EP2536940A1 - Verfahren und vorrichtung für verbrennungskraftmaschinen - Google Patents
Verfahren und vorrichtung für verbrennungskraftmaschinenInfo
- Publication number
- EP2536940A1 EP2536940A1 EP11706205A EP11706205A EP2536940A1 EP 2536940 A1 EP2536940 A1 EP 2536940A1 EP 11706205 A EP11706205 A EP 11706205A EP 11706205 A EP11706205 A EP 11706205A EP 2536940 A1 EP2536940 A1 EP 2536940A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- engine
- internal combustion
- fluid
- expansion
- combustion 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- Withdrawn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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000002918 waste heat Substances 0.000 claims abstract description 19
- 239000012530 fluid Substances 0.000 claims description 44
- 239000007789 gas Substances 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000006163 transport media Substances 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
- F02G5/02—Profiting from waste heat of exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
-
- 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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
-
- 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
Definitions
- the invention relates to a method for improving the efficiency of internal combustion engines, in particular engine of
- the invention is therefore based on the object to propose a method and an apparatus for performing the method, which in terms of efficiency improved on generation of mechanical and / or electrical energy in relation to the energy used and thus reduces the waste heat.
- This object is achieved in that the waste heat of the internal combustion engine is used to operate another engine.
- Heat exchanger heats a fluid which is used in the further engine, which may be designed as an expansion engine.
- the remaining waste heat is at least partially used.
- Another very advantageous embodiment of the method according to the invention is also present when remaining waste heat from the internal combustion engine and / or other engine is used elsewhere, for example, for heating rooms or the like.
- waste heat can also be stored via a buffer storage for later use for heating purposes.
- Dissipation of residual heat is used.
- a device which can be designed as a cooler, an operation can be ensured without the remaining residual heat is used or can be used. This is especially in the summer, when hardly any heating energy is needed, but still electricity must be generated or otherwise mechanical energy is needed, advantageous.
- the inventive method is when an internal combustion engine is provided, the exhaust gases are passed through an exhaust gas heat exchanger, wherein the exhaust gas heat exchanger heats a fluid which in a
- Expansion engine is expanded and cooled.
- Expansionskraftmaschine is supplied and then the expanded and thus gaseous fluid its residual heat to the liquid fluid in one
- Internal combustion engine and / or the fluid is able to remove the remaining heat and is able to supply a heating circuit and / or a cooler.
- Exhaust side of the expansion engine and / or can be provided between the injection side of the expansion engine and the exhaust gas heat exchanger.
- the fluid injection can be rinsed until it has reached the temperature necessary for the respective fluid to be expanded in the expansion engine can.
- the internal combustion engine and the expansion engine are installed together in an engine housing and can have a common crankshaft or the like.
- Combustion cylinder and one works as an expansion cylinder.
- one or more generators can be used to generate
- FIG. 1 is a schematic representation of a device according to the invention with an internal combustion engine and a
- Fig. 2 is a schematic representation of a device according to the invention with a combined combustion and expansion engine
- Fig. 3 is a schematic representation of a device according to the invention with a combined combustion and expansion engine, the cylinders operate alternately different.
- Fig. 1 designed as an internal combustion engine internal combustion engine. This can be operated for example with liquid gas, natural gas, wood gas, synthesis gas, fuel oil, vegetable oil or other regenerated fuels.
- the exhaust gases of the internal combustion engine 1 are passed via an exhaust manifold 2 to an exhaust gas heat exchanger 3.
- the exhaust gas heat exchanger 3 can still be arranged downstream of another exhaust gas heat exchanger 4, before the exhaust gases
- the internal combustion engine 1 can drive a generator 6, or other devices that require mechanical energy.
- a fluid 1 1 is supplied from a collecting container 12 by means of a circulation pump 13 to the exhaust gas heat exchanger 3. There, the fluid 1 1 is heated. The heated fluid 1 1 is then
- Expansion engine 15 is injected. To avoid vapor formation it is advantageous to operate the circulation pump 13 under pressure control, so that the heated fluid 1 1 is always below a predetermined pressure.
- the injected fluid 1 1 evaporates in the cylinders of the
- Expansion engine 15 and is at least partially cooled. Through the expansion, mechanical work is done.
- the mechanical work generated in the expansion engine 15 can be converted, for example, by a generator 16 into electrical energy. But it is also conceivable that devices or machines that require mechanical energy are driven directly.
- the expansion engine 15 can be designed as a piston engine. This is operated, for example, in two-stroke process. To control intake and exhaust valves are provided, which can be controlled either via a camshaft or individually electrically. It is also conceivable that
- Rotary piston engines or rotary expansion engines are generally provided.
- the vaporized fluid expelled from the expansion engine 15 is cooled and liquefied via a condenser 17 and returned to the sump 12.
- the vaporized fluid 1 1 is passed through a recuperator 18, which emits a portion of the remaining heat energy to the liquefied fluid 1 1, which from the reservoir 12 for
- Exhaust gas heat exchanger 3 is pumped.
- a bypass line 19 may be provided, which is controlled by a valve 20. About the bypass line 19 is so long fluid 1 1 at the Expander engine 15 passes until it is heated to the desired value. Only then are the injection valves 14 activated.
- the injectors 14 When switching off the expansion engine 15, the injectors 14 are simply closed.
- the internal combustion engine 1 is switched off at the same time.
- the bypass line 19 can be opened and the circulation of the fluid 11 can be maintained for a while.
- the duration of the post-circulation can be controlled by timing, temperature measurement, pressure measurement or the like.
- Circulating pump 21 may be provided. It is also conceivable that through the
- Bypass line 19 a small circle between the rail 22 and heat exchanger 3 is formed. Via a three-way valve 23 fresh fluid 1 1 can be mixed from the large circle. It is also conceivable that an additional heat exchanger 24 is provided, which dissipates the heat to be dissipated in the wake directly to a cooling or heating system 31.
- bypass line 19 can be provided for a venting of the system.
- a rail 22 may be provided which is uniformly applied with fluid 1 1. On this the Einspitzventile 14 are arranged.
- the energy still dissipatable in the downstream heat exchanger 4 and in the condenser can be supplied to a heating circuit 31, for example for building heating. If the remaining, small amount of heat can not be used for heating, this can also be removed for example via a cooler 32.
- the heating circuit 31 may for example have a buffer memory, not shown, which is charged with the residual heat.
- the energy removal from the downstream heat exchanger 4 and the condenser 17 can be realized via a delivery circuit, wherein the
- Transport medium for example, by a circulation pump 33 is transported.
- water for example, water can be used. But they are too
- Expansionskraftmaschine 15 is evaporated.
- the fluid 1 1 should have sufficient residual heat, so that it does not condensate in the expansion engine 15 again and is reflected.
- the condensation may at the earliest in
- Recuperator 18 ideally take place in the capacitor 17.
- the fluid 1 1 can be promoted by the feed pump 13 so strong that an injection pressure of several hundred bar is applied to the injectors 14. The exact pressure value is dependent on the temperatures occurring and the fluid used 1 1.
- Expansion engine 15 are combined into a single machine. The heat flows remain, as described in the first embodiment.
- V-engine 41 is provided, a cylinder bank as the internal combustion engine 1 and the other cylinder bank as
- Expansion engine 15 works. Both sub-machines act on a single crankshaft.
- Camshaft be provided. But it is also conceivable that each part of the machine has a separate camshaft.
- the control can be designed particularly flexibly if the valves of the individual cylinders are electrically controlled. It is conceivable that the internal combustion engine 1 with a conventional
- Camshaft control works, the expansion engine 15 but with an electric valve control. Other combinations are possible.
- the expansion engine 15 can run along empty until the fluid 1 1 is sufficiently heated.
- the valves of the expansion engine 15 are simply opened, so that no compression can take place.
- a combination engine with 8 cylinders is shown in V-shape, with four cylinders each as the internal combustion engine 1 and four cylinders as
- Combination engine 51 are created, which has alternating cylinders, which work either as an internal combustion engine 1 or as an expansion engine 15.
- a series engine 51 may be used, which has five cylinders in this embodiment.
- the first, third and fifth cylinders operate as internal combustion engine 1 and the second and fourth cylinders as expansion engine 15.
- Occurring internal heat of the internal combustion engine 1 is fed directly through the cylinder walls of the expansion engine 15.
- cylinders 1 and 2 could operate as the internal combustion engine 1 and the cylinders 3 and 4 of a four-cylinder engine as the expansion engine 15.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010000487.1A DE102010000487B4 (de) | 2010-02-21 | 2010-02-21 | Verfahren und Vorrichtung für Verbrennungskraftmaschinen |
PCT/EP2011/052380 WO2011101426A1 (de) | 2010-02-21 | 2011-02-17 | Verfahren und vorrichtung für verbrennungskraftmaschinen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2536940A1 true EP2536940A1 (de) | 2012-12-26 |
Family
ID=44052912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11706205A Withdrawn EP2536940A1 (de) | 2010-02-21 | 2011-02-17 | Verfahren und vorrichtung für verbrennungskraftmaschinen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2536940A1 (de) |
DE (1) | DE102010000487B4 (de) |
WO (1) | WO2011101426A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202011109771U1 (de) | 2011-02-10 | 2012-03-21 | Voith Patent Gmbh | Stationäres Kraftwerk, insbesondere Gaskraftwerk, zur Stromerzeugung |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006097089A2 (de) * | 2005-03-15 | 2006-09-21 | Kuepfer Ewald | Verfahren und vorrichtungen zur verbesserung des wirkungsgrades von energieumwandlungseinrichtungen |
GB2457266A (en) * | 2008-02-07 | 2009-08-12 | Univ City | Power generation from a heat source |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH632051A5 (de) | 1978-10-25 | 1982-09-15 | Sulzer Ag | Brennkraftmaschinenanlage. |
FR2449780A1 (fr) | 1979-02-22 | 1980-09-19 | Semt | Procede et dispositif de recuperation d'energie thermique dans un moteur a combustion interne suralimente |
DE4015104A1 (de) * | 1990-05-11 | 1990-11-29 | Tuttass Edmond | Kombinierte waermekraftanlage |
DE19610382C2 (de) | 1996-03-16 | 2000-06-29 | Reinhard Leithner | Kombimotor |
EP1053438B1 (de) | 1998-02-03 | 2002-07-24 | Miturbo Umwelttechnik GmbH & Co. KG | Verfahren und vorrichtung für wärmetransformation zur erzeugung von heizmedien |
WO2002090747A2 (en) * | 2001-05-07 | 2002-11-14 | Battelle Memorial Institute | Heat energy utilization system |
DE10259488A1 (de) * | 2002-12-19 | 2004-07-01 | Bayerische Motoren Werke Ag | Wärmekraftmaschine |
JP2006283699A (ja) * | 2005-04-01 | 2006-10-19 | Toyota Motor Corp | 熱エネルギ回収装置 |
DE102007013817B4 (de) * | 2006-03-23 | 2009-12-03 | DENSO CORPORATION, Kariya-shi | Abwärmesammelsystem mit Expansionsvorrichtung |
FR2905728B1 (fr) * | 2006-09-11 | 2012-11-16 | Frederic Thevenod | Moteur hybride a recuperation de la chaleur d'echappement |
-
2010
- 2010-02-21 DE DE102010000487.1A patent/DE102010000487B4/de active Active
-
2011
- 2011-02-17 EP EP11706205A patent/EP2536940A1/de not_active Withdrawn
- 2011-02-17 WO PCT/EP2011/052380 patent/WO2011101426A1/de active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006097089A2 (de) * | 2005-03-15 | 2006-09-21 | Kuepfer Ewald | Verfahren und vorrichtungen zur verbesserung des wirkungsgrades von energieumwandlungseinrichtungen |
GB2457266A (en) * | 2008-02-07 | 2009-08-12 | Univ City | Power generation from a heat source |
Non-Patent Citations (1)
Title |
---|
See also references of WO2011101426A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102010000487A1 (de) | 2011-08-25 |
WO2011101426A1 (de) | 2011-08-25 |
DE102010000487B4 (de) | 2023-06-29 |
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