WO2022008562A1 - Système de circulation de fluide notamment destiné à être utilisé dans un dispositif de lavage - Google Patents

Système de circulation de fluide notamment destiné à être utilisé dans un dispositif de lavage Download PDF

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Publication number
WO2022008562A1
WO2022008562A1 PCT/EP2021/068755 EP2021068755W WO2022008562A1 WO 2022008562 A1 WO2022008562 A1 WO 2022008562A1 EP 2021068755 W EP2021068755 W EP 2021068755W WO 2022008562 A1 WO2022008562 A1 WO 2022008562A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
sealing element
bearing
bearing part
fluid system
Prior art date
Application number
PCT/EP2021/068755
Other languages
German (de)
English (en)
Inventor
Bruno Gaus
Jürgen Heppner
Original Assignee
Meiko Maschinenbau Gmbh & Co. Kg
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 Meiko Maschinenbau Gmbh & Co. Kg filed Critical Meiko Maschinenbau Gmbh & Co. Kg
Priority to EP21743090.9A priority Critical patent/EP4178407A1/fr
Publication of WO2022008562A1 publication Critical patent/WO2022008562A1/fr

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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
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices
    • A47L15/23—Rotary spraying devices moved by means of the sprays
    • 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
    • A47L15/4278—Nozzles
    • A47L15/428—Rotary nozzles

Definitions

  • Fluid system in particular for use in a cleaning device
  • the invention relates to a fluid system for conducting at least one fluid, a nozzle system comprising said fluid system and a cleaning device for cleaning items to be cleaned. Furthermore, the invention relates to a method for operating a fluid system and a method for cleaning items to be cleaned.
  • Devices of the type mentioned are used, for example, in water-carrying, rotating components such as are used in particular in cleaning devices.
  • the invention can be used in particular in cleaning and disinfection devices, for example in the field of care or hospital technology, or also in dishwashing technology. In principle, other areas of application are also conceivable.
  • cleaning devices also known as cleaning devices, which can clean and/or disinfect items to be cleaned are known from the prior art. Overall, the design of these cleaning devices depends heavily on the various boundary conditions, such as the type of cleaning material to be cleaned, the contamination, the throughput or similar conditions. By way of example, reference can be made to cleaning devices which are described, for example, in DE 102004 056 052 A1 or in DE 102007 025 263 A1.
  • Cleaning devices of the type mentioned usually have at least one loading device for loading the items to be cleaned with at least one cleaning fluid.
  • the application device can have moving components have in order to optimally apply the cleaning fluid to the items to be cleaned.
  • Rotating nozzles can be mentioned as an example here.
  • US Pat. No. 5,044,672 A describes a metal-sealing rotary union which can be used particularly in connection with subsea well completion systems to pivotally connect the subsea wellhead to a run pipe, the rotary union having an annular sealing element with metal sealing surfaces and inner and outer tubular members che also have metallic sealing surfaces and which can be inserted or extended with their sealing surface sealing engagement of the sealing element.
  • US Pat. No. 2,983,452 A describes a rotating spray device which can be used in particular in devices for using cleaning liquids at high pressures and temperatures.
  • US 2006/0054716 A1 describes a rotatable sprinkler comprising a rotatable assembly which rotates about an axis of rotation and is formed with one or more pieces suitable for spraying liquid under pressure. ratios between the nozzle and the axis of rotation without changing the rotational speed of the turret arrangement.
  • the terms “have”, “have”, “comprise” or “including” or any grammatical deviations thereof are used in a non-exclusive sense. Accordingly, these terms can refer to situations in addition to the features introduced by these terms , no other M's are present, or to situations in which one or more other features are present
  • the expression “A has B”, “A has B”, “AB” or “A includes B” can refer to both refer to the situation in which there is no other element in A apart from that (i.e. to a situation in which A consists of B) as well as to the situation in which, in addition to B, there are one or more elements in A are present, such as item C, items C, and even more items.
  • a fluid system for guiding at least one fluid comprises at least one fluid-carrying bearing part that extends axially along a longitudinal axis and at least one fluid of the rotary part that is mounted on the bearing part such that it can rotate about the longitudinal axis.
  • the bearing part and the rotary part are connected to one another via at least one fluid connection.
  • At least one axially displaceably mounted sealing element is arranged between the bearing part and the rotary part, the sealing element surrounding the part in an annular manner.
  • the sealing element is arranged between the fluid connection and a bearing surface of the fluid system associated with the sealing element.
  • the sealing element has at least one hydraulic inner surface, which can be acted upon by the fluid and faces the fluid.
  • a hydraulic pressure can be applied to the sealing element in the direction of the bearing surface assigned to the sealing element.
  • the sealing element is designed in several parts and has at least one sliding ring, which encloses the I and is mounted in an axially displaceable manner, and at least one sealing element. The additional sealing element seals the slide ring against another component of the fluid system.
  • fluid system as used herein is a broad term that should be given its ordinary and current meaning as understood by those skilled in the art. The term is not limited to a special or adapted meaning. The term can refer, without limitation, in particular to any system that is set up to carry at least one fluid, in particular to direct and/or distribute it.
  • fluid-fi may, without limitation, refer to any 1 or function of a component, device, or system that assists or controls directional movement of a fluid, including action selected from the group consisting of: a conduction of the fluid, a VE of the fluid, a deflection of the fluid, a control of a flow rate of the fluid, a stop or a release of a flow of the fluid, a nozzle function
  • Fluid system can in particular one or more components for have leadership de.
  • the components of the fluid system can be configured to guide the fluid through the fluid system.
  • fluid as used herein is also a broad term that should be given its ordinary and current meaning as understood by those skilled in the art. The term is not limited to any specific or adapted meaning.
  • the term may refer, without limitation, to a substance in a particular fluid, gaseous and/or liquid state.
  • the fluid can be present, for example, as a pure substance or as a mixture of substances.
  • the fluid can contain at least aqueous liquid, in particular water, and/or at least one cleaning fluid.
  • cleaning fluid is a broad term which should be given its ordinary and current meaning as understood by those skilled in the art.
  • the term is not limited to any specific or adapted meaning.
  • the term may refer, without limitation, to any liquid or gas well-established for cleaning and/or disinfecting liquids.
  • the term can, without limitation, relate in particular to liquid which, when it hits the items to be cleaned, can have a cleaning effect. Accordingly, the term “cleaning liquid” is also used in the following instead of the term “supply fluid” without restricting the use of fluid media.
  • the cleaning liquid can comprise an aqueous quality, for example water and/or water with one or more additives; fen, for example with one or more cleaning concentrates and / or Kla and/or disinfectants.
  • the cleaning fluid can in particular comprise at least cleaning fluid selected from the group consisting of: an aqueous cleaning fluid; a cleaning fluid with at least one cleaning solution; a cleaning fluid with at least one rinse aid; a cleaning fluid with at least one disinfectant; a post-rinse fluid; demineralized water; a heated treatment fluid, in particular a cleaning fluid heated to a temperature of 30°C to 70°C and preferably 60°C.
  • other types of cleaning agents or other fluids can also be used.
  • bearing part is a broad term that should be given its ordinary and ordinary meaning as understood by those skilled in the art. The term is not limited to any specific or adapted meaning. This can, without limitation, relate in particular to any element, e.g. a fluid-carrying element that is set up to mechanically guide and/or support at least one other part that is movable re this element, in particular the bearing part can be set up for this To limit the movement of the other part that is movable relative to the I to at least one direction of movement, for example the bearing part can allow the other, movable part to rotate
  • the bearing part extends axially with respect to a longitudinal axis.
  • This axis of longitudinal extension can coincide with a rotation axis which rotates the rotating part.
  • the bearing part can extend at least in sections along this axis of longitudinal extension, so that the bearing part can be configured straight and elongated at least in section.
  • the I can in particular be configured straight at least in sections and in particular rotationally symmetrically with the axis of longitudinal extension.
  • the bearing part also has other sections which, for example, do not extend along the longitudinal axis and/or that the bearing part also has sections that are not rotationally symmetrical.
  • the I can be straight and rotationally symmetrical about the axis of longitudinal extent
  • the bearing part is designed as a fluid-carrying bearing part.
  • the bearing part E can have at least one hollow body.
  • the bearing part can be set up, in particular by hollow bodies, to guide the fluid.
  • the hollow body can, for example, be constructed in a cylindrical manner, at least in sections. Other forms of the body are also possible.
  • the term "turned part” is a broad term that should be given its ordinary and common meaning, as understood by those skilled in the art. The term is not limited to any specific or adapted meaning. This can, without limitation, refer generally to a rotatably mounted i in particular.
  • the rotary part can in particular be a rotary movement or a movement i at least one rotary component about the longitudinal axis of the bearing part vol, for example a rotation.
  • the axis of rotation of the rotary part can coincide with the axis of extension of the bearing part, in particular with the cylinder axis.
  • the rotary part can in particular be designed symmetrically, for example rotationally. However, a non-symmetrical configuration is also fundamentally possible
  • the rotary part is designed as a fluid-carrying rotary part.
  • the rotary part can also have at least one hollow body, for example: a hollow body, for example, which has a housing and an interior space, the hollow body being arranged in a ring around an interior space, for example. And( designs are also possible.
  • the rotating part is mounted on the bearing part.
  • the bearing part can provide a mechanical bearing for the rotary part or a movement of the rotary part, which limits the degrees of freedom of the movement of the rotary part, in particular a rotary movement about the axis of longitudinal extent.
  • the bearing part and the rotary part are fluidically connected to one another via at least one fluid.
  • the term "fluid connection” as used herein is a broad term which is to be given its ordinary and current meaning as understood by those skilled in the art. The term is not limited to an immediate or customary meaning. The term can, without limitation, relate in particular to an arrangement which enables an exchange of fluids between two fluid-carrying elements.
  • the fluid connection can in particular be a fluid connection between two or more components of the fluid system, in the present case in particular between the rotating part and the bearing part. 1
  • the connection can comprise, for example, one or more channels and/or two or m corresponding openings in the elements to be fluidically connected to one another.
  • the sealing element is arranged between the fluid connection and at least one bearing surface assigned to the sealing element.
  • at least one bearing surface can be provided on one of the fluid connections, with the seal being arranged between the fluid connection and this bearing surface.
  • at least one sealing surface can also be provided on both sides of the fluid connection, with sealing elements being provided on both sides and interacting with at least one bearing surface assigned to this sealing element
  • the term "storage area” is a broad term that is to be given its ordinary and ordinary meaning as understood by those skilled in the art and is not limited to any specific or adapted meaning.
  • the term refers in particular, without limitation, to a surface which can serve as a bearing for movement of another element, for example for rotary and/or sliding movement. In the present case, it can in particular be a storage area.
  • the element can be in direct contact with the sliding surface, in particular in sliding contact, or there can be a gap between the surface and the element, which can be filled with fluid, for example, to promote the sliding movement.
  • the bearing surface can in each case be a component of at least one bearing element, which in turn can be a component of another element, for example as explained in more detail below.
  • the at least one surface can be a part or all of the rotating part and/or the L ⁇ . Configurations in which both the rotating part and the bearing part provide a partial surface of the bearing surface are also possible.
  • the bearing surface assigned to the sealing element can thus in particular be formed by at least one element selected from the group consisting of: the rotating part; the bearing part; an element connected to the rotating part; an element connected to the bearing part, in particular a projection of the bearing part, particularly an annular projection of the bearing part.
  • the fluid system can have at least one further bearing surface.
  • at least one further bearing surface can be provided, which is assigned to the rotary part.
  • the at least one sealing element can interact with the at least one bearing surface assigned to the sealing element, and the three of the at least one optional further bearing surface assigned to the rotary part, the rotary part
  • the associated additional bearing surface can be formed, for example, by a gerteil or by at least one element connected to the bearing part, such as a projection of the bearing part, in particular a circumferential, annular jump of the bearing part.
  • the rotating part can generally be directed in particular in order to rotate on the additional bearing surface assigned to the rotating part. In particular, the rotating part can be guided between the bearing assigned to the sealing element and the additional bearing surface assigned to the rotating part.
  • the bearing part can have at least two bearing elements, each with a bearing surface, the bearing surfaces being spaced apart axially from one another.
  • the rotating part can be guided or also embedded between the at least two axially defined bearing surfaces of the bearing part.
  • the bearing surfaces can be arranged essentially parallel to one another, for example essentially perpendicular to the axis of longitudinal extension.
  • At least one sealing surface can be assigned to the sealing element.
  • the at least one bearing surface can be arranged essentially perpendicularly to the axis of extension. “Essentially” can be understood in relation to angle information as an exact fulfillment of the angle information, with angle tolerances also being possible in principle, for example by no more, in particular by no more than 5°.
  • the bearing surface can be ring-shaped, for example, and is arranged concentrically to the axis of longitudinal extension, the bearing surface can each form at least one annular surface, for example, or at least one flat or curved surface, for example, the bearing surface can have a flat circular surface.
  • the surface can have a curved circular surface, for example a spherically curved circular surface.
  • the optional axial spacing of the bearing surfaces described above may be staltet Derai are that the bearing surfaces at different locations along the County j ckungsachse, wherein the rotating part between these two places the can.
  • sealing element is a broad term that should be given its ordinary and current meaning as understood by those skilled in the art. The term is not limited to any specific or adapted meaning.
  • the term can, without limitation, ; relate in particular to a one-piece or multi-piece device which is configured to completely seal off at least one opening, for example at least one gap.
  • the sealing element can be configured to completely or t prevent a fluid from entering a joint or a gap in the fluid system.
  • the sealing element can be set up to fluidly seal the fi the gap of the fluid system, so that no or only a small part of the fluid can pass into the gap or the joint.
  • the sealing element can seal joints or gaps in the fluid system that arise at connections between z ⁇ several elements in the fluid system.
  • the sealing element can be set up to seal at least one joint and/or at least one gap in the fluid between the rotating part and the bearing part.
  • the sealing element is arranged between the bearing part and the rotating part.
  • the sealing element surrounds the bearing part in an annular manner.
  • the seal can be designed as a one-piece or multi-piece ring which is movably arranged on the bearing surface of the bearing part, whereby there can be contact with the surrounding area or there can also be an annular gap between the sealing element and the bearing part.
  • the rotating part surrounds the sealing element at least partially, so that the sealing element is arranged between the rotating part and the bearing part.
  • D ⁇ telement is axially displaceable, for example in the direction of the longitudinal first axis, the sealing element for example on the peripheral surface of the bearing part: can.
  • the movement of the sealing element is limited in the axial direction, since at least one sealing element is arranged between the fluid connection and the bearing surface associated with at least one sealing element.
  • a one-piece or multi-piece sealing element can be provided on one side, between the fluid connection and the bearing surface each one-part or multi-part sealing element is provided on both sides, for example between the fluid connection and an associated bearing
  • the sealing element has at least one hydraulic inner surface that can be opened by the F and faces the fluid connection.
  • a hydraulic force can be exerted on the sealing element in the bearing surface assigned to the sealing element.
  • the term can, without B ⁇ kung, refer in particular to a one-part or multi-part surface of at least one element, here for example the sealing element, which can be subjected to a pressure of at least one fluid, so that, for example, the element is pressurized by this and the resulting pressure hydraulic power is movable. Since the hydraulic surface is also made up of several sub-surfaces on which the pressure of the fluid can act.
  • An “inner surface” can generally be understood as a one-part or multi-part surface which is assigned to at least one interior, for example in this case an interior space in an annular gap between the bearing part and the rotary part.
  • a "hydraulic inner surface” can accordingly be understood to mean a hydraulic surface which is designed as an inner surface.
  • the hydraulic inner surface can in particular face the fluid connection here so that it is acted upon by pressurized fluid via the fluid connection, whereby as a result of the pressure a force, also referred to as hydraulic force, a hydraulic inner surface is exercised.
  • a force also referred to as hydraulic force
  • the inner surface can be accessible via the fluid connection between the bearing part and the rotary part.
  • the hydraulic inner surface can thus be exposed to fluid escaping from the fluid connection, for example fluid entering the annular gap between the bearing part and the rotating part.
  • the hydraulic inner surface of the sealing element can be a flat surface or a non-flat surface, for example a stepped surface.
  • the hydraulic inner surface as explained above, can be made up of one or more parts.
  • the hydraulic inner surface can in particular be designed in the shape of a circular ring or be composed of a number of partial circular ring-shaped surfaces.
  • the sealing element is designed in several parts and has a sliding ring, which encloses the bearing part and is mounted in an axially displaceable manner, and at least one further sealing element.
  • the additional sealing element is set up to seal the barrier against at least one other component of the fluid system.
  • the term "slide ring” as used herein is a broad term that should be given its ordinary and current meaning as understood by those skilled in the art. The term is not limited to any special or adapted meaning.
  • the term can, without limitation, refer in particular to an annular element b which is slidably mounted.
  • the ring shape can be a cylindrical ring shape or another type of ring shape, for example in the form of a stepped cylinder.
  • the sliding ring can have at least a part of the above-mentioned inner hydraulic surface, which can provide fluid communication. Applying the fluid to this inner surface of the slide can lead to a force transmission to the sliding ring and correspondingly to an axial movement of the sliding ring along the axis of longitudinal extension de: partly.
  • the sliding ring can in particular be made of at least one rigid material.
  • the sliding ring can be made entirely or partially of at least one selected from the group consisting of: a plastic material, a special thermoplastic material, in particular a thermal plastic material selected from the group consisting of polytetrafluo (in particular Teflon®), polyethylene, polyamide, polypropylene, polyoxymethylene metallic material, in particular a metallic material selected from aluminum and/or stainless steel; a ceramic material.
  • the at least one further sealing element is set up to seal the sliding ring against at least one other component of the fluid system.
  • This adjacent geometry be formed in particular by an outer surface of the bearing part or by an inner surface d(partly.
  • the additional seal can seal the sliding ring against a component selected from the group consisting of: Bearing part and the rotary part, ie gene either against the bearing part or against the rotation of the other component is preferably no seal.
  • the further sealing element can be set up in such a way that the sliding ring, depending on the other component in the group consisting of the bearing part and the rotating part, is never sealed, so that fluid can flow between the sliding ring and the other component.
  • the further sealing element can in particular be configured in a way from the group consisting of: the further sealing element is connected to the sliding ring and is mounted in an axially displaceable manner together with the sliding ring; the further sealing element is connected to the bearing part, in particular received in a groove of the bearing part pointing towards the sliding ring; or the further sealing element is connected to the rotating part, in particular received in a groove of the rotating part pointing towards the sliding ring.
  • the further element can be integrated into the sliding ring or connected to it, for example on a side facing the rotating part or on a sliding ring facing the bearing part.
  • the other sealing element is integrated into the sliding ring by means of multi-component manufacturing processes, for example multi-component injection molding, or is joined to it.
  • the sliding ring can also have a groove, for example, into which the further sealing element is inserted, for example at least one sealing ring sealed against the bearing part or the rotary part.
  • another form of further sealing element can be selected which is connected to the sliding ring, for example a membrane, an X-ring or a seal or a combination of the elements mentioned.
  • the second configuration described can be realized, for example, in such a way that the bearing part has at least one i on its outside facing the sliding ring, in which the further sealing element is accommodated, for example in the form of a sealing ring sealed against the sliding ring.
  • the further sealing element can be selected, which is connected to the bearing part and seals it against the sliding ring, for example a membrane, an X-ring or a lip seal or a combination of the ge elements.
  • the third embodiment described can be realized, for example, in such a way that the rotating part has at least one groove a on its inside facing the sliding ring, in which the further sealing element is accommodated, for example in the form of a sealing ring sealing the sliding ring.
  • the further sealing element can be selected, which rotary part is connected and seals it against the sliding ring, for example a membrane, an X-ring or a lip seal or a combination of the mentioned elements.
  • the further sealing element can therefore move axially together with the sliding ring or, alternatively, can also be connected to the bearing part or the rotary part i not move axially or to a lesser extent.
  • the ski can slide axially in the further sealing element.
  • the further sealing element can be designed in such a way that only parts of it move, for example parts of a membrane.
  • the at least one further sealing element can in particular be configured in whole or in part or in a deformable manner.
  • the at least one further element can have at least one element selected from the group consisting of: O-ring; a membrane; an X ring; a lip seal.
  • the at least e tere sealing element can be produced entirely or partially from at least one deformable IN, in particular at least one elastic material.
  • the at least one other sealing element in whole or in part from at least!
  • NBR acrylonitrile butadiene rubber
  • FKM fluoro rubber
  • VMQ ethylene propylene diene rubber
  • EPDM ethylene propylene diene rubber
  • FFKM perfluoro rubber
  • FVMQ fluorosilicone rubber
  • TFE acrylate rubber
  • ACM acrylate rubber
  • CR chloroprene
  • the hydraulic inner surface can be aligned in such a way that a movement of the hydraulic inner surface with the fluid via the fluid connection generates a Kr ⁇ referred to as hydraulic force on the sealing element in the direction of the sealing assigned storage area exerts.
  • a pressurization of the hydraulic inner surface; the fluid can thus cause a movement of the sealing element along the longitudinal extension of the bearing part.
  • the movement of the sealing element can take place in F of the bearing surface assigned to the sealing element.
  • the movement of the sealing element is generally dependent on a resultant force on the sealing element, which is composed of the hydraulic force on the hydraulic inner surface and, if appropriate, other forces, for example opposing forces on the sealing element. In particular, a movement can take place until an equilibrium of forces occurs.
  • At least one sealing element can have, for example, at least two sealing elements with a sliding ring and at least one further sealing element, with at least two sealing elements being arranged on opposite sides of the fluid connection with respect to the axis of longitudinal extent. These can then, for example, be opposing, oppositely directed hydraulic inner surfaces. Furthermore, these sealing elements can, for example, oppose each other when a hydraulic pressure is exerted on the hydraulic inner surface.
  • the bearing part can in particular have a circular-cylindrical lateral surface.
  • the cylindrical lateral surface can be concentric around the longitudinal axis.
  • the rotary part can, for example, be arranged around the cylindrical outer surface of the bearing.
  • the fluid connection can have at least one outlet opening on a circumference of the bearing part and at least one corresponding inlet opening on the inner circumference of the rotary part, so that fluid can flow out of at least one inner Bearing part can flow through the outlet opening and the inlet opening in at least one space of the rotating part or vice versa.
  • one or more of the inlet openings on the inner circumference of the bearing part can sequentially and/or cyclically coincide with the at least one entry opening, so that the fluid connection is established in each case
  • Bearing part can be arranged, for example equidistantly, and an N number of inlet openings can be arranged along an inner circumference of the rotating part, for example also in turn equidistantly.
  • the number of outlet openings can correspond to the number of inlet openings, although a different number can also be envisaged.
  • the bearing part and the rotary part can be arranged on the fluid connection, in particular in relation to one another. This spacing can in particular be designed in such a way that part of the fluid which emerges from the outlet opening can enter a space between the bearing part and the rotating part and can pressurize the hydraulic inner surface there.
  • the at least one bearing surface can in particular have a normal vector which is oriented essentially parallel to the axis of longitudinal extension.
  • V ⁇ can refer to a situation in which the normal line of the bearing surface and the longitudinal axis of the bearing part close an angle that is smaller, preferably an angle of less than 5°, particularly preferably an angle kl and particularly preferably an angle of 0°.
  • the bearing surface can in particular be configured as a circular ring surface or one or more flat circular ring disks. However, a different configuration is also fundamentally possible.
  • the at least one bearing surface can effect an axial bearing of the rotary part or be part of an axial bearing of the rotating part.
  • one or more further bearing surfaces and/or bearing elements are optionally provided, which can also contribute to the bearing of the rotating part.
  • the I component of this at least one optional additional bearing element can be oc include at least one optional additional bearing element.
  • the fluid can optionally also have at least one radial bearing, in particular a radial bearing of the at least one rotating part. This radial bearing can for example also be part or all of the bearing part. So the Rotte special can enclose the bearing part in whole or in part, so that the bearing part also g; can partially provide a radial bearing for the rotating part.
  • the at least one sealing element at least one of the hydraulic! surface opposite and can be acted upon by an ambient pressure hydr outer surface.
  • inner surface the term surface, as will be understood by those skilled in the art, can in particular describe a surface that is arranged on the outside of at least one body. Pressurizing the metallic inner surface and pressurizing the hydraulic outer surface result in opposing axial forces on the sealing element.
  • the outer surface h can be larger than the hydraulic inner surface, in particular by a factor of 1.1 to 2.5, in particular by a factor of 1.2 to 2.2.
  • the hydraulic outer surface can form an annular gap with the bearing surface assigned to the sealing element, wherein the annular gap can be fluidically connected to a unit of the fluid system.
  • the term "environment,” as used herein, is a broad term that is to be given its ordinary and current meaning as understood by those skilled in the art. The term is not limited to an immediate or customary meaning.
  • the term may refer to a space external to a device, body, device or object, without limitation.
  • the environment of the fluid system can include the space outside the fluid system. This can, for example, be completely or t filled with a fluid, for example a gas such as air in particular, or; a liquid such as water.
  • the optional annular gap can thus be filled entirely or partially with at least one Fh, for example a gas and/or a liquid.
  • Fh for example a gas and/or a liquid.
  • the R can act in particular as a sliding bearing and cause the rotating part to rotate about the bearing part.
  • the preferred fluidic connection between the environment and the gap can ensure that the annular gap is filled with the fluid.
  • this annular gap can be designed to be flat.
  • the hydraulic outlet can thus be accessible to a fluid from the environment of the fluid system, which could be the same fluid as inside the fluid system, for example, or a different fluid, for example a gas, in particular air.
  • the gap can also be filled with fluid from the fluid system by means of an annular gap between the sealing element and the L, for example a cylindrical annular gap, so that a mixed pressure between the external pressure and the internal pressure occurs in the annular gap between the bearing surface and the hydraulic surface In this way, for example, the above-described plain bearing effect of the ring can be additionally promoted.
  • the hydraulic outer surface can be flat or non-flat.
  • the hydraulic outer surface can have at least one circular ring surface, for example, be arranged concentrically around the axis of longitudinal extension k ⁇ in the case of several, for example stepped, circular ring surfaces being provided, the hydraulic outer surface can have at least one circular ring surface which at least one depression is embedded, the depression, for example Pressure reservoir can be used, which can be acted upon with fluid, for example via an annular gap between the sealing element and the bearing part.
  • 1 hydraulic outer surface have at least one annular groove.
  • the pressure ratios in the R between the hydraulic outer surface and the assigned bearing surface can be influenced by a corresponding design of the hydraulic outer surface.
  • the sliding ring can in particular have at least two sections with different diameters, in particular with different outer diameters.
  • the further sealing element can be placed on the sliding ring in a first section with a first diameter, with at least one second section with a second diameter of the sliding ring existing, the second diameter being larger than the first diameter.
  • An overall diameter of the sliding ring and of the further sealing element in the first section can correspond to the diameter, with tolerances being possible which, for example, can correspond to a compression of the further sealing element.
  • the rotating part can in particular be configured symmetrically.
  • the rotating part can be designed to be rotationally symmetrical.
  • Other shapes, in particular according to the shape of the bearing part, can also be possible.
  • a nozzle system comprises at least one fluid system as proposed here, for example according to one or more of the configurations described above or according to one or more of the configurations described in more detail below.
  • the bearing part of the fluid system is part of a fluid supply of the nozzle system Rotary part has at least one rotary nozzle, wherein the rotary nozzle has at least one opening.
  • nozzle system as used herein is a broad term that should be given its ordinary and current meaning as understood by those skilled in the art. The term is not limited to a special or adapted meaning.
  • the term can, without limitation, refer in particular to any device which is set up to discharge at least one fluid in a defined manner, in particular as jets or drops.
  • the nozzle system can be set up to hit at least one object to be acted upon with the fluid in a defined manner.
  • the nozzle system can be set up to clean to be subjected to at least one cleaning fluid in a defined manner, as will be explained in more detail below.
  • the nozzle system can have at least one entry opening, through which the fluid, in particular the cleaning fluid, can flow and can impinge on items to be cleaned.
  • the nozzle system can be designed, for example, as a single nozzle or as a combination of several nozzles.
  • 1 “nozzle” is generally understood to be a sub-unit of the nozzle system, which has at least one outlet opening.
  • the nozzle system can be set up, for example, to direct the fluid in at least one predetermined direction, for example a predetermined angle, onto items to be cleaned or another object to be acted upon.
  • the nozzle system can also set a pressure, for example a force, with which the fluid is applied to the items to be cleaned or to the object to be applied.
  • the nozzle system includes the fluid system described with the at least one bearing part as a fluid supply component and the at least one rotating part designed as a rotating nozzle, with the rotating nozzle having at least one nozzle opening.
  • This at least one nozzle can be arranged, for example, on an outer peripheral surface of the rotating nozzle, since the nozzle system can have at least one further element.
  • fluid delivery is a broad term that should be given its ordinary and current meaning as understood by those skilled in the art.
  • the term is not limited to any specific or adapted meaning.
  • the term may, without limitation, refer in particular to an element or device that is adapted to supply fluid to at least one other element that is fluidly connected to the fluid supply.
  • the fluid supply can, for example, comprise at least one connection for the fluid.
  • the end can be connected, for example, to an interior space of the bearing part, so that fluid can flow via the connection into the interior space and from there out to the rotating part configured as a rotating nozzle.
  • the fluid supply can, for example, comprise at least one leading pipe and/or pipe system.
  • rotary nozzle is a broad term that should be given its ordinary and common meaning as understood by those skilled in the art. The term is not limited to any specific or adapted meaning. This can, without limitation, relate in particular to a nozzle in the sense of the above Di that is rotatably mounted.
  • the rotary nozzle as part of the nozzle system, in particular, applies the fluid to items to be cleaned, in particular Cleaning fluid allow, as explained in more detail below.
  • the rotary nozzle can be rotated b wise by an impulse of the discharged fluid.
  • the nozzle can in particular be set up to discharge the fluid during a rotation so that the fluid is discharged, for example, in the direction of a lateral surface of at least one.
  • ifice is a term which should be given its ordinary and ordinary meaning as understood by those skilled in the art. The term is not limited to any specific or to; Importance.
  • the term can, without limitation, relate in particular to an opening in a fluid-carrying component, in particular a nozzle, through which F can exit the component.
  • the nozzle opening can in particular be set up to give the exiting fluid at least one defined direction and/or to shape one or more drops of the fluid in a predetermined manner.
  • the at least e sen opening can be set up, for example, to give escaping fluid a tan directional component. Through this tangential directional component k, for example, a turning momentum can be transferred to the turning nozzle itself, so that the D is set in rotation.
  • a cleaning device for cleaning items to be cleaned comprises at least one cleaning chamber, furthermore at least one loading device loading the items to be cleaned in the cleaning chamber with the least! Fluid.
  • the application device has at least one nozzle system as proposed above, for example according to one or more of the configurations described above and/or according to one or more of the configurations described in more detail below.
  • cleaning items are generally understood to be items that are cleaned in the cleaning device.
  • One item can be cleaned, or several items can be cleaned at an early stage or sequentially.
  • the cleaning agent can be a container for collecting human excrement, for example in bottles, bedpans, bedpans or similar containers.
  • a cleaning device can be designed, for example, as a so-called cleaning and disinfecting device (RDG).
  • RDG cleaning and disinfecting device
  • the items to be cleaned can also be stands that are used directly or indirectly for the preparation, storage or processing of food, for example crockery, cutlery, bowls, glasses, pots, pans or similar objects.
  • Cleaning device for example, also designed as a dishwasher, for example as a dishwasher for commercial use in canteen kitchens in communal catering.
  • the items to be cleaned can also, for example, be items of personal protective equipment, such as respiratory protection masks or respirators.
  • Other types of cleaning device and/or items to be cleaned are basically i
  • cleaning device as used herein is a broad term which should be given its common and current meaning as understood by those skilled in the art. The term is not limited to a special or adapted meaning. The term can, without limitation, relate in particular to a device that is set up to remove adhering macroscopic or mpic contamination from items to be cleaned or at least to eliminate such contamination. In addition, a disinfecting effect can optionally be exercised
  • the cleaning device can comprise a controller which can be set up in a way to programmatically control and/or regulate the loading of the items to be cleaned by the system.
  • the term 'control' used herein is a broad term which should be given its ordinary and current meaning as understood by those skilled in the art. The term is not limited to any special or adapted meaning.
  • the term can refer, without description, in particular to a one-part or multi-part device of the cleaning process, which is set up to fully or partially control and/or regulate an operation of the cleaning device.
  • the controller can be used to ve in particular to control and/or regulate one or more operating parameters of the cleaning device, for example at least one terr at least one pressure or a combination of two or more operating ter.
  • the controller can hold at least one data processing device, for example at least one processor.
  • the control can be set up in terms of gram technology, for example in order to control at least one cleaning program of the cleaning device.
  • cleaning chamber is a broad term which should be given its ordinary and current meaning as understood by those skilled in the art. The term is not limited to any specific or adapted meaning; refer closed chamber within which the cleaning process can be carried out completely c as.
  • the cleaning chamber can in particular have at least a housing which completely or partially encloses the cleaning chamber, a single cleaning chamber can be provided, or in principle several cleaning chambers can be provided, for example sequentially.
  • the Reir chamber can, for example, have at least one opening for loading the cleaning with the items to be cleaned. For example, this can be an opening with a front side of the cleaning chamber and/or a top side of the cleaning chamber with a designated flap.
  • hoods are also possible at the end of the cleaning, for example in the context of so-called hood cleaning machines, for example hood dishwashers.
  • the cleaning equipment can also be configured entirely or partially as a tunnel, especially in the context of so-called continuous cleaning machines, for example continuous dishwashers.
  • the term "applying device” as used herein is a term to be given its ordinary and current meaning as understood by those skilled in the art. The term is not limited to any specific or to; Importance. The term can, without limitation, relate in particular to any green device by means of which the items to be cleaned within the Reir chamber can be subjected to the cleaning liquid.
  • the impingement device comprises at least one nozzle system, for example in accordance with one or more of the above-described statements and/or in accordance with one or more of the embodiments described in more detail below.
  • the impingement device can comprise at least one, as well as at least one line system, for providing cleaning fluid to the nozzle system.
  • a nozzle system and a system for applying cleaning fluid from a tank can be provided! Such as at least one corresponding pump. Alternatively or additionally, at least one nozzle system can also b, directly from a supply line is acted upon that a pump would be required for this.
  • a plurality of cleaning zones can be provided, through which, for example, the cleaning agent passes sequentially tion device is set up to run a cleaning device by means of the Bea supply device, in which the cleaning is recorded stationary in the cleaning chamber and successively in a oc reren cleaning steps of the cleaning program in different ways m tion liquid is applied.
  • the items to be cleaned can also be transported downstream through a plurality of cleaning zones, in which there is a different application of cleaning liquid, for example one or more cleaning zones selected from the group consisting of: a pre-cleaning zone washing zone; a post-rinse or final-rinse zone, the same being subdivided again into a pump-type final-rinse zone and a downstream fresh-water final-rinse zone.
  • At least one drying step can be provided which, for example, can be in the chamber after the application of the cleaning liquid when the items to be cleaned are held in a stationary position, or which can, for example, in the case of the transp machine in a drying zone downstream of the liquid cleaning zones.
  • the loading device can have at least two tanks for loading the fluid.
  • the tanks can have at least one main wash, for example, and the cleaning device can be set up to apply fluid from the main wash tank to the cleaner in circulation mode, in particular by means of at least one circulation pump.
  • the tanks can also have at least one rinsing tank separate from the main wash tank, in particular a boiler, wherein the cleaning device can be set up to apply fluid from the rinsing tank to cleaning items, in particular without operation.
  • the application device can also have at least one tank for storing the at least one fluid, with the cleaning device being set up to apply fluid from the tank to the items to be cleaned, particularly without circulating operation.
  • the cleaning device can have at least one cleaning device selected from the group consisting of: a cleaning device for supplying containers for human waste, in particular a cleaning and disinfecting device; a dishwasher, in particular a dishwasher, in particular a dishwasher selected from the group consisting of: a 1-mer dishwasher, in particular a programmer; a conveyor dishwasher, in particular a flight-type dishwasher and/or a basket conveyor! machine.
  • the application device can also have at least one steam generator. The application device can be set up to apply steam to the nozzle system of the steam generator as a fluid. The nozzle system can b wise be set up to apply the steam from the steam generator to the items to be cleaned.
  • a method for the subject of the presently proposed fluid system comprises the following method steps.
  • the method steps can in particular be carried out in the order mentioned, but a different order is also possible for possible configurations, reference can be made to the above description of the fluid system or to the following description of possible embodiments.
  • the method also includes subjecting the bearing to at least one fluid. When the bearing part is acted upon by a fluid, in particular a pressure of the fluid can be selected such that an annular gap remains between the sealing element and the associated bearing surface.
  • a method for cleaning items to be cleaned comprises the following method steps. Method steps can be carried out in the order listed, but a different order is also possible.
  • the method comprises treating at least one cleaning device as proposed here, for example according to one or more of the configurations described above and/or like one or more of the configurations described in more detail below. Accordingly, for possible definitions and for possible configurations, reference can be made to the above description of the cleaning device or to the following description of exemplary embodiments.
  • the method includes a treatment of the items to be cleaned by means of the at least one nozzle system in the cleaner with the at least one fluid.
  • Thermal expansion of the components are compensated so that the rotating part is always on Fluid films, such as water films, can slide.
  • the bearing play can be set to an optimally tight level.
  • a loss of fluid due to leakage at the bearing can continue to be reduced.
  • a desired pressure in the rotating nozzle can be reached with the smallest possible fluidve.
  • the fluid used for example water, can thus be used as far as possible for the cleaning and/or loading process. This can be particularly advantageous for cleaning and disinfection devices, since the Fluid typically used only once for the cleaning process and n: can be rolled over.
  • the present invention can also be used in Friscl clear-rinse systems, for example in dual-circuit dishwashers, so that the advantages listed also apply here.
  • the present invention can set pressure conditions in the fluid system such that the fault, such as the S particle, can be easily eliminated and flushed out.
  • the sealing element comprises at least one sliding ring and at least one further sealing element.
  • the sealing element may include an O-ring.
  • Other designs such as: membrane, an X-ring or other additional sealing elements are conceivable.
  • the other element, in particular the O-ring seals the sliding ring against at least one component of the fluid system.
  • tolerance-related gaps can be equalized.
  • only an annular part of the hydraulic outer surface and the at least one associated lag can be present, with the cross section of the annular gap being variable in particular in order to be able to compensate for tolerances in the axial direction.
  • the sliding ring and the further sealing element can also be made in one piece, for example by the further sealing element being formed on the sliding ring by means of two-component injection molding.
  • the fluid system can be designed in such a way that during operation the gap dimension between at least one sealing element and the bearing surfaces is set such that there is a fluid on which the rotating components slide relative to the stationary components.
  • the bearing part can comprise a disc which is connected to the bearing part is this can form at least one stationary, axial bearing surface. If at least* axially spaced bearing surfaces are provided, the bearing surfaces can, for example, enclose the rotary part, in particular in such a way that the bearing surfaces enclose the rotary part at the top.
  • the fluid system can also reduce the fluid and pressure loss and the 1 between the moving parts, in particular due to the preferred fluidic connection between the environment and the annular gap.
  • the annular gap in fluid communication with the environment can simultaneously minimize the axial bearing play between the bearing part and the rotary part and maintain a liquid film on the bearing surfaces, which can prepare a hydrodynamic bearing between the bearing part and the rotary part.
  • the pressure conditions of the liquid film in the ring can be adjusted to the internal pressure and the ambient pressure via the fluidic connection between the annular gap surrounding the fluid system. In particular, play can be achieved with an optimal degree and minimal fluid loss and/or pressure loss.
  • Embodiment 1 Fluid system for conducting at least one fluid, comprising at least one fluid of the bearing part that extends axially with respect to an axis of longitudinal extent and at least one fluid-conducting rotary part that is mounted on the part so that it can rotate about the axis of longitudinal extent, with the bearing part and the rotary part being fluidically connected to one another via at least one fluid connection are connected, with at least one axially displaceably mounted sealing element being arranged between the bearing part and the rotating part, with the sealing element surrounding the bearing part in the form of a ring, with the sealing being arranged between the fluid connection and at least one surface of the fluid system assigned to the sealing element, with the sealing element being at least a hydraulic inner surface a that can be pressurized with 1 fluid and faces the fluid connection, whereby a hydraulic force is applied to the sealing element in the direction ⁇ the sealing element assigned to L bearing surface can be exercised, the sealing element being designed in and having at least one sliding ring enclosing the bearing part and mounted axially in different ways and
  • Embodiment 2 Fluid system according to the previous embodiment, where the bearing surface associated with the sealing element is at least partially formed by at least one element selected from the group consisting of: the rotating part; the part an element connected to the rotating part; an element connected to the bearing part, in particular a projection of the bearing part, in particular an annular projection of the bearing part.
  • Embodiment 3 fluid system according to one of the preceding embodiments? wherein the fluid system further includes at least one broad surface associated with the rotary member.
  • Embodiment 4 Fluid system according to the previous embodiment, w the rotary part associated further bearing surface is formed by the bearing part, ir more by at least one projection of the bearing part, in particular a peripheral annular projection of the bearing part.
  • Embodiment 5 Fluid system according to one of the two preceding embodiments, wherein the rotating part is set up to slide in a rotating manner on the bearing surface assigned to the rotating part.
  • Embodiment 6 Fluid system according to one of the three preceding embodiments, wherein the rotary part is guided between the bearing surface assigned to the sealing element and the additional bearing surface assigned to the rotary part.
  • Embodiment 7 Fluid system according to one of the preceding embodiments, wherein the further sealing element seals the sliding ring against a component from the group consisting of the bearing part and the rotating part.
  • Embodiment 8 Fluid system according to the previous embodiment, w the sliding ring is not sealed against the respective other component of the group consisting of the bearing and the rotary part, so that fluid can pass between the sliding ring and the component.
  • Embodiment 9 Fluid system according to one of the preceding claims, w further sealing element is designed in a way selected from the group bi from: the further sealing element is connected to the sliding ring and is mounted in common with the sliding ring in an axially displaceable manner; the further sealing element is connected to the bearing part, in particular received in a groove of the bearing part pointing towards the sliding ring; the further sealing element is connected to the rotary part, in particular received in a groove of the rotary part pointing towards the sliding ring.
  • Embodiment 10 Fluid system according to the previous embodiment, w sliding ring is made of at least one rigid material.
  • Embodiment 11 Fluid system according to one of the preceding embodiments? wherein the sliding ring is made entirely or partially from at least one material selected from the group consisting of: a plastic material, in particular thermoplastic plastic material, in particular a thermoplastic Ku: material selected from the group consisting of polytetrafluoroethylene, in particular Ion®; polyethylene, polyamide, polypropylene and polyoxymethylene; a metallic material, in particular a metallic material selected from the group consisting of aluminum and stainless steel; a ceramic material.
  • a plastic material in particular thermoplastic plastic material, in particular a thermoplastic Ku: material selected from the group consisting of polytetrafluoroethylene, in particular Ion®; polyethylene, polyamide, polypropylene and polyoxymethylene; a metallic material, in particular a metallic material selected from the group consisting of aluminum and stainless steel; a ceramic material.
  • a plastic material in particular thermoplastic plastic material, in particular a thermoplastic Ku: material selected from the group consisting of polytetrafluoroethylene,
  • Embodiment 12 fluid system according to one of the preceding embodiments? wherein the at least one further sealing element comprises at least one element selected from the group consisting of: an O-ring; a membrane; an X-Rins lip seal.
  • Embodiment 13 fluid system according to one of the preceding embodiments? wherein the at least one further sealing element is made of at least one deformable material, in particular at least one elastic material.
  • Embodiment 14 fluid system according to one of the preceding embodiments? wherein the at least one further sealing element is made of at least one elastomer, in particular an elastomer material selected from the group b (from: acrylonitrile butadiene rubber (NBR); fluoroelastomer, in particular Viton®; tem nitrile rubber (HNBR); fluororubber (FKM); silicone rubber (VMQ);1 propylene diene rubber (EPDM);highly fluorinated fluororubber (H-FKM);P rubber (FFKM);fluorosilicone rubber (FVMQ);tetrafluoroethylene (TFE);rubber (ACM);chloroprene rubber (CR); Polyurethane rubber (AU).
  • NBR acrylonitrile butadiene rubber
  • FKM fluororubber
  • VMQ silicone rubber
  • EPDM highly fluorinated fluororubber
  • FFKM fluorosilicone rubber
  • TFE
  • Embodiment 15 Fluid system according to one of the preceding embodiments, wherein the at least one sealing element has at least two sealing elements, each with a sliding ring and at least one further sealing element, the two sealing elements being arranged one on top of the other with respect to the axis of longitudinal extent opposite the side of the fluid connection.
  • Embodiment 16 Fluid system according to one of the preceding embodiments, wherein the bearing part has a circular-cylindrical lateral surface, wherein the circular; see lateral surface is arranged concentrically around the longitudinal axis.
  • Embodiment 17 Fluid system according to one of the preceding embodiments, wherein the fluid connection has at least one outlet opening on an outer periphery of the bearing part and at least one corresponding inlet opening on an interior of the rotating part, so that fluid from at least one interior space of the bearing part can flow through the outlet opening and the inlet opening into at least one interior space of the I can flow in or vice versa.
  • Embodiment 18 Fluid system according to one of the preceding embodiments, wherein the bearing part and the rotary part are arranged at a distance from one another at the fluid connection.
  • Embodiment 19 Fluid system according to one of the preceding embodiments, wherein the bearing surface assigned to the sealing element is aligned with a normal vector essentially parallel to the axis of longitudinal extension.
  • Embodiment 20 Fluid system according to one of the preceding embodiments, wherein the bearing surface assigned to the sealing element has a flat annular surface.
  • Embodiment 21 Fluid system according to one of the preceding embodiments, wherein the sealing element furthermore has at least one hydraulic outlet which is above the hydraulic inner surface and can be subjected to an ambient pressure.
  • Embodiment 22 Fluid system according to the previous embodiment, wc pressurization of the hydraulic inner surface and a pressurization hydraulic outer surface lead to opposing axial forces on the E ment.
  • Embodiment 23 Fluid system according to one of the two preceding embodiments, wherein the hydraulic outer surface is larger than the hydraulic inner surface (in particular by a factor of 1.1 to 2.5, in particular by a factor of 1.2 to 2.1.
  • Embodiment 24 Fluid system according to one of the three preceding embodiments, wherein the hydraulic outer surface forms an annular gap with the at least one bearing surface assigned to the sealing element, wherein the annular gap is fluidically connected to an environment of the fluid system.
  • Embodiment 25 Fluid system according to one of the four preceding embodiments, wherein the hydraulic outer surface has at least one annular groove.
  • Embodiment 26 fluid system according to one of the preceding embodiments? wherein the sliding ring has at least two sections with different diameters, in particular with different outer diameters.
  • Embodiment 27 Fluid system according to the previous embodiment, w outer diameter of the sliding ring, starting from one of the fluid connection to the side towards the bearing surface assigned to the sealing element, gradually increasing
  • Embodiment 28 Fluid system according to one of the two preceding embodiments, wherein the further sealing element is placed on the sliding ring in a first section with a first knife, wherein at least a second section has a second diameter of the sliding ring, the second diameter being greater than the first Diameter.
  • Embodiment 29 Fluid system according to the previous embodiment, w the total diameter of the sliding ring and the further sealing element in the first section corresponds to the second diameter.
  • Embodiment 30 fluid system according to one of the preceding embodiments? wherein the rotary part is designed to be rotationally symmetrical.
  • Embodiment 31 Nozzle system comprising at least one fluid system according to the preceding embodiments, the bearing part of the fluid system being the part of the fluid supply of the nozzle system and the rotating part having at least one E, the rotating nozzle having at least one nozzle opening.
  • Embodiment 32 Nozzle system according to the previous embodiment, w at least one nozzle opening is arranged to give exiting fluid a tan directional component.
  • Embodiment 33 Cleaning device for cleaning items to be cleaned, send at least one cleaning chamber, further comprising at least one aeration device for impinging the items to be cleaned in the cleaning chamber with the at least one fluid, wherein the impinging device has at least one system according to one of the preceding embodiments relating to a nozzle system.
  • Embodiment 34 Cleaning device according to the preceding embodiment, the application device having at least two tanks for storage, the tanks having at least one main wash tank, the delivery device being set up to apply fluid from the main wash to the items to be cleaned in circulation mode, in particular by means of at least one circulation; and wherein the tanks also have at least one post-rinse tank formed separately from the main wash tank, in particular at least one boiler, the processing device being set up to apply fluid from the post to the items to be cleaned, in particular without circulation.
  • Embodiment 35 Cleaning device according to embodiment 33, wherein the hammering device has a tank for storing the fluid, the hammering device being set up to hammer the items to be cleaned with fluid from the tank, in particular without circulation.
  • Embodiment 36 Cleaning device according to one of the three preceding forms of protection, wherein the cleaning device has at least one cleaning device selected from the group consisting of: a cleaning device for supplying containers for human waste, in particular a cleaning and disinfecting device; a dishwasher, in particular a dishwasher machine selected from the group consisting of: a single-chamber dishwasher in particular a program machine; a conveyor dishwasher, in particular flight-type dishwasher and/or a rack conveyor dishwasher;
  • Embodiment 37 Cleaning device according to one of the preceding embodiments relating to a treatment device, wherein the application device also has at least one steam generator.
  • Embodiment 38 cleaning device according to the preceding embodiment, wherein the loading device is set up to load the nozzle system with the steam generator.
  • Embodiment 39 Method for operating a fluid system according to one of the previous embodiments relating to a fluid system, comprising a portion of the fluid system, further comprising loading the bearing part with the at least one fluid.
  • Embodiment 40 Method for cleaning items to be cleaned, comprising providing at least one cleaning device according to one of the preceding embodiments relating to a processing device, further comprising a treatment of the items to be cleaned by means of the at least one nozzle system in the cleaner with the at least one fluid.
  • FIG. 1 is a sectional view of one embodiment of a fluid system and iron system
  • FIG. 2 shows an exemplary embodiment of a cleaning device
  • FIG. 3 shows an alternative embodiment of a fluid system and nozzle system to FIG. 1, in a sectional representation.
  • FIG. 1 shows a sectional view of an exemplary embodiment of a fluid 110 for guiding a fluid.
  • the fluid system 110 includes a fluid-carrying bearing part 114 that extends axially with respect to the axis of longitudinal extent 112.
  • the fluid system 110 includes at least one fluid-carrying rotary part 116 that is rotatably mounted on the bearing part 114 about the longitudinal extent axis.
  • the rotary part 116 bearing part 114 is fluidic via a fluid connection 118 connected to one another, the rotating part 116 in this exemplary embodiment is optionally mounted between at least axially spaced bearing surfaces 120 , which in this exemplary embodiment can be components of the bearing part 114 .
  • the bearing part 114 and the rotary part 116 there is at least one axially displaceably mounted sealing element 122 on which the upper of the two bearing surfaces 120 is associated in this exemplary embodiment.
  • the lower of the two bearing surfaces 120 can be referred to as a further bearing surface 121, which in this case is optionally associated with 116.
  • the sealing element 122 surrounds the bearing part 114 in an annular manner.
  • the sealing element 122 is arranged next to the fluid connection 118 and at least one of the bearing surfaces 120 on the bearing surface 119 assigned to the sealing element 122.
  • the element 122 has at least one hydraulic inner surface 124 that can be acted upon by the fluid and faces the fluid connection. A hydraulic force can be exerted on the sealing element 122 in E of the bearing surface 119 associated with the sealing element 122 by means of pressurizing the metallic inner surface 124 .
  • the sealing element 122 is designed in multiple parts and has at least one sliding ring 126 enclosing the I 114 and mounted in an axially displaceable manner and at least one further sealing element 128 .
  • This additional sealing element 128 seals the Sch 126 against at least one other component of the fluid system 110 .
  • the component can be, in particular, the rotary part 116, as in the example shown, or the bearing part 114.
  • the further sealing element can in particular be designed in such a way that it can be displaced axially together with the slide.
  • the further sealing element 128 is connected to the rotary part 116 or the bearing part 114 in a fixed or movable manner.
  • the berring 126 is preferably not sealed against the other ⁇ selected from the group consisting of the rotating part 116 and the bearing part 114, so that a passage of fluid is possible
  • the hydraulic inner surface 124 of the sealing element 122 can be directed, for example, in such a way that when the hydraulic inner surface 124 is acted upon by the liquid, the fluid connection 118 can exert a force on the sealing element 122 in the direction of the bearing surface 119 assigned to the element 122, i.e. in Figure 1, for example right up.
  • the hydraulic inner surface 124 can have a standard gate which, corresponding to a normal envector of the bearing surface 119, is aligned in a V parallel to the longitudinal axis 112 of the bearing part 114
  • the sealing element 122 can have at least one hydraulic outer surface 130 opposite the hydraulic inner surface.
  • the hydraulic outlet 130 can be pressurized with an ambient pressure. Applying pressure to the hydraulic inner surface 124, in particular with a pressure of the fluid, and applying pressure to the hydraulic outer surface 130, in particular with an ambient pressure, can result in opposing axial forces on the sealing element 12 ⁇ .
  • the geometry and/or the dimensions of the hydraulic Inm 124 and/or the hydraulic outer surface 130 are selected such that in the fluid system 110 there is an equilibrium of forces between the axially opposite forces.
  • the hydraulic outer surface 130 with the at least one sealing element 122 associated bearing surface 119 which in the present example can be a special bearing surface 120 of the bearing part 114, an annular gap 132 or annular gap 132 can be fluidly connected to an environment of the fluid system 110.
  • the geometry and / or dimensions of the sealing element 122 in particular The geometry and/or the dimensions of the hydraulic inner surface 124 and/or the rough outer surface 130 can be selected such that a force equilibrium is created such that the annular gap 132 is always open when the fluid system 110 is in operation.
  • a fluid film can form, for example in the annular gap 132, on which the seal 122 can be rotatably mounted, in particular can rotate and/or slide.
  • the hydraulic outer surface 130 can be larger than the hydraulic inner surface by a factor of 1.1 to 2, in particular by a factor of 1.2 to 2.2.
  • the geometry of the sealing element 122 can alternatively and/or additionally be designed to be rigid being.
  • the hydraulic outer surface 130 can have at least one rim.
  • the outer surface 130 can have, for example, a plurality of annular grooves 134 and/or a labyrinth seal.
  • the sliding ring 126 can comprise at least two sections with different diameters, in particular with different outer diameters.
  • the outer diameter of the at least two sections can increase in stages, starting from a side facing the binding 118 towards the side 119 assigned to the sealing element 122.
  • the sliding ring 126 can have a nominal diameter 140 .
  • the second section second diameter 138 may be larger than the first section first diameter 136 .
  • the further seal 128, for example the O-ring, can be placed in the first section with the first diameter 136.
  • the sealing element 122 can furthermore have at least two sealing elements 122 each with a sliding ring 126 and at least one further sealing element 128 .
  • the at least two sealing elements 122 can be arranged on the sides of the fluid connection 118 that overlap one another on the axis of longitudinal extent 112 .
  • another annular gap 142 can likewise be arranged between an underside of the rotary part 116 and the associated bearing surfaces.
  • the rotating part 116 can be rotatably mounted on an idfilm in the further annular gap 142 .
  • the fluid system 110 can be part of a nozzle system 141, for example.
  • the Di tem 141 includes at least one fluid system 110.
  • the bearing part 114 of the Fluidsysi is part of a fluid supply of the nozzle system 141.
  • the rotating part 116 has mii a rotating nozzle 144, the rotating nozzle 144 having at least one nozzle opening ; points.
  • the nozzle orifice 146 may be configured to give a tangential directional component to the fluid flowing out of the nozzle orifice 14( ).
  • the fluid-carrying parts for example the bearing part 114 rotating part 116, can be subjected to the pressure p t by the fluid.
  • the environment p u in the vicinity of the fluid system 110 can be less than the pressure p t .
  • the sealing element can be a piston with the annular surface works.
  • d D denotes the first diameter 136 of the first section de berings 126 and d t the inner diameter 140 of the sliding ring 126.
  • the Druckbea supply can provide a force F K in the axial direction, where
  • d a denotes the diameter 138 of the second section of the sliding ring 126.
  • Da p s ⁇ ( p'Vu) ur p s ⁇ Pi the design of the components should ensure that a force weight between the force F K and the force F s can arise before the ring is closed, so that a fluid film can form on which the rotating part 116 gl
  • the annular surface A s can be dimensioned larger than the circular ring A K.
  • the hydraulic outer surface can include an annular groove 134, in which the fluid in the fluid system 110 moves more slowly due to the larger cross section compared to the annular gap 132 fl thus a higher pressure p s can arise locally, from which a higher force F s res can arise.
  • This can also be supported by other geometries with a similar effect, for example with a labyrinth seal or several annular grooves 134.
  • a second sealing element 122 can also be on the underside of the rotary part 116 .
  • the sealing element 122 can have an annular gap 132 on the underside of the rotating part 111 and the lower hydraulic outer surface 130 can also have a rim, so that the same physical principle can be applied to the underside. Since the sealing element 122 is mounted so that it can move axially, the sealing element, in an exemplary embodiment consisting of an O-ring and a sliding ring 126, can slide and rotate with the rotating part 122 between two thin fluid films
  • the nozzle system 141 can in turn be used in a cleaning device 148 for cleaning items 150, for example in cleaning and disinfection devices r in dishwashers.
  • a cleaning device 148 for cleaning items 150 to be cleaned is illustrated in FIG.
  • the cleaning device 148 comprises at least one cleaning chamber 152 i.e. at least one application device 154 for applying the at least one fluid to the goods 150 in the cleaning chamber 152.
  • the application device 154 has a nozzle system 141, comprising at least one fluid system 110.
  • the loading device 154 of the cleaning device 148 can continue! at least have a tank 156 for storing the fluid, for example a 158.
  • the cleaning device 148 can comprise at least one pump 160. W, the cleaning device 148 may include a drain 164 .
  • the cleaning device 148 can be set up, for example, to apply fluid from the tank 156 to the cleaning device 150, in particular by means of the purr.
  • FIG. 2 shows an arrangement in which only a simple application takes place.
  • the application device 154 can have at least one circulating pump, by means of which the fluid in the cleaning chamber 152 is circulated, with a W; 162 can be formed, from which the fluid is supplied again by means of at least one circulation pump nozzle system 141 or another nozzle system.
  • This can take place, for example, in at least one washing step, whereas the single application shown in FIG. 2 can take place, for example, as part of at least one final rinsing step downstream of the was(.
  • Separate nozzle systems 141 or even different nozzle systems can be used for the washing step and the N ⁇ step.
  • the application device 154 can also have at least one heating device, by means of which the fluid can be heated. Furthermore, the ventilation device 154 can have at least one steam generator 168 . This is shown in FIG. 2, for example fully or partially integrated into the boiler 158. Other configurations are possible. For example, the impingement front 154 can be set up to impinge the nozzle system 141 with steam from the steam generator.
  • the wide telement 128 seals the sealing element 122 against the rotary part 116, so that the seal 122 preferably rotates with the rotary part 116, whereas, for example, there is no seal between the sealing element 122 and the bearing part 114 i can be located, for example, form a fluid film that can promote the rotation.
  • the rotation is embedded and/or guided between the bearing surfaces 120 .
  • FIG. 3 shows an alternative exemplary embodiment of a fluid system 110, which can also be used, for example, in the cleaning device 148 according to FIG which shows that, for example, in the three named properties of the fluid 110 deviations are possible within the scope of the invention.
  • the fluid system 110 corresponds to the exemplary embodiment according to FIG. However, there are deviations; realized the embodiment of Figure 1, which are possible individually or in bi combination.
  • the further sealing element does not seal sealing element 122 against the rotary part 116, but rather against the bearing part 1E
  • the sealing element 122 in this exemplary embodiment preferably does not rotate with the rotary part 116, but rather remains on the bearing part 114.
  • Between the Sealing elements and the rotary part 116 are preferably not sealed, so that a fluid film can form there, which in turn can promote the rotation.
  • the annular gap 132 can form between this layer 119 and the sealing element 122 .
  • the at least one bearing surface assigned to sealing element 122 is a component of rotary part 116 and a part of bearing part 114.
  • This divided bearing surface 119 can therefore be partially fixed i way rotating.
  • the sealing element 122 can move axially, for example, in particular driven by a hydraulic system, and be moved in the direction of the tensile bearing surface 119, for example by the hydraulic force.
  • the rotating part 116 in the exemplary embodiment according to FIG. 3 is not embedded between two bearing surfaces. Instead, the bearing surfaces 120, next to the sealing element 1 arranged and arranged, for example, at the top bearing surface 119, an example in this example arranged below, the rotating part 116 associated wei ger Structure 121, which however points downwards.
  • the bearing part 116 is, as can be seen in FIG.

Landscapes

  • Sealing Devices (AREA)

Abstract

L'invention concerne un système de circulation de fluide (110) destiné à l'acheminement d'un fluide, un système de buse (141) comprenant ce système de circulation de fluide (110) et un dispositif de lavage (148) destiné au lavage d'articles à laver (150). L'invention concerne également un procédé de fonctionnement d'un système de circulation de fluide (110) et un procédé de lavage d'articles à laver (150). Le système de circulation de fluide (110) comprend au moins un élément palier (114) acheminant le fluide, s'étendant axialement par rapport à un axe longitudinal (112) et au moins un élément rotatif (116) acheminant le fluide, monté sur l'élément palier (114) de manière rotative autour de l'axe longitudinal (112). L'élément palier (114) et l'élément rotatif (116) sont reliés par liaison fluidique par l'intermédiaire d'au moins une liaison fluidique (118). Au moins un élément d'étanchéité (122) monté axialement mobile est disposé entre l'élément palier (114) et l'élément rotatif (116). L'élément d'étanchéité (122) entoure l'élément palier (114) de manière annulaire. L'élément d'étanchéité (122) est disposé entre la liaison fluidique (118) et au moins une surface palier (119) associée à l'élément d'étanchéité (122). L'élément d'étanchéité (122) présente au moins une surface interne (124) hydraulique sollicitée par le fluide et tournée vers la liaison fluidique (118). Une force hydraulique peut être exercée sur l'élément d'étanchéité en direction de la surface palier associée à l'élément d'étanchéité par application d'une pression sur la surface intérieure hydraulique (124). L'élément d'étanchéité (122) est conçu en plusieurs parties et présente au moins un anneau coulissant (126) entourant l'élément palier (114) et monté axialement mobile et au moins un autre élément d'étanchéité (128). L'autre élément d'étanchéité (128) assure l'étanchéité de l'anneau coulissant (126) vis-à-vis d'au moins un autre composant du système de circulation de fluide (110).
PCT/EP2021/068755 2020-07-08 2021-07-07 Système de circulation de fluide notamment destiné à être utilisé dans un dispositif de lavage WO2022008562A1 (fr)

Priority Applications (1)

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EP21743090.9A EP4178407A1 (fr) 2020-07-08 2021-07-07 Système de circulation de fluide notamment destiné à être utilisé dans un dispositif de lavage

Applications Claiming Priority (2)

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DE102020208542.0A DE102020208542A1 (de) 2020-07-08 2020-07-08 Fluidsystem, insbesondere zum Einsatz in einer Reinigungsvorrichtung
DE102020208542.0 2020-07-08

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WO2022008562A1 true WO2022008562A1 (fr) 2022-01-13

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2983452A (en) 1958-06-12 1961-05-09 Virgual T Lindbloom Rotary sprayer
US5044672A (en) 1990-03-22 1991-09-03 Fmc Corporation Metal-to-metal sealing pipe swivel joint
JPH04156814A (ja) * 1990-10-19 1992-05-29 Matsushita Electric Ind Co Ltd 食器洗浄機
JPH09238886A (ja) * 1996-03-12 1997-09-16 Toto Ltd 食器洗浄機
US20060054204A1 (en) * 2004-09-14 2006-03-16 Fischer David L Warewash machine arm mount assembly
US20060054716A1 (en) 2003-03-24 2006-03-16 Plastro Irrigation A.C.S. Ltd. Revolving sprinkler
DE102004056052A1 (de) 2004-11-19 2006-06-01 Meiko Maschinenbau Gmbh & Co. Kg Verfahren zur Beurteilung und Sicherstellung von thermischer Hygienewirkung
DE102007025263A1 (de) 2007-05-30 2007-10-31 Meiko Maschinenbau Gmbh & Co. Kg Reinigungsgerät mit Keimreduktion durch Mikrowellen
EP2556781A1 (fr) * 2011-08-08 2013-02-13 BSH Bosch und Siemens Hausgeräte GmbH Agencement de bras pulvérisateur d'un lave-vaisselle

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2983452A (en) 1958-06-12 1961-05-09 Virgual T Lindbloom Rotary sprayer
US5044672A (en) 1990-03-22 1991-09-03 Fmc Corporation Metal-to-metal sealing pipe swivel joint
JPH04156814A (ja) * 1990-10-19 1992-05-29 Matsushita Electric Ind Co Ltd 食器洗浄機
JPH09238886A (ja) * 1996-03-12 1997-09-16 Toto Ltd 食器洗浄機
US20060054716A1 (en) 2003-03-24 2006-03-16 Plastro Irrigation A.C.S. Ltd. Revolving sprinkler
US20060054204A1 (en) * 2004-09-14 2006-03-16 Fischer David L Warewash machine arm mount assembly
DE102004056052A1 (de) 2004-11-19 2006-06-01 Meiko Maschinenbau Gmbh & Co. Kg Verfahren zur Beurteilung und Sicherstellung von thermischer Hygienewirkung
DE102007025263A1 (de) 2007-05-30 2007-10-31 Meiko Maschinenbau Gmbh & Co. Kg Reinigungsgerät mit Keimreduktion durch Mikrowellen
EP2556781A1 (fr) * 2011-08-08 2013-02-13 BSH Bosch und Siemens Hausgeräte GmbH Agencement de bras pulvérisateur d'un lave-vaisselle

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EP4178407A1 (fr) 2023-05-17

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