US3545338A - Hydraulic rotary barrel pumps or motors - Google Patents

Hydraulic rotary barrel pumps or motors Download PDF

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Publication number
US3545338A
US3545338A US598410A US3545338DA US3545338A US 3545338 A US3545338 A US 3545338A US 598410 A US598410 A US 598410A US 3545338D A US3545338D A US 3545338DA US 3545338 A US3545338 A US 3545338A
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United States
Prior art keywords
barrel
bearing
pump
sleeve
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 - Lifetime
Application number
US598410A
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English (en)
Inventor
Rene Lucien
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.)
Messier SA
Original Assignee
Messier SA
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Filing date
Publication date
Application filed by Messier SA filed Critical Messier SA
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Publication of US3545338A publication Critical patent/US3545338A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/10—Control of working-fluid admission or discharge peculiar thereto
    • F01B3/103—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block
    • F01B3/106—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block by changing the inclination of the swash plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/0032—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/0032—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F01B3/0044—Component parts, details, e.g. valves, sealings, lubrication
    • F01B3/0052—Cylinder barrel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/0032—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F01B3/0044—Component parts, details, e.g. valves, sealings, lubrication
    • F01B3/0064—Machine housing
    • F01B3/0067—Machine housing cylinder barrel bearing means

Definitions

  • ABSTRACT A hydraulic pump or motor of the so-called rotating and floating barrel type wherein a bearing is placed between a fixed support and the barrel, the bearing being of small diameter and disposed at the point of application on the geometric axis of the barrel of the resultant of the shearing forces applied to the barrel so as to absorb said shearing forces and permit the barrel to make slight angular movements with 1,886,492 ll/1932 Mattson 123/43 respectto the geometric axis.
  • Barrel pumps of a known type comprise a cylindrical frame
  • the present invention relates to hydraulic; rotary barrel 1 closed at its extremity by a bottom 2., in which are formed pumps or motors with distribution valve-gear of the so-called fluid admission and delivery orifices (not shown).
  • a barrel 3 slide-face type. In the description which follows below. driven by a shaft 4 moves in the interior of the frame, 1,
  • Th reciprocating motion f th pistons i cylinders is effect d th ugh t Ports in a Plate slide-face effected in known manner by a plate 6 inclined to the axis of perpendicular t the axis ofthe g inst which isapplied the barrel, against which shoes 7, coupled to the universal a corresponding plane surface of the said barrel.
  • the cylinders h d j im s of h pistons are i bbi b a P this Plane sutface hhd communicate shceesstvely i
  • the force E due to the pressurewithstood by thepistons can proposedto mount the barrel on a bearing arranged at the ex- With one e other of the said Potts th the Shdtt'tace during be resolved into a force F perpendicular to the plate 6 and a course h 9 e batteti shearing force T perpendicular to the axis of the pump.
  • fectty applied agaihst the h h' 2 for example a needle bearing, or it may be in the form of a In order to comply with these conditions, it has already been jbuma] bearing, this latter Solution havingcettain advantages terior of the barrel level with the resultant of the shearing 3 fol, some types ofpumps especlany pumps ofsmau output and of very. small size;
  • the bearing may also be in the form of a ⁇ 2221;3 5:212523232 3352 belhg f' by fluid bearing Ol'lt may be a bearing of any other type.
  • FIG. 2 which is illustrated in FIG. 2. It comprises a driving sleeve 11, 40 t of which one long portion 11a is directly actuated by the shaft ;4 with which it cooperates, for example. through the inter-
  • the internal seating 9a of the bearing is slightly domed so aslmediary of a system of splines','and of "which one shorter por-
  • Thepresent invention has fonts ob ect to prov de a hydraumm coupled to that, p i g y a F web p he barrel pump which is mounted floating and which does not present the disadvantages outlined above, and in which abeard'rectly drives the bane] example by means
  • System ing of small diameter is arranged in the interior of the pump lofsphhesbarrel so as to resist the shearing forces due to the pressure, at h method dnvmg emplfyed lhcomblhahoh the a the point of application of their resultant, and to give
  • FIG. 2 is a detail section on a larger scale, illustrating the bearing, sin the tangential speeds e Q the other 1 driving system of the barrel of this pump and the floating hand, the small dimensions of the internal bearing obviously mounting of this barrel; ensure a better efficiency of the pump.
  • FIG. 3 is an axial cross section of a constant output pump in The invention having been described in respect of its princiaccordance with the invention; and ple, it will now be described by way of example and without FIG. 4 is an axial half-section of an alternative form of the limitation, in its application to a constant output pump illuspump according to the invention. L trated in FIG. 3, and to FIG. 4 showing an alternative form ap- Referring first to FIGS. I and 2i i plicable to any type of pump in accordance with the invention.
  • the constant output pump illustrated in FIG. 3 differs very little from that which is shown in FIG. 1.
  • the parts already referred to have been given the same reference numbers and will not be described in detail.
  • FIG. 3 the cylinders 14 provided in the barrel 3 have been shown.
  • the barrel is applied in known manner against the slide-face 2 by a spring 16 which is interposed between a ring 17 fixed on the shaft 4 and the web 11c of the sleeve 11.
  • the operation of a pump of this type is well known and will not therefore be described.
  • the pump shown in FIG. 3 comprises a barrel made of one piece and therefore of one material only.
  • the different parts of the barrel are not however subjected to the same stresses and there is no material which can be utilized indifferently for all these parts. It is in fact preferable that the extremity of the barrelapplied against the slide-face should be of a material having a low hardness, whereas the seating of the bearing and also, where applicable, the part subjected to the driving torque of the sleeve 11, must be as hard as possible.
  • FIG. 4 shows an alternative form of the pump, in which the barrel 3 is composed of two parts, one 311 being supported against the slide-face 2 and of a relatively soft material, while the other 3b, cooperates with the sleeve 11 and the bearing 10, and is of a relatively hard material.
  • a barrel of this kind is simple since, with a bearing mounted outside the barrel for taking up the shearing forces, it would be very difficult, if not impossible, to utilize a composite barrel comprising only two parts of different kinds.
  • a layer of antifriction material can of course be applied on the internal face of the portion 3b.
  • the pistons are parallel to the axis of the barrel. They could of course be equally well inclined to that axis.
  • the hollow support which serves as aninternal seating for the bearing which absorbs the shearing forces could equally well be a solid support, the outlet of the driving shaft being then effected through the bottom of the The bearing which absorbs the shearing forces may equally well be supported on a ring fittedover the support.
  • the support may also be anchored to the bottom, the outlet of the driving shaft then being effected either through the bottom or through the opposite extremity.
  • a hydraulic pump or motor of the so-called rotating and floating barrel type comprising a cylindrical fixed casing provided with a bottom having a slide-face with first and second orifices therein; a barrel supported in said casing for rotation about an axis, said barrel having cylinders and slidable pistons in said cylinders; means for placing said cylinders into communication alternately with said first and second orifices in said slide-face; means for reciprocally moving said pistons in said cylinders and producing forces on said pistons having components acting as shear forces applied to said barrel; a shaft mounted for rotation with respect to said casing about an axis substantially coincident with the axis of rotation of said barrel; a sleeve concentric with said shaft, said sleeve being traversed by said shaft and disposed in the interior of said barrel; means for coupling a relatively long portion of a said sleeve to said shaft and means for coupling a relatively short portion of said sleeve to said barrel; a support rigidly
  • a hydraulic pump or motor as claimed in claim 1 wherein said barrel is a composite barrel comprising two parts rigidly fixed to each other, one of said parts being constituted by a relatively soft material and being supported against said slideface, while the other part is constituted by a relatively hard material and cooperates with said sleeve and said bearing.
  • a hydraulic pump or motor as claimed in claim 2 wherein said barrel is a composite barrel comprising two parts rigidly fixed to each other, one of said parts being constituted by a relatively soft material and being supported against said slideface, while the other part is constituted by a relatively hard material and cooperates with said sleeve and said bearing.
  • a hydraulic pump or motor as claimed in claim 1 in which said shaft passes through said support.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Hydraulic Motors (AREA)
  • Details Of Reciprocating Pumps (AREA)
US598410A 1965-12-03 1966-12-01 Hydraulic rotary barrel pumps or motors Expired - Lifetime US3545338A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR40932A FR1469527A (fr) 1965-12-03 1965-12-03 Pompe ou moteur hydraulique à barillet tournant

Publications (1)

Publication Number Publication Date
US3545338A true US3545338A (en) 1970-12-08

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ID=8594380

Family Applications (1)

Application Number Title Priority Date Filing Date
US598410A Expired - Lifetime US3545338A (en) 1965-12-03 1966-12-01 Hydraulic rotary barrel pumps or motors

Country Status (4)

Country Link
US (1) US3545338A (cs)
DE (1) DE1653551C3 (cs)
FR (1) FR1469527A (cs)
GB (1) GB1169909A (cs)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682046A (en) * 1969-04-30 1972-08-08 Alfa Romeo Spa Hydraulic pump having non-radial cylinders contained in a rotor
US3690789A (en) * 1970-05-01 1972-09-12 Dowty Technical Dev Ltd Hydraulic apparatus
US3969042A (en) * 1973-11-29 1976-07-13 Leybold-Heraeus Gmbh & Co. Kg Turbomolecular vacuum pump having a gas bearing-supported rotor
US4033237A (en) * 1973-11-02 1977-07-05 Sulzer Brothers Limited Hydrostatic piston machine having small clearances between bearing surfaces
EP0162238A1 (de) * 1984-04-06 1985-11-27 Hydromatik GmbH Axialkolbenmaschine, insbesondere -pumpe der Schrägscheiben- bauart

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503273B1 (fr) * 1981-04-02 1986-02-21 Messier Hispano Sa Pompe hydraulique
DE3423467C2 (de) * 1984-06-26 1986-04-24 Ingo 7900 Ulm Valentin Hydraulische Schiefscheiben-Axialkolbenmaschine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682046A (en) * 1969-04-30 1972-08-08 Alfa Romeo Spa Hydraulic pump having non-radial cylinders contained in a rotor
US3690789A (en) * 1970-05-01 1972-09-12 Dowty Technical Dev Ltd Hydraulic apparatus
US4033237A (en) * 1973-11-02 1977-07-05 Sulzer Brothers Limited Hydrostatic piston machine having small clearances between bearing surfaces
US3969042A (en) * 1973-11-29 1976-07-13 Leybold-Heraeus Gmbh & Co. Kg Turbomolecular vacuum pump having a gas bearing-supported rotor
EP0162238A1 (de) * 1984-04-06 1985-11-27 Hydromatik GmbH Axialkolbenmaschine, insbesondere -pumpe der Schrägscheiben- bauart

Also Published As

Publication number Publication date
FR1469527A (fr) 1967-02-17
DE1653551B2 (cs) 1975-04-03
GB1169909A (en) 1969-11-05
DE1653551A1 (de) 1971-04-15
DE1653551C3 (de) 1976-01-02

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