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DE3603379A1 - Stationary-vehicle heater for a vehicle with an internal combustion engine containing a fresh gas feed - Google Patents

Stationary-vehicle heater for a vehicle with an internal combustion engine containing a fresh gas feed

Info

Publication number
DE3603379A1
DE3603379A1 DE19863603379 DE3603379A DE3603379A1 DE 3603379 A1 DE3603379 A1 DE 3603379A1 DE 19863603379 DE19863603379 DE 19863603379 DE 3603379 A DE3603379 A DE 3603379A DE 3603379 A1 DE3603379 A1 DE 3603379A1
Authority
DE
Germany
Prior art keywords
internal combustion
combustion engine
fresh gas
vehicle
burner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19863603379
Other languages
German (de)
Inventor
Arthur Ing.(grad.) 3300 Braunschweig Schneider
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Priority to DE19863603379 priority Critical patent/DE3603379A1/en
Publication of DE3603379A1 publication Critical patent/DE3603379A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
    • F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
    • F02N19/06—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines by heating of combustion-air by flame generating means, e.g. flame glow-plugs
    • 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
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2203—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/04—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
    • F02M31/042—Combustion air
    • 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
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H2001/2268—Constructional features
    • B60H2001/2281—Air supply, exhaust systems
    • 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
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H2001/2268—Constructional features
    • B60H2001/2293—Integration into other parts of a vehicle
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

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

Abstract

In order to use the stationary-vehicle heater, containing a burner (3), for the passenger compartment of a vehicle, for simultaneous preheating of the fresh gas of an internal combustion engine (9), the burner pipe (2) which carries the exhaust gases of the burner (3) can be connected, as a function of operating conditions, on the output side to the fresh gas feed (8) of the internal combustion engine (9) via a switch-over flap (11) which is also assigned to an external air pipe (5). <IMAGE>

Description

Standheizung für ein Fahrzeug mit einer eine Parking heater for a vehicle with a one

Frischgaszufuhr enthaltenden Brennkraftmaschine Die Erfindung betrifft eine Fahrzeug-Standheizung gemäß dem Oberbegriff des Patentanspruchs 1. Internal combustion engine containing fresh gas supply The invention relates to a vehicle auxiliary heater according to the preamble of claim 1.

Derartige mit einem Brenner, in dem der auch zum Antrieb des Fahrzeugs verwendete Kraftstoff verbrannt wird, ausgerüstete Standheizungen, wie sie beispielsweise bei dem VW-Personenkraftwagen des Typs 412 Einsatz gefunden haben, bieten gegenüber üblichen Heizungen, die über Wärmetauscher im Kühlwasser bzw. in den Abgasen der Brennkraftmaschine enthaltene Wärmeenergie ausnutzen, den Vorteil, daß unabhängig von dem Vorhandensein von Abwärme der Brennkraftmaschine Heizenergie zur Verfügung steht.Such with a burner, which is also used to drive the vehicle The fuel used is burned, parking heaters equipped, such as those used for example in the VW passenger cars of the type 412 were used usual heaters that use heat exchangers in the cooling water or in the exhaust gases Take advantage of the thermal energy contained in the internal combustion engine, the advantage of being independent from the presence of waste heat from the internal combustion engine, heating energy is available stands.

Niedrige Außentemperaturen bereiten aber nicht nur hinsichtlich der Aufheizung des Fahrzeuginnenraums beim Fehlen einer derartigen Zusatzheizung Schwierigkeiten, sondern auch beim Starten der Brennkraftmaschine, insbesondere im Fall eines Dieselmotors. Daher ist es bekannt - siehe nur die DE-OS 21 20 785, F02M 31/00 -, in der Frischluftzufuhr der Brennkraftmaschine eine Vorrichtung zur Verbrennung von Kraftstoff anzuordnen, deren heiße Abgase mit der Verbrennungsluft der Brennkraftmaschine zugeführt werden. Wie in der genannten Literaturstelle ausgeführt, bietet diese "aktive" Vorheizung der Verbrennungsluft den Vorteil, daß die Maschine, in dem dort behandelten Fall eine Dieselmaschine, auch bei relativ niedriger Ver- dichtungsverhältnis startwillig ist, also die mit einer Erhöhung des Verdichtungsverhältnisses und damit der Verdichtungstemperatur verbundenen Nachteile, wie relativ starkes Nageln und enge Fertigungstoleranzen, vermieden werden können. Ergänzend sei darauf hingewiesen, daß im Idealfall bei Vorhandensein einer derartigen Vorheizung des Frischgases auf die bei Dieselmaschinen üblichen Glühkerzen verzichtet werden kann und auch eine Direkteinspritzung, also unter Vermeidung von Vorkammern, Einsatz finden kann.However, low outside temperatures cause difficulties not only in terms of heating up the vehicle interior in the absence of such additional heating, but also when starting the internal combustion engine, in particular in the case of a diesel engine. It is therefore known - see only DE-OS 21 20 785, F02M 31/00 - to arrange a device for burning fuel in the fresh air supply of the internal combustion engine, the hot exhaust gases of which are supplied with the combustion air of the internal combustion engine. As stated in the cited reference, this "active" preheating of the combustion air offers the advantage that the machine, in the case dealt with there, a diesel machine, even at relatively low fuel consumption. sealing ratio is willing to start, so the disadvantages associated with an increase in the compression ratio and thus the compression temperature, such as relatively strong nailing and tight manufacturing tolerances, can be avoided. In addition, it should be pointed out that, in the ideal case, when such preheating of the fresh gas is present, the glow plugs customary in diesel engines can be dispensed with and direct injection can also be used, i.e. avoiding antechamber.

Zur Abrundung des Stands der Technik sei auf die DE-OS 16 01 410, F02M 31/06, hingewiesen, aus der es bekannt ist, eine in Abhängigkeit von der Außenlufttemperatur oder dem Druck in der Frischgaszufuhr der Brennkraftmaschine betätigte Umschaltvorrichtung zwischen einer Kaltluftzufuhr und einer Warmluftzufuhr zu einem Vergaser einer Brennkraftmaschine vorzusehen.To round off the prior art, refer to DE-OS 16 01 410, F02M 31/06, from which it is known, one as a function of the outside air temperature or the pressure in the fresh gas supply of the internal combustion engine actuated switching device between a cold air supply and a warm air supply to a carburetor of an internal combustion engine to be provided.

Der Erfindung liegt die Aufgabe zugrunde, bei einem mit einer Standheizung der beschriebenen Art versehenen Fahrzeug mit minimalem Aufwand Möglichkeiten zur Frischgasaufheizung zu schaffen.The invention is based on the object in one with a parking heater the type described provided vehicle with minimal effort options for To create fresh gas heating.

Die erfindungsgemäße Lösung dieser Aufgabe besteht in den kennzeichnenden Merkmalen des Patentanspruchs 1, vorteilhafte Aus- und Weiterbildungen der Erfindung beschreiben die Unteransprüche.The inventive solution to this problem consists in the characterizing Features of claim 1, advantageous designs and developments of the invention describe the subclaims.

Bei der Erfindung wird also der ohnehin für die Standheizung, d.h. zur Aufheizung des Fahrgastraums des Fahrzeugs, vorhandene Brenner zugleich zur Vorheizung des Frischgases der Brennkraftmaschine ausgenutzt, indem bei Vorliegen entsprechender Betriebsbedingungen - niedrige Außentemperatur, hoher Unterdruck in der Frischgaszufuhr - die Ab gasleitung des Brenners mit der Frischgaszufuhr unter gleichzeitiger Verringerung der Zuströmung von Außenluft in die Frischgaszufuhr verbunden wird.In the invention, the already used for the auxiliary heater, i. for heating the passenger compartment of the vehicle, existing burners at the same time for Preheating of the fresh gas of the internal combustion engine is used by, if present corresponding operating conditions - low outside temperature, high negative pressure in the fresh gas supply - the exhaust pipe of the burner with the fresh gas supply while at the same time reducing the inflow of outside air into the fresh gas supply connected.

Ein Ausführungsbeispiel der Erfindung für den Fall einer Dieselmaschine wird im folgenden anhand der Zeichnung erläutert, die einen Längsschnitt durch die hier interessierenden Teile der Standheizung und der Brennkraftmaschine wiedergibt.An embodiment of the invention in the case of a diesel engine is explained below with reference to the drawing, which is a longitudinal section through the reproduces parts of the auxiliary heater and the internal combustion engine that are of interest here.

Der Luftfilter 1 üblicher und daher nicht zu beschreibender Bauart speist sowohl das Brennerrohr 2, in dem der von Standheizungen bekannte und daher ebenfalls nicht zu beschreibende Brenner 3 mit dem Gebläse 4 angeordnet ist, und das parallel zum Brennerrohr 2 verlaufende Außenluft-Rohr 5; sowohl das Brennerrohr 2, das in Strsmungsrichtung hinter dem Brenner 3 eine Abgasleitung für diesen darstellt, als auch das Außenluftrohr 5 besitzen Anschlüsse 6 bzw. 7 für die Frischgaszufuhr 8 der Brennkraftmaschine 9. Die beiden Rohre 2 und 5 verlaufen parallel unmittelbar nebeneinander und sind durch die Zwischenwand 10 getrennt, an deren motorseitiges Ende die Umschaltklappe 11 angelenkt ist, die in an sich bekannter Weise in Abhängigkeit von äußeren Betriebsbedingungen zwischen einer ersten, in der Figur dargestellten Lage, in der sie die Kaltluftzufuhr zur Brennkraftmaschine 9 unterbindet, in eine zweite Endlage kontinuierlich oder schlagartig bewegbar ist, in der sie die Warmluftzufuhr zur Brennkraftmaschine 9 verhindert.The air filter 1 of the usual and therefore not to be described type feeds both the burner tube 2, in which the one known from parking heaters and therefore not either The burner 3 to be described is arranged with the fan 4 is, and the outside air pipe 5, which runs parallel to the burner pipe 2; both that Burner tube 2, which in the flow direction behind the burner 3 is an exhaust pipe for represents this, as well as the outside air pipe 5 have connections 6 and 7 for the fresh gas supply 8 of the internal combustion engine 9. The two pipes 2 and 5 run parallel directly next to each other and are separated by the partition 10, at the end on the engine side, the switchover flap 11 is articulated, which in itself known way, depending on external operating conditions between a first, in the position shown in the figure, in which they the cold air supply to the internal combustion engine 9 prevents it can be moved continuously or suddenly into a second end position, in which it prevents the supply of hot air to the internal combustion engine 9.

Der Brenner 3 dient aber auch zur Erzeugung von Wärmeenergie, die über zumindest einen Wärmetauscher 12 zur Heizung des Fahrgastraums dienen soll. In Strömungsrichtung hinter dem Wärmetauscher 12 befindet sich demgemäß ein Abgasauslaß für die vom Brenner 3 erzeugten Abgase. Damit bei dem in der Zeichnung vorausgesetzten Betrieb der Brennkraftmaschine 9 allein mit vorgewärmter Verbrennungsluft und relativ niedrigem Druck (starkem Unterdruck) in der Frischgaszufuhr 8 von diesem Abgasauslaß hinter dem Wärmetauscher 12 her keine Kaltluft angesaugt wird, befindet sich in dem den Wärmetauscher 12 enthaltenden Teil 13 des Brennerrohrs 2 die Rückschlagklappe 14.The burner 3 is also used to generate thermal energy that is intended to be used via at least one heat exchanger 12 for heating the passenger compartment. Accordingly, there is an exhaust gas outlet downstream of the heat exchanger 12 in the direction of flow for the exhaust gases generated by the burner 3. So with what is assumed in the drawing Operation of the internal combustion engine 9 solely with preheated combustion air and relatively low pressure (strong negative pressure) in the fresh gas supply 8 from this exhaust outlet behind the heat exchanger 12, no cold air is drawn in, is located in the part 13 of the burner tube 2 containing the heat exchanger 12, the non-return valve 14th

Die Erfindung bietet mithin die Möglichkeit, mit minimalem zusätzlichen Aufwand eine übliche, zur Fahrgastraumheizung dienende Standheizung so zu erweitern, daffi sie zugleich zur Frischgasvorwårmung der Antriebsmaschine des Fahrzeugs dienen kann. Dabei kann die im Verhältnis zum Kraftstoffbedarf der Brennkraftmaschine sehr geringe Kraftstoffmenge für den Brenner gegebenenfalls elektrisch vorgeheizt werden.The invention thus offers the possibility with minimal additional Expenditure to expand a standard heater used for passenger compartment heating in such a way that that they also serve to preheat the engine of the vehicle with fresh gas can. This can be very high in relation to the fuel requirement of the internal combustion engine If necessary, a small amount of fuel for the burner can be electrically preheated.

- Leere'ite -- Void'ite -

Claims (6)

PATENTANSPRÜCHE 1. Mit einem Brenner und zumindest einem Wärmetauscher in der Abgasleitung Gesselben ausgerüstete Standheizung für ein Fahrzeug mit einer eine Frischgaszufuhr enthaltenden Brennkraftmaschine, dadurch gekennzeichnet, daß die Frischgaszufuhr (8) sowohl einen Anschluß (7) für Außenluft als auch einen Anschluß (6) an die Abgasleitung (2) des Brenners (3) aufweist und eine Umschaltvorrichtunc (11) für die beiden Anschlüsse (6,7) vorgesehen ist. PATENT CLAIMS 1. With a burner and at least one heat exchanger In the exhaust pipe of the same equipped auxiliary heater for a vehicle with a an internal combustion engine containing a fresh gas supply, characterized in that the fresh gas supply (8) has both a connection (7) for outside air and a connection (6) to the exhaust pipe (2) of the burner (3) and a switching device (11) is provided for the two connections (6,7). 2. Standheizung nach Anspruch 1, dadurch gekennzeichnet, daß in dem den Wärmetauscher (12) enthaltenden Teil (13) der Abgasleitung (2) eine Rückschlagklappe (14) angeordnet ist.2. Auxiliary heater according to claim 1, characterized in that in the the part (13) of the exhaust pipe (2) containing the heat exchanger (12) has a non-return valve (14) is arranged. 3. Standheizung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein aemeirsamer Luftfilter (1) einem den Brenner (3) enthaltenden Brennerrohr (2) I~nc einem neben diesem verlaufenden, zum Außenluft-Anschluß (7) führenden Woeiteren Rohr (5) vorgeschaltet ist und an einer Zwischenwand (i0) zwischen seide Rohren (2,5) eine Umschaltklappe (11) angelenkt ist.3. Auxiliary heater according to claim 1 or 2, characterized in that an aemeirsamer air filter (1) a burner tube (2) containing the burner (3) I ~ nc a pipe running next to this, leading to the outside air connection (7) Tube (5) is connected upstream and on an intermediate wall (i0) between silk tubes (2.5) a reversing flap (11) is articulated. 4. Standheizung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Umschaltvorrichtung (11) in Abhängigkeit von der Lufttemperatur betätigt wird.4. Parking heater according to one of claims 1 to 3, characterized in that that the switching device (11) is operated as a function of the air temperature will. 5. Standheizung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Umschaltvorrichtung (11) in Abhängigkeit von einer Temperatur der Brennkraftmaschine (9) betätigt wird.5. Parking heater according to one of claims 1 to 4, characterized in that that the switching device (11) as a function of a temperature of the internal combustion engine (9) is operated. 6. Standheizung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Umschaltvorrichtung (11) in Abhängigkeit vom Druck in der Frischgaszufuhr (8) betätigt wird.6. Parking heater according to one of claims 1 to 5, characterized in that that the switching device (11) as a function of the pressure in the fresh gas supply (8) is actuated.
DE19863603379 1985-02-13 1986-02-05 Stationary-vehicle heater for a vehicle with an internal combustion engine containing a fresh gas feed Withdrawn DE3603379A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863603379 DE3603379A1 (en) 1985-02-13 1986-02-05 Stationary-vehicle heater for a vehicle with an internal combustion engine containing a fresh gas feed

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3504902 1985-02-13
DE19863603379 DE3603379A1 (en) 1985-02-13 1986-02-05 Stationary-vehicle heater for a vehicle with an internal combustion engine containing a fresh gas feed

Publications (1)

Publication Number Publication Date
DE3603379A1 true DE3603379A1 (en) 1986-08-14

Family

ID=25829359

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863603379 Withdrawn DE3603379A1 (en) 1985-02-13 1986-02-05 Stationary-vehicle heater for a vehicle with an internal combustion engine containing a fresh gas feed

Country Status (1)

Country Link
DE (1) DE3603379A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0263369A1 (en) * 1986-10-02 1988-04-13 Klöckner-Humboldt-Deutz Aktiengesellschaft Air-preheating device for an internal-combustion engine
EP1013997A2 (en) * 1998-12-24 2000-06-28 Toyota Jidosha Kabushiki Kaisha Internal combustion engine with combustion heater
WO2008068203A1 (en) * 2006-12-06 2008-06-12 Robert Bosch Gmbh Vehicle with an internal combustion engine for ethanol-containing fuels, and an engine-independent air heating system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0263369A1 (en) * 1986-10-02 1988-04-13 Klöckner-Humboldt-Deutz Aktiengesellschaft Air-preheating device for an internal-combustion engine
EP1013997A2 (en) * 1998-12-24 2000-06-28 Toyota Jidosha Kabushiki Kaisha Internal combustion engine with combustion heater
EP1013997A3 (en) * 1998-12-24 2001-10-17 Toyota Jidosha Kabushiki Kaisha Internal combustion engine with combustion heater
US6497224B2 (en) 1998-12-24 2002-12-24 Toyota Jidosha Kabushiki Kaisha Internal combustion engine with combustion heater
WO2008068203A1 (en) * 2006-12-06 2008-06-12 Robert Bosch Gmbh Vehicle with an internal combustion engine for ethanol-containing fuels, and an engine-independent air heating system
US8371274B2 (en) 2006-12-06 2013-02-12 Robert Bosch Gmbh Vehicle with an internal combustion engine for ethanol-containing fuels, and an auxiliary heater

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