EP0017552B1 - Pumpe mit Kolben und Zylindern in axialer Anordnung - Google Patents

Pumpe mit Kolben und Zylindern in axialer Anordnung Download PDF

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Publication number
EP0017552B1
EP0017552B1 EP80400385A EP80400385A EP0017552B1 EP 0017552 B1 EP0017552 B1 EP 0017552B1 EP 80400385 A EP80400385 A EP 80400385A EP 80400385 A EP80400385 A EP 80400385A EP 0017552 B1 EP0017552 B1 EP 0017552B1
Authority
EP
European Patent Office
Prior art keywords
pump
conduits
liquid
axis
discharge
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
EP80400385A
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English (en)
French (fr)
Other versions
EP0017552A1 (de
Inventor
Gérard Pere
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
Priority to AT80400385T priority Critical patent/ATE363T1/de
Publication of EP0017552A1 publication Critical patent/EP0017552A1/de
Application granted granted Critical
Publication of EP0017552B1 publication Critical patent/EP0017552B1/de
Expired 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

Definitions

  • the present invention relates to a pump comprising several capacities for pumping the liquid formed by cylinders and pistons, the arrangement of which is said to be in barrels.
  • the present invention is particularly applicable to pumps for pumping sludge.
  • a suction valve is placed upstream of a pumping capacity so as to open under the effect of the vacuum created by the suction stroke of the piston.
  • a discharge valve is placed downstream of each pumping capacity so as to open during the discharge stroke of the piston, the suction valve being closed.
  • the liquid pumping capacities are connected to a common suction pipe via pipes, the circulation of the liquid being controlled by the suction valves.
  • the pumping capacities are also connected to a common delivery pipe by pipes, the circulation of the liquid being controlled by the delivery valves.
  • the object of the present invention is to limit the drawbacks linked, in known pumps, to the pipes which serve to channel the liquid up to the pumping capacities and from these capacities to the common evacuation pipe.
  • the subject of the invention is a pump of the barrel type in which the use of pipes serving to channel the liquid to be displaced is avoided, upstream and downstream of the pumping capacities.
  • the liquid to be moved is channeled in short lengths of pipes between on the one hand the general intake piping and the capacities and on the other hand between these capacities and the general delivery piping. This results in an equal distribution of the liquid to be moved in the conduits and in some cases allows the elimination of the booster pump.
  • the risks of cavitation due to pulsations can be reduced Maintenance is easy thanks to the use of easily removable cylinder heads which are pierced with conduits channeling the liquid to be moved and are equipped with valves.
  • the size of the pump according to the invention is also smaller than that of known pumps.
  • the pump according to the invention comprises several pumping capacities formed by cylinders fixed to a frame in a barrel arrangement and by pistons capable of sliding in these cylinders under the action of a drive mechanism, in which the liquid is channeled after the general suction piping by a central distribution channel and by radial conduits which communicate downstream of suction valves with said pumping capacities downstream of which discharge valves control the flow of the liquid which is channeled by radial collecting ducts which open into a collecting channel connected to the general discharge piping and it is essentially characterized in that it comprises a central cylinder head pierced on the one hand with said central distribution channel and with said radial ducts and on the other hand, said radial collecting ducts and the delivery collecting duct and lateral cylinder heads on which are fitted with suction and discharge valves and which are pierced with conduits communicating with the radial conduits and with the pumping capacities, each of the lateral cylinder heads being applied with sealing against a bearing surface of the central cylinder head.
  • the pump comprises a group of cylinders 11 which are fixed to a frame 2 according to a so-called barrel arrangement, the axes of these cylinders being generators of a fictitious cylinder whose axis is identified 21.
  • a piston is engaged in each cylinder 12.
  • This piston is provided with a seal which seals with the bore of the cylinder.
  • This piston and this cylinder together form, on the side of the active face 14 of the piston, a pumping capacity 15 which contains the liquid to be displaced.
  • Each piston is secured to a piston rod 13 which is linked, optionally by couplings, to a slide 16 guided in a jacket 17 secured to the frame.
  • Each slide 16 is linked to a connecting rod 31 by a ball joint 311.
  • This connecting rod is linked by a ball joint 312 to a plate 32 forming part of a drive mechanism 3 known per se.
  • the plate 32 is inclined on the axis 21 so that the articulations 312 of the connecting rods are contained in a plane inclined with respect to the axis 21.
  • This plate is animated by a nutation movement around the axis 21 by the drive mechanism.
  • Such a drive mechanism adapted to the reciprocating movement of the pistons 12 is for example described in French patent 2,211,090 or in French patent 2,271,459.
  • the liquid to be moved enters the pump through a general suction pipe 81 and exits through a general delivery pipe 82. These two pipes are coaxial with the axis 21.
  • the liquid to be moved is channeled, between the piping 81 and the piping 82, in a central cylinder head 4 and in side cylinder heads 5.
  • the central cylinder head 4 is fixed to the frame by tie rods 91.
  • the side cylinder heads 5 are applied by means of bearings planes against flat bearing surfaces 43 of the central cylinder head, these bearing surfaces being parallel to the axis 21.
  • the lateral cylinder heads are moreover applied by flanges 54 against the frame 2.
  • the central cylinder head comprises a central distribution channel 41 which is connected coaxially to the general suction piping 81.
  • This channel 41 supplies bypass conduits 42 which radiate all around the axis 21 so that the outlets at the bearing surfaces 43 are located in a plane perpendicular to this axis 21.
  • the liquid flows in these conduits 42 from the center outwards, in the direction of the arrows.
  • the liquid to be moved circulates in each side cylinder head 5, being controlled by a suction valve 61 and by a discharge valve 71.
  • the suction valve 61 is associated with a seat 62 against which it is applied by a spring 64.
  • the suction valve 61 moves along an axis perpendicular to the axis 21.
  • the assembly can be disassembled by means of a plug 63 which screws into the body of the lateral cylinder head.
  • the discharge valve 71 is associated with a seat 72 against which it is applied by a spring 74.
  • the discharge valve moves along an axis parallel to the axis 21. All of the members associated with the discharge valve can be removed thanks to a plug 73 screwing into the body of the side bolt.
  • Each lateral cylinder head comprises, upstream of the seat 62 associated with the suction valve, a radial channel 51 which extends a bypass duct 42 of the central cylinder head.
  • the seal between the conduits 42 and 51 is ensured by seals.
  • This radial conduit communicates downstream of the valve 61 with a pumping capacity 15 via a conduit 52 which is parallel to the axis 21.
  • This conduit 52 communicates with a chamber 56 between the suction valve 61 and the discharge valve 71.
  • the flow of the liquid, downstream of the chamber 56, is controlled by the discharge valve 71. Downstream of this valve 71, the liquid is channeled in a radial discharge conduit 53.
  • the central cylinder head is pierced radially by manifold conduits 45 which open into a collecting channel 44.
  • This channel 44 is connected coaxially to the general delivery pipe 82.
  • Each collecting pipe 45 is connected to a radial delivery pipe 53 of a cylinder head lateral. The seal, at the lateral surfaces, between the conduits 45 and 53 is ensured by seals.
  • the axis of movement of the suction valve 61 is perpendicular to the axis 21, the axis of movement of the discharge valve 71 being parallel to this axis 21.
  • the central cylinder head 4 and the side cylinder heads 5 can be obtained by molding.
  • the central cylinder head 4 can possibly be made in two parts.
  • the pistons 12 are driven in an alternating movement which sucks in and discharges the liquid supplied by the general suction pipe 81.
  • the suction valve 61 of a side cylinder head 5 rises under the effect of the vacuum created by the suction stroke of the piston associated with this cylinder head.
  • a quantity of liquid coming from the bypass conduits 42 is then admitted into the pumping capacity 15.
  • the suction valve 61 is applied against the associated seat 62.
  • the delivery valve 71 moves away from the seat associated so as to allow the flow of liquid in the discharge conduits 53 and 45. Because the pistons 12 are offset along the axis 21 of the pump, the flow of liquid in the general discharge piping 82 is relatively regular in time.

Landscapes

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

Claims (5)

1. Pumpe mit einer Mehrzahl von Pumpendurchlässen (15), die von Zylindern, die in tonnenförmiger Anordnung an einem Gestellrahmen (2) befestigt und von Kolben (12) gebildet sind, die in den Zylindern (11) unter Wirkung eines Antriebsmechanismus (3) verschiebbar sind, in welcher Pumpe die Flüssigkeit mittels der allgemeinen Ansaugrohrleitung (81) durch einen zentralen Verteilerkanal (41) und durch radiale Leitungen (42, 51) geführt wird, die in Strömungsrichtung nach den Ansaugklappen (61) mit den Pumpendurchlässen (15) kommunizieren, wobei in Strömungsrichtung nach den letzteren Förderklappen (71) die Strömung der Flüssigkeit steuern, die in radialen Sammelleitungen (53, 45) geführt wird, welche in einen Sammelkanal (44) münden, der mit der Förderleitung (82) in Verbindung ist, dadurch gekennzeichnet, daß sie einen zentralen Zylinderkopf (4), der einerseits vom zentralen Verteilerkanal (41) und den radialen Leitungen (42) und anderseits von den radialen Sammelleitungen (45) und dem Fördersammelkanal (44) durchsetzt ist, und seitliche Zylinderköpfe (5) aufweist, auf welchen die Ansaugklappen (61) und die Förderklappen (71) angeordnet sind und welche Zylinderköpfe von Leitungen (51, 52, 56, 53) durchsetzt sind, die mit den radialen Leitungen und mit den Pumpendurchlässen kommunizieren, und daß jeder der seitlichen Zylinderköpfe (5) abdichtend gegen eine Auflagefläche (43) des zentralen Zylinderkopfes anliegt.
2. Pumpe nach Anspruch 1, dadurch gekennzeichnet, daß der zentrale Zylinderkopf (4) von ebenen Auflageflächen (43) begrenzt ist, die parallel zur Achse der Pumpe angeordnet sind.
3. Pumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die seitlichen Zylinderköpfe (5) gegen den Gestellrahmen (2) anliegen.
4. Pumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der zentrale Verteilerkanal (41) und der zentrale Fördersammelkanal (44) entlang der Achse (21) der Pumpe angeordnet sind.
5. Pumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Verschiebungsachsen der Ansaugklappen (61) lotrecht in bezug auf die Achse der Pumpe und die Verschiebungsachsen der Förderklappen (71) parallel in bezug auf die Achse der Pumpe angeordnet sind.
EP80400385A 1979-03-30 1980-03-21 Pumpe mit Kolben und Zylindern in axialer Anordnung Expired EP0017552B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400385T ATE363T1 (de) 1979-03-30 1980-03-21 Pumpe mit kolben und zylindern in axialer anordnung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7908006 1979-03-30
FR7908006A FR2461127A1 (fr) 1979-03-30 1979-03-30 Pompe alternative

Publications (2)

Publication Number Publication Date
EP0017552A1 EP0017552A1 (de) 1980-10-15
EP0017552B1 true EP0017552B1 (de) 1981-11-04

Family

ID=9223747

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400385A Expired EP0017552B1 (de) 1979-03-30 1980-03-21 Pumpe mit Kolben und Zylindern in axialer Anordnung

Country Status (5)

Country Link
US (1) US4342544A (de)
EP (1) EP0017552B1 (de)
AT (1) ATE363T1 (de)
DE (1) DE3060068D1 (de)
FR (1) FR2461127A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2548284B1 (fr) * 1983-07-01 1987-10-23 Creusot Loire Mecanisme a plateau oblique, pour la commande d'une pompe
NL8501315A (nl) * 1985-05-08 1986-12-01 Multinorm Bv Pomp.
DE8514497U1 (de) * 1985-05-15 1985-07-18 Kränzle, Josef, 7918 Illertissen Hochdruckkolbenpumpe
US4707789A (en) * 1985-11-29 1987-11-17 General Motors Corporation Adaptive direct pressure shift control for a motor vehicle transmission
US4653350A (en) * 1985-11-29 1987-03-31 General Motors Corporation Adaptive direct pressure shift control for a motor vehicle transmission
US4734013A (en) * 1986-02-18 1988-03-29 V-Tech Industries Inc. Rotary pressure intensifier
US7007589B1 (en) * 1997-09-15 2006-03-07 R. Sanderson Management, Inc. Piston assembly
US6446587B1 (en) 1997-09-15 2002-09-10 R. Sanderson Management, Inc. Piston engine assembly
US6460450B1 (en) 1999-08-05 2002-10-08 R. Sanderson Management, Inc. Piston engine balancing
US7011469B2 (en) 2001-02-07 2006-03-14 R. Sanderson Management, Inc. Piston joint
US7331271B2 (en) 2001-02-08 2008-02-19 R. Sanderson Management, Inc. Variable stroke/clearance mechanism
US6854377B2 (en) 2001-11-02 2005-02-15 R. Sanderson Management, Inc. Variable stroke balancing
US6913447B2 (en) * 2002-01-22 2005-07-05 R. Sanderson Management, Inc. Metering pump with varying piston cylinders, and with independently adjustable piston strokes
US7140343B2 (en) 2002-05-28 2006-11-28 R. Sanderson Management, Inc. Overload protection mechanism
US7325476B2 (en) 2004-05-26 2008-02-05 R. Sanderson Management, Inc. Variable stroke and clearance mechanism
IT201900024283A1 (it) * 2019-12-17 2021-06-17 Mixtron S R L Pompa a pistoni assiali a piatto inclinato

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR860429A (fr) * 1939-06-22 1941-01-14 Olaer Soc Nouvelle pompe pour liquides
US2400119A (en) * 1942-01-14 1946-05-14 Joseph F Joy Variable displacement pump
FR904061A (fr) * 1943-12-13 1945-10-25 Morane Jeune Ets Pompe hydraulique de compression à débit variable
FR1007901A (fr) * 1948-04-13 1952-05-12 Cie Gen Equip Aeronautique Pompe auto-régulatrice à réglage progressif
FR1007900A (fr) * 1948-04-13 1952-05-12 Cie Gen Equip Aeronautique Perfectionnement aux pompes auto-régulatrices
DE921246C (de) * 1950-12-12 1954-12-13 Teves Kg Alfred Hochdruck-Kolbenpumpe
GB913980A (en) * 1961-09-04 1962-12-28 Applied Power Ind Inc Slide plate type volume control valve
GB1037557A (en) * 1962-06-04 1966-07-27 Bergwerksverband Gmbh Axial piston pump
GB1067962A (en) * 1964-02-15 1967-05-10 Hydraulik Gmbh Improvements in/or relating to swash plate pumps
FR1453856A (fr) * 1965-03-29 1966-09-30 Bennes Marrel Perfectionnements aux pompes hydrauliques à pistons axiaux
US3746476A (en) * 1971-04-01 1973-07-17 Applied Power Ind Inc Hydraulic pump
FR2204230A5 (de) * 1972-10-20 1974-05-17 Dowell Schlumberger
US4105369A (en) * 1977-06-30 1978-08-08 Owatonna Tool Company Two-stage pump

Also Published As

Publication number Publication date
FR2461127A1 (fr) 1981-01-30
ATE363T1 (de) 1981-11-15
DE3060068D1 (en) 1982-01-14
US4342544A (en) 1982-08-03
EP0017552A1 (de) 1980-10-15
FR2461127B1 (de) 1982-02-26

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