US20050230424A1 - Device for opening and closing a passage orifice present in a housing - Google Patents

Device for opening and closing a passage orifice present in a housing Download PDF

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Publication number
US20050230424A1
US20050230424A1 US11/066,596 US6659605A US2005230424A1 US 20050230424 A1 US20050230424 A1 US 20050230424A1 US 6659605 A US6659605 A US 6659605A US 2005230424 A1 US2005230424 A1 US 2005230424A1
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US
United States
Prior art keywords
closing
face
closing body
housing
shoulder
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.)
Abandoned
Application number
US11/066,596
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English (en)
Inventor
Ralf Winterstein
Peter Pils
Werner Baumann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Otto Egelhof GmbH and Co KG
Original Assignee
Otto Egelhof GmbH and 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 Otto Egelhof GmbH and Co KG filed Critical Otto Egelhof GmbH and Co KG
Assigned to OTTO EGELHOF GMBH & CO. KG, REGELUNGSTECHNIK reassignment OTTO EGELHOF GMBH & CO. KG, REGELUNGSTECHNIK ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BAUMANN, WERNER, PILS, DR., PETER, WINTERSTEIN, RALF
Publication of US20050230424A1 publication Critical patent/US20050230424A1/en
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/021—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste
    • G05D23/023—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste the sensing element being placed outside a regulating fluid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
    • B60S1/48—Liquid supply therefor
    • B60S1/487—Liquid supply therefor the liquid being heated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation

Definitions

  • the invention relates to a device for opening and closing a passage orifice present in a housing, with a closing body which opens and closes the passage orifice and determines the throughflow quantity of a heating medium provided for heating a medium which at least partially surrounds the device.
  • a device of this type is used, for example, as part of a washing-water container heating for motor vehicles.
  • the windscreen-wiping water is prevented from freezing in cold months and the use of frozen windscreen-wiper water is prevented.
  • Wax expansion elements are already known, which are used for washing-water container heatings of this type, in order to heat the washing water to a desired temperature and keep it thermally controlled. These wax expansion elements have a housing portion in which the wax is provided. As soon as a cooling of the wiping water and therefore of the wax occurs, the wax changes to a solid form, with the result that reduction in volume takes place. A valve is opened via a piston, so that a heating medium can be flow through the valve and it becomes possible for the wiping water in the washing-water container to be heated. As soon as a set temperature is reached, the valve closes.
  • wax expansion elements for the control of hot-water container heatings have the disadvantage that high forces are built up during the liquefaction of the wax, the result of which is that an overcompensation of the closing movement of the valve is required in order to prevent a break-out of the housing parts or damage to the housings and inoperability.
  • these elements At the start of the heating period, these elements have high inertia, and, at the end of the heating period, there is the problem of the forces which build up sharply and which may result in damage to the housing. Overlift compensation is therefore necessary. This leads to a larger construction space.
  • the object on which the invention is based is, therefore, to provide a device for opening and closing a passage orifice present in a housing, the said device allowing a sensitive regulation of a passage orifice for a heating medium and being cost-effective in terms of production.
  • the device for opening and closing a passage orifice provided in a housing having a supply duct leading to the passage orifice and a discharge duct following the passage orifice, with a closing body which opens and closes the passage orifice and determines the throughflow quantity of a heating medium which is provided for heating a medium which at least partially surrounds the device, characterized in that the closing body is activated by an actuation element comprising a thermal head having a space filled with gaseous medium and closed by means of a diaphragm.
  • the device according to the invention has the advantage that, in order to control the throughflow quantity flowing through a passage orifice, a closing body is provided, the opening and closing movement of which is activated via an actuation element comprising a thermal head having a gas-filled space which is closed by means of a diaphragm. Activation is thereby afforded, in which the control of the throughflow quantity becomes possible at least within a state of aggregation of the sensor medium. Furthermore, by the closing body being integrated at least partially on or with the thermal head, a compact type of construction is afforded. Owing to the use of the thermal head as an actuation element, overcompensation during a closing movement is not required, as compared with wax expansion elements known hitherto. As a result, the structural unit can be simplified and can therefore be produced cost-effectively.
  • the closing body to be provided, in the direction of flow of the heating medium, in a regulating space which follows the passage orifice and from which the discharge duct branches off.
  • This arrangement and refinement affords a compact type of construction.
  • the thermal head may be adjacent to the regulating space or at least partially engage into this.
  • the arrangement of the at least one supply duct and at least one discharge duct to have the configuration of a corner version, in which the discharge duct and the supply duct are arranged at right angles to one another.
  • This refinement likewise makes it possible also to have a parallel version in which the supply duct and the discharge duct are arranged so as to run parallel in the housing or their connection orifices are oriented parallel to one another.
  • the closing body of the device advantageously has a guide portion which is received by a housing portion of the thermal head.
  • a reduction in the components can thereby be achieved, since the thermal head has to be fastened to the housing and this fastening portion advantageously at the same time forms, on the inner circumference, the housing portion which guides the closing body.
  • the closing body is arranged perpendicularly to the diaphragm which is provided in the thermal head. A maximum force effect can thereby act on the closing body via the diaphragm. Thus, even slight changes of the gas volume in the thermal head can be transmitted to the opening and closing travel of the closing body.
  • an end face of the closing body for the maximum transmission of closing force to the closing body via the diaphragm, there is advantageously provision for an end face of the closing body, the said end face pointing toward the diaphragm, to comprise at least one third of the area of the diaphragm face.
  • the area and the pressure are proportional to one another for force transmission, with the result that this arrangement allows high force transmission and therefore a reliable closing of the passage orifice.
  • the closing body prefferably has a shoulder which delimits the guide portion and which engages behind the housing portion receiving the guide portion.
  • the closing body can thereby be held captive in the thermal head, thus affording simple and rapid assembly.
  • the closing body To protect the thermal head, there is advantageously provision for the closing body to have at least one annular element which is arranged between the thermal head and a discharge duct branching off from the regulating space.
  • This element not only assumes a protective function, but can also at least seal off the regulating space.
  • this annular element may also serve for assisting the guidance of the closing body in the thermal head.
  • the regulating space may also be provision for the regulating space to have a guide portion which cooperates with a guide portion of the closing body.
  • a guide portion in the thermal head may be dispensed with or be additionally provided.
  • the sealing element on the closing body, the said sealing element delimiting the regulating space, is advantageously received in a peripheral groove and is designed as an annular element.
  • heat-resistant O-ring seals are provided, the material of which is adapted to the type of heating medium and to the ambient temperature.
  • the thermal head is positioned on the housing with respect to the regulating space, at least one sealing element being interposed. Further leaktightness is thereby achieved.
  • this sealing element which is preferably designed as an O-ring seal, may serve as an anti-twist device, in order to prevent an unwanted release of the thermal housing.
  • the closing body has a closing face which points towards the passage orifice and which bears against the valve seat of the supply duct.
  • This closing face may lie in an end face of the closing body, the said end face being formed parallel to the passage orifice, so that the closing body bears to blocking against a shoulder of the passage orifice and closes the passage orifice.
  • the closing face and a valve seat in the passage orifice may be of stepped, conical or tapered design or to be designed as ball valve. A sealing-off arrangement can thereby be afforded.
  • the closing body is guided and centred in a closed position.
  • the closing body advantageously to be of 1-part design, to have a guide portion for arrangement in the thermal head and to comprise, opposite the latter, a closing face pointing toward the passage orifice. This can give rise to a reduction in the components and to a direct force transmission which leads, in turn, to a sensitive opening and closing movement.
  • the closing body preferably has a regulating element which operates counter to the thermal head.
  • This regulating element is advantageously designed as a regulating spring or opening spring.
  • this regulating element is provided in the regulating space and to surround a reception portion of the closing body, the said reception portion being provided between a closing face and a guide portion of the closing body.
  • the regulating element engages, for example, on a shoulder which surrounds the passage orifice or is adjacent thereto, and is supported, near the guide portion of the closing body, on a further shoulder.
  • the regulating element to engage on an end face of the closing body, the said end face being assigned to the passage orifice, the regulating element in this case being arranged in a chamber of the supply duct.
  • the diaphragm, the gas or sensor medium or the regulating element to be coordinated with one another and to be adapted to the heating temperature of the medium surrounding the device, so that the heating of the medium is ensured.
  • the diaphragm face or the end face of the closing body may also be taken into account in order to achieve an opening movement of the valve only beyond a defined temperature or in order to provide a minimum force for maintaining the closing position of the closing body.
  • the closing body is preferably produced from a thermally non-conductive material. A reliable closing function can thereby be ensured.
  • Plastic or a composite plastic material may be used, which constitutes a cost-effective solution.
  • ceramic or similar materials may also be used for producing the closing body.
  • the housing is produced from a material having low thermal conductivity.
  • a material having low thermal conductivity for this purpose, in particular, ceramic material or composite material, plastic or a composite plastic material is provided.
  • the housing can thereby be produced in a simple way as an injection moulding.
  • insert parts may be provided in the housing for the connections of the supply and discharge lines for mounting on the supply and discharge duct, so that a cost-effective production of the housings is afforded in a two-component injection-moulding method.
  • plug and/or snap connections may also be provided.
  • the supply line advantageously has a spiral or helical configuration directly in front of the housing, in order to heat the medium by means of the heating medium.
  • the housing there is provision for using a material having high thermal conductivity.
  • a material having high thermal conductivity For example, metallic materials my be employed.
  • aluminium or aluminium alloys which have a low weight are employed.
  • the housing acts at the same time as a heating body, so that a direct supply of the heating medium via a supply line is afforded.
  • These housings may likewise be of compact or slightly larger design, in order to serve as heating bodies and to have a heat storage capacity.
  • FIG. 1 shows a diagrammatic illustration of an application example, using the device according to the invention
  • FIG. 2 shows a diagrammatic enlarged sectional illustration of the device according to the invention
  • FIG. 3 shows a diagrammatic enlarged illustration of an alternative embodiment of the device according to the invention
  • FIG. 4 shows a diagrammatic enlarged sectional illustration of a further alternative embodiment of the device according to the invention
  • FIG. 5 shows a diagrammatic enlarged sectional illustration of a further alternative embodiment of the device according to the invention
  • FIG. 6 shows a diagrammatic enlarged sectional illustration of a further alternative embodiment of the device according to the invention.
  • FIG. 7 shows a diagrammatic enlarged sectional illustration of a further alternative embodiment of the device according to the invention.
  • FIG. 8 shows a diagrammatic illustration of an alternative embodiment of the invention in an application example according to FIG. 1 .
  • FIG. 1 illustrates diagrammatically an application example of the use of the device 11 according to the invention.
  • This application example shows a washing-water container 12 which is filled with a liquid, oily or gel-like medium 14 , for example with washing water, to the filling-level height illustrated.
  • a line portion 16 is illustrated, from which the washing water is extracted and led to the intended location.
  • the device 11 opens and closes a heating circuit for a heating medium which is led via a supply line 18 to the washing-water container 12 belonging to the device 11 and which is supplied to a heating source 21 via a discharge line 19 .
  • the heating source 21 may be a heat exchanger which is part of an engine block and through which cooling water flows.
  • the heating source 21 may likewise be part of the interior heating for a vehicle, this illustrated heating circuit being supplied via a bypass line or the like.
  • the device 11 is designed as a compact embodiment which is described in more detail in FIG. 2 .
  • the supply line 18 comprises a heating coil 22 in order to carry out the heat exchange.
  • the arrangement illustrated is only in principle. Its actual arrangement is adapted to the installation situation, and at the same time care is taken to ensure that the device 11 is positioned at as low a point as possible in a washing-water container 12 , in order to control the heating even when there is only a slight residual quantity of washing water in the container.
  • the use of the device 11 is not restricted to washing-water container heating in motor vehicles.
  • This device 11 may be provided in any containers for receiving a liquid, oily or gel-like medium, in which it is desirable for the stored medium to have a defined temperature or to be heated to a desired temperature.
  • FIG. 2 illustrates a diagrammatic full cross section of the device 11 according to FIG. 1 .
  • a housing 26 has a supply duct 27 which has a passage orifice 29 leading to a regulating space 28 .
  • a discharge duct 31 branches off from the regulating space 28 , merges into the outlet orifice 69 and issues into the connecting line 19 .
  • a closing body 32 is provided, this comprises an end face 33 which bears to blocking against a shoulder 34 .
  • the shoulder 34 surrounds the passage orifice 29 .
  • the end face 33 at the same time comprises a closing face 36 which cooperates with the shoulder 34 and which forms a valve seat 37 .
  • the closing face 36 and the valve seat 37 may be of stepped, conical, unilaterally or bilaterally wavy or such like design.
  • the closing body 32 may comprise as closing face 36 a valve ball which bears, centred, in the valve seat 37 .
  • the closing body 32 has a shoulder 39 which delimits a guide portion 41 of the closing body 32 .
  • the shoulder 39 is arranged within an actuation element designed as a thermal head 42 and is assigned to an end face 43 adjoining a housing portion 46 which guides the guide portion 41 of the closing body 32 .
  • the shoulder 39 is arranged at least with a slight clearance in a closing position of the closing body 32 .
  • This housing portion 46 of the thermal head 42 has at the same time, on its outer circumference, a fastening portion 47 , via which the thermal head 42 is positioned with respect to the housing 26 , for example by means of a screw connection.
  • the regulating space 28 is sealed off via a sealing element 48 which is provided between the housing 26 and the housing portion 46 of the thermal head 42 .
  • the guide portion 41 of the closing body 32 is designed cylindrically. Alternatively, there may also be provision for guide regions to be provided in the form of portions. In addition, an anti-twist device may be arranged, in order to achieve an exclusive axial movement of the closing body 32 .
  • the guide portion 41 is delimited with respect to the regulating space 28 by means of an annular element 51 which may have sealing and/or guiding properties.
  • This element 51 is designed as an O-ring seal and is arranged in a groove 52 .
  • This element 51 serves at least for the prevention of deposits of dirt on the guide portion 41 .
  • a reception portion 54 is provided, which is designed for receiving a regulating element 56 .
  • This regulating element 56 is provided as a regulating spring or opening spring and allows the opening movement of the closing body 32 in the direction of the thermal head 32 .
  • the regulating element 56 may additionally comprise setting discs, such as, for example, washers or annular spacer elements, in order to vary the opening force of the regulating spring. The opening force of the regulating spring is increased by the addition of setting discs, and vice versa.
  • the thermal head 42 comprises a diaphragm 58 which closes a space 59 filled with a medium 61 . This filling takes place, for example via the filling tube 62 or by means of further filling techniques, with the result that an exact setting of the opening temperature or opening force for the closing body 32 can be carried out.
  • An end face 44 of the closing body 32 extends at least over one third of the diaphragm face, preferably over as large a fraction of the diaphragm face as possible, in order to achieve optimum force transmissions.
  • the end face 44 bears against the diaphragm 58 .
  • the diaphragm 58 is produced from metallic material.
  • the diaphragm 58 may advantageously be provided with a heat-insulating layer on the side pointing towards the closing body 32 , so that the opening temperature and therefore the opening time point of the valve are not influenced by the heating medium in the regulating space 28 .
  • the thermal head 42 is surrounded by the medium 14 to be heated. As soon as the predetermined temperature of the medium 14 is undershot, the gaseous medium 61 in the space 59 cools. A reduction in volume thereby takes place, with the result that the diaphragm can move resiliently towards the space 59 .
  • the regulating element 56 assists the opening movement of the closing body 32 which is enabled by the diaphragm 58 , with the result that heating medium flows through the passage orifice 29 via the supply line 18 .
  • the housing 36 has, for example, depressions 64 , 66 which are provided for the reception of connecting elements, in order to fix the supply line 18 and discharge line 19 to the housing 26 .
  • These connecting elements make it possible that those ends of the supply and discharge lines 18 , 19 which are positioned in an inlet orifice 68 and an outlet orifice 69 allow, without threads, media-tight bearing contact and reception. This affords a cost-effective connection possibility.
  • the housing 26 is designed as an injection moulding, there may be provision for insert parts or connecting elements to be integrated in the housing 26 .
  • FIG. 2 is illustrated as what is known as a corner version, that is to say the supply duct 27 is arranged at right angles to the discharge duct 31 . Further relative arrangements of the supply and discharge ducts 27 , 31 may be selected as a function of the installation situation. The supply and discharge ducts may likewise be interchanged in terms of their function.
  • FIG. 3 illustrates an alternative embodiment to FIG. 2 .
  • This embodiment differs from the embodiment according to FIG. 2 in that the supply and discharge ducts 27 , 31 are arranged parallel to one another.
  • One or other version may be advantageous as a function of the installation situation.
  • FIG. 4 illustrates an alternative embodiment to FIG. 3 .
  • the regulating element 56 is provided in a chamber 71 of the supply duct 27 .
  • the regulating element 56 engages on the end face 33 of the closing body 32 and is positioned in an annular groove 72 .
  • the reception portion 54 is thus displaced into the end face 33 of the closing body 32 .
  • the closing body 32 positioned in the regulating space 28 has an outer circumference which is designed to be only slightly smaller than the diameter of the regulating space 28 , so that only a small quantity of heating medium is provided in the regulating space 28 .
  • the closing body 32 may also be provision for the closing body 32 to be designed with a small volume in a region between the closing face 36 and the guide portion 41 , so that the regulating space 28 has a large reception volume for the heating medium, so that heat can be emitted for a longer period of time.
  • FIG. 5 illustrates a further alternative embodiment to FIGS. 2 and 3 .
  • the closing body 32 has an end face 33 comprising an annular elevation 35 which bears against the shoulder 34 in order to form a valve seat 37 .
  • the annular elevation 35 is of semicircular, V-shaped or hump-shaped design, as seen in cross section, or preferably has a rounding as a closing face 36 , with the result that a small sealing face is formed.
  • This arrangement has the advantage that a better leak tightness can be achieved, since this closing face 36 having the annular elevation 35 is susceptible to only a slight extent to soiling.
  • the closing face designed a rounding 36 has a radius of 0.1 mm to 10 mm.
  • the flanks adjoining it may be arranged in a V-shaped manner with respect to one another and, for example, form an angle of 30°to 160°.
  • a type of linear or small-area closing face 36 is afforded by the rounding, instead of a closing face 36 bearing in a planar manner against the shoulder 34 .
  • the valve seat illustrated in FIG. 5 may also be provided mirror-symmetrically, so that the elevation 35 is arranged on the shoulder 34 of the housing 26 and the end face 33 is, for example, of planar design.
  • a valve seat 37 of this type there is provision for the elevation 35 not to be designed annularly, but to comprise other geometries which may be adapted correspondingly to the geometry of the passage orifice 29 .
  • the elevation 35 may comprise a planar end face, a curved face, a semicircular or quarter-circle face or else a face having a radius.
  • the opposite face of the valve seat 37 may be designed identically or comprise a geometry deviating from this. At least a linear and/or small-area bearing contact is advantageous.
  • closing face 36 and the shoulder 34 may be designed with respect to one another in such a way that a centring function is afforded by the mutually contiguous faces of the valve seat 37 .
  • the geometry of the closing face 36 and shoulder 34 may be conceived according to the abovementioned examples or by any desired linear profiles adapted to one another.
  • the elevation 35 provided on the closing face 36 and/or on the shoulder 34 may be provided in one piece on the closing body 32 and the housing 26 or, for example, be designed as a separate part and be connected to the closing body 32 and/or the housing 26 non-positively and/or positively and/or in a materially integral manner.
  • an adhesive or press connection of insert parts which have the elevation 35 may be provided.
  • the device 11 illustrated in FIG. 6 constitutes an alternative embodiment to the preceding embodiments, and is designed, merely by way of example, as a parallel version.
  • the closing body 32 has, on its end face a closing face 36 which is designed as a rounding. This rounding may be designed as a segment of a circle or else comprise an elliptic shape or a non-constant curvature.
  • a shoulder 34 of the valve seat 37 has a complementary geometry to the closing face 36 .
  • Such a rounding of the closing face 34 may be of convex or concave design, the opposite closing face 36 being adapted.
  • This refinement has the advantage that, after closing, the closing body 32 rests in a secured closing position and separates the passage between the supply duct 27 and the discharge duct 31 .
  • one closing face may be rounded and for the opposite closing face to be of tapered or wedged-shaped design.
  • one closing face may have a rounded and a tapered or wedge-shaped portion and to bear against an opposite shoulder which has at least one face portion for leaktight and centred reception.
  • This alternative embodiment has, furthermore, the advantage that, owing to a closing body 32 of shortened design, a compact configuration and a device 11 having a small build are achieved.
  • the sealing element 51 and the associated groove 52 have not been provided. A reduction in parts may thereby become possible thus allowing a cost-effective configuration and rapid assembly of the device 11 .
  • This embodiment comprises only a housing 26 , a closing body 32 arranged in the thermal head 42 , a spring element 56 and a sealing element 48 .
  • This shortened arrangement has, furthermore, the advantage that thermal separation takes place on account of narrow tolerances between the fastening portion 47 and the guide portion 41 of the closing body 32 .
  • a suitable opening characteristic can thereby be achieved, without an over-sensitive opening and closing of the valve being obtained.
  • thermal separation with respect to the thermal head 42 and to the gaseous medium 61 provided in it can take place.
  • the thermal head 42 or the gaseous medium 61 can be activated solely by the ambient temperature.
  • the medium 61 provided preferably in the space 59 of the thermal head 42 changes its state of aggregation between liquid and gaseous.
  • FIG. 7 illustrates an alternative embodiment to FIG. 6 .
  • the shoulder 34 is rounded concavely and the closing body 32 bears with a wedge-shaped or tapered closing face 36 against the shoulder 34 .
  • the arrangement of the wedge-shaped or tapered closing face 36 may be also be provided on the shoulder 34 , in which case the closing body 36 has at its front end a concave rounding which bears against the wedge-shaped or tapered shoulder.
  • both the shoulder 34 and the closing face 36 are designed concavely, thus affording a type of linear contact and sealing-off in the valve seat.
  • FIGS. 1 to 7 Both this device according to the invention and the further devices 11 described in FIGS. 1 to 7 have the advantage that they operate in an energy-free manner. Only the temperature difference in the surrounding region determines the opening and closing time point of the closing body 32 . Such regions can be set and adapted, as desired, as a function of the type of filling medium and of the pressure in the space 59 . In addition, an adaptation of the restoring spring 56 by means of the selected spring force may be advantageous.
  • FIG. 8 illustrates a diagrammatic set-up similar to that of FIG. 1 . Contrary to FIG. 1 , the housing 26 is illustrated as a heating body and has, for example, an elongate tubular portion 76 which comprises the supply duct 27 .
  • This housing 26 makes it possible to arrange the regulating element 56 in the same way as in the embodiments according to FIGS. 2 and 3 or according to FIG. 4 .
  • the embodiment according to FIG. 4 may be modified to the effect that the supply duct 27 is arranged in the prolongation of the chamber 71 .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Water Supply & Treatment (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Temperature-Responsive Valves (AREA)
US11/066,596 2004-02-26 2005-02-25 Device for opening and closing a passage orifice present in a housing Abandoned US20050230424A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102004009890.5 2004-02-26
DE102004009890 2004-02-26
DE102004056828.6 2004-11-24
DE102004056828 2004-11-24

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US (1) US20050230424A1 (fr)
CN (1) CN1661270A (fr)
FR (1) FR2866937B1 (fr)

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CN109728376B (zh) * 2017-10-30 2021-12-14 杭州三花研究院有限公司 板组件及电池组件

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US6145753A (en) * 1997-03-11 2000-11-14 Fujikoki Corporation Expansion valve
US6296194B1 (en) * 1999-01-13 2001-10-02 Tgk Co., Ltd. Expansion valve
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20163374A1 (it) * 2016-05-12 2017-11-12 Autotest Suedtirol Srl Valvola termica
WO2017194678A1 (fr) * 2016-05-12 2017-11-16 Autotest Spa Ag Soupape thermostatique

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FR2866937B1 (fr) 2007-03-16
FR2866937A1 (fr) 2005-09-02
CN1661270A (zh) 2005-08-31

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