EP0467282A1 - Dispositif pour la purge automatique d'air d'une chambre de refroidissement - Google Patents

Dispositif pour la purge automatique d'air d'une chambre de refroidissement Download PDF

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Publication number
EP0467282A1
EP0467282A1 EP91111831A EP91111831A EP0467282A1 EP 0467282 A1 EP0467282 A1 EP 0467282A1 EP 91111831 A EP91111831 A EP 91111831A EP 91111831 A EP91111831 A EP 91111831A EP 0467282 A1 EP0467282 A1 EP 0467282A1
Authority
EP
European Patent Office
Prior art keywords
coolant
pipe
ventilation
valve
ball
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.)
Ceased
Application number
EP91111831A
Other languages
German (de)
English (en)
Inventor
Günter Krämer
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.)
ABS Pumpen AG
Original Assignee
ABS Pumpen AG
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 ABS Pumpen AG filed Critical ABS Pumpen AG
Publication of EP0467282A1 publication Critical patent/EP0467282A1/fr
Ceased 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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • 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
    • F05D2260/605—Venting into the ambient atmosphere or the like

Definitions

  • the invention relates to a device for the automatic venting of a liquid-cooled, closed cooling chamber with a coolant inlet and return, preferably for engine cooling of a dirty water pump, by means of a vent pipe passing through the cooling chamber from top to bottom, the coolant preferably being taken from the medium conveyed by the pump and flows back into this.
  • a high efficiency of a cooling chamber which surrounds a motor in the form of a jacket, in particular, depends on the fact that the interior of the cooling chamber, through which a coolant flows, is vented as well as possible.
  • the flow conditions in the coolant circuit deteriorate due to air or gas bubbles in the interior of the cooling space, and gases also have poor thermal conductivity and do not contribute to cooling the engine.
  • cooling chambers are therefore vented.
  • a particularly simple way of venting is given by installing a vent pipe in the cooling chamber, which extends from the upper end of the closed cooling chamber to the lower end. Since the existing air collects in the upper area of the cooling chamber when the coolant penetrates, it is guided by the pressure of the coolant through the ventilation pipe, at the lower end of which it can escape.
  • the pumping medium of the pump e.g. Water
  • the pumped medium pushes the pumped medium out of the pump chamber into the cooling chamber and flows back into the pump chamber through a coolant return.
  • the invention has for its object to prevent clogging of the ventilation pipe by dirt particles or the like and to ensure optimal ventilation.
  • This object is achieved by a valve which automatically closes the upper end of the vent pipe under the action of coolant flowing into the vent pipe, the valve opening for venting when the coolant level drops below the upper end of the vent pipe.
  • the valve according to the invention opens and closes depending on the level of the coolant in the cooling chamber. As soon as the coolant has reached the upper end of the ventilation pipe, the ventilation process is completed and the valve closes the upper end of the ventilation pipe under the suction effect of coolant flowing into the ventilation pipe. In this way, the ventilation pipe is closed, so that coolant can no longer pass through the ventilation pipe and thus no clogging by dirt particles or the like is possible.
  • the cooling chamber is completely filled with coolant, so that the valve is always in its closed position.
  • the valve opens automatically and releases the upper end of the ventilation pipe, so that the cooling chamber can be completely vented when the pump is started up later.
  • the automatically operating valve is conveniently located at the highest point of the cooling chamber, since this is the only way to ensure that the ventilation is as complete as possible.
  • the automatically operating valve has the lowest possible overall height.
  • This requirement is e.g. fulfilled by a ball which is provided with at least one elastic holding arm which is fixed to the ventilation pipe and holds the valve ball in a position above the ventilation pipe.
  • the outer diameter of the ball is expediently larger than the inner diameter of the vent pipe, so that the ball can sit sealingly on the vent pipe.
  • the balls or the holding arms can consist of an elastic, rubber-like material, so that the manufacture of the valve is inexpensive. It has proven to be particularly advantageous to fix the ball to the vent pipe with two elastic holding arms.
  • the ball can be centered exactly over the ventilation pipe, the elasticity of the holding arms being selected such that the valve ball is pressed onto the pipe end by the suction effect of coolant flowing into the ventilation pipe, but on the other hand the elasticity of the holding arms is sufficiently large to allow for the Raise the ball into a position over the end of the vent pipe if the suction effect diminishes as the coolant level drops.
  • Another advantageous possibility for fixing the holding arms to the vent pipe can be done in that the ends of the holding arms have thickened portions that can be inserted into bores in the vent pipe. The thickening prevents the holding arms from slipping out, so that the valve operates safely.
  • valve ball with the holding arms is preferably formed in one piece, so that the overall production is relatively inexpensive.
  • valve according to the invention which works approximately like a snorkel head valve
  • a valve of a different type can also be used to shut off the ventilation tube, for example a three-way valve which can be plugged onto the ventilation tube and has an inner sealing ball, which blocks the ventilation tube when the cooling chamber is completely full.
  • Other valve types are also possible, but it should be noted that their height should be as low as possible.
  • the pump 1 shown in FIG. 1 is driven by a motor 2.
  • the engine 2 has a jacket-shaped cooling chamber 3, which has a coolant inlet 4 and a coolant return 5 at the lower end.
  • the coolant 6 is conveyed back into the pump chamber 7 via the coolant return 5, which is shown in detail in FIG. 1.
  • a ventilation pipe 8 Inside the cooling chamber 3 extends from its upper end downwards, a ventilation pipe 8, the upper end 9 of which can be closed automatically by a spherical valve 10 as soon as the level of the coolant 6 reaches the upper end 9 of the ventilation pipe.
  • the spherical valve 10 is also shown in FIG. 1 in a detailed drawing.
  • the ball 10 is fastened to the upper end 9 of the ventilation pipe 8 with elastic holding arms 11, which have thickenings 12 at their ends.
  • the thickened ends of the holding arms 11 sit in holes 13 so that they are secured against slipping out.
  • the elasticity of the holding arms 11 for the ball 10 is selected such that the ball 10 is pressed onto the upper end 9 of the ventilation pipe 8 by the suction effect of coolant 6, which penetrates into the ventilation pipe 8, and the ball 10 is in a position above that Upper end 9 of the vent pipe 8 is raised as soon as the level of the coolant 6 drops below the upper end 9 of the vent pipe 8.
  • FIGS. 2 to 5 show alternative exemplary embodiments of the ball valve which works like a snorkel head valve.
  • Fig. 2 corresponds to that of Fig. 1, in the valve shown in Fig. 3, the ends of the elastic holding arms 11 are connected to a sleeve-shaped tube piece 14 which can be pushed onto the upper end 9 of the vent pipe 8. This enables particularly simple assembly.
  • the ball 10 is seated only on an elastic holding arm 11, which is attached at its end to a likewise tubular tube piece 14, which can be inserted into the upper end 9 of the ventilation tube 8.
  • the elastic holding arms 11 have a non-slip coating 15, so that the ends of the holding arms 11 can be simply pushed over the outer wall of the vent pipe 8 without the risk of the valve shifting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Check Valves (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP91111831A 1990-07-16 1991-07-15 Dispositif pour la purge automatique d'air d'une chambre de refroidissement Ceased EP0467282A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4022610A DE4022610A1 (de) 1990-07-16 1990-07-16 Vorrichtung zur selbsttaetigen entlueftung einer kuehlkammer
DE4022610 1990-07-16

Publications (1)

Publication Number Publication Date
EP0467282A1 true EP0467282A1 (fr) 1992-01-22

Family

ID=6410389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91111831A Ceased EP0467282A1 (fr) 1990-07-16 1991-07-15 Dispositif pour la purge automatique d'air d'une chambre de refroidissement

Country Status (2)

Country Link
EP (1) EP0467282A1 (fr)
DE (1) DE4022610A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0615070A1 (fr) * 1993-03-10 1994-09-14 T. Smedegaard A/S Installation avec unité de pompage pour la circulation d'un liquide chaud
EP0629780A1 (fr) * 1993-06-14 1994-12-21 WILO GmbH Pompe submersible
DE4430764A1 (de) * 1994-08-30 1996-03-07 Klein Schanzlin & Becker Ag Kühleinrichtung
US5930852A (en) * 1997-03-21 1999-08-03 Aqua-Flo, Incorporated Heat exchanging pump motor for usage within a recirculating water system
CN105526178A (zh) * 2014-09-29 2016-04-27 上海海拉电子有限公司 一种前照灯或车窗玻璃清洗装置用电动泵

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19617425C2 (de) * 1996-05-01 1998-03-19 Spechtenhauser Pumpen Gmbh Abwasser- und Fäkalienpumpe mit einem Antriebsmotor und einer Pumpeneinrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1139319A (fr) * 1900-01-01
US3371613A (en) * 1965-04-30 1968-03-05 Stenberg Flygt Ab Sewage pump or the like
DE1900233A1 (de) * 1969-01-03 1970-07-30 Ewald Burger Tauchpumpenaggregat
US4013053A (en) * 1975-05-02 1977-03-22 Stewart-Warner Corporation Fuel pump
DE8804263U1 (fr) * 1988-03-29 1989-07-27 Reich Gmbh Regel- Und Sicherheitstechnik, 6345 Eschenburg, De

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1139319A (fr) * 1900-01-01
US3371613A (en) * 1965-04-30 1968-03-05 Stenberg Flygt Ab Sewage pump or the like
DE1900233A1 (de) * 1969-01-03 1970-07-30 Ewald Burger Tauchpumpenaggregat
US4013053A (en) * 1975-05-02 1977-03-22 Stewart-Warner Corporation Fuel pump
DE8804263U1 (fr) * 1988-03-29 1989-07-27 Reich Gmbh Regel- Und Sicherheitstechnik, 6345 Eschenburg, De

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0615070A1 (fr) * 1993-03-10 1994-09-14 T. Smedegaard A/S Installation avec unité de pompage pour la circulation d'un liquide chaud
EP0629780A1 (fr) * 1993-06-14 1994-12-21 WILO GmbH Pompe submersible
US5480290A (en) * 1993-06-14 1996-01-02 Wilo Gmbh Submersible motor-driven pump
DE4430764A1 (de) * 1994-08-30 1996-03-07 Klein Schanzlin & Becker Ag Kühleinrichtung
US5930852A (en) * 1997-03-21 1999-08-03 Aqua-Flo, Incorporated Heat exchanging pump motor for usage within a recirculating water system
CN105526178A (zh) * 2014-09-29 2016-04-27 上海海拉电子有限公司 一种前照灯或车窗玻璃清洗装置用电动泵

Also Published As

Publication number Publication date
DE4022610A1 (de) 1992-01-23

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