EP3992425A1 - Modulare pumpe - Google Patents

Modulare pumpe Download PDF

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Publication number
EP3992425A1
EP3992425A1 EP21205209.6A EP21205209A EP3992425A1 EP 3992425 A1 EP3992425 A1 EP 3992425A1 EP 21205209 A EP21205209 A EP 21205209A EP 3992425 A1 EP3992425 A1 EP 3992425A1
Authority
EP
European Patent Office
Prior art keywords
pump
module
suction
zone
fluid
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.)
Granted
Application number
EP21205209.6A
Other languages
English (en)
French (fr)
Other versions
EP3992425B1 (de
EP3992425C0 (de
Inventor
Jérôme Renard
Valentin FAUVIN
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.)
Suntec Industries France SA
Original Assignee
Suntec Industries France 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 Suntec Industries France SA filed Critical Suntec Industries France SA
Publication of EP3992425A1 publication Critical patent/EP3992425A1/de
Application granted granted Critical
Publication of EP3992425B1 publication Critical patent/EP3992425B1/de
Publication of EP3992425C0 publication Critical patent/EP3992425C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/101—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with a crescent-shaped filler element, located between the inner and outer intermeshing members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/20—Fluid liquid, i.e. incompressible
    • F04C2210/203—Fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/70—Use of multiplicity of similar components; Modular construction

Definitions

  • the present invention relates to the general field of installations, in particular of the heating installation type (domestic, collective, industrial, mobile and on-board) and more particularly to volumetric pumps intended for said heating installations.
  • the heating installation type domestic, collective, industrial, mobile and on-board
  • volumetric pumps driven, conventionally by an electric motor, the pumps drawing said fuel oil from a storage tank and rejecting it under pressure direction of the nozzle associated with the boiler burner.
  • these pumps are associated with at least one solenoid valve allowing the fuel oil to pass or not and a pressure regulator making it possible to maintain a sufficient pressure of fuel oil to allow it to be sprayed at the level of the nozzle, the solenoid valve and the pressure regulator often being integrated into the body of said pumps.
  • each volumetric pump must be designed to adapt to the needs and configurations of the different manufacturers of domestic oil boilers. It is therefore necessary to manufacture as many pump models as there are boiler configurations, this representing the major drawback of these volumetric pumps. Indeed, the manufacturer of this type of pump must have a wide range and manage a large stock of pumps at a high cost price since they are made of materials resistant to high pressures such as steel or cast iron.
  • the object of the present invention is therefore to provide a modular pump that is inexpensive, compact, easy to manufacture, and can be easily adapted to the needs and configurations of the various manufacturers, in particular of domestic oil boilers.
  • the module comprises a return zone intended for the return of the excess fluid not used by said equipment from the volumetric pump and the pump body comprises a return pipe allowing the possible return of the excess fluid to the storage tank and being fluidly connected to the return zone of said module, when the latter is inserted into said housing
  • the module comprises a body in the overall shape of a cylinder, a ring integral with said body and receiving at least one volumetric pump, and a flange integral with said ring.
  • the volumetric pump is advantageously of the internal gear pump type and comprises a ring gear with internal teeth capable of pivoting inside said ring around the longitudinal axis of the body of the module, a pinion with eccentric external teeth and a crescent filling the internal space between the crown and the pinion, the latter being fixed to one of the ends of a shaft pivoting with respect to said body about an axis substantially parallel to the longitudinal axis of the latter, and being configured so that its free end is disposed outside said body on the side opposite the pump body, when said module is inserted into said pump body , and associated with a motor.
  • the suction zone of the module is constituted by at least one first radial groove arranged on the rear face of the flange so as to emerge outside the perimeter face of the said flange to allow routing of the fluid from the perimeter face to the suction of the volumetric pump.
  • the flange comprises on its front face a second radial groove from the center of the latter until it emerges outside the perimeter face of said flange, and a circular groove intersecting said second radial groove and being capable of receiving an O-ring.
  • the return zone of the module is then constituted by the zone located inside said circular groove, the second radial groove making it possible to make the connection between the two suction and return zones in the absence of the O-ring.
  • the module preferably comprises a plurality of fixing members capable of assembling the body, the ring and the flange together, each fixing member being a screw capable of being inserted into an orifice made in the flange then into an orifice made in the ring, and screwed into a thread made in the body, the head of said screw then coming to rest against the front face of said flange, and the bottom of the housing of the pump body advantageously comprises recesses each capable of receiving the head of one of the screws.
  • a modular pump 1 in accordance with the invention, for pressurizing a fluid intended in particular for equipment, not shown, and comprising a module 2 and a pump body 3, in which is at least partially inserted removably said module 2, the latter comprising a body 4 in the overall shape of a cylinder.
  • the pressurized fluid equipment is equipment of a heating installation of the domestic, collective, industrial, mobile or even on-board type, said equipment then being a nozzle receiving pressurized fuel , said nozzle being offset or fixed directly to the pump body 3.
  • cylinder is understood here to mean a volume formed by a straight line which moves parallel to itself while resting on a plane curve and not only a cylinder of revolution.
  • the positive-displacement pump 5 could obviously be of a completely different type such as, for example, a gerotor pump (that is to say an internal gear pump without separating crescent), vane pump or even axial or radial piston pump, without departing from the scope of the present invention.
  • a gerotor pump that is to say an internal gear pump without separating crescent
  • vane pump or even axial or radial piston pump, without departing from the scope of the present invention.
  • Said pinion 8 is also fixed to one of the ends of a shaft 10 pivoting with respect to the body 4 of the module 2 about an axis substantially parallel to the longitudinal axis of the latter.
  • This shaft 10 is configured so that its free end is disposed outside of said body 4 on the side opposite pump body 3, when module 2 is inserted into said pump body 3.
  • Said shaft 10 is arranged to be associated by its free end, in a conventional manner, to an advantageously electric motor, not shown, so as to drive said ring gear 6 in the same direction of rotation.
  • the seal between the shaft 10 and the body 4 of the module 2 is ensured, conventional manner, by a lip seal 11 located on the side of the free end of said shaft 10 (Cf. figure 2 ).
  • the seal between the shaft 10 and the body 4 of the module 2 may be ensured by other sealing means such as, for example, a mechanical seal, without departing from the scope of the present invention.
  • the flange 12 has on its rear face at least a first radial groove 13 constituting the suction zone of the module 2 and being arranged so as to emerge on the outside on the perimeter face 14 of said flange 12 to allow the routing of the fluid from the perimeter face 14 to the suction of the positive-displacement pump 5.
  • the suction zone may also comprise several first radial grooves 13, for example two as represented on the figure 8 .
  • front designates here an element or part of an element of the module 2 located on the side of the pump body 3, when the module 2 is partly inserted into the latter, and by “rear” an element or a part of element of module 2 located on the opposite side.
  • the flange 12 comprises at least one second radial groove 15 being provided on the front face of said flange 12 from the center of the latter until it emerges on the outside on the perimeter face 14 of said flange 12 (Cf. figures 6 and 7 ).
  • the flange 12 also has on its front face a circular groove 17 intersecting the second radial groove 15 capable of receiving an O-ring 18 so as to separate the two suction and return zones (Cf. figures 6 and 7 ) by bearing against the pump body 3, when the module 2 is partly inserted into the latter.
  • the return zone is then constituted by the zone located inside said circular groove 17 receiving said O-ring 18, the second radial groove 15 making it possible to make the connection between the two suction and return zones. .
  • Said O-ring 18 can easily be removed by dismantling the module 2 from the pump body 3 so as to be able to use the modular pump 1 on different types of installations.
  • the modular pump 1 can then equip a twin-tube installation, in which the fluid passing through the return zone goes directly outside of said module 2.
  • the modular pump 1 can then equip a single-tube installation, in which the fluid passing through the return zone returns directly to the suction zone.
  • the module 2 and the pump body 3 of said modular pump 1 may not include a return zone and a channeling zone respectively. back (described later), without departing from the scope of the present invention.
  • the module 2 further comprises a plurality of fixing members capable of assembling together the body 4, the ring 7 and the flange 12.
  • Each fixing member is advantageously a screw 19 capable of being inserted into an orifice 20 made in the flange 12 then into an orifice 21 made in ring 7, and screwed into a thread 22 made in body 4, the head of said screw 19 then coming to bear against the front face of said flange 12 (Cf. figure 2 and 7 ).
  • the module 2 comprises several screws 19, the latter preferably being of the cylindrical head screw type and arranged uniformly along a circle. In the embodiment shown in the figures, the screws 19 are three in number and angularly offset by 120°.
  • Said module 2 further comprises a second circulation zone, hereinafter called discharge zone, intended for the discharge of said compressed fluid coming from volumetric pump 5.
  • discharge zone a second circulation zone, hereinafter called discharge zone, intended for the discharge of said compressed fluid coming from volumetric pump 5.
  • the body 4 of the module 2 comprises at least a first radial groove 23 provided on its peripheral face, constituting the discharge zone of the module 2 and being associated with a generally radial discharge duct 24 provided in said body 4 to allow the routing of the fluid from the discharge of the volumetric pump 5 to the first radial groove 23 of the body 4 of the module 2 (Cf. figure 2 ).
  • the body 4 of the module 2 further comprises two second radial grooves 25 arranged on either side of the first radial groove 23 and each adapted to receive an O-ring 26 bearing against the pump body 3, so as to avoid any communication between the discharge zone and the suction and return zones, or the outside of the modular pump 1 according to the invention.
  • This configuration is interesting, because the discharge of the pressurized fluid is carried out by the first radial groove 23 by creating a balance of the pressure forces, the latter being distributed over the entire peripheral face of the first radial groove 23 of the body 4 of the module. 2.
  • the modular pump 1 further comprises a pump body 3, in which the module 2 is at least partly inserted.
  • Said pump body 3 comprises a housing 27 adapted to receive the module 2, the latter being inserted at least in part by its front end, that is to say that located on the side opposite the free end of the end. free from shaft 10 of volumetric pump 5.
  • the pump body 3 incorporates at least one so-called cut-off solenoid valve, not shown, allowing the pressurized fluid from the module 2 to pass or not, and one or more pressure regulators, not shown, possibly associated with a switching and making it possible to maintain sufficient fluid pressure to allow, for example, its spraying at the level of a nozzle.
  • the shape of the pump body 3 and the position of the connecting members are determined to adapt the modular pump 1 according to the invention to the configuration of the associated heating installation and to the needs of the different manufacturers. .
  • the bottom 29 of the housing 27 of the pump body 3 advantageously comprises recesses 30 each capable of receiving the head of one of the screws 19 making it possible to assemble between them the body 4, the ring 7 and the flange 12 of the module 2 (Cf. figure 4 ). It is understood that this configuration allows the O-ring 18 arranged in the circular groove 17 arranged on the front face of the flange 12 of the module 2 to be compressed between the said front face and the bottom 29 of the housing 27.
  • this configuration also allows the blocking in rotation of the module 2 with respect to the pump body 3, the blocking in translation being ensured by a stop segment 31 disposed in an internal radial groove 31 provided on the housing 27 on the opposite side. audit bottom 29 (Cf. figure 2 and 3 ).
  • This configuration finally allows an adjustment of the angular position of the module 2 with respect to the pump body 3.
  • the modular pump 1 according to the invention can present an eccentricity between the diameter of the shaft 10 of the module 2 and the diameter of the housing 27 of the pump body 3, as is the case with a volumetric pump 5 of the internal gear pump type, it may be advantageous to be able to choose in which direction to orient the eccentricity. For this, it is possible, for example, to ensure that the screws 19 are such that they no longer have a uniform angular offset between them.
  • the screws 19 will advantageously have between them a uniform angular offset so that the installation of the module 2 is not dependent on a determined angular position. .
  • the suction, the delivery and the return of the fluid are carried out respectively via the annular zone 28 of the housing 27 of the pump body 3, the first radial groove 23 and the second radial groove 15 of the module 2 also facilitates the fluidic connection suction, discharge and return pipes from the pump body 3 with the module 2, because the ends of said suction, discharge and return pipes located on the side of the module 2 do not require precise angular positioning with respect to said module 2.
  • fluid connection or “fluidically connected” denotes here the fact that the modular pump 1 according to the invention is shaped so that, when the module 2 is inserted into said housing 27 of the pump body 3, the fluid can pass from the suction, delivery and return pipes of the pump body 3 to respectively the suction, delivery and return zones of said module 2 .
  • the particular configuration of the modular pump 1 according to the invention is interesting, because all the moving elements subjected to significant mechanical forces are arranged only in the module 2, which has the consequence that only the module 2 must be made of a resistant material such as steel or cast iron, the pump body 3 possibly being made of a less "noble” material such as an aluminum alloy, for example. It is then understood that this particular allows a significant reduction in the cost price of the modular pump 1 according to the invention.
  • the particular configuration of the modular pump 1 according to the invention allows an interesting modularity, because it suffices to remove the module 2 from the pump body 3 to replace the pump body 3 with another adapted to the configuration of a another heating installation and/or the needs of another manufacturer.
  • the maintenance of the modular pump 1 according to the invention is also simplified, it suffices to remove the defective module 2 from the pump body 3 to replace it with a new one.
  • modular pump 1 makes it possible to achieve manufacturing savings, because one and the same model of module 2 can be associated with different models of pump body 3.
  • the modular pump 1 according to the invention is particularly intended for the nozzles of heating installations of the boiler type using pressurized domestic fuel oil, but it can also be used for any other type of equipment or installation and/or for pressurized by a fluid completely different from domestic fuel oil.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP21205209.6A 2020-10-29 2021-10-28 Modulare pumpe Active EP3992425B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2011104A FR3115840B1 (fr) 2020-10-29 2020-10-29 Pompe modulaire

Publications (3)

Publication Number Publication Date
EP3992425A1 true EP3992425A1 (de) 2022-05-04
EP3992425B1 EP3992425B1 (de) 2023-07-26
EP3992425C0 EP3992425C0 (de) 2023-07-26

Family

ID=74045819

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21205209.6A Active EP3992425B1 (de) 2020-10-29 2021-10-28 Modulare pumpe

Country Status (2)

Country Link
EP (1) EP3992425B1 (de)
FR (1) FR3115840B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120231720A (zh) * 2025-05-30 2025-07-01 珠海市洁源电器有限公司 一种模块化组合的蠕动泵
GB2641288A (en) * 2024-05-24 2025-11-26 Neatjet Ltd Liquid delivery system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2488345A1 (fr) * 1980-08-09 1982-02-12 Hartwig Paulsen Pompe a engrenages chauffable
KR20160004453A (ko) * 2014-07-02 2016-01-13 영신정공 주식회사 유압작동식 트랜스퍼 케이스용 전동 오일펌프
DE102014217049A1 (de) * 2014-08-27 2016-03-03 Robert Bosch Gmbh Innenzahnradpumpe
WO2019174773A1 (de) * 2018-03-13 2019-09-19 Nidec Gpm Gmbh Baukastensystem eines axial integrierten pumpenaufbaus
US20190360484A1 (en) 2018-05-23 2019-11-28 Robert Bosch Gmbh Connection Assembly with Feed Pump and Elastic Element

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2488345A1 (fr) * 1980-08-09 1982-02-12 Hartwig Paulsen Pompe a engrenages chauffable
KR20160004453A (ko) * 2014-07-02 2016-01-13 영신정공 주식회사 유압작동식 트랜스퍼 케이스용 전동 오일펌프
DE102014217049A1 (de) * 2014-08-27 2016-03-03 Robert Bosch Gmbh Innenzahnradpumpe
WO2019174773A1 (de) * 2018-03-13 2019-09-19 Nidec Gpm Gmbh Baukastensystem eines axial integrierten pumpenaufbaus
US20190360484A1 (en) 2018-05-23 2019-11-28 Robert Bosch Gmbh Connection Assembly with Feed Pump and Elastic Element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2641288A (en) * 2024-05-24 2025-11-26 Neatjet Ltd Liquid delivery system
CN120231720A (zh) * 2025-05-30 2025-07-01 珠海市洁源电器有限公司 一种模块化组合的蠕动泵

Also Published As

Publication number Publication date
FR3115840B1 (fr) 2023-03-17
EP3992425B1 (de) 2023-07-26
EP3992425C0 (de) 2023-07-26
FR3115840A1 (fr) 2022-05-06

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