GB646371A - Improvements in hydraulic pumps - Google Patents

Improvements in hydraulic pumps

Info

Publication number
GB646371A
GB646371A GB2778246A GB2778246A GB646371A GB 646371 A GB646371 A GB 646371A GB 2778246 A GB2778246 A GB 2778246A GB 2778246 A GB2778246 A GB 2778246A GB 646371 A GB646371 A GB 646371A
Authority
GB
United Kingdom
Prior art keywords
swash
plate
conic
pistons
crank
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
GB2778246A
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.)
BEACHAM HYDRAULIC Co Ltd
Original Assignee
BEACHAM HYDRAULIC Co 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 BEACHAM HYDRAULIC Co Ltd filed Critical BEACHAM HYDRAULIC Co Ltd
Priority to GB2778246A priority Critical patent/GB646371A/en
Publication of GB646371A publication Critical patent/GB646371A/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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/145—Housings
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
    • F04B1/124—Pistons
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/146—Swash plates; Actuating elements
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/146—Swash plates; Actuating elements
    • F04B1/148—Bearings therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H23/00—Wobble-plate gearings; Oblique-crank gearings
    • F16H23/04—Wobble-plate gearings; Oblique-crank gearings with non-rotary wobble-members

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)

Abstract

646,371. Reciprocating pumps for liquids. BEACHAM HYDRAULIC CO., Ltd., and BEACHAM, T. E. Sept. 17, 1946, Nos. 27-782/46 and 3832/47. [Class 102(i)] [Also in Group XXVI] In a hydraulic pump comprising a swash-plate mounted on a conic crank so as to be freely rotatable thereon and adapted to reciprocate piston units having their axes parallel to the axis of rotation of the conic crank and biassed axially towards the face of the swash-plate, the friction preventing the swash-plate from rotating, the plane of the face of the swashplate passes through the point of intersection of the axis of the conic crank and the axis of rotation thereof, the pistons being free to turn in their cylinders. A conic crank 2 solid with a rotary drive shaft 1 supports, through a ball-bearing 33 a swashplate 3 the face of which is engaged by the spherical or coned ends of pistons 4a reciprocating in cylinder 8a. The cylinders comprise bores in a cylinder block 9 into the enlarged ends of which sleeves are screwed, the sleeves also serving to guide piston return springs 5. To the ends of the block 9 hoods 23, 24 are bolted to house the mechanism. Inlet valves 14a at the cylinder ends remote from the swash-plate are housed in counterbores in the block 9 and their seatings secured therein by screwed sleeves 42. The valve seatings are coaxial with eccentric enlargements of the cylinder ends, the enlargements co-operating with radially disposed outlet valves. As shown, the cylinders are of two diameters but all may have the same diameter; the end of the drive shaft is supported in a bearing 32 in the cylinder block but this may be omitted if an additional bearing is provided on the drive shaft 1. The construction results in a substantially pure rolling movement between the swash-plate 3 and the ends 6 of the pistons, there being also a slight oscillation at the region of contact therebetween, which is absorbed by the natural resiliency of the materials used. Weights 7a, 7b rigid with the drive shaft balance the centrifugal forces and the couple generated by the swash-plate and the reciprocating movement of the pistons (see Group XXVI).
GB2778246A 1946-09-17 1946-09-17 Improvements in hydraulic pumps Expired GB646371A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2778246A GB646371A (en) 1946-09-17 1946-09-17 Improvements in hydraulic pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2778246A GB646371A (en) 1946-09-17 1946-09-17 Improvements in hydraulic pumps

Publications (1)

Publication Number Publication Date
GB646371A true GB646371A (en) 1950-11-22

Family

ID=10265214

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2778246A Expired GB646371A (en) 1946-09-17 1946-09-17 Improvements in hydraulic pumps

Country Status (1)

Country Link
GB (1) GB646371A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2925047A (en) * 1953-03-23 1960-02-16 Gen Metals Corp Rotary hydraulic pump
US2945444A (en) * 1957-09-23 1960-07-19 Dynex Inc Hydraulic pump
US3496873A (en) * 1967-01-05 1970-02-24 Teves Gmbh Alfred Axial-piston pump with control rods
EP0062990B1 (en) * 1981-04-06 1985-05-22 PRODUCT RESEARCH & DEVELOPMENT Drive mechanisms for diaphragm pumps and the like
US5562182A (en) * 1993-11-24 1996-10-08 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Oil diverting unit for a refrigerant compressor
EP1544464A2 (en) * 2003-12-18 2005-06-22 Annovi Reverberi S.p.A. Improved hydraulic pump
US7658597B2 (en) 2004-08-02 2010-02-09 Annovi Reverberi S.P.A. Pump body with plunger pistons
EP2634425A3 (en) * 2012-02-28 2017-03-01 Nabtesco Corporation Hydraulic pump
WO2023099991A1 (en) * 2021-12-01 2023-06-08 Mixtron S.R.L. Membrane pump

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2925047A (en) * 1953-03-23 1960-02-16 Gen Metals Corp Rotary hydraulic pump
US2945444A (en) * 1957-09-23 1960-07-19 Dynex Inc Hydraulic pump
US3496873A (en) * 1967-01-05 1970-02-24 Teves Gmbh Alfred Axial-piston pump with control rods
EP0062990B1 (en) * 1981-04-06 1985-05-22 PRODUCT RESEARCH & DEVELOPMENT Drive mechanisms for diaphragm pumps and the like
US5562182A (en) * 1993-11-24 1996-10-08 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Oil diverting unit for a refrigerant compressor
EP1544464A2 (en) * 2003-12-18 2005-06-22 Annovi Reverberi S.p.A. Improved hydraulic pump
EP1544464A3 (en) * 2003-12-19 2006-02-08 Annovi Reverberi S.p.A. Improved hydraulic pump
US7611337B2 (en) 2003-12-19 2009-11-03 Annovi Reverberi S.P.A. Hydraulic pump
US7658597B2 (en) 2004-08-02 2010-02-09 Annovi Reverberi S.P.A. Pump body with plunger pistons
EP2634425A3 (en) * 2012-02-28 2017-03-01 Nabtesco Corporation Hydraulic pump
US9624914B2 (en) 2012-02-28 2017-04-18 Nabtesco Corporation Hydraulic pump
WO2023099991A1 (en) * 2021-12-01 2023-06-08 Mixtron S.R.L. Membrane pump

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