo systems
ES8506862A1 (en) Stroke control valve for a radial piston pump.
GB1390520A (en) Piston pump for hydraulic systems
GB1312949A (en) Hydraulic drive for agricultural machines and appliances
GB950586A (en) Improvements in or relating to pumps
GB1010687A (en) Improvements in pressure-responsive valves
GB811247A (en) Improvements in or relating to hydraulic servo-action systems
SU1650952A2 (en) Variable-displacement pump control system
GB1445388A (en) Plunger or piston pump having plungers or pistons which are opposed-acting sampling arrangements
GB1119959A (en) Improvements in axial plunger oil pumps
GB1028854A (en) Improvements in or relating to hydraulically actuated diaphragm pumps
SU1359475A1 (en) Axial-piston controllable pump
SE303933B (en)
GB1140586A (en) Hydraulic reciprocating pumps
GB845867A (en) Improvements in or relating to hydraulic operating systems
GB1301572A (en)