US3885444A - Barrel mechanism for a piston pump - Google Patents

Barrel mechanism for a piston pump Download PDF

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Publication number
US3885444A
US3885444A US413895A US41389573A US3885444A US 3885444 A US3885444 A US 3885444A US 413895 A US413895 A US 413895A US 41389573 A US41389573 A US 41389573A US 3885444 A US3885444 A US 3885444A
Authority
US
United States
Prior art keywords
shaft
barrel
axis
casing
plate
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
US413895A
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English (en)
Inventor
Gerard Chanlon
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.)
Creusot Loire SA
Original Assignee
Creusot Loire SA
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 Creusot Loire SA filed Critical Creusot Loire SA
Application granted granted Critical
Publication of US3885444A publication Critical patent/US3885444A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18296—Cam and slide
    • Y10T74/18336—Wabbler type

Definitions

  • a barrel mechanism comprises, with a casing, a rotatable shaft mounted in two bearings supported respectively by two ends of the casing perpendicular to the axis of the shaft, and to which is fixed a plate oblique with respect to the axis, a barrel bearing on the 0blique plate, centred about an axis, intersecting the axis of the shaft, on an inclined cylindrical bearing on the shaft and perpendicular to the plate, and a means locking the barrel against rotation, wherein the two ends of the casing are connected by a tie-rod extending along the axis of the shaft in an axial bore in the shaft.
  • the object of the invention is a barrel mechanism applicable particularly to axial-piston pumps.
  • a known pump of this type comprises a pump body having a number of pistons distributed round an axis and each displaceable in a cylinder parallel with the axis, and a mechanism forming a rotor driven by a motor and having an oblique thrust-face actuating the pistons by rotation about the axis.
  • the oblique thrust-face is a simple circular plate located in a plane oblique with respect to the axis of rotation and upon which the pistons bear directly by means of rods provided with spherical bearing faces.
  • a barrel mechanism which comprises, inside a casing, a driving shaft rotated about its axis in two bearings supported respectively by two ends of the casing perpendicular to the axis and to which is fixed a plate extending obliquely with respect to the axis of the shaft, and a barrel bearing on the oblique plate and centered about a point on the axis of the shaft on an inclined cylindrical bearing on the shaft and perpendicular to the plate.
  • the barrel is prevented from rotating by some means locking it against rotation.
  • Each piston is connected to the barrel by a connecting-rod articulated to the piston and to the barrel at a point remote from the axis.
  • Barrel mechanisms on the other hand enable a much more rational arrangement since the motor; the rotor and the body of the pump can be in line.
  • the large forces to be withstood by the barrel and transmitted to the casing have hitherto prevented the production of high power pumps, particularly if it is desired to limit their bulk and their weight.
  • a barrel 3 mechanism comprising, inside a casing, a rotatable shaft mounted in two bearings supported respectively by two ends of the casing perpendicular to the axis of the shaft, and to which is fixed a plate oblique with respect to the axis, a barrel bearing on the oblique plate, centred about an axis intersecting the axis of the shaft, on an inclined cylindrical bearing on the shaft and perpendicular to the plate, and a means locking the barrel against rotation, wherein the two ends of the casing are connected by a tie-rod extending along the axis of the shaft in an axial bore in the shaft.
  • FIG. 2 is a longitudinal section of a second embodiment according to the invention.
  • the mechanism shown in FIG. 1 comprises a casing 1 comprising a cylindrical wall 10 to which are fixed two parallel ends 11 and 12. Inside the casing 1 is located a hollow shaft 2 rotatably mounted at one end, by a plain ring 21, on a tubular distance-piece 3 arranged on the axis 20 of the casing and bearing against the two ends 11 and 12 of the casing.
  • a tie-rod 4 extending within the tubular distancepiece 3 connects the two ends of the casing against which it bears by means of a head 42 and a nut 41 enabling the tie-rod 4 to be kept. under a certain tensional prestress taken up by the distance-piece 3.
  • the end 12 of the casing is attached to a pump body (not shown) comprising a plurality of axial pistons distributed round the axis of revolution 20. Each piston is connected to a slide 5 moving parallel with the axis in a cylinder 51 fixed to the end 12 of the casing.
  • the shaft 2 is driven by the motor (not shown) located adjacent the end 11, by means of a reducer comprising an input pinion 6 meshing with a wheel 24 fixed to the plate 22.
  • the inner face of the wheel 24 advantageously constitutes the second journal for the shaft 2, bearing by means of a plain ring 25 against a cylindrical bearing integral with the end 11.
  • the shaft 2 also bears a plate 26 inclined with respect to the axis of revolution and a cylindrical bearing 27 perpendicular to the said plate, the axis 270 of which is inclined to the axis of revolution of shaft 2.
  • a barrel 7 is centred on the cylindrical bearing 27 by means of a plain ring 71 and bears against the plate 26 by means of a plain thrust-face 72.
  • the barrel 7 is prevented from turning by any means, for example, by a connecting-rod (not shown) articulated to the casing and the lower portion 73 of the barrel.
  • the axis 270 of the cylindrical bearing 27 describes a cone about the axis of revolution 20 and the result is that the barrel 7, being locked in rotation oscillates about the point of intersection between the axes 20 and 270.
  • the tie-rod 4 has been previously prestressed to a tension greater than this thrust of 130 tons, the prestress being taken up at no load by the distance-piece 3.
  • the result is that the thrust exerted by the slide on the barrel is transmitted to both ends of the casing and taken up wholly by the tie-rod 4 without extension of the latter and consequently without deformation of the casing.
  • the casing, and in particular its sidewall 13, which withstands practically no force, can therefore be considerably lightened.
  • the employment of a hollow shaft enables the latter to bear against the distancepiece by means of an internal bearing and hence the length of the shaft to be substantially reduced. Another reduction in the length is obtained by the arrangement of the other bearing of the shaft on the inner face of the wheel 24 of the reducer.
  • plain rings and thrustfaces likewise enables a reduction in bulk and weight of the whole.
  • These rings will, for example, be of bronze or bimetal selected as a function of the forces to be withstood.
  • roller guide and thrust bearings as shown in the embodiments of FIG. 2, whilst keeping within the allowable limits of weight and bulk.
  • the barrel 7 is in fact centred by a roller bearing 710 and bears against the oblique plate 26 by means of a roller thrust-bearing 720. Having regard to the thickness of the thrust-bearing 720, it has been possible to bring the plate 26 to adjacent the plate 22 so that it is formed as one body with the plate 22, whilst leaving clearance for the end 73 of the barrel.
  • Such a mechanism can be adapted for use not only in a pump but in any means employing the displacement of axial pistons, such as a compressor or a piston engine, the mechanism then serving to transform the axial displacement of the pistons into rotation of the shaft.
  • a barrel mechanism comprising:
  • a prestressed tie-rod extending along the said axis of said shaft in said axial bore and connecting said casing ends to absorb axial thrust on said barrel, said oblique plate being integral with a thrust plate on that end of said casing remote from said barrel with respect to said oblique plate, said thrust plate being fixed to said shaft perpendicular to said axis of said shaft, said tie-rod extending in a tubular distance piece fixed to said two ends of said casing and extending through said axial bore in said shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
US413895A 1972-12-14 1973-11-08 Barrel mechanism for a piston pump Expired - Lifetime US3885444A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7244532A FR2211090A5 (enrdf_load_stackoverflow) 1972-12-14 1972-12-14

Publications (1)

Publication Number Publication Date
US3885444A true US3885444A (en) 1975-05-27

Family

ID=9108691

Family Applications (1)

Application Number Title Priority Date Filing Date
US413895A Expired - Lifetime US3885444A (en) 1972-12-14 1973-11-08 Barrel mechanism for a piston pump

Country Status (17)

Country Link
US (1) US3885444A (enrdf_load_stackoverflow)
JP (1) JPS5743743B2 (enrdf_load_stackoverflow)
AT (1) AT331640B (enrdf_load_stackoverflow)
BE (1) BE808576A (enrdf_load_stackoverflow)
CA (1) CA987171A (enrdf_load_stackoverflow)
CH (1) CH572158A5 (enrdf_load_stackoverflow)
DE (1) DE2355648C3 (enrdf_load_stackoverflow)
DK (1) DK137396B (enrdf_load_stackoverflow)
ES (1) ES420384A1 (enrdf_load_stackoverflow)
FR (1) FR2211090A5 (enrdf_load_stackoverflow)
GB (1) GB1421053A (enrdf_load_stackoverflow)
IT (1) IT996982B (enrdf_load_stackoverflow)
LU (1) LU68984A1 (enrdf_load_stackoverflow)
NL (1) NL174754C (enrdf_load_stackoverflow)
NO (1) NO140355C (enrdf_load_stackoverflow)
SE (1) SE392952B (enrdf_load_stackoverflow)
SU (1) SU470124A3 (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4584927A (en) * 1983-07-01 1986-04-29 Creusot Loire Swash plate mechanism, particularly for a pump drive
WO2004022971A1 (de) * 2002-08-16 2004-03-18 Alfred Kärcher Gmbh & Co. Kg Taumelscheibenpumpe insbesondere für hochdruckreinigungsgeräte
DE102004028044B3 (de) * 2004-06-09 2005-11-17 Ab Skf Lageranordnung
DE102007063541A1 (de) * 2007-12-21 2009-07-02 Alfred Kärcher Gmbh & Co. Kg Antriebsvorrichtung für Hochdruckreinigungsgerät
US20110011375A1 (en) * 2007-05-30 2011-01-20 High Density Powertrain, Inc. Super charged engine
US20110232476A1 (en) * 2008-09-08 2011-09-29 Michel Drevet Rotary machine with pistons and a barrel

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506857A1 (fr) * 1981-05-27 1982-12-03 Creusot Loire Mecanisme a barillet
FR2572774B1 (fr) * 1984-11-06 1989-05-19 Drevet Michel Pompe a pistons a barillet, notamment pour des fluides a haute pression
FR2588617B1 (fr) * 1985-10-14 1989-11-24 Drevet Michel Machine rotative a pistons et a barillet avec rotule de centrage fixe.
FR2619166B2 (fr) * 1985-10-14 1990-02-02 Drevet Michel Machine rotative a pistons et a barillet avec rotule de centrage fixe
ATE58416T1 (de) * 1987-08-06 1990-11-15 Michel Drevet Rotierende trommelkolbenmaschine mit festem, zentrierendem kebelgelenk.
FR2680211A1 (fr) * 1991-08-06 1993-02-12 Skf Gmbh Roulement pour mouvements de nutation.
DE10357084A1 (de) * 2003-12-06 2005-06-30 Ina-Schaeffler Kg Taumelscheibengetriebe
MD616Z (ro) * 2012-05-03 2013-10-31 Технический университет Молдовы Reductor armonic axial

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2095316A (en) * 1934-12-14 1937-10-12 Watson Stillman Co Pump
US2150162A (en) * 1936-03-23 1939-03-14 Edwin S Hall Internal combustion engine
US2387908A (en) * 1944-07-29 1945-10-30 Frank C Howard Wabbler drive mechanism
US2498679A (en) * 1948-07-12 1950-02-28 Edwin S Hall Starplate mechanism
US2926735A (en) * 1959-02-02 1960-03-01 Roger R Cook Vehicle chassis, transmission and steering assembly means

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2095316A (en) * 1934-12-14 1937-10-12 Watson Stillman Co Pump
US2150162A (en) * 1936-03-23 1939-03-14 Edwin S Hall Internal combustion engine
US2387908A (en) * 1944-07-29 1945-10-30 Frank C Howard Wabbler drive mechanism
US2498679A (en) * 1948-07-12 1950-02-28 Edwin S Hall Starplate mechanism
US2926735A (en) * 1959-02-02 1960-03-01 Roger R Cook Vehicle chassis, transmission and steering assembly means

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4584927A (en) * 1983-07-01 1986-04-29 Creusot Loire Swash plate mechanism, particularly for a pump drive
WO2004022971A1 (de) * 2002-08-16 2004-03-18 Alfred Kärcher Gmbh & Co. Kg Taumelscheibenpumpe insbesondere für hochdruckreinigungsgeräte
DE102004028044B3 (de) * 2004-06-09 2005-11-17 Ab Skf Lageranordnung
US20110011375A1 (en) * 2007-05-30 2011-01-20 High Density Powertrain, Inc. Super charged engine
US8499729B2 (en) * 2007-05-30 2013-08-06 High Density Powertrain, Inc. Super charged engine
DE102007063541A1 (de) * 2007-12-21 2009-07-02 Alfred Kärcher Gmbh & Co. Kg Antriebsvorrichtung für Hochdruckreinigungsgerät
US20110232476A1 (en) * 2008-09-08 2011-09-29 Michel Drevet Rotary machine with pistons and a barrel
US9010235B2 (en) * 2008-09-08 2015-04-21 Michel Drevet Rotary machine with pistons and a barrel

Also Published As

Publication number Publication date
NO140355C (no) 1979-08-15
JPS5743743B2 (enrdf_load_stackoverflow) 1982-09-17
NL7315923A (enrdf_load_stackoverflow) 1974-06-18
CH572158A5 (enrdf_load_stackoverflow) 1976-01-30
DE2355648C3 (de) 1979-01-11
DK137396B (da) 1978-02-27
JPS505902A (enrdf_load_stackoverflow) 1975-01-22
ATA1029573A (de) 1975-11-15
NO140355B (no) 1979-05-07
FR2211090A5 (enrdf_load_stackoverflow) 1974-07-12
NL174754B (nl) 1984-03-01
GB1421053A (en) 1976-01-14
LU68984A1 (enrdf_load_stackoverflow) 1974-02-22
NL174754C (nl) 1984-08-01
DE2355648B2 (de) 1978-05-11
AT331640B (de) 1976-08-25
DK137396C (enrdf_load_stackoverflow) 1978-07-31
IT996982B (it) 1975-12-10
DE2355648A1 (de) 1974-07-04
BE808576A (fr) 1974-06-13
SU470124A3 (ru) 1975-05-05
ES420384A1 (es) 1976-04-16
SE392952B (sv) 1977-04-25
CA987171A (fr) 1976-04-13

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