EP2580458A1 - Culasse echangeur - Google Patents
Culasse echangeurInfo
- Publication number
- EP2580458A1 EP2580458A1 EP11744027.1A EP11744027A EP2580458A1 EP 2580458 A1 EP2580458 A1 EP 2580458A1 EP 11744027 A EP11744027 A EP 11744027A EP 2580458 A1 EP2580458 A1 EP 2580458A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- engine
- fluid
- heat
- exchanger
- hot source
- 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.)
- Granted
Links
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
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
- F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
- F02G1/053—Component parts or details
- F02G1/055—Heaters or coolers
-
- 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
- F02G1/02—Hot gas positive-displacement engine plants of open-cycle type
-
- 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
- F02G2254/00—Heat inputs
Definitions
- This invention relates to a heat engine (piston, or rotary type Wankel) whose heat energy input is made from an external heat source which can be a hot fluid or radiation. This is the application of cycles similar to the Stirling or Ericsson cycles.
- this engine uses an open or closed cycle.
- the working fluid is compressible under the operating conditions of the engine and discharges the heat of the exhaust to a cold source of any kind (fluid or solid) with or without the aid of an external cooling exchanger according to it is an open or closed cycle.
- the working fluid used may be a refrigerant or a gas such as air, or any fluid that may be able to exchange heat under the operating conditions of the engine.
- This engine is characterized in that it includes an exchanger head which transfers to the internal fluid of the engine by conduction through the material of the cylinder head itself the heat energy taken from the hot source of a fluid external to the engine ( liquid or gas) or by external heat input radiation. Any form of heat recovery from a hot source can be used:
- Any hot source capable of exchanging heat with the exchanger breech is not limited to the aerobic domain, but it can use refrigerants as the driving fluid especially when the temperature of the hot source is low.
- the two heat exchangers 11 and 9 may be the assembly of several parts as shown in FIG. 8.
- the part 10 is used as a heat conductor between the part 1 1 and the part 9.
- the 2 exchangers 9 and 11 can also be the same piece (parts 9,10 and 11 then form a single piece the cylinder head exchanger 2).
- this set of parts 9, 10 and 11 the exchanger head 2 as shown in FIG. 7. This conformation makes it possible to obtain thermal and mechanical stresses in the exchanger head 2 similar to those encountered in FIG. the conventional cylinder heads of other engines. It also limits the amount of air transferred during the heat exchange to a minimum.
- the motor cycle is conventional 2-stroke or 4-stroke.
- the supply of heat to the working fluid is continuously through the exchanger yoke 2 during compression and relaxation! initial intake of heat being free, we first seek to increase the exchange surface of the exchanger head 2 as shown on the part 9 of Figures 4 and 5 while dimensioning a dead volume that is consistent with the volumetric ratio of engine compression chosen.
- FIG. 1 is a diagram illustrating the maximum extractable energy which is a function of the compression ratio of the engine for 3 values of ratio T4 / To of hot source temperature (T4) on cold source temperature (To) given as an example.
- FIG. 2 is a view of un of an example of a conventional piston engine 1 equipped with an exchanger head 2.
- Figure 3 is a sectional view of a 2-stroke engine equipped with an exchanger head 2.
- Figure 4 is a sectional view of a 4-stroke engine equipped with a cylinder head exchanger 2 and side valves 5 and é.
- Figure 5 is a sectional view of a 2-stroke engine equipped with an exchanger head 2 whose exchange surface has been increased.
- Figure 6 is a sectional view of a rotary engine (Wankel type) equipped with a cylinder head exchanger 2 adapted to this type of engine.
- Figure 7 is a sectional view of a yoke exchanger 2 which may be monoblock but here shown composed of 3 elements? - 10 and 11
- FIG. 8 is a sectional view according to BB of the control system of the motor 1 made by obstruction in this example of the passage of hot fluids from the hot source
- FIG. 9 is a plan view according to DD of the system shown in FIG. 8.
- FIG. 10 is a cross-sectional view along A A or CC of the system shown in FIG.
- FIG. 11 is a schematic view of an installation using solar radiation as a hot source and the position of cooler 19 situated in the flow of a river or buried in the ground as a cold source as a source. example.
- Figure 12 shows the different types A, B, C possible exchanger design.
- the internal heat exchanger 9 situated inside the "dead volume" of the cylinder may consist of fins integrally or integrally attached to the exchanger head 2 of the engine 1.
- Other types of exchangers may be used, such as the microporous exchangers.
- the external heat exchanger 11 bathed by the fluid of the hot source (by exchange with a fluid or by radiation) is located outside "dead volume" of the cylinder.
- the exchange of heat between the two exchangers can be done by conduction through the material of the part 10 or with the aid of an exchange fluid between the two exchangers. It has a profile of fins or any other form to exchange heat with this hot source.
- the profiles and shape of inner and outer heat exchangers 11 of the exchanger head 2 will be adapted to the type of compressible driving fluid and the type of fluid of the hot source (liquid or water vapor or exhaust gas or radiation)
- the 1 to 2 or 4 stroke heat engine may have conventional valves or lights commonly found in current engines to allow the intake 5 and exhaust 6 of the engine fluid.
- This engine 1 can use conventional lubrication by splashing or under hydraulic pressure.
- an insulating heat seal 7 is disposed between the exchanger head and the liner body of the cylinder or engine block 4 according to the type of engine to reduce heat transfer from the cylinder head to this body.
- the installation of this seal 7 will be adapted to the type of use depending on whether or not it is necessary to avoid a transfer of calories to the engine block 4, for example to avoid too high wall temperatures incompatible with the characteristics of the engine.
- lubricating fluid used eg oil
- refrigerant one may want on the contrary maintain a heat input to the walls to prevent too rapid condensation of the fluid at the end of relaxation. In this case, the seal 7 will not be installed and a raised wall exchanger head 2 will be used as shown in FIG. 5.
- the engine block 4 can be cooled by air or by fluid or not be cooled if the temperature level of the inner wall is compatible with the level of temperature. acceptable temperature of the lubricating fluid (which may be oil) .
- a partition wall 8 may be installed to separate the hot source from the cold source or an intermediate cooling zone. of the engine if the driving fluid is distinct from the coolant as shown in Figure 1 1 in the context of an application of a refrigerant fluid. In this case it is possible, for example, to bury in the soil 20 or to place in a cold fluid (river 20) a cooler 19 which is immersed in the cold source 20.
- a hydraulic or diphasic pump 21 vapor liquid
- may be used to feed the evaporator 18 which may be radiation also from which the vapor will be transferred from the engine fluid to the engine 1 as shown in Figure 1 1.
- the present invention proposes to install a deflection or obstruction to the passage of fluid from the hot source.
- This deviation can be done using a movable wall 14 installed as shown in Figures 8 - 9 and 10 which can be moved by a cylinder or an electric or hydraulic motor.
- the hot fluids 17 from the hot source are totally or partially deflected towards the exchanger head 2 in order to control the power of the engine 1.
- FIGS. 8-9 and 10 only the deflected fluid 16 exchanges with the exchanger head 2.
- This system uses the fixed walls 12, 13 and 8 for distinguish flow rates 16 and 17. This controls the power of the motor by controlling the fluid flow of the hot source.
- Another way is to install a valve for venting the cylinder. The engine stopping for lack of compression.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1002471A FR2961266B1 (fr) | 2010-06-11 | 2010-06-11 | Moteur thermique a culasse echangeur |
PCT/FR2011/000320 WO2011154622A1 (fr) | 2010-06-11 | 2011-05-30 | Culasse echangeur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2580458A1 true EP2580458A1 (fr) | 2013-04-17 |
EP2580458B1 EP2580458B1 (fr) | 2014-10-08 |
Family
ID=43495046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11744027.1A Active EP2580458B1 (fr) | 2010-06-11 | 2011-05-30 | Culasse echangeur |
Country Status (4)
Country | Link |
---|---|
US (1) | US20130067906A1 (fr) |
EP (1) | EP2580458B1 (fr) |
FR (1) | FR2961266B1 (fr) |
WO (1) | WO2011154622A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO334747B1 (no) * | 2012-01-20 | 2014-05-19 | Viking Heat Engines As | Eksternvarmemaskin, framgangsmåte ved drift av eksternvarmemaskin, en termodynamisk prosess for drift av en eksternvarmemaskin, samt anvendelse av en eksternvarmemaskin og/eller en termodynamisk prosess ved drift av et kraftvarmeverk. |
ITTO20120732A1 (it) * | 2012-08-16 | 2014-02-17 | Aldo Placidi | Scambiatore di calore per un gruppo di conversione di energia, e gruppo di conversione di energia provvisto di tale scambiatore di calore |
US11181072B2 (en) * | 2019-05-21 | 2021-11-23 | General Electric Company | Monolithic combustor bodies |
RU2749241C1 (ru) * | 2020-04-21 | 2021-06-07 | Владимир Викторович Михайлов | Двигатель с внешним подводом теплоты и способ работы двигателя с внешним подводом теплоты |
CN115443380A (zh) * | 2021-01-12 | 2022-12-06 | 丸子警报器株式会社 | 旋转式热泵及搭载有该旋转式热泵的空调和汽车 |
CN116420014A (zh) * | 2021-01-12 | 2023-07-11 | 丸子警报器株式会社 | 旋转式热泵及搭载有该旋转式热泵的空调和汽车 |
JP7339293B2 (ja) * | 2021-03-31 | 2023-09-05 | 本田技研工業株式会社 | 内燃機関 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3180078A (en) | 1961-04-14 | 1965-04-27 | Liston Joseph | Combined internal combustion and hot-air engine |
GB1081499A (en) | 1966-02-09 | 1967-08-31 | Michael William Saunders | Combined internal combustion engine and hot air engine |
DE2200842A1 (de) * | 1972-01-08 | 1973-07-12 | Fritz Ilg | Drehkolben-kraftmaschine mit aussenliegender waermequelle |
US4085588A (en) * | 1976-04-05 | 1978-04-25 | Ford Motor Company | Concentric crossflow recuperator for stirling engine |
US4121423A (en) | 1977-05-31 | 1978-10-24 | Automotive Propulsion Laboratories, Ltd. | Compound internal-combustion hot-gas engines |
DE3170664D1 (en) * | 1981-01-27 | 1985-07-04 | Treuhand Gmbh Fides | Piston engine |
US4389844A (en) * | 1981-06-11 | 1983-06-28 | Mechanical Technology Incorporated | Two stage stirling engine |
US4722188A (en) * | 1985-10-22 | 1988-02-02 | Otters John L | Refractory insulation of hot end in stirling type thermal machines |
US5644917A (en) * | 1996-05-13 | 1997-07-08 | Mcwaters; Thomas David | Kinematic stirling engine |
US6381958B1 (en) * | 1997-07-15 | 2002-05-07 | New Power Concepts Llc | Stirling engine thermal system improvements |
GB9812238D0 (en) * | 1998-06-08 | 1998-08-05 | Schack Engineering Gb Limited | Heat exchanger |
US6279318B1 (en) * | 1999-12-17 | 2001-08-28 | Fantom Technologies Inc. | Heat exchanger for a heat engine |
US6293101B1 (en) * | 2000-02-11 | 2001-09-25 | Fantom Technologies Inc. | Heat exchanger in the burner cup of a heat engine |
DE10143342A1 (de) | 2001-09-04 | 2003-04-03 | Herfried Wichern | Kopplung von Verbrennungskraftmaschinen |
GB0123881D0 (en) * | 2001-10-04 | 2001-11-28 | Bg Intellectual Pty Ltd | A stirling engine assembly |
GB0328292D0 (en) * | 2003-12-05 | 2004-01-07 | Microgen Energy Ltd | A stirling engine assembly |
FR2905728B1 (fr) | 2006-09-11 | 2012-11-16 | Frederic Thevenod | Moteur hybride a recuperation de la chaleur d'echappement |
US7784300B2 (en) * | 2006-12-22 | 2010-08-31 | Yiding Cao | Refrigerator |
US7937943B2 (en) * | 2006-12-22 | 2011-05-10 | Yiding Cao | Heat engines |
US8341951B2 (en) * | 2009-11-04 | 2013-01-01 | GM Global Technology Operations LLC | Vehicle exhaust heat recovery with multiple coolant heating modes and method of managing exhaust heat recovery |
-
2010
- 2010-06-11 FR FR1002471A patent/FR2961266B1/fr not_active Expired - Fee Related
-
2011
- 2011-05-30 WO PCT/FR2011/000320 patent/WO2011154622A1/fr active Application Filing
- 2011-05-30 US US13/701,902 patent/US20130067906A1/en not_active Abandoned
- 2011-05-30 EP EP11744027.1A patent/EP2580458B1/fr active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2011154622A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2580458B1 (fr) | 2014-10-08 |
FR2961266A1 (fr) | 2011-12-16 |
WO2011154622A1 (fr) | 2011-12-15 |
WO2011154622A4 (fr) | 2012-02-02 |
US20130067906A1 (en) | 2013-03-21 |
FR2961266B1 (fr) | 2015-07-17 |
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