EP1183984A2 - Ventil für eine Geschirrspülmaschine mit einem beweglich angeordneten Verschliesselement - Google Patents
Ventil für eine Geschirrspülmaschine mit einem beweglich angeordneten Verschliesselement Download PDFInfo
- Publication number
- EP1183984A2 EP1183984A2 EP01113591A EP01113591A EP1183984A2 EP 1183984 A2 EP1183984 A2 EP 1183984A2 EP 01113591 A EP01113591 A EP 01113591A EP 01113591 A EP01113591 A EP 01113591A EP 1183984 A2 EP1183984 A2 EP 1183984A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- outlet
- liquid
- valve
- cavity
- inlet side
- 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.)
- Withdrawn
Links
- 239000007788 liquid Substances 0.000 claims abstract description 65
- 238000005406 washing Methods 0.000 abstract description 7
- 239000007921 spray Substances 0.000 description 19
- 238000011010 flushing procedure Methods 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000012530 fluid Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 3
- 238000013021 overheating Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4219—Water recirculation
- A47L15/4221—Arrangements for redirection of washing water, e.g. water diverters to selectively supply the spray arms
Definitions
- the invention relates to a dishwasher with a arranged in a cavity of the valve body, movable Closing element with a liquid outlet is lockable.
- valve body encloses a cavity in which a movably arranged Valve ball is included.
- the inlet side of the valve is with the circulation pump and the outlet side either only with a spray arm in the upper area of a wash cabinet or only with connected to a spray arm in the lower area of the wash cabinet.
- the valve ball takes one Rest position in the cavity, in which they pass through a Actuator can be fixed so that despite flow begins the valve ball in the rest position is held.
- Actuator By releasing the actuator the valve ball is carried away by the liquid flow and pressed against the spout so that it is complete is closed.
- Rinse liquid supply to one of the two spray arms be interrupted so that the rinsing liquid is optional is fed to either the upper or lower spray arm.
- EP 0 237 994 B1 also discloses a reversing valve, in which a sphere is enclosed in a cavity.
- the cavity is connected on the inlet side to a circulation pump and on the output side through a first outlet with a first Line to a lower spray arm and through a second Outlet with a second line to an upper spray arm connected.
- the Valve ball in a rest position, from which it moves after Turning on the pump to the second outlet is raised and closes this except for a leakage current.
- the valve ball is switched off by the backflowing liquid from the second line from the second Outlet pushed away towards the first outlet.
- the Valve ball stays near the first outlet for so long the liquid flows out of the second line.
- Dishwasher In the valve arrangements described above in one Dishwasher is used to save washing liquid or optionally to increase the washing efficiency Rinse liquid supply to the lower or upper spray arm interrupted or only a small amount of liquid passed the respective liquid line.
- Rinse liquid supply to the lower or upper spray arm interrupted or only a small amount of liquid passed the respective liquid line.
- many dishwashers with a water heater in the supply line between the circulation pump and the upper one Spray arm equipped. With such Dishwashing liquid circulation through the The line to the upper spray arm is interrupted, so the Instantaneous water heater can be damaged by overheating. moreover it is not possible to operate only the lower spray arm, e.g. solely through the low leakage fluid flow through the bypass to heat the flushing liquid.
- the object of the invention is a valve to propose for a dishwasher on which simple way through a sufficient amount of case drain an outlet closed by a closing element is guaranteed.
- a closing element is regularly one in the cavity movably arranged flap which is foldable to the outlet and can be folded away from this, a cylinder that can roll within the cavity, and preferably one Ball, for example, guided by running edges inside of the cavity driven back and forth by the liquid can roll.
- the lead can be integrally formed with the valve body or is retrofitted, e.g. as a nose on one Clamping ring on the inlet side of the outlet is insertable.
- the Limiting surface of the case drain flow predominantly of the gap between the closing element and the Outlet limited, while the projection itself the The case drain flow is only minimally limited. This changes itself when dirt particles are deposited on the ledge the cross section of the gap and thus the Leakage amount hardly.
- narrow ones Bypass passages e.g. as a separate tube or as a groove are formed, the protrusion with the maximum Amount of liquid washed around when the closing element is not rests on the outlet. This will remove dirt particles that are at the ledge or at the gap, due to the increased liquid flow slightly when open washed away again and there is a self-cleaning effect on. As a result, a defined one becomes reproducible Leakage amount through the gap at the outlet passed through.
- the provision of the projection changes the External dimensions of the valve are not, so that unchanged Installation space dimensions of the valve for easy adjustment existing dishwashers can be done.
- another is (in the following: second) outlet provided, another one (hereinafter: second) line connects to the cavity, and where the liquid column in the (hereinafter: first) liquid line above the liquid column in the second liquid line can stand when the circulation pump is in operation.
- the outlet becomes a reproducible, defined case drain flow into the second liquid line achieved.
- Instantaneous water heater overheating of the instantaneous water heater prevents or the heated liquid in the wash cabinet fed.
- the projection By forming the projection as a web in the direction of flow If the outlet is open, the flowing flow will not swirled so that the flow resistance through the Projection is minimally impaired.
- the above configuration of the projections can be used for one Outlet of the valve or if there are several outlets of the valve be provided.
- Fig. 1 shows schematically the rinsing liquid circuit a dishwasher.
- a wash cabinet 1 In a wash cabinet 1 are a Upper spray arm 2 and a lower spray arm 3 arranged, the the dishes in the crockery baskets 4 with washing liquid apply.
- a dishwasher sump 5 of the wash cabinet 1 the sprayed rinsing liquid is collected and over a Line fed to a circulation pump 6.
- a changeover valve 8 Over a Connection line 7 is the rinsing liquid from the Circulation pump 6 a changeover valve 8 with two Switch positions supplied. From the switching valve 8 Flushing liquid either through a first flushing line 9 upper spray arm 2 supplied or by a second Flushing line 10 the lower spray arm 3.
- the first Flushing line 9 In the first Flushing line 9 is a water heater 11 for heating the Rinsing liquid arranged.
- a valve body 12 of the changeover valve 8 encloses one Cavity 13 in which a ball 14 is movable as a switching element is arranged.
- the ball 14 rests without liquid flow at the position labeled A, and moves to the Switch on the circulation pump 6 to position B, at which it a first outlet 15 of the changeover valve 8 to the first Flush line 9 closes. In this position B flows Flush liquid through a second outlet 16 and the second Flushing line 10 to the lower spray arm 3.
- the changeover valve 8 becomes the first flushing line 9 when the circulation pump is operating kept constantly filled with rinsing liquid so that from this always flows back a specified rinsing liquid, even if the ball 14 closes the first outlet 15.
- a flows on the ball 14 in position B. defined amount of case drain past by the first Outlet 15 into the first flushing line 9, so that a defined, low flushing fluid flow through the first flushing line 9 is maintained.
- Fig. 2A shows a plan view of the first outlet 15 from Cavity 13 of the switching valve 8 seen from.
- At the Inner surface of the first outlet 15 are four webs at 90 ° 17 arranged within the outlet in Flow direction and on the inlet side of the first outlet 15 with the inside of the valve body 12 finish flush.
- the position of the ball 14 in the case of The first outlet 15 is closed by a dashed circle.
- FIG. 2B shows a partial section of a longitudinal section the switching valve along the line DE shown in Fig. 2A.
- the ball shown with a solid line shows the Ball 14 in contact with the webs 17, while the means Dashed line represented sphere the creation of the sphere shows that would result without the webs.
- Ball shown in dashed lines becomes the first outlet 15 completely closed without any Case drain flow flows through the outlet.
- the ratio of the diameter of the ball 14 to the diameter the first outlet 15 is chosen so that the ball at At the first outlet 15 partially in the outlet protrudes.
- Through the webs running in the first outlet 15 17 becomes the depth of penetration of the ball 14 into the outlet 15 limited so that the ball 14 is no longer complete along the circumference of the entry side of the first outlet but there is a gap between the webs 17 the ball 14 and the entry side of the first outlet 15 remains open.
- This leakage fluid flow is however compared to the one flowing in the open state Flushing liquid amount through the first outlet 15 strong reduced.
- the webs 17 when the first is open Outlet 15 (position C of the ball 14 in Fig. 1) from the the entire flushing liquid flow.
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Lift Valve (AREA)
- Washing And Drying Of Tableware (AREA)
- Taps Or Cocks (AREA)
Abstract
Description
- Fig. 1
- eine schematische Darstellung einer Geschirrspülmaschine mit einem im Spülflüssigkeitskreislauf angeordneten Umschaltventil,
- Fig. 2A
- eine schematische Draufsicht auf die Eintrittsseite eines Auslasses des Ventils von Fig. 1 und
- Fig. 2B
- eine schematische Querschnittsansicht der Stellung einer Ventilkugel vor der Eintrittsseite des Auslasses von Fig. 2A.
- 1:
- Spülraum
- 2:
- oberer Sprüharm
- 3:
- unterer Sprüharm
- 4:
- Geschirrkorb
- 5:
- Spülmaschinensumpf
- 6:
- Umwälzpumpe
- 7:
- Verbindungsleitung
- 8:
- Umschaltventil
- 9:
- erste Spülleitung
- 10:
- zweite Spülleitung
- 11:
- Durchlauferhitzer
- 12:
- Ventilkörper
- 13:
- Hohlraum
- 14:
- Kugel
- 15:
- erster Auslaß
- 16:
- zweiter Auslaß
- 17:
- Steg
Claims (8)
- Ventil für eine Geschirrspülmaschine mitdadurch gekennzeichnet, daß an der Eintrittsseite des Auslasses (15) zumindest ein Vorsprung (17) angeordnet ist, so daß beim Anliegen des Verschließelements (8) am Auslaß (15) ein Spalt zwischen der Eintrittsseite des Auslasses (15) und dem Verschließelement (8) ausgebildet wird.einem Ventilkörper (12),einem Hohlraum (13), der in dem Ventilkörper (12) angeordnet ist,einem Einlaß für den Zulauf einer Flüssigkeit in den Hohlraum (13),zumindest einem Auslaß (15), der eine Flüssigkeitsleitung (9) mit dem Hohlraum (13) verbindet,einem im Hohlraum (13) beweglich gelagerten Verschließelement (8), durch das mindestens der eine Auslaß (15) sperrbar ist,
- Ventil nach Anspruch 1, gekennzeichnet durch einen weiteren Auslaß (16), der eine weitere Flüssigkeitsleitung (10) mit dem Hohlraum (13) verbindet, wobeidie in der Flüssigkeitsleitung (9) anstehende Flüssigkeitssäule über die Flüssigkeitssäule in der weiteren. Flüssigkeitsleitung (10) ansteigen kann, unddurch das Verschließelement (8) in Abhängigkeit der Flüssigkeitsströmung im Hohlraum (13) der weitere Auslaß (16) sperrbar ist.
- Ventil nach Anspruch 2, dadurch gekennzeichnet, daß an der Eintrittsseite des weiteren Auslasses (16) zumindest ein Vorsprung angeordnet ist, so daß beim Anliegen des Verschließelements (8) am weiteren Auslaß (16) ein Spalt zwischen der Eintrittsseite des weiteren Auslasses (16) und dem Verschließelement (8) ausgebildet wird.
- Ventil nach Anspruch 1, gekennzeichnet durch einen weiteren Auslaß (16), der eine weitere Flüssigkeitsleitung (10) mit dem Hohlraum (13) verbindet, wobeidurch das Verschließelement (8) in Abhängigkeit der Flüssigkeitsströmung im Hohlraum (13) der weitere Auslaß (16) sperrbar 'ist undan der Eintrittsseite des weiteren Auslasses (16) zumindest ein Vorsprung angeordnet ist, so daß beim Anliegen des Verschließelements (8) am weiteren Auslaß (16) ein Spalt zwischen der Eintrittsseite des weiteren Auslasses (16) und dem Verschließelement (8) ausgebildet wird.
- Ventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Vorsprung (17) an der Innenseite der Eintrittsseite des oder der Auslässe (15, 16) stegförmig in Strömungsrichtung ausgebildet ist.
- Ventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zumindest drei Vorsprünge (17) am Umfang der Eintrittsseite ausgebildet sind, so daß das Verschließelement (8) beim Sperren des oder der Auslässe (15, 16) vollständig auf den Vorsprüngen (17) aufliegt.
- Verteilerventil nach Anspruch 6, dadurch gekennzeichnet, daß die Vorsprünge (17) das Verschließelement (8) mittig vor der Eintrittsseite des oder der Auslässe (15, 16) halten.
- Verteilerventil nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die Vorsprünge (17) im Bereich der Eintrittsseite des oder der Auslässe (15, 16) symmetrisch angeordnet sind.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2000142785 DE10042785A1 (de) | 2000-08-31 | 2000-08-31 | Ventil für eine Geschirrspülmaschine mit einem beweglich angeordneten Verschliesselement |
| DE10042785 | 2000-08-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1183984A2 true EP1183984A2 (de) | 2002-03-06 |
| EP1183984A3 EP1183984A3 (de) | 2002-10-30 |
Family
ID=7654430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01113591A Withdrawn EP1183984A3 (de) | 2000-08-31 | 2001-06-15 | Ventil für eine Geschirrspülmaschine mit einem beweglich angeordneten Verschliesselement |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1183984A3 (de) |
| DE (1) | DE10042785A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109288479A (zh) * | 2018-12-12 | 2019-02-01 | 杭州老板电器股份有限公司 | 内胆结构及洗碗机 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1191526B (it) * | 1986-03-19 | 1988-03-23 | Zanussi Elettrodomestici | Macchina lavatrice con valvola di distribuzione del flusso di un liquido |
| DE9314210U1 (de) * | 1993-09-21 | 1993-12-09 | Basf Magnetics Gmbh, 68165 Mannheim | Rückschlagventil |
| DE4404369C2 (de) * | 1994-02-11 | 1997-04-30 | Miele & Cie | Zulaufventil für den Sprüharm einer Geschirrspülmaschine |
| US5899433A (en) * | 1996-03-16 | 1999-05-04 | Lg Electronics | Washing water supply control apparatus for dish washing machine |
-
2000
- 2000-08-31 DE DE2000142785 patent/DE10042785A1/de not_active Withdrawn
-
2001
- 2001-06-15 EP EP01113591A patent/EP1183984A3/de not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109288479A (zh) * | 2018-12-12 | 2019-02-01 | 杭州老板电器股份有限公司 | 内胆结构及洗碗机 |
| CN109288479B (zh) * | 2018-12-12 | 2024-03-22 | 杭州老板电器股份有限公司 | 内胆结构及洗碗机 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1183984A3 (de) | 2002-10-30 |
| DE10042785A1 (de) | 2002-03-14 |
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| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: ECKERT, HOLGER Inventor name: WOLFGANG SCHMIDT Inventor name: ROESCH, JUERGEN |
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| RIC1 | Information provided on ipc code assigned before grant |
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| 17P | Request for examination filed |
Effective date: 20021023 |
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| AKX | Designation fees paid |
Designated state(s): DE FR GB IT |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20090101 |