EP4239203A1 - Pumpenanordnung umfassend eine ablassschraube - Google Patents

Pumpenanordnung umfassend eine ablassschraube Download PDF

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Publication number
EP4239203A1
EP4239203A1 EP23154893.4A EP23154893A EP4239203A1 EP 4239203 A1 EP4239203 A1 EP 4239203A1 EP 23154893 A EP23154893 A EP 23154893A EP 4239203 A1 EP4239203 A1 EP 4239203A1
Authority
EP
European Patent Office
Prior art keywords
plug
pump assembly
drainage
cross
sectional area
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.)
Pending
Application number
EP23154893.4A
Other languages
English (en)
French (fr)
Inventor
Florian SOOR
Tobias DEMMELMAIER
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.)
Husqvarna AB
Original Assignee
Husqvarna AB
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 Husqvarna AB filed Critical Husqvarna AB
Publication of EP4239203A1 publication Critical patent/EP4239203A1/de
Pending 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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/04—Draining
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/16—Pumping installations or systems with storage reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4293—Details of fluid inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • F05D2260/602—Drainage

Definitions

  • the '032 reference provides a pump with a drain valve structure.
  • a nut is sealed and welded on a side of a pump casing.
  • An O-shaped sealing ring is sleeved on the drain plug.
  • the drain plug is sealed and screwed into the nut through the O-shaped sealing circle, and an inner screw plug is screwed on the drain.
  • the screw plug is screwed tightly (equivalent to closing the faucet and acting as a seal), unscrewed (equivalent to a part of the faucet switch being turned on, and acting as a slow drain), and unscrewed (equivalent to fully opening the faucet switch for rapid drainage).
  • the head of the inner plug is tapered and the drain port on the wall of the water inlet cavity of the pump casing is in sealed contact.
  • the water outlet end of the water drain plug is a groove and an O-shaped sealing ring is inlaid in the groove, and the purpose is to form a sealed contact with the inner screw plug wall to prevent leakage.
  • the water from a water source may enter the inlet opening 114 of the pump housing 110 due to a sucking action of an impeller (not shown) housed in the pump housing 110.
  • the outlet opening 116 is provided on a pressure side "P2" of the pump housing 110.
  • the pressurized water from the pump housing 110 may be accessed for use with various domestic and industrial applications.
  • the outlet opening 116 (as shown in FIG. 2 ) is extended by virtue of a first pipe "X1" and a second pipe "X2" to provide use with multiple applications simultaneously. Further, the first pipe "X1" is coupled to the outlet opening 116 using an adapter 160.
  • the drainage plug 120 (as shown in FIGS. 2 and 3 ) includes a first plug element 120A having a first cross-sectional area "A1" and a second plug element 120B having a second cross-sectional area "A2".
  • the second plug element 120B is coupled to the first plug element 120A through a coupling rod 120C.
  • a cross-sectional area "A3" of the coupling rod 120C is smaller than the first cross-sectional area "A1" and the second cross-sectional area "A2".
  • the first cross-sectional area "A1" may be smaller than the second cross-sectional area "A2". In some embodiments, the first cross-sectional area "A 1 " may be equal to the second cross-sectional area "A2".
  • the flexibility with the dimensions or the cross-sections "A1, A2" of the first plug element 120A and the second plug element 120B respectively may in general serve to plug in the pipes or the adapters of different known dimensions without fear of leakage of water and loss in pressure especially in the pressure side "P2" of the pump assembly 100.
EP23154893.4A 2022-03-03 2023-02-03 Pumpenanordnung umfassend eine ablassschraube Pending EP4239203A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22159878 2022-03-03

Publications (1)

Publication Number Publication Date
EP4239203A1 true EP4239203A1 (de) 2023-09-06

Family

ID=80625238

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23154893.4A Pending EP4239203A1 (de) 2022-03-03 2023-02-03 Pumpenanordnung umfassend eine ablassschraube

Country Status (2)

Country Link
EP (1) EP4239203A1 (de)
CN (2) CN219412879U (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3319928A (en) * 1966-07-25 1967-05-16 Noel M Anderson Drain back valve
DE19923350A1 (de) * 1998-10-07 2000-04-13 Gardena Kress & Kastner Gmbh Flüssigkeitspumpenanordnung, insbesondere für die Verwendung in Haus und/oder Garten
DE10241478A1 (de) * 2002-09-07 2004-03-25 Daimlerchrysler Ag Integration der Wasserablassschraube in die Wasserpumpe
CN2826032Y (zh) 2005-08-10 2006-10-11 杭州南方特种泵业有限公司 泵用排水阀结构
WO2019123504A1 (en) * 2017-12-19 2019-06-27 Dgflow S.R.L. Pumping assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3319928A (en) * 1966-07-25 1967-05-16 Noel M Anderson Drain back valve
DE19923350A1 (de) * 1998-10-07 2000-04-13 Gardena Kress & Kastner Gmbh Flüssigkeitspumpenanordnung, insbesondere für die Verwendung in Haus und/oder Garten
DE10241478A1 (de) * 2002-09-07 2004-03-25 Daimlerchrysler Ag Integration der Wasserablassschraube in die Wasserpumpe
CN2826032Y (zh) 2005-08-10 2006-10-11 杭州南方特种泵业有限公司 泵用排水阀结构
WO2019123504A1 (en) * 2017-12-19 2019-06-27 Dgflow S.R.L. Pumping assembly

Also Published As

Publication number Publication date
CN116696758A (zh) 2023-09-05
CN219412879U (zh) 2023-07-25

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