EP0513356A1 - Process and device for improving combustion efficiency of a combustion machine - Google Patents

Process and device for improving combustion efficiency of a combustion machine

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Publication number
EP0513356A1
EP0513356A1 EP91911751A EP91911751A EP0513356A1 EP 0513356 A1 EP0513356 A1 EP 0513356A1 EP 91911751 A EP91911751 A EP 91911751A EP 91911751 A EP91911751 A EP 91911751A EP 0513356 A1 EP0513356 A1 EP 0513356A1
Authority
EP
European Patent Office
Prior art keywords
combustion
combustion efficiency
radiation
improving
duct
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Withdrawn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
EP91911751A
Other languages
German (de)
French (fr)
Inventor
Yasushi Shikanai
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.)
JAPAN INTERNATIONAL DEV ORGANI
JAPAN INTERNATIONAL DEVELOPMENT ORGANIZATION Ltd
Toho Seisakusho Co Ltd
Original Assignee
JAPAN INTERNATIONAL DEV ORGANI
JAPAN INTERNATIONAL DEVELOPMENT ORGANIZATION Ltd
Toho Seisakusho Co Ltd
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 JAPAN INTERNATIONAL DEV ORGANI, JAPAN INTERNATIONAL DEVELOPMENT ORGANIZATION Ltd, Toho Seisakusho Co Ltd filed Critical JAPAN INTERNATIONAL DEV ORGANI
Publication of EP0513356A1 publication Critical patent/EP0513356A1/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Withdrawn legal-status Critical Current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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M27/00—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like
    • F02M27/06—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like by rays, e.g. infrared and ultraviolet
    • 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
    • F02B51/00—Other methods of operating engines involving pretreating of, or adding substances to, combustion air, fuel, or fuel-air mixture of the engines
    • F02B51/06—Other methods of operating engines involving pretreating of, or adding substances to, combustion air, fuel, or fuel-air mixture of the engines involving rays or sound waves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0085—Materials for constructing engines or their parts
    • F02F2007/0092—Transparent materials
    • 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

  • This invention relates to improvements in combustion efficiency of a combustion machine such as an internal combustion engine and more particularly to a process and a device for improving combustion efficiency of a combustion machine.
  • one object of the present invention is to provide a process for improving combustion efficiency of a combustion machine such as an internal combustion engine which is simple and efficient.
  • Another object of the present invention is to provide a device for improving combustion efficiency of a combustion machine which is simple in structure.
  • Another object of the present invention is to provide a device for improving combustion efficiency of a combustion machine which is efficient.
  • Still another object of the present invention is to provide a device for improving combustion efficiency of an internal combustion engine which is easily applicable to an engine already mounted to a vehicle.
  • the process for improving combustion efficiency of a combustion machine comprises the step of preparing a radiation source of extreme infra-red radiation having a wave length of from 8 ⁇ m to 10 ⁇ m.
  • This radiation source which may be a plurality of ceramic pellets or a continuous layer of ceramic powder material, is placed in the vicinity of a duct through which air or an air-fuel mixture is introduced into the combustion chamber so that the air or the mixture incoming through the duct is irradiated by the extreme infra-red radiation before combustion within the combustion chamber, whereby the combustion efficiency of the combustion machine is improved.
  • the device for improving combustion efficiency of a combustion machine having a duct comprises a radiation source of extreme infra-red radiation having a wave length of from 8 ⁇ m to 10 ⁇ m.
  • This radiation source of extreme infra-red radiation is positioned by a support member in the vicinity of a duct through which air or an air-fuel mixture is introduced into the combustion chamber so that the air incoming through the duct is irradiated by the extreme infra-red radiation before combustion within the combustion chamber.
  • the radiation source may be a plurality of ceramic pellets or a continuous layer of ceramic powder material.
  • the device for improving combustion efficiency of a combustion machine having a duct for introducing air into a combustion chamber may comprise a flexible sheet, and a flexible metallic reflector attached to the flexible sheet for reflecting the extreme infra-red radiation.
  • a ceramic radiation source of extreme infra-red radiation having a wave length of from 8 ⁇ m to 10 ⁇ m is attached to the reflector.
  • the radiation source may be a plurality of ceramic pellets or a continuous layer of ceramic powder material.
  • a fastener is attached to the flexible sheet for attaching the flexible sheet to the duct with the radiation source facing toward the duct so that the air incoming through the duct is irradiated by the extreme infra-red radiation before combustion within the combustion chamber.
  • Fig. 1 is a schematic perspective view of the device for improving combustion efficiency of the pellet type of the present invention
  • Fig. 2 is a schematic perspective view of the device for improving combustion efficiency illustrated in Fig. 1 but in a bent state;
  • Fig. 3 is a schematic side view of an internal combustion engine to which the combustion efficiency improving device of the present invention is applied; and Fig. 4 is a fragmental perspective view of the device for improving combustion efficiency of the sheet type of another embodiment of the present invention.
  • Figs. 1 to 3 illustrate one embodiment of a combustion efficiency improving device 1 of the present invention for combustion efficiency of a combustion machine such as an internal combustion engine 2 (Fig. 3) and a burner.
  • the internal combustion engine 2 to be used with the device 1 of the present invention has a duct 3 through which air is introduced into a combustion chamber 4 of the engine 2.
  • the combustion improving device 1 comprises an elongated flexible base sheet 5 made of a suitable plastic material which preferably may be heat resistant.
  • the base sheet 5 has attached thereto a flexible metallic reflector 6 for reflecting an extreme infra-red radiation.
  • the reflector 6 may be a light-reflective aluminum foil.
  • a plurality of radiation sources 8 in the form of ceramic pellets of extreme infra-red radiation, which may preferably have a wave length of from 8 ⁇ m to 10 ⁇ m.
  • the radiation source 8 is made of a ceramic material composed of 50% - 60% alumina, 20% - 30% iron oxide, 10% - 20% titanium oxide and 3% - 7% impurities including binder. In the preferred embodiment, the ceramic material is composed of 55% of alumina, 25% of iron oxide, 15% of titanium oxide and 5% of impurities including binder.
  • the reflector 6, the bonding agent layer 7 and the radiation sources 8 are covered by a protective sheet 9 attached to the base sheet 5.
  • the protective sheet 9 is also flexible and is transparent to the extreme infra-red radiation.
  • the combustion improving device 1 also comprises a fastener 10 attached to the flexible base sheet 5 for attaching the flexible base sheet 5 to the duct 3 with the radiation source 8 facing toward the duct 3 so that the air incoming through the duct 3 into the combustion chamber 4 is irradiated by the extreme infra-red radiation before combustion within the combustion chamber 4. It is preferable that the fastener 10 allows the combustion improving device 1 to be easily detachably attached to the duct 3.
  • the fastener 10 of the preferred embodiment is a magic tape or a Velcro fastener (Trade Name) which is a pair of pieces of tapes on which a large number of small nylon hooks and loops are planted so that, when two tapes are pressed together, the hooks and the loops engage each other to relatively strongly connect two tapes.
  • a magic tape or a Velcro fastener (Trade Name) which is a pair of pieces of tapes on which a large number of small nylon hooks and loops are planted so that, when two tapes are pressed together, the hooks and the loops engage each other to relatively strongly connect two tapes.
  • the combustion improving device 1 may preferably be attached to an air-fuel mixture intake duct or an intake manifold 3 of the internal combustion engine 2 as illustrated in Fig. 3. Alternatively it may be attached to an air duct 11 of an air cleaner 12 mounted to a carburator 13. Thus, the air incoming through the duct 3 is irradiated by the extreme infra-red radiation before combustion within the combustion chamber.
  • Fig. 4 illustrates another embodiment of the present invention in which the combustion efficiency improving device 21 comprises a radiation source 22 which is in the form of a flexible layer 23 including a mixture of a ceramic powder material substantially continuously and uniformly distributed throughout the radiation source 22 so that the radiation is generated uniformly from substantially the entire surface of the layer 23.
  • the combustion efficiency improving device 21 comprises a radiation source 22 which is in the form of a flexible layer 23 including a mixture of a ceramic powder material substantially continuously and uniformly distributed throughout the radiation source 22 so that the radiation is generated uniformly from substantially the entire surface of the layer 23.
  • a radiation source 22 of extreme infra-red radiation in the form of a flexible layer 23 of a ceramic powder material substantially continuously and uniformly distributed throughout the layer of the radiation source 22.
  • the radiation source 22 has a base sheet 24, which may be paper or a metal, on which the layer 23 of the ceramic powder material is attached.
  • the radiation source 22 is enclosed within a vinyl chloride evacuated wrapper 24.
  • the reflector 6, the radiation source 22 within the evacuated wrapper 24 are covered by a protective sheet 9 attached to the base sheet 5.
  • a protective sheet 9 attached to the base sheet 5.
  • the inventor of the present application has conducted experiments which clearly indicate that the combustion efficiency of an internal combustion engine with the combustion efficiency improving device of the present invention is used is improved as compared to the engine without the device of the present invention.
  • the results of the tests are indicated below:
  • Table I indicates the results of a comparison test in which three buses in commercial service by JR Bus Tohoku Kabushiki Kaisha (former Japanese National Railways) are used.
  • the combustion improving device as illustrated in Figs. 1 to 3 (pellet type) was wound around the fuel-air mixture intake manifold of the Isuzu Type DH100H diesel engine used in Isuzu Type CLM520-2325794 (car #1) alone and put in service on a commercial route in August, September and October of 1988.
  • the same type of buses with the same type of engine (Car #2 and car #3) were operated without the combustion improving device on the same commercial route in August, September and October, 1988. From the tests it is clear that Car #1 with the combustion improving device 1 of the pellet type of the present invention exhibited a distance per fuel consumption of 3.17 km/1 whereas Car #2 and Car #3 exhibited the values of 2.92 km/1 and 2.94 km/1, respectively.
  • Table II indicates the test results of another test which was conducted by the inventor of the present invention.
  • a same Isuzu Type CXZ19J dump truck with an Isuzu Type 10PC1 diesel engine (15,014 cc) was used throughout the tests to obtain values of km/1 with and without the pellet-type combustion improving device illustrated in Figs. 1 to 3 under the non-loaded and loaded conditions with 10,450 kg sand.
  • the tests were conducted in four 3 km test sections at different speed for each section.
  • the average km/1 was obtained for four test runs at different speed by conducting four test runs on a straight 12 km test road having four sections of 3 km length each.
  • the process for improving combustion efficiency of a combustion machine comprises the step of preparing a radiation source of extreme infra-red radiation having a wave length of from 8 ⁇ m to 10 ⁇ m, and the radiation source, which may be of the pellet type or a sheet type, is placed in the vicinity of a duct through which air or an air-fuel mixture is introduced into the combustion chamber so that the air or the mixture incoming through the duct is irradiated by the extreme infra-red radiation before combustion within the combustion chamber.
  • a radiation source of extreme infra-red radiation having a wave length of from 8 // a to 10 ⁇ m which may be the pellet type of the sheet type, can be positioned by a support member in the vicinity of a duct through which air or an air-fuel mixture is introduced into the combustion chamber so that the air incoming through the duct is irradiated by the extreme infra-red radiation before combustion within the combustion chamber.
  • the device for improving combustion efficiency of a combustion machine having a duct for introducing air into a combustion chamber may comprise a flexible sheet, and a flexible metallic reflector attached to the flexible sheet for reflecting the extreme infra-red radiation.
  • a fastener is attached to the flexible sheet for attaching the flexible sheet to the duct with the radiation source facing toward the duct so that the air incoming through the duct is irradiated by the extreme infra-red radiation before combustion within the combustion chamber. Therefore, the combustion efficiency of the combustion machine can be improved with a simple and efficient device which can easily be applied to an engine already mounted in a vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Air Supply (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

Dispositif (21) servant à améliorer le rendement de combustion d'un moteur à combustion interne comportant une feuille souple et allongée (5), un réflecteur métallique souple (6) fixé à cette feuille souple (5) et destiné à réfléchir un rayonnement infrarouge extrême, une source céramique de rayonnement (22) fixée au réflecteur (6) ainsi qu'un élément de fixation (10) servant à relier la feuille souple à la tubulure d'aspiration du moteur de sorte que la source de rayonnement soit orientée vers la tubulure. Le rayonnement infrarouge extrême présente une longueur d'onde comprise entre 8 mum et 10 mum et traverse l'air arrivant par la tubulure avant la combustion à l'intérieur de la chambre de combustion du moteur, ce qui améliore le rendement de combustion du moteur à combustion interne. La source de rayonnement peut comporter une pluralité de granulés céramiques ou une couche souple et continue d'un matériau céramique pulvérulent.Device (21) for improving the combustion efficiency of an internal combustion engine comprising a flexible and elongated sheet (5), a flexible metal reflector (6) fixed to this flexible sheet (5) and intended to reflect infrared radiation extreme, a ceramic radiation source (22) fixed to the reflector (6) as well as a fixing element (10) used to connect the flexible sheet to the suction pipe of the engine so that the radiation source is oriented towards the tubing. The extreme infrared radiation has a wavelength between 8 mum and 10 mum and passes through the air arriving through the tube before combustion inside the combustion chamber of the engine, which improves the combustion efficiency of the engine. internal combustion. The radiation source may comprise a plurality of ceramic granules or a flexible and continuous layer of a powdery ceramic material.

Description

SPECIFICATION
TITLE OF INVENTION
PROCESS AND DEVICE FOR IMPROVING COMBUSTION EFFICIENCY OF A COMBUSTION MACHINE
INDUSTRIAL FIELD
This invention relates to improvements in combustion efficiency of a combustion machine such as an internal combustion engine and more particularly to a process and a device for improving combustion efficiency of a combustion machine.
BACKGROUND ART In order to improve combustion efficiency of the internal combustion engine, various attempts have been made. One example of such attempts is disclosed in Japanese Patent No. 1,172,559, in which a pair of permanent magnets or low-power magnets are attached to a duct through which combustion air and/or fuel are introduced into a combustion chamber of an internal combustion engine. According to this patent, the magnetic field generated by the magnets affects the incoming air and improves the combustion efficiency of the engine. However, it has been found that the body of the engine made of a magnetic material is magnetized by the magnets, and the amount of generation of C02 , N0X and soot is increased rather than decreased.
DISCLOSURE OF INVENTION
Accordingly, one object of the present invention is to provide a process for improving combustion efficiency of a combustion machine such as an internal combustion engine which is simple and efficient. Another object of the present invention is to provide a device for improving combustion efficiency of a combustion machine which is simple in structure.
Another object of the present invention is to provide a device for improving combustion efficiency of a combustion machine which is efficient.
Still another object of the present invention is to provide a device for improving combustion efficiency of an internal combustion engine which is easily applicable to an engine already mounted to a vehicle.
With the above objects in view, according to the present invention, the process for improving combustion efficiency of a combustion machine comprises the step of preparing a radiation source of extreme infra-red radiation having a wave length of from 8 μ m to 10 μ m. This radiation source, which may be a plurality of ceramic pellets or a continuous layer of ceramic powder material, is placed in the vicinity of a duct through which air or an air-fuel mixture is introduced into the combustion chamber so that the air or the mixture incoming through the duct is irradiated by the extreme infra-red radiation before combustion within the combustion chamber, whereby the combustion efficiency of the combustion machine is improved. According to another aspect of the present invention, the device for improving combustion efficiency of a combustion machine having a duct comprises a radiation source of extreme infra-red radiation having a wave length of from 8 μ m to 10 μ m. This radiation source of extreme infra-red radiation is positioned by a support member in the vicinity of a duct through which air or an air-fuel mixture is introduced into the combustion chamber so that the air incoming through the duct is irradiated by the extreme infra-red radiation before combustion within the combustion chamber. The radiation source may be a plurality of ceramic pellets or a continuous layer of ceramic powder material.
The device for improving combustion efficiency of a combustion machine having a duct for introducing air into a combustion chamber may comprise a flexible sheet, and a flexible metallic reflector attached to the flexible sheet for reflecting the extreme infra-red radiation. A ceramic radiation source of extreme infra-red radiation having a wave length of from 8 μ m to 10 μ m is attached to the reflector. The radiation source may be a plurality of ceramic pellets or a continuous layer of ceramic powder material. A fastener is attached to the flexible sheet for attaching the flexible sheet to the duct with the radiation source facing toward the duct so that the air incoming through the duct is irradiated by the extreme infra-red radiation before combustion within the combustion chamber.
BRIEF DESCRIPTION OF DRAWINGS
The present invention will become more readily apparent from the following detailed description of the preferred embodiment of the present invention taken in conjunction with the accompanying drawings, in which: Fig. 1 is a schematic perspective view of the device for improving combustion efficiency of the pellet type of the present invention;
Fig. 2 is a schematic perspective view of the device for improving combustion efficiency illustrated in Fig. 1 but in a bent state;
Fig. 3 is a schematic side view of an internal combustion engine to which the combustion efficiency improving device of the present invention is applied; and Fig. 4 is a fragmental perspective view of the device for improving combustion efficiency of the sheet type of another embodiment of the present invention.
BEST MODE FOR CARRYING OUT THE INVENTION Figs. 1 to 3 illustrate one embodiment of a combustion efficiency improving device 1 of the present invention for combustion efficiency of a combustion machine such as an internal combustion engine 2 (Fig. 3) and a burner. The internal combustion engine 2 to be used with the device 1 of the present invention has a duct 3 through which air is introduced into a combustion chamber 4 of the engine 2.
The combustion improving device 1 comprises an elongated flexible base sheet 5 made of a suitable plastic material which preferably may be heat resistant. The base sheet 5 has attached thereto a flexible metallic reflector 6 for reflecting an extreme infra-red radiation. The reflector 6 may be a light-reflective aluminum foil.
Attached on the reflector 6 by a layer 7 of a bonding agent are a plurality of radiation sources 8 in the form of ceramic pellets of extreme infra-red radiation, which may preferably have a wave length of from 8 μ m to 10 μ m. The radiation source 8 is made of a ceramic material composed of 50% - 60% alumina, 20% - 30% iron oxide, 10% - 20% titanium oxide and 3% - 7% impurities including binder. In the preferred embodiment, the ceramic material is composed of 55% of alumina, 25% of iron oxide, 15% of titanium oxide and 5% of impurities including binder. The reflector 6, the bonding agent layer 7 and the radiation sources 8 are covered by a protective sheet 9 attached to the base sheet 5. The protective sheet 9 is also flexible and is transparent to the extreme infra-red radiation. The combustion improving device 1 also comprises a fastener 10 attached to the flexible base sheet 5 for attaching the flexible base sheet 5 to the duct 3 with the radiation source 8 facing toward the duct 3 so that the air incoming through the duct 3 into the combustion chamber 4 is irradiated by the extreme infra-red radiation before combustion within the combustion chamber 4. It is preferable that the fastener 10 allows the combustion improving device 1 to be easily detachably attached to the duct 3. Accordingly, the fastener 10 of the preferred embodiment is a magic tape or a Velcro fastener (Trade Name) which is a pair of pieces of tapes on which a large number of small nylon hooks and loops are planted so that, when two tapes are pressed together, the hooks and the loops engage each other to relatively strongly connect two tapes.
The combustion improving device 1 may preferably be attached to an air-fuel mixture intake duct or an intake manifold 3 of the internal combustion engine 2 as illustrated in Fig. 3. Alternatively it may be attached to an air duct 11 of an air cleaner 12 mounted to a carburator 13. Thus, the air incoming through the duct 3 is irradiated by the extreme infra-red radiation before combustion within the combustion chamber. Fig. 4 illustrates another embodiment of the present invention in which the combustion efficiency improving device 21 comprises a radiation source 22 which is in the form of a flexible layer 23 including a mixture of a ceramic powder material substantially continuously and uniformly distributed throughout the radiation source 22 so that the radiation is generated uniformly from substantially the entire surface of the layer 23. In Fig. 4, attached on the reflector 6 by a bonding agent are a radiation source 22 of extreme infra-red radiation in the form of a flexible layer 23 of a ceramic powder material substantially continuously and uniformly distributed throughout the layer of the radiation source 22. The radiation source 22 has a base sheet 24, which may be paper or a metal, on which the layer 23 of the ceramic powder material is attached. The radiation source 22 is enclosed within a vinyl chloride evacuated wrapper 24.
The reflector 6, the radiation source 22 within the evacuated wrapper 24 are covered by a protective sheet 9 attached to the base sheet 5. In other respects the structure of the device illustrated in Fig. 4 is the same as that described and illustrated in conjunction with Figs. 1 to 3.
The inventor of the present application has conducted experiments which clearly indicate that the combustion efficiency of an internal combustion engine with the combustion efficiency improving device of the present invention is used is improved as compared to the engine without the device of the present invention. The results of the tests are indicated below:
TEST 1
Table I indicates the results of a comparison test in which three buses in commercial service by JR Bus Tohoku Kabushiki Kaisha (former Japanese National Railways) are used. The combustion improving device as illustrated in Figs. 1 to 3 (pellet type) was wound around the fuel-air mixture intake manifold of the Isuzu Type DH100H diesel engine used in Isuzu Type CLM520-2325794 (car #1) alone and put in service on a commercial route in August, September and October of 1988. The same type of buses with the same type of engine (Car #2 and car #3) were operated without the combustion improving device on the same commercial route in August, September and October, 1988. From the tests it is clear that Car #1 with the combustion improving device 1 of the pellet type of the present invention exhibited a distance per fuel consumption of 3.17 km/1 whereas Car #2 and Car #3 exhibited the values of 2.92 km/1 and 2.94 km/1, respectively.
From November, 1988 to July, 1989, the similar comparison tests, in whiςh the only difference was that the combustion efficiency improving device 21 as illustrated in Fig. 4 (sheet type) was used instead of the previous pellet type device, were continued. From this second stage test, it is clear that Car #1 with the combustion improving device 21 of the sheet type of the present invention exhibited a distance per fuel consumption of 3.18 km/1 whereas Car #2 and Car #3 exhibited the values of 2.81 km/1 and 2.73 km/1, respectively.
Table I
Pellet Type Sheet Type — (with) Aug. sept. Oct. Total Mean Val Nov. Dec. Jan. Feb. March April May June July Total Mean
Distance (km) 5,159 3,209 4,765 12,953 4,318 5,107 5,639 4,963 4,219 5,187 3,933 5,867 4,355 5,882 45.157 5,
Fuel Consumption (1) 1,404 1,018 1,649 4,071 1,357 1.734 2,241 1,633 1,325 1,593 1,027 1,746 1.293 1,805 14,397 1,
Dist./Fuel Con. (km/1) 3.67 2.97 2.88 9.52 3.17 2.94 2.51 3.02 3.18 3.25 3.82 3.36 3.36 3.25 28.69 3
CAR //2 (without) Aug. Sept. Oct. Total Mean Val Nov. Dec. Jan. Feb. March April May June July Total Mean
Distance (km) 4,903 3.952 5.309 14,164 4,721 4,638 4,937 3,968 4,229 3.774 3.634 5,267 5,184 5,467 41,103 4, Fuel Consumption (1) 1,666 1,361 1,818 4,845 1,615 1,875 2,043 1,558 1,549 1,173 1,281 1,775 1,688 1,758 14,700 1,
Dist./Fuel Con. (km/1) 2.94 2.90 2.92 8.76 2.92 2.47 2.41 2.54 2.73 3.21 2.83 2.96 3.07 3.11 25.33 2
CAR #3 (without) Aug. Sept. Oct. Total Mean Val Nov. Dec. Jan. Feb. March April May June July Total Mean
Distance (km) 3,348 4,139 5,259 12,746 4,249 4.822 4,497 4,192 3,898 4,198 2,638 4,690 4,502 4,576 38,013 4, Fuel Consumption (1) 1,159 1,464 1,715 4,338 1,446 1,842 1,808 1,736 1,401 1,528 892 1,591 1,593 1,605 13,996 1, Dist./Fuel Con. (km/1) 2.88 2.82 3.06 8.76 2.94 2.61 2.48 2.41 2.78 2.74 2.95 2.94 2.82 2.85 24.58 2
TEST 2
Table II indicates the test results of another test which was conducted by the inventor of the present invention. In the test, a same Isuzu Type CXZ19J dump truck with an Isuzu Type 10PC1 diesel engine (15,014 cc) was used throughout the tests to obtain values of km/1 with and without the pellet-type combustion improving device illustrated in Figs. 1 to 3 under the non-loaded and loaded conditions with 10,450 kg sand. The tests were conducted in four 3 km test sections at different speed for each section. The average km/1 was obtained for four test runs at different speed by conducting four test runs on a straight 12 km test road having four sections of 3 km length each.
Table II
Load Comb.Effcy Sec.I Sec.II Sec.Ill Sec.IV Ave. Imprv.Device 50 km/h 60 km/h 70 km/h 80 km/h km/1
No Without (km/1) 4.1
Load With (km/1) 9.09
Load Without (km/1) 3.22 With (km/1) 3.33
TEST 3
In a still another test, Honda passenger car Type E- GA1 with an engine Type D12A was used to obtain data of the 10 mode exhaust gas test on CO, HC, NOx, C02 and distance/fuel consumption with and without the pellet-type combustion improving device illustrated in Figs. 1 to 3. The test was conducted by driving the car at ten prescribed different operating modes to cover 15 km by ADI Automotive Exhaust Gas Laboratory at Kanagawa, Japan. Table III indicates the test results.
Table III
CO HC NOx CO, km/1
As has been described above, according to the present invention, the process for improving combustion efficiency of a combustion machine comprises the step of preparing a radiation source of extreme infra-red radiation having a wave length of from 8 μ m to 10 μ m, and the radiation source, which may be of the pellet type or a sheet type, is placed in the vicinity of a duct through which air or an air-fuel mixture is introduced into the combustion chamber so that the air or the mixture incoming through the duct is irradiated by the extreme infra-red radiation before combustion within the combustion chamber. According to the combustion efficiency improving device of the present invention for improving combustion efficiency of a combustion machine having a duct, a radiation source of extreme infra-red radiation having a wave length of from 8 // a to 10 μ m, which may be the pellet type of the sheet type, can be positioned by a support member in the vicinity of a duct through which air or an air-fuel mixture is introduced into the combustion chamber so that the air incoming through the duct is irradiated by the extreme infra-red radiation before combustion within the combustion chamber.
Therefore, the combustion efficiency of the combustion machine such as an internal combustion engine is improved. Also, according to the present invention, the device for improving combustion efficiency of a combustion machine having a duct for introducing air into a combustion chamber may comprise a flexible sheet, and a flexible metallic reflector attached to the flexible sheet for reflecting the extreme infra-red radiation. A ceramic radiation source of extreme infra-red radiation having a wave length of from 8 μ m to 10 μ m, which may be the pellet type or the sheet type, is attached to the reflector. A fastener is attached to the flexible sheet for attaching the flexible sheet to the duct with the radiation source facing toward the duct so that the air incoming through the duct is irradiated by the extreme infra-red radiation before combustion within the combustion chamber. Therefore, the combustion efficiency of the combustion machine can be improved with a simple and efficient device which can easily be applied to an engine already mounted in a vehicle.

Claims

1. A process for improving combustion efficiency of a combustion machine having a duct for introducing air into a combustion chamber, comprising the steps of: preparing a source of extreme infra-red radiation having a wave length of from 8 μ m to 10 μ m; placing said source of extreme infra-red radiation in the vicinity of said duct so that the air incoming through said duct is irradiated by said extreme infra-red radiation before combustion within the combustion chamber; whereby the combustion efficiency of the internal combustion engine is improved.
2. A process for improving combustion efficiency as claimed in claim 1, wherein said radiation source comprises a plurality of radiation sources in the form of ceramic pellets.
3. A process for improving combustion efficiency as claimed in claim 1 , wherein said radiation source is in the form of a substantially continuous layer radiating an extreme infra-red radiation from the entire surface thereof.
4. A device for improving combustion efficiency of a combustion machine having a duct for introducing air into a combustion chamber, comprising: a source of extreme infra-red radiation having a wave length of from 8 μ m to 10 μ ; means for attaching said source of extreme infra-red radiation in the vicinity of said duct so that the air incoming through said duct is irradiated by said extreme infra-red radiation before combustion within the combustion chamber; whereby the combustion efficency of the internal combustion engine is improved.
5. A device for improving combustion efficiency as claimed in claim 4, wherein said radiation source comprises a plurality of radiation sources in the form of ceramic pellets.
6. A device for improving combustion efficiency as claimed in claim 4, wherein said radiation source is in the form of a substantially continuous layer radiating an extreme infra-red radiation from the entire surface thereof.
7. A device for improving combustion efficiency of an internal combustion engine having a duct for introducing air into a combustion chamber, comprising: a flexible sheet; a flexible metallic reflector attached to said flexible sheet for reflecting said extreme infra-red radiation; a ceramic radiation source of extreme infra-red radiation attached to said reflector; and fastener means attached to said flexible sheet for attaching said flexible sheet to said duct with said radiation source facing toward said duct so that the air incoming through said duct is irradiated by said extreme infra-red radiation before combustion within the combustion chamber; whereby the combustion efficiency of the internal combustion engine is improved.
8. A device for improving combustion efficiency as claimed in claim 7, wherein said radiation source comprises a plurality of radiation sources in the form of ceramic pellets.
9. A device for improving combustion efficiency as claimed in claim 7, wherein said radiation source is in the form of a substantially continuous layer radiating an extreme infra-red radiation from the entire surface thereof.
10. A device for improving combustion efficiency as claimed in claim 7, wherein said flexible sheet is an elongated sheet made of a refractory material.
11. A device for improving combustion efficiency as claimed in claim 7, wherein said flexible metallic reflector is an aluminum foil.
12. A device for improving combustion efficiency as claimed in claim 7, wherein said extreme infra-red radiation has a wave length of from 8 μ m to 10 μ m.
13. A device for improving combustion efficiency as claimed in claim 7, wherein said radiation souce made of a
* ceramic material is composed, by weight, of 50% - 60% alumina, 20% - 30% iron oxide, 10% - 20% titanium oxide and 3% - 7% inmpurities including binder.
14. A device for improving combustion efficiency as claimed in claim 7, wherein said ceramic material is composed, by weight, of 55% of alumina, 25% of iron oxide, 15% of titanium oxide and 5% of impurities including binder.
15. A device for improving combustion efficiency as claimed in claim 9, wherein said radiation source further comprises a base sheet on which said layer of ceramic powder material is attached.
16. A device for improving combustion efficiency as claimed in claim 9, wherein said radiation source further comprises an evacuated wrapper containing said layer of ceramic powder material under vacuum.
17. A device for improving combustion efficiency as claimed in claim 7, wherein said fastener comprises a pair of pieces of flexible tapes on which a large number of small nylon hooks and loops are planted so that, when two tapes are pressed together, the hooks and the loops engage each other to relatively strongly connect two tapes.
EP91911751A 1990-11-22 1991-07-08 Process and device for improving combustion efficiency of a combustion machine Withdrawn EP0513356A1 (en)

Applications Claiming Priority (2)

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JP319824/90 1990-11-22
JP2319824A JPH04191458A (en) 1990-11-22 1990-11-22 Device for electromagnetic wave processing of combustion air

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JP (1) JPH04191458A (en)
KR (1) KR940010735B1 (en)
CN (1) CN1061833A (en)
AU (1) AU8188891A (en)
BR (1) BR9106008A (en)
CA (1) CA2064589A1 (en)
CS (1) CS263491A3 (en)
MX (1) MX9100009A (en)
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KR920702463A (en) 1992-09-04
CA2064589A1 (en) 1992-05-23
BR9106008A (en) 1993-01-19
KR940010735B1 (en) 1994-10-24
MX9100009A (en) 1992-04-01
AU8188891A (en) 1992-06-25
CS263491A3 (en) 1992-10-14
CN1061833A (en) 1992-06-10
JPH04191458A (en) 1992-07-09
WO1992009802A1 (en) 1992-06-11

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