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WO2003036185A1 - Clapet a deux voies et systeme de ventilation pour vehicule - Google Patents

Clapet a deux voies et systeme de ventilation pour vehicule Download PDF

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Publication number
WO2003036185A1
WO2003036185A1 PCT/NL2002/000673 NL0200673W WO03036185A1 WO 2003036185 A1 WO2003036185 A1 WO 2003036185A1 NL 0200673 W NL0200673 W NL 0200673W WO 03036185 A1 WO03036185 A1 WO 03036185A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
valve body
channel
way valve
shape
Prior art date
Application number
PCT/NL2002/000673
Other languages
English (en)
Inventor
Jan Cornelis Bruggeman
Johannes Wilhelmus Maria Gijrath
Original Assignee
Nederlandse Organisatie Voor Toegepast- Natuurwetenschappelijk Onderzoek Tno
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 Nederlandse Organisatie Voor Toegepast- Natuurwetenschappelijk Onderzoek Tno filed Critical Nederlandse Organisatie Voor Toegepast- Natuurwetenschappelijk Onderzoek Tno
Publication of WO2003036185A1 publication Critical patent/WO2003036185A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise

Definitions

  • the invention relates to a two-way valve, in particular for a ventilation system of a vehicle, the valve being provided with an operable valve body arranged, in a first and a second valve position, respectively, to place a first and a second channel, respectively, into fluid communication with a third channel.
  • valve is known from practice.
  • the valve body can be brought into the first or second valve position, in order that a desired fluid flow can take place between the first or second channel on the one hand and the third channel on the other hand.
  • Operation of the valve body can take place in different ways, for instance by means of an operating mechanism connected to the valve body, with which operation can be carried out manually and/or automatically.
  • the first channel may be intended, for instance, for air supply from an environment, the second channel for air supply from a passenger space of the vehicle, and the third channel for air supply to this passenger space.
  • the known two-way valve when a fan is arranged downstream of the valve, which is common, for instance, in a vehicle ventilation system.
  • the amount of aerodynamic noise produced by the fan has been found to depend typically on the amount of noise produced by the two-way valve, which can lead to a considerable total amount of noise produced by the valve and the fan.
  • the invention has for its object to remove the disadvantages of the two-way valve of the type described in the opening paragraph, while retaining the advantages thereof.
  • the invention has for its object to provide a low-noise two-way valve.
  • the two-way valve according to the invention is characterized in that the valve body is arranged to form a substantially gradual connection between a wall of the first and second channel, respectively, and a wall of the third channel when the valve body is in the first and the second valve position, respectively.
  • the body When the valve body is in the first valve position, the body forms a substantially gradual connection between the wall of the first channel and the wall of the third channel while these channels have been placed into fluid communication with each other. As a result, fluid can flow between these two channels with relatively little noise being produced in the two- way valve, since the connection established by the valve is substantially gradual.
  • the valve body When the valve body is in the second valve position, the same is achieved for a fluid flow between the second and the third channel.
  • the wording 'a substantially gradual connection' may be understood to mean, for instance, a smooth connection where parts of the valve body extending along the flowing fluid include substantially no large kinks, relatively abrupt bends, large angles, projections extending into the flowing fluid, relatively large openings, or the like.
  • this wording encompasses a connection such that areas of contact and attachment of the valve body with/to the walls of the channels have a substantially smooth configuration, with the valve body linking up substantially smoothly with a wall of the channels.
  • the use of the two-way valve provided by the invention is particularly advantageous when downstream of the valve a fan is arranged. Since this valve, during use, produces relatively little noise, the fan will produce relatively little noise, at least in the case where such noise depends on the noise produced by the valve.
  • an additional advantage of the two-way valve according to the invention is that the use of this valve is favorable from a viewpoint of efficiency of a fluid pump connected to the channels, such as a fan. This is because the present valve body can constitute a relatively small flow resistance between the channels due to the above-mentioned substantially gradual connection. Accordingly, of the pumping power exerted by the fluid pump on a fluid to be pumped through the channels, relatively little is lost under the influence of the resistance of this valve body.
  • the valve body is arranged to change during operation from a first to a second valve shape, and vice versa, which first and second valve shape, respectively, is such that the valve body in the first and the second valve position, respectively, forms a substantially gradual connection between the first and the second channel, respectively, and the third channel.
  • This valve body may be of relatively simple and inexpensive design and, for instance, be fitted between the channels to control the fluid flow.
  • the valve body is at least partly made of flexible material for the purpose of the change in valve shape.
  • the valve body can be made of a substantially rigid material at a free end, while the remaining part of the valve body is made substantially of flexible material.
  • the valve body may be made substantially completely of flexible material, so that an excellent gradual connection can be obtained.
  • the valve body may, conversely, be made substantially of flexible material at a free end, while the remaining part of the valve body is made substantially of a rigid material.
  • the valve body may further comprise at least two valve body segments movably, in particular hingedly or pivotally, joined together for the purpose of obtaining the above change of shape.
  • the valve body may, for instance, comprise a number of plate-shaped plastic elements interconnected with film hinges.
  • the valve body is bistable, such that it can toggle from one valve shape to the other.
  • a bistable valve body can easily toggle from one valve shape to the other.
  • the bistable body may be designed as a body of which the first valve shape is a substantially concave and convex shape, respectively, when the valve body is in the first valve position and viewed from the first and the second channel, respectively, while the second valve shape is a substantially convex and concave shape, respectively, when the valve body is in the second valve position and viewed from the first and the second channel, respectively.
  • the valve body is hingedly connected to a channel wall located opposite the third channel, so that the valve body can be easily moved from one valve position to the other through a hinging movement.
  • valve body is arranged to cooperate, during operation, with the wall of the third channel for the purpose of changing the valve body from one valve shape to the other.
  • the valve shape of the valve body can be easily changed to obtain the right valve shape.
  • the valve can thus be designed with relatively few component parts.
  • the valve is provided with electromagnetic means arranged to change the valve shape of the valve body by exerting an electromagnetic force on the valve body.
  • Electromagnetic means are easily operable and typically less susceptible to wear than mechanical operating means. Use can be made of, for instance, one or more electromagnets and/or fixed magnets.
  • the valve body can be made, for instance, of a magnetic material and/or a suitable metal. Besides electromagnetic means, the valve may for instance be provided with other means to adjust the valve shape, such as a pneumatic operating mechanism.
  • the valve body is designed as a valve body operatively rotatable about a rotation axis from one valve position to the other, the valve body being shaped such that the valve body in the first and second valve position, respectively, forms the substantially gradual connection between the walls of the first and the second channel, respectively, and the third channel.
  • valve body may, for instance, comprise a substantially sohd body having the shape mentioned.
  • valve body may be, for instance, of substantially spherical design and be provided with at least one passage, which passage connects the first and second channel, respectively, and the third channel with each other when the valve body is in the first and second valve position, respectively, the passage extending through the valve body such that the passage forms a gradual connection between the channels.
  • the valve body in the first and/or second valve position is shaped such that a fluid channel part bounded at least by the valve body has a substantially constant diameter.
  • the first and/or second channel may have substantially the same diameter as the third channel.
  • the first, second and/or third channel is provided with a fluid pump, in particular a low-noise centrifugal fan.
  • a fluid flow can be effected in the first, second and/or third channel and channels connected thereto.
  • a fluid flow can be effected in the first, second and/or third channel and channels connected thereto.
  • a low-noise centrifugal fan as described in Dutch patent application
  • NL 1017423 is advantageous when the fluid comprises a gas or gas mixture, such as air, since through the combination of such a fan and the two-way valve according to the present invention a very low-noise gas flow can be achieved.
  • the invention provides a ventilation system of a vehicle, provided with a two-way valve according to any one of claims 1-19. By using this two-way valve in the ventilation system, the vehicle can be ventilated by the system while this can give rise to only very little disturbing, unpleasant valve noise of the two-way valve. If the system is provided with a fan placed downstream of this valve, the fan too can only produce relatively little aerodynamic noise during use.
  • Fig. 1 shows a cross-section of a first exemplary embodiment of the invention, with the valve body in a first valve position
  • Fig. 2 shows a similar cross-section to Fig. 1, with the valve body in an intermediate position
  • Fig. 3 shows a similar cross-section to Fig. 1, with the valve body in a second valve position;
  • Fig. 4 shows a detail Q of the cross-section shown in Fig. 3;
  • Fig. 5 shows a cross-section of a second exemplary embodiment of the invention, with the valve body in the first valve position
  • Fig. 6 shows a similar cross-section to Fig. 5, with the valve body in the second valve position
  • Fig. 7 shows a cross-section of a third exemplary embodiment of the invention, with the valve body in a first valve position
  • Fig. 8 shows a similar cross-section to Fig. 7, with the valve body in a second valve position
  • Fig. 9 shows an assembly of a two-way valve and a centrifugal fan.
  • Figs. 1-4 show a two-way valve for placing a first channel 1 and a second channel 2, respectively, into communication with a third channel 6.
  • the valve and the channels 1, 2, 6 are shown in cross-section.
  • the first and the second channel 1 and 2, respectively, are each provided with a curved lower wall part 8 and 9, respectively, which merges into a wall 10 of the third channel 6.
  • the curved lower wall parts 8, 9 form fixed, gradual connections between the walls of the channels 1, 2, 6.
  • the valve is provided with an operable valve body 4, which is hinged to a hinge point 5 located between the upper wall parts 3, 7 and opposite the third channel 6.
  • the valve body 4 is made of flexible material, for instance of flexible plastic, rubber, or the like.
  • Fig. 1 shows the valve body 4 in a first valve position 4a, in which it places the first channel 1 into fluid communication with the third channel 6.
  • the flexible valve body 4 is bent so as to form a substantially gradual connection between the wall 7 of the first channel 1 and the wall 10 of the third channel 6.
  • the valve body 4 can be pivoted from the first position 4a to an intermediate valve position 4b shown in Fig. 2.
  • the valve body is substantially unbent.
  • the valve body 4c shown in Fig. 3, in which it is bent so as to form a substantially gradual connection between the wall 3 of the second channel 2 and the wall 10 of the third channel 6.
  • this valve is relatively low-noise during use.
  • the edges of the valve body 4 link up with the walls of the channels 1, 2, 6 in a substantially fluid-tight manner when the valve body 4 is in the first and second valve position 4a, 4c, respectively, so that the second channel 2 and the first channel 1, respectively, can be closed by the valve body 4 in a substantially fluid-tight manner with the body 4 in the first and second valve position 4a, 4c, respectively.
  • Operation of the valve body 4 may take place, for instance, through operating means not shown. These means may comprise an operating mechanism with or without an operating motor. The operation may further be carried out with, for instance, electromagnetic means.
  • valve body 4 cooperates with the walls, so that the valve body obtains the desired shape. This is shown in more detail in Fig. 4.
  • the valve body 4 is pressed against the wall 10 of the third channel 6, which results in a bending of the valve body until the body has obtained the second valve shape 4c.
  • valve body 4 is arranged between the channels 1, 2, 6 so as to be rotatable about a rotation axis R.
  • the rotation axis R runs along a center line of the third channel 6.
  • the valve body 4 can therefore be rotated from one valve position to the other valve position 4a, 4c.
  • the valve body is shaped such that the valve body in the first and second valve position, respectively, forms the substantially gradual connection between the walls 7, 3 of the first channel 1 and the second channel 2, respectively, and the third channel 6.
  • the valve body 4 may be made of, for instance, a relatively strong, rigid material.
  • Figs. 7 and 8 show a third exemplary embodiment, provided with a spherical valve body 14 arranged between the first channel 1, the second channel 2 and third channel 6 so as to be rotatable about a rotation axis P.
  • This rotation axis P is at right angles to the plane of the channels 1, 2, 6 and intersects a center of the valve body 14.
  • the valve body 14 is provided with a passage 15 connecting the first channel 1 and the third channel 6 when the valve body 14 in the first valve position 14a shown in Fig. 7.
  • the valve body 14 can be rotated to a second valve position 14c shown in Fig. 8, in which the passage 15 connects the second channel 2 with the third channel 6.
  • the passage 15 extends through the valve body 14, such that the passage 15 forms a substantially gradual connection between the channels 1, 2, 6, thus providing a low-noise connection between the channels 1, 2, 6.
  • a relatively low-noise two-way valve connection between three channels can be obtained.
  • a combination of this low-noise valve with a low-noise centrifugal fan is very advantageous when used in a ventilation system for a vehicle.
  • Fig. 9 shows this combination, where a centrifugal fan 16 is connected to a valve according to the exemplary embodiment shown in Figs. 1-4 in the place of the third channel 6 shown in those Figures.
  • the fan can pump air from the first channel 1 and the second channel 2, respectively, to an outlet channel 17, depending on the position of the valve body 4 of the valve.
  • the valve body 4 in each case forms a substantially gradual connection between the wall of a channel 1, 2 and the wall 19 of an inlet 18 of the fan 16, so that the valve produces relatively little noise during use of the combination shown.
  • first, second and third channel at least adjacent the two- way valve, may extend substantially in the same plane or in two or three different planes.
  • the channels may be provided with a circular, angular or differently shaped cross-section.
  • the cross-sections of the first, second and third channels may be equal to each other or may be different from each other.
  • valve body may be provided with different means for bringing the body into the first or second valve shape.
  • the valve body may be provided with memory metal, the valve body assuming the first and the second valve shape in a respective first and second memory condition of the memory metal.
  • a number of the two-way valves according to the invention may be placed in cascade with or without intermediate connecting channels, so that more than three channels can be connected to each other, in a substantially low-noise manner.
  • the valve body 4 besides being bendable, may also be, for instance, bistable. The body may then be brought into a stable valve shape through cooperation with a wall of a channel during operation, or in a different manner.
  • valve may be provided with a valve housing, which surrounds the valve body partly or completely.
  • the valve housing may, for instance, comprise a part of each of the channels 1, 2, 6.
  • Such a valve housing may further be, for instance, detachably coupled to channel walls of remaining parts of the channels 1, 2, 6, so that the valve can be relatively easily removed from between the channels, for instance for repair or replacement.
  • each channel 1, 2, 6 may comprise, for instance, a number of channel parts that extend each other, which channel parts are fixedly or detachably joined together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Check Valves (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

L'invention concerne un clapet à deux voies, en particulier pour un système de ventilation d'un véhicule. Ce clapet comprend un corps de clapet opérationnel conçu, dans une première position et dans une seconde position, respectivement, pour mettre un premier et un second passages, respectivement, en communication fluidique avec un troisième passage. le corps de clapet (4; 14) étant conçu de manière à former une connexion sensiblement progressive entre une paroi (8 et 9, respectivement) du premier (1) et du second (2) passages, respectivement, et une paroi (10) du troisième passage (6) lorsque le corps de valve (4; 14) se trouve dans la première (4a; 14a) et dans la seconde (4c; 14c) positions, respectivement. En outre, l'invention concerne un système de ventilation pour véhicule, pourvu d'un clapet à deux voies.
PCT/NL2002/000673 2001-10-24 2002-10-24 Clapet a deux voies et systeme de ventilation pour vehicule WO2003036185A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1019222A NL1019222C2 (nl) 2001-10-24 2001-10-24 Tweewegklep, alsmede een ventilatiesysteem van een voertuig.
NL1019222 2001-10-24

Publications (1)

Publication Number Publication Date
WO2003036185A1 true WO2003036185A1 (fr) 2003-05-01

Family

ID=19774201

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2002/000673 WO2003036185A1 (fr) 2001-10-24 2002-10-24 Clapet a deux voies et systeme de ventilation pour vehicule

Country Status (2)

Country Link
NL (1) NL1019222C2 (fr)
WO (1) WO2003036185A1 (fr)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1218827B (de) * 1961-10-11 1966-06-08 Carl Hamacher Kommanditgesells Rohrweiche, insbesondere fuer Betonfoerderleitungen
JPS6138345A (ja) * 1984-07-30 1986-02-24 Matsushita Electric Ind Co Ltd 空気調和機の風向制御装置
US4597415A (en) * 1985-07-23 1986-07-01 Donaldson Company, Inc. Integrated lever and live spring valve
DE3717676A1 (de) * 1987-05-26 1988-12-08 Bayerische Motoren Werke Ag Fahrzeugheiz- oder klimaanlage
US5016856A (en) * 1990-05-08 1991-05-21 Tartaglino Jerry J Inflatable bladder for control of fluid flow
EP0732231A1 (fr) * 1995-03-15 1996-09-18 Adam Opel Ag Dispositif de chauffage, d'aération ou de climatisation pour véhicule automobile
RU2067263C1 (ru) * 1992-02-03 1996-09-27 Василий Васильевич Онищенко Переключатель потока
JPH09243151A (ja) * 1996-03-04 1997-09-16 Shinko Kogyo Co Ltd ダンパ装置
FR2766130A1 (fr) * 1997-07-15 1999-01-22 Valeo Climatisation Dispositif de ventilation d'un habitacle, notamment de vehicule automobile, a debit d'air exterieur controle par des moyens d'entrainement mecaniques
US5899805A (en) * 1997-10-20 1999-05-04 United Technologies Corporation Distribution damper valve
EP0936387A1 (fr) * 1997-12-19 1999-08-18 Xerox Corporation Clapet à volet instable pour le contrÔle du débit
JPH11316045A (ja) * 1998-04-30 1999-11-16 Setsuko Arai 可変冷温風ミキシング分岐ダクト装置
US6007421A (en) * 1997-09-26 1999-12-28 Valeo Climatisation Temperature control device

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1218827B (de) * 1961-10-11 1966-06-08 Carl Hamacher Kommanditgesells Rohrweiche, insbesondere fuer Betonfoerderleitungen
JPS6138345A (ja) * 1984-07-30 1986-02-24 Matsushita Electric Ind Co Ltd 空気調和機の風向制御装置
US4597415A (en) * 1985-07-23 1986-07-01 Donaldson Company, Inc. Integrated lever and live spring valve
DE3717676A1 (de) * 1987-05-26 1988-12-08 Bayerische Motoren Werke Ag Fahrzeugheiz- oder klimaanlage
US5016856A (en) * 1990-05-08 1991-05-21 Tartaglino Jerry J Inflatable bladder for control of fluid flow
RU2067263C1 (ru) * 1992-02-03 1996-09-27 Василий Васильевич Онищенко Переключатель потока
EP0732231A1 (fr) * 1995-03-15 1996-09-18 Adam Opel Ag Dispositif de chauffage, d'aération ou de climatisation pour véhicule automobile
JPH09243151A (ja) * 1996-03-04 1997-09-16 Shinko Kogyo Co Ltd ダンパ装置
FR2766130A1 (fr) * 1997-07-15 1999-01-22 Valeo Climatisation Dispositif de ventilation d'un habitacle, notamment de vehicule automobile, a debit d'air exterieur controle par des moyens d'entrainement mecaniques
US6007421A (en) * 1997-09-26 1999-12-28 Valeo Climatisation Temperature control device
US5899805A (en) * 1997-10-20 1999-05-04 United Technologies Corporation Distribution damper valve
EP0936387A1 (fr) * 1997-12-19 1999-08-18 Xerox Corporation Clapet à volet instable pour le contrÔle du débit
JPH11316045A (ja) * 1998-04-30 1999-11-16 Setsuko Arai 可変冷温風ミキシング分岐ダクト装置

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section PQ Week 199720, Derwent World Patents Index; Class Q74, AN 1997-224763, XP002202218 *
PATENT ABSTRACTS OF JAPAN vol. 010, no. 193 (M - 496) 8 July 1986 (1986-07-08) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 01 30 January 1998 (1998-01-30) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 02 29 February 2000 (2000-02-29) *

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