WO1999006781A1 - Latent heat storage device for use in a vehicle - Google Patents

Latent heat storage device for use in a vehicle Download PDF

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Publication number
WO1999006781A1
WO1999006781A1 PCT/EP1997/004648 EP9704648W WO9906781A1 WO 1999006781 A1 WO1999006781 A1 WO 1999006781A1 EP 9704648 W EP9704648 W EP 9704648W WO 9906781 A1 WO9906781 A1 WO 9906781A1
Authority
WO
WIPO (PCT)
Prior art keywords
latent heat
switch
cooling water
heat storage
storage device
Prior art date
Application number
PCT/EP1997/004648
Other languages
German (de)
French (fr)
Inventor
Albert Genster
Hansjürgen Kech
Horst-Georg Schmalfuss
Gerhard Hunnekuhl
Original Assignee
Wilo Gmbh
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 Wilo Gmbh filed Critical Wilo Gmbh
Priority to PCT/EP1997/004648 priority Critical patent/WO1999006781A1/en
Priority to AU47736/97A priority patent/AU4773697A/en
Publication of WO1999006781A1 publication Critical patent/WO1999006781A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00492—Heating, cooling or ventilating [HVAC] devices comprising regenerative heating or cooling means, e.g. heat accumulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • F28D20/028—Control arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F01P2011/205—Indicating devices; Other safety devices using heat-accumulators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Definitions

  • the invention relates to a latent heat store for the cooling water circuit of a motor vehicle internal combustion engine with an interior containing a storage medium that changes from a solid to a liquid state and vice versa and changes its volume.
  • the object of the invention is to detect the state of charge of the latent heat store in the simplest possible way and to control the devices belonging to the latent heat store, in particular a pump, according to the state of charge.
  • a sensor, switch or valve is connected to or in the interior of the latent heat accumulator, which sensor is controlled / influenced by the volume changes.
  • cooling water circuit can be controlled by the sensor, the switch or the valve.
  • a static latent heat store with, in particular a salt hydrate as a meltable storage medium has a receiving space (interior) for the storage medium which is traversed by channels, in particular pipes, which form heat exchange surfaces and through which cooling water flows.
  • a sensor, switch or valve In the receiving space (interior) of the storage medium, a sensor, switch or valve is fastened inside and / or on the wall of the space, which is controlled / influenced by the pressure in the interior.
  • the Pressure changes due to changes in volume of the storage medium during the change from the liquid to the solid state and vice versa are used.
  • the sensor, switch or valve are set in such a way that registration / switching always takes place when the state of aggregation changes.
  • the respective state of aggregation thus directly controls the cooling circuit precisely insofar as it influences the latent heat storage or the latent heat storage the cooling circuit.
  • the valve is preferably used directly in the cooling water circuit or in a bypass or a secondary line of the cooling water circuit and, if a sensor or switch is selected, the cooling water circuit, in particular a pump in the cooling water circuit or in the bypass / in the secondary line, is controlled directly or via an electronic control device.

Abstract

The invention relates to a latent heat storage device for use on the cooling-water circuit of a vehicle combustion engine with an interior space containing a storage medium, which passes from a solid to a liquid phase and vice versa, resulting in a volume change, whereby a volume change-controlled/affected sensor, switch or valve is connected to the interior space, either at the edge thereof or inside, of said latent heat storage device.

Description

Latentwärmespeicher für ein KraftfahrzeugLatent heat storage for a motor vehicle
Die Erfindung betrifft einen Latentwärmespeicher für den Kühlwasserkreislauf eines Kraftfahrzeug- Verbrennungsmotors mit einem Innenraum, der ein Speichermedium enthält, das von einem festen in einen flüssigen Zustand und umgekehrt wechselt und hierbei sein Volumen ändert.The invention relates to a latent heat store for the cooling water circuit of a motor vehicle internal combustion engine with an interior containing a storage medium that changes from a solid to a liquid state and vice versa and changes its volume.
Es ist bekannt, in den Kühlwasserkreislauf eines Kraftfahrzeugs einen Latentwärmespeicher zu schalten, der während der Fahrt vom Kühlwasser aufgeheizt wird und beim Kaltstart das Kühlwasser erwärmt, um den Verbrennungsmotor möglichst früh auf die Arbeitstemperatur zu bringen und hierdurch den Motor zu schonen, die Emissionen zu verringern und die Wirkung der Kraftfahrzeug-Heizung früher zu haben. Hierbei ist es auch bekannt, den Latentwärmespeicher in den Kühlwasserkreislauf nur zeitweilig je nach seinem Wärmezustand einzuschalten.It is known to switch a latent heat store into the cooling water circuit of a motor vehicle, which is heated up by the cooling water while driving and heats the cooling water during a cold start in order to bring the internal combustion engine up to the working temperature as early as possible and thereby protect the engine and reduce emissions and to have the effect of automobile heating earlier. It is also known here to switch on the latent heat store in the cooling water circuit only temporarily, depending on its heat condition.
BESW1GUNGSK0PIE Aufgabe der Erfindung ist es, den Ladezustand des Latentwärmespeichers auf möglichst einfache Weise zu erfassen und nach dem Ladezustand die zum Latentwärmespeicher gehörenden Einrichtungen, insbesondere eine Pumpe, zu steuern.CLEARANCE COPY The object of the invention is to detect the state of charge of the latent heat store in the simplest possible way and to control the devices belonging to the latent heat store, in particular a pump, according to the state of charge.
Die Aufgabe wird erfindngsgemäß dadurch gelöst, daß am oder im Innenraum des Latentwärmespeichers ein Sensor, Schalter oder Ventil angeschlossen ist, der/das durch die Volumenänderungen gesteuert/beeinflußt wird.The object is achieved according to the invention in that a sensor, switch or valve is connected to or in the interior of the latent heat accumulator, which sensor is controlled / influenced by the volume changes.
Da der Ladezustand des Wärmespeichers an dem Volumen des Speichermediums sehr genau erkennbar ist, wird durch das sich ändernde Volumen auf einfache Weise ein Sensor, Schalter oder Ventil mit hoher Betriebssicherheit beeinflußt bzw. betätigt. Hierbei besteht ein besonders geringer konstruktiver Aufwand.Since the state of charge of the heat accumulator can be recognized very precisely on the volume of the storage medium, a sensor, switch or valve with a high level of operational reliability is influenced or actuated in a simple manner by the changing volume. This involves a particularly low design effort.
Vorzugsweise wird vorgeschlagen, daß durch den Sensor, den Schalter oder das Ventil der Kühlwasserkreislauf steuerbar ist .It is preferably proposed that the cooling water circuit can be controlled by the sensor, the switch or the valve.
Ausführungsbeispiele der Erfindung werden im folgenden näher beschrieben:Exemplary embodiments of the invention are described in more detail below:
Ein statischer Latentwärmespeicher mit, insbesondere einem Salzhydrat als schmelzfähiges Speichermedium, besitzt einen Aufnahmeraum (Innenraum) für das Speichermedium, der von Kanälen, insbesondere Rohren durchzogen ist, die Wärmetauschflächen bilden und von dem Kühlwasser durchflössen sind.A static latent heat store with, in particular a salt hydrate as a meltable storage medium, has a receiving space (interior) for the storage medium which is traversed by channels, in particular pipes, which form heat exchange surfaces and through which cooling water flows.
Im Aufnahmeraum (Innenraum) des Speichermediums ist innen und/oder an der Wand des Raums ein Sensor, Schalter oder Ventil befestigt, der/das durch den Druck im Innenraum gesteuert/beeinflußt ist. Hierbei werden die Druckänderungen aufgrund der Volumenänderungen des Speichermediums während des Wechsels vom flüssigen in den festen Zustand und umgekehrt ausgenutzt. Der Sensor, Schalter oder das Ventil sind so eingestellt, daß ein Registrieren/Umschalten stets beim Wechsel des Aggregatzustandes erfolgt.In the receiving space (interior) of the storage medium, a sensor, switch or valve is fastened inside and / or on the wall of the space, which is controlled / influenced by the pressure in the interior. Here, the Pressure changes due to changes in volume of the storage medium during the change from the liquid to the solid state and vice versa are used. The sensor, switch or valve are set in such a way that registration / switching always takes place when the state of aggregation changes.
Damit steuert der jeweilige Aggregatzustand direkt exakt den Kühlkreislauf, soweit dieser den Latentwärmespeicher oder der Latentwärmespeicher den Kühlkreislauf beeinflußt. Das Ventil ist vorzugweise direkt im Kühlwasserkreislauf oder in einem Bypass oder einer Nebenleitung des Kühlwasserkreislaufes eingesetzt und bei Wahl eines Sensors oder Schalters wird direkt oder über eine elektronische Steuereinrichtung der Kühlwasserkreislauf, insbesondere eine Pumpe im Kühlwasserkreislauf oder im Bypass/in der Nebenleitung gesteuert . The respective state of aggregation thus directly controls the cooling circuit precisely insofar as it influences the latent heat storage or the latent heat storage the cooling circuit. The valve is preferably used directly in the cooling water circuit or in a bypass or a secondary line of the cooling water circuit and, if a sensor or switch is selected, the cooling water circuit, in particular a pump in the cooling water circuit or in the bypass / in the secondary line, is controlled directly or via an electronic control device.

Claims

Ansprüche Expectations
1. Latentwärmespeicher für den Kühlwasserkreislauf eines Kraftfahrzeug-Verbrennungsmotors mit einem Innenraum, der ein Speichermedium enthält, das von einem festen in einen flüssigen Zustand und umgekehrt wechselt und hierbei sein Volumen ändert, d a d u r c h ek e n n z e i c h n e t, daß am oder im Innenraum des Latentwärmespeichers ein Sensor, Schalter oder Ventil angeschlossen ist, der/das durch die Volumenänderungen gesteuert/beeinflußt wird.1. latent heat store for the cooling water circuit of a motor vehicle internal combustion engine with an interior containing a storage medium that changes from a solid to a liquid state and vice versa and thereby changes its volume, characterized by the fact that a sensor on or in the interior of the latent heat store, Switch or valve is connected, which is controlled / influenced by the volume changes.
2. Latentwärmespeicher nach Anspruch 1 , d a- d u r c h g e k e n n z e i c h n e t, daß durch den Sensor, den Schalter oder das Ventil der Kühlwasserkreislauf steuerbar ist. 2. Latent heat accumulator according to claim 1, d a- d u r c h g e k e n n z e i c h n e t that the cooling water circuit is controllable by the sensor, the switch or the valve.
PCT/EP1997/004648 1997-07-31 1997-07-31 Latent heat storage device for use in a vehicle WO1999006781A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP1997/004648 WO1999006781A1 (en) 1997-07-31 1997-07-31 Latent heat storage device for use in a vehicle
AU47736/97A AU4773697A (en) 1997-07-31 1997-07-31 Latent heat storage device for use in a vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1997/004648 WO1999006781A1 (en) 1997-07-31 1997-07-31 Latent heat storage device for use in a vehicle

Publications (1)

Publication Number Publication Date
WO1999006781A1 true WO1999006781A1 (en) 1999-02-11

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Country Status (2)

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AU (1) AU4773697A (en)
WO (1) WO1999006781A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20321889U1 (en) 2002-08-02 2012-03-12 Glaxosmithkline Biologicals S.A. vaccine composition
DE102011101858A1 (en) * 2011-05-18 2012-11-22 Robert Bosch Gmbh Method for determining a heat energy stored in a latent heat storage with a phase change material and method for controlling a heating / air conditioning
CH708711A1 (en) * 2013-10-10 2015-04-15 Rep Ip Ag Isolation time determining device for a heat-insulating container.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2744468A1 (en) * 1977-10-03 1979-04-05 Philips Patentverwaltung Heat storage system using heat accumulating material - contains transporting medium remaining liq. over entire temp. range
US4445566A (en) * 1981-03-16 1984-05-01 Karsten Laing Latent heat storage means
JPH0244237A (en) * 1988-08-03 1990-02-14 Kubota Ltd Determination of heat storage residue for heat storage apparatus
US5299630A (en) * 1991-11-09 1994-04-05 Oskar Schatz Method of rapidly heating a mass to an operative temperature, in particular a vehicle engine during cold starting
EP0599205A1 (en) * 1992-11-20 1994-06-01 Mazda Motor Corporation Automotive heating system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2744468A1 (en) * 1977-10-03 1979-04-05 Philips Patentverwaltung Heat storage system using heat accumulating material - contains transporting medium remaining liq. over entire temp. range
US4445566A (en) * 1981-03-16 1984-05-01 Karsten Laing Latent heat storage means
JPH0244237A (en) * 1988-08-03 1990-02-14 Kubota Ltd Determination of heat storage residue for heat storage apparatus
US5299630A (en) * 1991-11-09 1994-04-05 Oskar Schatz Method of rapidly heating a mass to an operative temperature, in particular a vehicle engine during cold starting
EP0599205A1 (en) * 1992-11-20 1994-06-01 Mazda Motor Corporation Automotive heating system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 204 (P - 1042) 25 April 1990 (1990-04-25) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20321889U1 (en) 2002-08-02 2012-03-12 Glaxosmithkline Biologicals S.A. vaccine composition
DE102011101858A1 (en) * 2011-05-18 2012-11-22 Robert Bosch Gmbh Method for determining a heat energy stored in a latent heat storage with a phase change material and method for controlling a heating / air conditioning
CH708711A1 (en) * 2013-10-10 2015-04-15 Rep Ip Ag Isolation time determining device for a heat-insulating container.
WO2015051474A1 (en) * 2013-10-10 2015-04-16 Rep Ip Ag Insulation-time determining device for a thermally insulated container
US10823497B2 (en) 2013-10-10 2020-11-03 Rep Ip Ag Insulation-time determining device for a thermally insulated container

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Publication number Publication date
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