DE102007005246A1 - Air supply to automotive piston engine has air pre-heater which is a liquid/gas heat exchanger forming an integral part of an engine cooling system - Google Patents
Air supply to automotive piston engine has air pre-heater which is a liquid/gas heat exchanger forming an integral part of an engine cooling system Download PDFInfo
- Publication number
- DE102007005246A1 DE102007005246A1 DE102007005246A DE102007005246A DE102007005246A1 DE 102007005246 A1 DE102007005246 A1 DE 102007005246A1 DE 102007005246 A DE102007005246 A DE 102007005246A DE 102007005246 A DE102007005246 A DE 102007005246A DE 102007005246 A1 DE102007005246 A1 DE 102007005246A1
- Authority
- DE
- Germany
- Prior art keywords
- charge air
- internal combustion
- combustion engine
- intercooler
- engine
- 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- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
- F02B29/0418—Layout of the intake air cooling or coolant circuit the intake air cooler having a bypass or multiple flow paths within the heat exchanger to vary the effective heat transfer surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
- F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
- F02B33/443—Heating of charging air, e.g. for facilitating the starting
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
- F02M26/28—Layout, e.g. schematics with liquid-cooled heat exchangers
-
- 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
- F02M31/06—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot gases, e.g. by mixing cold and hot air
- F02M31/08—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot gases, e.g. by mixing cold and hot air the gases being exhaust gases
-
- 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
- F02M31/10—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot liquids, e.g. lubricants or cooling water
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/02—EGR systems specially adapted for supercharged engines
-
- 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
Abstract
Description
Die vorliegende Erfindung betrifft eine Brennkraftmaschine, insbesondere in einem Kraftfahrzeug, mit einem Verdichter, einem Ladeluftkühler sowie einer Ladeluftvorwärmeinrichtung, die in einer den Ladeluftkühler umgehenden Bypassleitung angeordnet ist gemäß dem Oberbegriff des Anspruchs 1.The The present invention relates to an internal combustion engine, in particular in a motor vehicle, with a compressor, a charge air cooler as well a charge air preheater, the one in the intercooler bypass bypass is arranged according to the preamble of the claim 1.
Eine
gattungsgemäße Vorrichtung
ist beispielsweise aus der
Bei modernen Testzyklen für Brennkraftmaschinen wird häufig mit niedrigen Abgastemperaturen gearbeitet. Einige der Nachbehandlungssysteme, wie beispielsweise ein SCR-Katalysator, kann in diesen niedrigen Temperaturenbereichen nicht optimal arbeiten. Um die Umsatzraten im SCR-Katalysator erhöhen und den Motor verbrauchsgünstiger einstellen zu können, müssen die Abgastemperaturen ein gewisses Niveau erreichen. Darüber hinaus wird insbesondere im Fahrbetrieb bei Bussen oftmals eine Anspringtemperatur eines Oxidationskatalysators nicht erreicht, wodurch keine passive Regeneration eines Partikelfilters des Oxidationskatalysators möglich ist.at modern test cycles for Internal combustion engines become common worked with low exhaust gas temperatures. Some of the aftertreatment systems, such as an SCR catalyst, can not work optimally in these low temperature ranges. To increase the conversion rates in the SCR catalyst and make the engine more fuel efficient to be able to adjust have to the exhaust gas temperatures reach a certain level. Furthermore In particular, when driving on buses often a light-off of an oxidation catalyst is not achieved, whereby no passive Regeneration of a particulate filter of the oxidation catalyst is possible.
Ausgehend von diesem Stand der Technik ist es Aufgabe der Erfindung, eine Brennkraftmaschine der eingangs umrissenen Gattung mit einfachen Mitteln dahingehend zu verbessern, dass erhöhte Umsatzraten in einem Abgasnachbehandlungssystem der Brennkraftmaschine erreicht werden können.outgoing From this prior art, it is an object of the invention, a Internal combustion engine of the type outlined at the outset with simple To improve means that increased turnover rates in an exhaust aftertreatment system of Internal combustion engine can be achieved.
Gelöst wird dieses Problem durch den Gegenstand des unabhängigen Anspruchs 1. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.Is solved this problem by the subject-matter of independent claim 1. Advantageous embodiments are the subject of the dependent Claims.
Die Erfindung beruht auf dem allgemeinen Gedanken, bei Abgastemperaturen im Abgasnachbehandlungssystem, welche eine optimale Abgasnachbehandlung nicht erlauben, die in die Brennkraftmaschine gelangende Ladeluft vorzuwärmen, indem eine Ladeluftvorwärmeinrichtung in einer einen Ladeluftkühler umgehenden Bypassleitung angeordnet wird und als Energiequelle zum Erwärmen der in die Brennkraftmaschine gelangenden Ladeluft die Ladeluftvorwärmeinrichtung in einem Kühlkreis der Brennkraftmaschine zu integrieren, so dass heißes Kühlmittel aus der Brennkraftmaschine zum Erhitzen der Ladeluft genutzt werden kann. Hierbei ist die Ladeluftvorwärmeinrichtung als Flüssig-/Gaswärmeübertragereinrichtung ausgebildet. Sollte demnach die Temperatur im Abgasnachbehandlungssystem einen bestimmten Grenzwert unterschreiten, kann je nach Bedarf, ein Teil oder die gesamte Ladeluft vorgewärmt werden. Insbesondere bei kleinen Lasten im Leerlauf und im Schubbetrieb des Kraftfahrzeuges kann dadurch die Abgastemperatur deutlich, vorzugsweise um ca. 60° erhöht werden. Durch die erfindungsgemäß ausgebildete und angeordnete Ladeluftvorwärmeinrichtung lassen sich insbesondere höhere Abgastemperaturen erzielen, mit welchen erhöhte Umsatzraten im Abgasnachbehandlungssystem erzielbar sind. Darüber hinaus kann auch die Brennkraftmaschine verbrauchsgünstiger eingestellt werden.The Invention is based on the general idea, at exhaust gas temperatures in the exhaust aftertreatment system, which optimal exhaust aftertreatment do not allow the reaching into the internal combustion engine charge air preheat by a charge air preheater in a one intercooler is arranged bypassing bypass line and as an energy source for Heat the charge air entering the internal combustion engine is the charge air preheater in a cooling circuit integrate the internal combustion engine, leaving hot coolant be used from the internal combustion engine for heating the charge air can. Here, the charge air preheating device is a liquid / gas heat transfer device educated. Should therefore the temperature in the exhaust aftertreatment system may fall below a certain threshold, as appropriate, a part or the entire charge air to be preheated. Especially at small loads at idle and overrun the motor vehicle can thereby the exhaust gas temperature significantly, preferably increased by about 60 °. By trained according to the invention and arranged charge air preheating device can be especially higher Achieve exhaust gas temperatures with which increased conversion rates in the exhaust aftertreatment system can be achieved. About that In addition, the internal combustion engine can also be used more economically be set.
Zweckmäßig ist zumindest eine steuerbare Ventileinrichtung in der Ansaugleitung angeordnet, über welche die durch den Ladeluftkühler und die Ladeluftvorwärmeinrichtung strömende Ladeluftmenge steuerbar ist. Hierdurch kann einfach und schnell die durch den Ladeluftkühler bzw. durch die Lade luftvorwärmeinrichtung strömende Ladeluftmenge gesteuert werden, wodurch je nach Anteil an gekühlter bzw. an vorgewärmter Ladeluft die in die Brennkraftmaschine gelangende Ladeluft exakt temperierbar ist. Sollte dabei die Temperatur im Abgasnachbehandlungssystem eine, zum Betrieb desselben erforderliche Grenztemperatur nicht erreichen, so wird beispielsweise mehr Ladeluft durch die Ladeluftvorwärmeinrichtung geleitet, während beispielsweise die durch den Ladeluftkühler strömende Ladeluftmenge reduziert wird. Dieser Vorgang wird solange fortgesetzt, bis die aus der Brennkraftmaschine austretenden Abgase aufgrund der erhöhten Temperatur der Ladeluftmenge die für den Betrieb des Abgasnachbehandlungssystems erforderliche Grenztemperatur erreicht haben.Is appropriate at least one controllable valve device in the suction line arranged over which by the intercooler and the charge air preheater flowing Charge air quantity is controllable. This can be quick and easy through the intercooler or by the charging luftvorwärmeinrichtung flowing Charge air quantity to be controlled, whereby depending on the proportion of cooled or on preheated Charge air exactly reaches the charge air reaching the internal combustion engine is temperature controlled. Should be the temperature in the exhaust aftertreatment system not required to operate the same limit temperature achieve, for example, more charge air through the charge air preheating passed while For example, the amount of charge air flowing through the intercooler is reduced becomes. This process is continued until that from the internal combustion engine exiting exhaust gases due to the increased temperature of the charge air quantity the for reached the required operating temperature of the exhaust aftertreatment system limit temperature to have.
Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus der Zeichnung und aus der zugehörigen Figurenbeschreibung anhand der Zeichnung.Further important features and advantages of the invention will become apparent from the Dependent claims, from the drawing and the associated Description of the figures with reference to the drawing.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It it is understood that the above and the following yet to be explained features not only in the specified combination, but also in other combinations or alone, without to leave the scope of the present invention.
Ein bevorzugtes Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird in der nachfolgenden Beschreibung näher erläutert.One preferred embodiment The invention is illustrated in the drawing and will be described in the following Description closer explained.
Die
einzige
Entsprechend
Durch
Abkühlung
der angesaugten Luft nach der Kompression, d.h. nach dem Verdichter
In
einer den Ladeluftkühler
Optional
kann dabei die Ladeluftvorwärmeinrichtung
Da
das Abgasnachbehandlungssystem
Eine
Steuerung der Ventileinrichtung
Durch
die erfindungsgemäße Brennkraftmaschine
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007005246A DE102007005246A1 (en) | 2007-02-02 | 2007-02-02 | Air supply to automotive piston engine has air pre-heater which is a liquid/gas heat exchanger forming an integral part of an engine cooling system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007005246A DE102007005246A1 (en) | 2007-02-02 | 2007-02-02 | Air supply to automotive piston engine has air pre-heater which is a liquid/gas heat exchanger forming an integral part of an engine cooling system |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007005246A1 true DE102007005246A1 (en) | 2007-11-22 |
Family
ID=38608180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007005246A Withdrawn DE102007005246A1 (en) | 2007-02-02 | 2007-02-02 | Air supply to automotive piston engine has air pre-heater which is a liquid/gas heat exchanger forming an integral part of an engine cooling system |
Country Status (1)
Country | Link |
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DE (1) | DE102007005246A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2088298A2 (en) * | 2008-02-11 | 2009-08-12 | Pierburg GmbH | Method for controlling a motor vehicle combustion engine assembly |
EP2088297A3 (en) * | 2008-02-11 | 2011-07-13 | Pierburg GmbH | Method for controlling a motor vehicle combustion engine assembly |
DE102012011227A1 (en) | 2012-06-05 | 2013-12-05 | Daimler Ag | Internal combustion engine for passenger car, has first and second liquid-gas heat exchangers arranged downstream of compressor arranged with air intake, where each of liquid-gas heat exchangers comprises bypass device |
WO2014096132A1 (en) * | 2012-12-21 | 2014-06-26 | Valeo Systemes Thermiques | Engine intake air thermal management device and associated thermal management method |
FR3007079A1 (en) * | 2013-06-18 | 2014-12-19 | Peugeot Citroen Automobiles Sa | COMBUSTION ENGINE OF A MOTOR VEHICLE WITH INTAKE HEATER |
WO2016135244A1 (en) | 2015-02-25 | 2016-09-01 | Valeo Systemes Thermiques | Device for the thermal management of engine intake air |
WO2017198911A1 (en) * | 2016-05-18 | 2017-11-23 | Kyrdyn | Internal combustion engine and method for improving the efficiency of an internal combustion engine |
WO2018104506A1 (en) | 2016-12-09 | 2018-06-14 | Valeo Systemes Thermiques | Heat exchanger, in particular a charge air heat exchanger for a motor vehicle |
AT525355A4 (en) * | 2021-09-13 | 2023-03-15 | Avl List Gmbh | Method for controlling the temperature of an exhaust gas cleaning system connected to an internal combustion engine with an SCR catalytic converter |
-
2007
- 2007-02-02 DE DE102007005246A patent/DE102007005246A1/en not_active Withdrawn
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2088298A2 (en) * | 2008-02-11 | 2009-08-12 | Pierburg GmbH | Method for controlling a motor vehicle combustion engine assembly |
EP2088298A3 (en) * | 2008-02-11 | 2011-07-13 | Pierburg GmbH | Method for controlling a motor vehicle combustion engine assembly |
EP2088297A3 (en) * | 2008-02-11 | 2011-07-13 | Pierburg GmbH | Method for controlling a motor vehicle combustion engine assembly |
DE102012011227A1 (en) | 2012-06-05 | 2013-12-05 | Daimler Ag | Internal combustion engine for passenger car, has first and second liquid-gas heat exchangers arranged downstream of compressor arranged with air intake, where each of liquid-gas heat exchangers comprises bypass device |
WO2014096132A1 (en) * | 2012-12-21 | 2014-06-26 | Valeo Systemes Thermiques | Engine intake air thermal management device and associated thermal management method |
FR3000140A1 (en) * | 2012-12-21 | 2014-06-27 | Valeo Systemes Thermiques | THERMAL MANAGEMENT DEVICE FOR THE INTAKE AIR OF A MOTOR AND ASSOCIATED THERMAL MANAGEMENT METHOD |
FR3007079A1 (en) * | 2013-06-18 | 2014-12-19 | Peugeot Citroen Automobiles Sa | COMBUSTION ENGINE OF A MOTOR VEHICLE WITH INTAKE HEATER |
WO2016135244A1 (en) | 2015-02-25 | 2016-09-01 | Valeo Systemes Thermiques | Device for the thermal management of engine intake air |
WO2017198911A1 (en) * | 2016-05-18 | 2017-11-23 | Kyrdyn | Internal combustion engine and method for improving the efficiency of an internal combustion engine |
US10815930B2 (en) | 2016-05-18 | 2020-10-27 | Kyrdyn | Internal combustion engine and a method for enhancing the yield of an internal combustion engine |
WO2018104506A1 (en) | 2016-12-09 | 2018-06-14 | Valeo Systemes Thermiques | Heat exchanger, in particular a charge air heat exchanger for a motor vehicle |
AT525355A4 (en) * | 2021-09-13 | 2023-03-15 | Avl List Gmbh | Method for controlling the temperature of an exhaust gas cleaning system connected to an internal combustion engine with an SCR catalytic converter |
AT525355B1 (en) * | 2021-09-13 | 2023-03-15 | Avl List Gmbh | Method for controlling the temperature of an exhaust gas cleaning system connected to an internal combustion engine with an SCR catalytic converter |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20140204 |