DE3215342A1 - Storage of heat from the cooling medium and engine oil on internal combustion engines - Google Patents

Storage of heat from the cooling medium and engine oil on internal combustion engines

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Publication number
DE3215342A1
DE3215342A1 DE19823215342 DE3215342A DE3215342A1 DE 3215342 A1 DE3215342 A1 DE 3215342A1 DE 19823215342 DE19823215342 DE 19823215342 DE 3215342 A DE3215342 A DE 3215342A DE 3215342 A1 DE3215342 A1 DE 3215342A1
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Germany
Prior art keywords
engine
oil
heat
coolant
thermally insulated
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Withdrawn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
DE19823215342
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German (de)
Inventor
Peter Dr. 8000 München Haslbeck
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Haslbeck Peter Dr 8137 Berg De
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19823215342 priority Critical patent/DE3215342A1/en
Publication of DE3215342A1 publication Critical patent/DE3215342A1/en
Withdrawn legal-status Critical Current

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/001—Heating
    • 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
    • F01P11/20—Indicating devices; Other safety devices concerning atmospheric freezing conditions, e.g. automatically draining or heating during frosty weather
    • 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
    • F02N19/10—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines by heating of engine coolants
    • 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
    • F01P3/00—Liquid cooling
    • F01P2003/001—Cooling liquid
    • F01P2003/003—Cooling liquid having boiling-point higher than 100°C
    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P2005/105—Using two or more pumps
    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P5/12—Pump-driving arrangements
    • F01P2005/125—Driving auxiliary pumps electrically
    • 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
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
    • 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

Abstract

System for the storage of heat from the coolant and/or the engine oil in internal combustion engines, characterised in that a major proportion of the coolant and/or engine oil is stored in a heat-insulated vessel (11, 12) when the engine (13) is switched off, in that the solenoid valves (14-17) separate the heat-insulated part of the circuit by closing of the cooling part. When the engine is restarted the electrically controlled solenoid valves reopen so that the engine can be started with preheated cooling medium and/or engine oil. <IMAGE>

Description

Wärmespeicherung des Kühlmediums und/oder Motoröls bei Verbrennunqs-Heat storage of the cooling medium and / or engine oil in the event of combustion

kraftmaschinen Patentansprüche Die vorliegende Erfindung bezieht sich auf eine Einrichtung zum Speichernder Kühlmittel-und/oder Motorölwärme,welche bei einem erneutem Start nach mehreren Stunden, wie er bei mehr als 70 °Ó aller Fahrten auftritt , zur Verfügung steht.engine claims The present invention relates to a device for storing the coolant and / or engine oil heat, which at a restart after several hours, as is the case with more than 70 ° Ó of all journeys occurs, is available.

Durch das Deutsche Gebrauchsmuster GM 74 35 061 bzw. 74 35 061.1 ist ein System zur Wärmespeicherung des Kühlwassers bekanntgeworden.By the German utility model GM 74 35 061 or 74 35 061.1 is a system for heat storage of the cooling water became known.

Diese Erfindung hat den Nachteil, daß sie als Zielsetzung nur den Verschleiß des Motors mindern und die Heizbereitschaft des Kraftfahrzeuges beschleunigen will. Deshalb wurde zur Wärmespeicherung nur der Kühlwasserkreislauf und nicht auch der Ölkreislauf herangezogen, was erhebliche Nachteile bezüglich Kraftstoffverbrauch und Abgasemissionswerte in der Startphase mit sich bringt.This invention has the disadvantage that it has only the objective Reduce wear on the engine and accelerate the vehicle's readiness for heating want. Therefore, only the cooling water circuit was used for heat storage and not too the oil circuit is used, which has significant disadvantages in terms of fuel consumption and exhaust emission values in the starting phase.

Ferner ist der Wärmespeicher nicht direkt, sondern parallel und gänzlich zusätzlich zum Kühlwasserkreislauf geschaltet, was deutlich Funktions- und Gewichtsnachteile mit sich bringt.Furthermore, the heat accumulator is not direct, but parallel and complete switched in addition to the cooling water circuit, which has significant functional and weight disadvantages brings with it.

Die in der DE 30 19 786 A 1 beschriebene " Einrichtung zur Wärmespeicherheizungen bei Fahrzeugen " benutzt festes Wärmespeichermaterial (Mg 0), wobei im Gegensatz zu dieser Erfindung weniger der Speichereffektder Wärme, als das rasche Aufheizen des Speichermaterials über die Abgase und/oder elektrische Widerstandsheizung erfolgt.The "device for heat storage heating systems described in DE 30 19 786 A1 in vehicles "uses solid heat storage material (Mg 0), whereas in contrast about this invention less the storage effect of the heat than the rapid heating of the storage material takes place via the exhaust gases and / or electrical resistance heating.

Dies hat den Nachteil, daß das System vergleichsweise lange Aufheizzeiten in Kauf nehmen muß, daß es sehr schwer baut und relativ bruchempfindlich ist. Zielsetzung ist lediglich eine schnellere Heizbereitschaft des Kfz und keine Maßnahmen zur Verbesserung des Kraftstoffverbrauches, der Abgasemission, des Fahrkomforts (Beschleunigungsruckeln, Gasannahme nach Kaltstart) und des Motorverschleißes, des Kaltstartnagelns und der Starterleichterung bei tiefen Temperaturen erfolgen.This has the disadvantage that the system takes comparatively long heating times must accept that it is very difficult to build and relatively fragile. Goal setting is only a faster heating readiness of the vehicle and no measures for improvement fuel consumption, exhaust emissions, driving comfort (acceleration jerks, Throttle response after cold start) and engine wear, cold start nails and the Start easier at low temperatures.

Es ist bekannt, daß Verbrennungsraftmbscninen beim Raltstart folgende gravierende Nachteile gegenüber einem Warmstart haben: - höherer Kraftstoffverbrauch:während der ersten 2 km ca. 200; während der ersten 10 km ca. 13090.It is known that combustion engines have the following when starting up have serious disadvantages compared to a warm start: - higher fuel consumption: during the first 2 km approx. 200; during the first 10 km approx. 13090.

70S aller Fahrten sind Kurzstrecken- und Stadtfahrten, wobei das Fahrzeug zwischen Abstellen und erneutem Start meist völlig auf Umgebungstemperatur auskühlt - hohe Abgasemission in der Start- und Warmlaufphase. Bei heutigem Entwicklungsstand der abgasgereinigten Konzepte entstehen bereits 80 bis 90N aller verbleibenden Schadstoffe in der Warmlaufphase - keine Heizbereitschaft des Heizsystems in den ersten Minuten nach dem Start, so z. B. zum sofortigen Enteisen der Scheiben, aus Temperaturkomfortgründen, Sicherheit usw. 70S of all trips are short-haul and city trips, whereby the Vehicle usually completely at ambient temperature between parking and restarting cools down - high exhaust emissions in the start-up and warm-up phase. At the current level of development The exhaust-gas-cleaned concepts already produce 80 to 90N of all remaining pollutants During the warm-up phase - the heating system is not ready for heating in the first few minutes after the start, e.g. B. for immediate de-icing of the windows, for reasons of temperature comfort, Security etc

- größerer Motorverschleiß - schlechterer Fahrkomfort bezüglich Gasannahme, Beschleunigungaruckeln usw.- greater engine wear - poorer driving comfort in terms of throttle response, Acceleration jerks, etc.

- Kaltstartnageln bei Dieselmotoren - Startschwierigkeiten bei tiefen Temperaturen.- Cold start nails with diesel engines - Starting difficulties with deep ones Temperatures.

Gemäß der Erfindung werden diese Nachteile dadurch vermieden, daß durch die Speicherung der beim Abstellen des Motors im Kühlmittel- und dlkreislauf vorhandenen Wärme mittels Thermosgefäßen und Wärmeisolierung unter Ausnutzung der vorhandenen Volumina ein Großteil der Wärme gespeichert wird und beim erneuten Start vorgewärmt zur Verfügung steht.According to the invention, these disadvantages are avoided in that by storing the information in the coolant and oil circuit when the engine is switched off existing heat by means of thermos vessels and thermal insulation using the a large part of the heat is stored and when the system is started again is available preheated.

Nach Abstellen des Motors schließen die Ventile 14 - 17 und sperren somit den wärmeisolierten Teil des Kühlmittel- bzw. Ulkreislaufes wärmedicht ab. Dieser wärmeisolierte Teil enthält erfindungsgemäß neben dem Thermosgefäß (11, 12) ein Ausgleichsgefäß, welches ebenfalls zur Wärmespeicherung genutzt wird, oder ganz entfällt, falls es in dem Thermosgefäß integriert ist, Zuführungsleitungen und Wärmetauscher des Heizsystems, Im blkreislauf besteht der wärmeisolierte Teil aus einem zusätzlichen, wärmeisolierten Gefäß und/oder der wärmeisolierten dz wanne oder einem Teil davon.After the engine has been switched off, valves 14 - 17 close and block thus the heat-insulated part of the coolant or Ulkreislaufes is heat-tight. According to the invention, this heat-insulated part contains, in addition to the thermos vessel (11, 12) an equalizing tank, which is also used for heat storage, or entirely not applicable, if it is integrated in the thermos, supply lines and heat exchanger of the heating system, in the circuit the heat-insulated part consists of an additional, thermally insulated vessel and / or the thermally insulated dz tub or part of it.

Bei Motoren mit Trockensumpfschmierung wird der blvorratsbehälter als Wärmespeicher verwendet Beim Betätigen des Türschlosses bzw. des Zündschlosses öffnen die elektromagnetisch betätigten Absperrventile (14 - 17). Durch konvektionelle Strömung und durch die im Kreislauf vorhandene Zwangsströmung durch die Wasser- und/bzw. ölpumpe und evtl. zusätzliche elektrische Pumpen (23 und 24) fließt das jeweilige Fluid in den Kreislauf ein und erwärmt den Motor. Hierbei ist die Kühlmittel führung so gestaltet, daß das heiße Kühlmedium aus dem Wärmespeicher zuerst die für den Startvorgang wichtigen Teile, z.B. des Ansaugtraktes, des Zylinderkopfes und der Kolbenlaufflächen durchströmt und erwärmt, bevor es sich im übrigen Motor durchmischt und abkühlt. Ebenso wird das gespeicherte, heiße Motoröl direkt an den Ansaugstutzen der ölpumpe geführt und somit schnell und ohne große Wärmeverluste an die Lagerstellen gebracht. Erwärmt sich der Motor durch den Betrieb, so öffnet in bekannter Weise nach einer gewissen Zeit der Thermostat (25) des Kühlsystems, um die Kühlung mittels des Kühlers (26) zu verstärken. Die Ventile (14 - 18) werden entsprechend Tabelle 1 geöffnet und geschlossen, bis sie beim Abstellen des Motors alle schließen. Die Wärmespeicherung beginnt dann von neuem bis zum nächsten Start, Tabelle 1: Kühlmedienkreisläufe während der Start- und Warmlaufphase: Warmlaufphase Ventilstellung Thermostat zur Kühlerdurchström. 1. Kaltstart bis zum Errei 14 und 15 offen 25 zu chen der min . Misch- 18 zu temp. TM oder Zeit t 2. Von TM bis kurz vor Be- 14 und 15 zu 25 zu triebstemperatur TA 18 offen 3. Von TA bis Betriebstem- 14 und 15 offen 25 zu peratur Tg, bei welcher 18 zu der Thermostat öffnet. 4. Ab Betriebstemperatur T8 14 und 15 nur offen, 25 offen bis max. Kühlmitteltem- wenn Durchflußwiderstand peratur. durch Kühler( als durch Thermogefäß. 18 zu. In engines with dry sump lubrication, the oil reservoir is used as a heat store. When the door lock or the ignition lock is operated, the electromagnetically operated shut-off valves (14 - 17) open. By convectional flow and by the forced flow existing in the circuit through the water and / or. oil pump and possibly additional electric pumps (23 and 24), the respective fluid flows into the circuit and heats the engine. The coolant guide is designed so that the hot cooling medium from the heat accumulator first flows through the parts important for the starting process, e.g. the intake, the cylinder head and the piston surfaces, before it mixes and cools down in the rest of the engine. The stored, hot engine oil is also fed directly to the intake port of the oil pump and thus brought to the bearing points quickly and without major heat losses. If the engine heats up during operation, the thermostat (25) of the cooling system opens in a known manner after a certain time in order to increase the cooling by means of the radiator (26). The valves (14 - 18) are opened and closed according to Table 1 until they all close when the engine is switched off. The heat storage then begins again until the next start, Table 1: Coolant circuits during the start and warm-up phase: Warm-up phase valve position thermostat for Cooler flow. 1. Cold start until reaching 14 and 15 open 25 closed the min. Mixing 18 too temp. TM or time t 2. From TM until shortly before loading 14 and 15 to 25 to operating temperature TA 18 open 3. From TA to operating date 14 and 15 open 25 to temperature Tg, at which 18 to the thermostat opens. 4. From operating temperature T8 14 and 15 only open, 25 open up to max. coolant temperature if flow resistance temperature. through cooler (than through Thermal vessel. 18 to.

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Claims (7)

Wärmespeicherung des Kühlmediums und/oder Motoröls bei Verbrennungskraftmaschinen Patentansprüche M System zur Wärmespeicherung des Kühlmittels und/oder des Motoröles bei Verbrennungsmotoren dadurch gekennzeichnet, daß ein wesentlicher Teil des Kühimittels und/oder Motoröls in einem wärmeisolierten Cefäß (11, 12) beim Abstellen des Motors (13) dadurch gespeichert wird, daß die Magnetventile (14-17) den wärmeisolierten Teil des Kreislaufes durch Schließen von dem auskühlenden Teil trennen. Heat storage of the cooling medium and / or engine oil in internal combustion engines Claims M System for heat storage of the coolant and / or the engine oil in internal combustion engines, characterized in that a substantial part of the cooling agent and / or engine oil in a thermally insulated vessel (11, 12) when the engine is switched off (13) is stored in that the solenoid valves (14-17) the thermally insulated Separate part of the circuit from the part to be cooled by closing it. Bei erneutem Motorstart öffnen die elektrisch gesteuerten Magnetventile wieder, sodaß der Motor mit vorgewärmtem Kühlmedium und/oder Motoröl gestartet werden kann. When the engine is restarted, the electrically controlled solenoid valves open again, so that the engine can be started with preheated cooling medium and / or engine oil can. 2. Einrichtung nach Anspr. 1, dadurch gekennzeichnet, daß alle Kühlmittelschlàuche (19), Kühlerausgleichsgefäße (19a) u. eventuell auch Heizungswärmetauscher (20) thermisch isoliert werden (21) und als Wärmespeichervolumen miteinbezogen werden und somit evtl. auf ein zusätzliches Thermosgefäß (11) gemäß Anspruch 1 verzichtet werden kann. Ebenso kann durch entsprechende Anordnung des Thermosgefäßes (12) im Ölkreislauf die zusätzliche Motorölmenge gering gehalten werden, oder entfallen, wobei auch die Ölwanne des Motors (13) wärmeisoliert werden kann. 2. device according to cont. 1, characterized in that all coolant hoses (19), cooler expansion vessels (19a) and possibly also heating heat exchanger (20) be thermally insulated (21) and included as a heat storage volume and thus possibly dispensed with an additional thermos vessel (11) according to claim 1 can be. Likewise, by arranging the thermos flask (12) in the Oil circuit, the additional amount of engine oil can be kept low, or omitted, the oil pan of the engine (13) can also be thermally insulated. 3. Einrichtung nach Anspruch 1 und 2 dadurch gekennzeichnet, daß bei Motoren mit Trockensumpfschmierung der Ölvorratabehälter als wärmeisoliertes Gefäß ausgebildet ist. 3. Device according to claim 1 and 2, characterized in that In engines with dry sump lubrication, the oil reservoir is thermally insulated Vessel is formed. 4. Einrichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß die elektrischen Magnetventile (14-18) durch Betätigung des Türschlosses oder der Zündanlage geöffnet bzw. geschlossen werden. D.h. bei entriegelten Türschlössern oder eingeschalteter Zündung ist der Kühl-und/oder Ölkreislauf geöffnet. 4. Device according to claim 1 to 3, characterized in that the electric solenoid valves (14-18) by actuating the door lock or the Ignition system can be opened or closed. I.e. when the door locks are unlocked or when the ignition is switched on, the cooling and / or oil circuit is open. 5. Einrichtung nach Anspruch 1 bis 4 dadurch gekennzeichnet, daß der Wärmeaustausch zwischen dem heißen, wärmeisolierten Teil des Kühlmittel-und/oder ÖIkreislaufes und dem kalten Teil durch konvektionelle Strömung, durch die Zwangsströmung der Wasser-und/oder 01-pumpe, sowie durch eventuell zusätzliche elektrische Pumpen (23, 24) stattfindet.5. Device according to claim 1 to 4, characterized in that the Heat exchange between the hot, thermally insulated part of the coolant and / or Oil circuit and the cold part by convectional flow, by the forced flow the water and / or oil pump, and possibly additional electrical pumps (23, 24) takes place. 6. System nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß als Wärmespeichermedium im Kühlmittel teil auch Flüssigkeiten mit höheren Siedetemperaturen als Wasser in Frage kommen wie z.B. Athylenglykol, Dieselkraftstoff, Leinöl, Schmieröl usw.6. System according to claim 1 to 5, characterized in that the heat storage medium in the coolant also liquids with higher boiling temperatures than water in Questions such as ethylene glycol, diesel fuel, linseed oil, lubricating oil etc. 7. Einrichtung nach Anspruch 1 bis 6 dadurch gekennzeichnet, daß der wärmeisolierte Teil des Kühlmittel-und Ölkreislaufes jeweils durch ein elektrisches Widerstands-Schnellheizsystem oder über die heißen Abgase im Bedarfsfall aufgeheizt werden kann.7. Device according to claim 1 to 6, characterized in that the heat-insulated part of the coolant and oil circuit each by an electrical one Resistance rapid heating system or heated by the hot exhaust gases if necessary can be.
DE19823215342 1982-04-24 1982-04-24 Storage of heat from the cooling medium and engine oil on internal combustion engines Withdrawn DE3215342A1 (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3341097A1 (en) * 1983-11-12 1985-05-23 Volkswagenwerk Ag, 3180 Wolfsburg Internal combustion engine for vehicles, in particular passenger vehicles
AT386654B (en) * 1984-05-03 1988-09-26 Reschny Hans DEVICE FOR EASIER COLD STARTING IN INTERNAL COMBUSTION ENGINES FOR MOTOR VEHICLES
DE4402215A1 (en) * 1993-07-12 1995-01-19 Man Nutzfahrzeuge Ag Process for improving the cold start behavior of internal combustion engines
EP0806556A1 (en) * 1996-05-10 1997-11-12 Valeo Thermique Moteur S.A. Cooling device of an internal combustion engine with a thermally insulated fluid tank
EP1101915A2 (en) * 1999-11-18 2001-05-23 Toyota Jidosha Kabushiki Kaisha Cooling system and method of internal combustion engine
EP1176040A2 (en) 2000-07-26 2002-01-30 Toyota Jidosha Kabushiki Kaisha Internal combustion engine having heat accumulator
FR2842248A1 (en) * 2002-07-11 2004-01-16 Renault Sa Heat exchange circuit for motor vehicle, uses five separate fluid circuits to give better control of engine cooling, oil cooling, cabin heating and heat recovery
WO2007093832A1 (en) * 2006-02-17 2007-08-23 Zaza Akhmeteli Engine fluids temperature maintenance method and the fluids temperature control apparatus
GB2461304A (en) * 2008-06-27 2009-12-30 Gm Global Tech Operations Inc I.c. engine oil supply system with insulated oil storage for improved cold start efficiency
DE102009058575A1 (en) 2009-12-17 2011-06-22 Volkswagen AG, 38440 Cooling circuit of an internal combustion engine and a working method for operating a cooling circuit
DE10344018B4 (en) * 2003-09-15 2016-12-22 Mahle International Gmbh Cooling system set up for an internal combustion engine with a hot water tank
DE102017108273A1 (en) 2017-04-19 2018-10-25 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Liquid cooling device for internal combustion engines
RU187560U1 (en) * 2018-05-24 2019-03-12 Федеральное государственное бюджетное образовательное учреждение высшего образования "Самарский государственный университет путей сообщения" (СамГУПС) Pre-start thermal preparation system for an internal combustion engine
DE102019112368A1 (en) * 2019-05-13 2020-11-19 Bayerische Motoren Werke Aktiengesellschaft Internal combustion engine with a lubricant circuit
DE102019112370A1 (en) * 2019-05-13 2020-11-19 Bayerische Motoren Werke Aktiengesellschaft Internal combustion engine with a lubricant circuit

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3341097A1 (en) * 1983-11-12 1985-05-23 Volkswagenwerk Ag, 3180 Wolfsburg Internal combustion engine for vehicles, in particular passenger vehicles
AT386654B (en) * 1984-05-03 1988-09-26 Reschny Hans DEVICE FOR EASIER COLD STARTING IN INTERNAL COMBUSTION ENGINES FOR MOTOR VEHICLES
DE4402215A1 (en) * 1993-07-12 1995-01-19 Man Nutzfahrzeuge Ag Process for improving the cold start behavior of internal combustion engines
EP0806556A1 (en) * 1996-05-10 1997-11-12 Valeo Thermique Moteur S.A. Cooling device of an internal combustion engine with a thermally insulated fluid tank
FR2748519A1 (en) * 1996-05-10 1997-11-14 Valeo Thermique Moteur Sa ENGINE COOLING DEVICE WITH THERMALLY INSULATED FLUID RESERVOIR
US5884588A (en) * 1996-05-10 1999-03-23 Valeo Thermique Moteur Engine cooling system with a thermally insulated fluid reservoir
EP1101915A3 (en) * 1999-11-18 2004-03-03 Toyota Jidosha Kabushiki Kaisha Cooling system and method of internal combustion engine
EP1101915A2 (en) * 1999-11-18 2001-05-23 Toyota Jidosha Kabushiki Kaisha Cooling system and method of internal combustion engine
EP2025539A3 (en) * 2000-07-26 2009-07-01 Toyota Jidosha Kabushiki Kaisha Internal combustion engine having heat accumulator
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