EP2514973B1 - Vacuum, pressure or liquid pump - Google Patents

Vacuum, pressure or liquid pump Download PDF

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Publication number
EP2514973B1
EP2514973B1 EP09808937.8A EP09808937A EP2514973B1 EP 2514973 B1 EP2514973 B1 EP 2514973B1 EP 09808937 A EP09808937 A EP 09808937A EP 2514973 B1 EP2514973 B1 EP 2514973B1
Authority
EP
European Patent Office
Prior art keywords
connecting rod
actuators
membranes
eccentric
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.)
Active
Application number
EP09808937.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2514973A1 (en
Inventor
Óscar DONADO MUÑOZ
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.)
Electro Ad SL
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Electro Ad SL
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Publication date
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Publication of EP2514973A1 publication Critical patent/EP2514973A1/en
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Publication of EP2514973B1 publication Critical patent/EP2514973B1/en
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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
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • 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
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
    • 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
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/025—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel
    • F04B43/026—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel each plate-like pumping flexible member working in its own pumping chamber
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/045—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being eccentrics

Definitions

  • Vacuum, pressure or liquid pump of the type that comprises driving means with a shaft connected to an eccentric, at least two membranes that block a similar number of apertures in a box, characterised in that it comprises: a connecting rod, in whose centre houses a single bearing for each eccentric through which the referred shaft passes and at least two actuators that join the membranes to the connecting rod, being said actuators articulating with the connecting rod.
  • pumps are known in the state of the art, with one or two heads, one on each side of the motor, or even two on the same side (opposite with traditional connecting rods and a similar number of bearings). If more extraction capacity is required additional, heads can be added, or they can be over-dimensioned, which involves the use of as many connecting rods, bearings and membranes as required heads, increasing sizes and motor powers.
  • Spanish utility model 0244030 "A DEPRESSION OR VACUUM MEMBRANE PUMP" is known from 1979, in the name of PIERBURG BMBH & CO.KG, which refers to a depression or vacuum membrane pump, especially for conditioning automobile elements, such as servo brakes, the membrane of which is operated from a main shaft via a connecting rod and the chamber that is next to the head is sealed against the atmosphere, the chamber is connecting with the atmosphere by means of at least one valve that allows access the air and prevents the air exit from chamber to the atmosphere. In a similar fashion another valve performs the same process to expulse the air.
  • the pump includes preferably two or three diaphragm-type pumps mounted in a housing.
  • a vertical shaft is rotatably mounted in a housing, the shaft is secured to an unbalanced mass exterior responsive to the movements of the boat to effect the rotation of the shaft.
  • the end of the shaft remote from the end at which the mass is secured comprises an eccentric journal which is connected to a two- or three-arm member by a bearing and whose arms are in turn connected to the diaphragms for operating same successively to take in bilge water through intake pipes and valves and discharge same through outlet valves and pipes.
  • the driving means of pump are an unbalanced mass and do not comprise any motor.
  • the movements of the mass depend on movements of the sea, which are variable by its nature. Actually, this document forms part of the prior art in respect to bilge pumps for a boat or vessel which are operative only in the sea.
  • the present invention relates to a pump according to claim 1.
  • the inventor intends to operate with a single connecting rod, more heads, in other words, using a single connecting rod, be able to place as many actuators with membranes as permitted the connecting rod size, so that, to larger size of the connecting rod, greater number of actuators can be operate. This results in economic savings for both the manufacturer and the end buyer.
  • each head incorporated into the pump requires a different load point along the shaft for each one.
  • This invention uses a single bearing for each eccentric on which point all forces are balanced and stabilised. This is because only one connecting rod is required independently of the number of heads.
  • the present pump can operate a determined number of membranes with the same connecting rod and all forces caused by the heads and membranes are centred with respect to each other at the same working point.
  • an expulsion force is generated, another intake force is produced at the opposite point, with these being equal at all cycle points.
  • Figure 1 illustrates a box 1, driving means or motor 2, apertures in the box 4, which houses the membranes and heads, a shaft 5, an eccentric 8, a connecting rod 6, actuators 7 and the connecting rod pass-through orifices 10 (at the actuator 7 positions).
  • FIG. 1 shows driving means 2, connecting rod 6, eccentric 8, shaft 5, connecting rod pass-through orifices 10 and actuators 7.
  • Figure 3 illustrates the actuator 7 that is joined to the connecting rod via the actuator pass-through orifice 11, with a pin to form a hinge joint.
  • Figure 4 represents box 1, heads 3, box apertures 4, connecting rod 6, actuators 7, shaft 5, connecting rod pass-through orifices 10, pins 12 that form hinges joints and a bearing 9 housing the eccentric.
  • the product is basically configured as follows: it comprises a box 1, driving means 2, with shaft 5 connected to eccentric 8, two membranes (as many as necessary, three, four, six, despite the fact that, although there are two in this embodiment, they cannot be seen because they are housed inside), which block the orifices in box 4 of cited box 1.
  • actuators 7 and the membranes it is possible to configure as many as desired, starting with two by taking into account the positions of actuators 7 so that they compensate the forces as well as possible. For example, with three actuators 7, each one could be positioned at 120o, which would then largely balance the forces. Five actuators would be positioned every 72o and so on according to the desired number. The idea is to divide the circumference by the desired number of actuators 7.
  • this invention includes a single bearing 9 for each eccentric 8.
  • connecting rod 6 the centre of which houses a single bearing 9, through which the referred shaft 5 passes and at least two actuators 7 that connect the membranes housed inside heads 3 to connecting rod 6, with said actuators 7 articulating with connecting rod 6 by, for example, pins.
  • Actuators 7 are articulated to connecting rod 6 by joints that employ pins 12 in this embodiment to form hinge joints.
  • connecting rods 6 partially house actuators 7 just as shown in figures 1 , 3 and 4 .
  • connecting rod 6 articulates by means of a first pass-through orifice 10 through which actuator 7 passes, facing it via pin 12 ( Figure 4 ), which passes through actuator 7, leaving both pass-through orifices 10 and 11 aligned ( Figures 1 , 2 and 4 ).
  • actuators 7 This enables actuators 7 to continue pushing the membranes housed inside head 3 so that they continue to block and unblock the respective entrances and exits inside head 3. Even when the eccentric movement is produced, the connecting rod forces that the movement on the membrane is linear because actuator 7 articulation on connecting rod 6 allows any membranes position to be recovered while these maintain their respective positions over apertures 4.
  • connecting rod 6 becomes the connection between actuator 7 and bearing 9 and eccentric 8, thus permitting the membranes to work and adapt to any position as forced by the eccentric.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
EP09808937.8A 2009-12-17 2009-12-17 Vacuum, pressure or liquid pump Active EP2514973B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2009/070603 WO2011073464A1 (es) 2009-12-17 2009-12-17 Bomba de vacío, presión o líquidos

Publications (2)

Publication Number Publication Date
EP2514973A1 EP2514973A1 (en) 2012-10-24
EP2514973B1 true EP2514973B1 (en) 2021-03-31

Family

ID=42668186

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09808937.8A Active EP2514973B1 (en) 2009-12-17 2009-12-17 Vacuum, pressure or liquid pump

Country Status (4)

Country Link
US (1) US20130039789A1 (es)
EP (1) EP2514973B1 (es)
BR (1) BR112012014602A2 (es)
WO (1) WO2011073464A1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118775248A (zh) 2014-12-30 2024-10-15 固瑞克明尼苏达有限公司 轴向往复泵上的一体式安装系统
BR102018003284B1 (pt) 2017-02-21 2021-07-20 Graco Minnesota Inc. Haste de pistão para uma bomba, bomba, pulverizador, e, método para substituir uma luva de desgaste
EP4127474A1 (en) 2020-03-31 2023-02-08 Graco Minnesota Inc. Pump drive system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179244A (en) * 1977-05-31 1979-12-18 Hargraves Aerobic Systems, Inc. Rotary low pressure air displacement pump
US4931000A (en) * 1989-03-02 1990-06-05 Gilian Instrument Corp. Double acting diaphragm air pump

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2146123A (en) * 1936-05-25 1939-02-07 Logan Engineering Co Diaphragm pump
US2545315A (en) * 1946-02-23 1951-03-13 Edith M Sproull Pump
US2568357A (en) * 1948-11-26 1951-09-18 Tony M Moulden Variable-displacement radial-piston pump
ES244030A1 (es) 1958-09-09 1959-01-16 Sim Frey Ges F R Ind Forschung Un dispositivo de cursor para un cierre
FR2049347A5 (es) 1969-06-06 1971-03-26 Cozic Albert
JPS60233379A (ja) * 1984-04-21 1985-11-20 Showa Seiki Kogyo Kk 往復ガス圧縮機
GB8608237D0 (en) * 1986-04-04 1986-05-08 Collins Motor Corp Ltd Reciprocatory positive displacement machines
US4963075A (en) * 1988-08-04 1990-10-16 The Charles Machine Works, Inc. Radial diaphragm pump
CH678881A5 (es) * 1989-03-23 1991-11-15 Sulzer Ag
US5016597A (en) * 1989-05-17 1991-05-21 Outboard Marine Corporation Crankshaft driven compressor for supplying air to a fuel injection mechanism
US5180292A (en) * 1991-08-28 1993-01-19 General Motors Corporation Radial compressor with discharge chamber dams
JP3608092B2 (ja) * 1995-08-24 2005-01-05 三洋電機株式会社 多段圧縮装置
US6162030A (en) * 1997-06-13 2000-12-19 Encynova International, Inc. Zero leakage valveless positive fluid displacement device
US8052401B2 (en) * 2005-10-11 2011-11-08 Parker-Hannifin Corporation Double-acting radial piston hydraulic apparatus
CA2866734C (en) * 2006-06-08 2017-05-02 Larry Alvin Schuetzle Reciprocating compressor or pump and a portable tool powering system including a reciprocating compressor
DE102007028351B4 (de) * 2007-06-20 2013-01-17 Knf Flodos Ag Membranpumpe
US8197233B2 (en) * 2008-05-18 2012-06-12 Dynaflo, Inc. Diaphragm pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179244A (en) * 1977-05-31 1979-12-18 Hargraves Aerobic Systems, Inc. Rotary low pressure air displacement pump
US4931000A (en) * 1989-03-02 1990-06-05 Gilian Instrument Corp. Double acting diaphragm air pump

Also Published As

Publication number Publication date
WO2011073464A1 (es) 2011-06-23
US20130039789A1 (en) 2013-02-14
EP2514973A1 (en) 2012-10-24
BR112012014602A2 (pt) 2018-12-04

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