TERAHERTZ MATERIAL FOR EMISSION REDUCTION AND FUEL SAVING OF GASOLINE VEHICLE AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
20220098502 · 2022-03-31
Inventors
Cpc classification
C10L2230/22
CHEMISTRY; METALLURGY
C10L2200/024
CHEMISTRY; METALLURGY
C10L2200/0213
CHEMISTRY; METALLURGY
C10L1/1233
CHEMISTRY; METALLURGY
B01J19/10
PERFORMING OPERATIONS; TRANSPORTING
B01J19/088
PERFORMING OPERATIONS; TRANSPORTING
International classification
Abstract
A terahertz material for emission reduction and fuel saving of gasoline vehicles and its preparation method and application, includes the following raw materials in parts by weight: 20˜35 SiO.sub.x, 3˜15 Al.sub.2O.sub.3, 25˜45 SiO.sub.2, 15˜25 Fe.sub.2O.sub.3, 20˜40 ochre, 0.5˜2 barium tungstate, 15˜25 CaCO.sub.3, wherein a preparation methodincludes: mixing the component raw materials according to the above ratio; after crushing, performing heating to 600˜1,200° C. in an oxygen-free environment, maintaining the temperature for 3˜8 hours, and then performing crushing for the second time; and performing enhancement processing with terahertz irradiation rays at 10 mW to 100 W for 5 seconds to 1 hour to obtain a terahertz material, wherein the terahertz material improves combustion efficiency by increasing the molecular activity of gasoline and air participating in combustion work and reducing molecular groups, and has the effects of emission reduction, energy saving and improving power.
Claims
1-9: (canceled)
10: A composition for manufacturing a terahertz material, including the following raw materials in parts by weight: 20˜35 SiO.sub.x, 3˜15 Al.sub.2O.sub.3, 25˜45 SiO.sub.2, 15˜25 Fe.sub.2O.sub.3, 20˜40 ochre, 0.5˜2 barium tungstate, 15˜25 CaCO.sub.3, wherein SiO.sub.x is made by mixing crude silicon, SiO.sub.2 and Binchotan in a weight ratio of 1:(3˜5):(5˜10), and heating to 700˜1500° C. in an oxygen-free environment for 1˜8 hours to obtain a black crystal SiO.sub.x.
11: The composition for manufacturing a terahertz material, as recited in claim 10, including the following raw materials in parts by weight: 25 SiO.sub.x, 8 Al.sub.2O.sub.3, 30 SiO.sub.2, 20 Fe.sub.2O.sub.3, 30 ochre, 1 barium tungstate, 20 CaCO.sub.3, wherein SiO.sub.x is made by mixing crude silicon, SiO.sub.2 and Binchotan in a weight ratio of 1:4:8, and heating to 1200° C. in an oxygen-free environment for 5 hours to obtain a black crystal SiO.sub.x.
12: The composition for manufacturing a terahertz material, as recited in claim 10, including the following raw materials in parts by weight: 20 SiO.sub.x, 15 Al.sub.2O.sub.3, 25 SiO.sub.2, 25 Fe.sub.2O.sub.3, 20 ochre, 2 barium tungstate, 15 CaCO.sub.3, wherein SiO.sub.x is made by mixing crude silicon, SiO.sub.2 and Binchotan in a weight ratio of 1:3:5, and heating to 700° C. in an oxygen-free environment for 8 hours to obtain a black crystal SiO.sub.x.
13: The composition for manufacturing a terahertz material, as recited in claim 10, including the following raw materials in parts by weight: 35 SiO.sub.x, 3 Al.sub.2O.sub.3, 45 SiO.sub.2, 5 Fe.sub.2O.sub.3, 40 ochre, 0.5 barium tungstate, 25 CaCO.sub.3, wherein SiO.sub.x is made by mixing crude silicon, SiO.sub.2 and Binchotan in a weight ratio of 1:5:10, and heating to 1500° C. in an oxygen-free environment for 1 hour to obtain a black crystal SiO.sub.x.
14: The composition for manufacturing a terahertz material, as recited in claim 10, including the following raw materials in parts by weight: 25 SiO.sub.x, 10 Al.sub.2O.sub.3, 10 SiO.sub.2, 40 Fe.sub.2O.sub.3, 18 ochre, 1.5 barium tungstate, 22 CaCO.sub.3, wherein SiO.sub.x is made by mixing crude silicon, SiO.sub.2 and Binchotan in a weight ratio of 1:4:7, and heating to 1000° C. in an oxygen-free environment for 5 hours to obtain a black crystal SiO.sub.x.
15: A preparation method for a terahertz material, comprising the following steps: (1) mixing crude silicon, SiO.sub.2 and Binchotan in a weight ratio of 1:(3˜5):(5˜10), and heating to 700˜1500° C. in an oxygen-free environment for 1˜8 hours to obtain a black crystal SiO.sub.x; (2) mixing the prepared SiO.sub.x with other raw materials in parts by weight: 3˜15 Al.sub.2O.sub.3, 25˜45 SiO.sub.2, 15˜25 Fe.sub.2O.sub.3, 20˜40 ochre, 0.5˜2 barium tungstate, 15˜25 CaCO.sub.3, crushing to obtain a mixture, wherein the fineness of the mixture reaches 200˜500 mesh, and then adding an appropriate amount of water, stirring and turning into small balls, heating to 600˜1200° C. in an oxygen free environment for 3˜8 hours, and carrying out a secondary crushing; (3) detecting the raw terahertz material, if the raw terahertz material has an infrared emissivity which is ≥0.92, and then crushing and powdering the raw terahertz material to make the fineness of the crushed and powdered raw terahertz material more than 10000 mesh, and then enhancing the crushed and powdered raw terahertz material by a terahertz irradiation line to obtain a terahertz material for emission reduction and fuel saving of gasoline vehicle.
16: The preparation method for a terahertz material, as recited in claim 15, the other raw materials including the following materials in parts by weight: 25 SiO.sub.x, 8 Al.sub.2O.sub.3, 30 SiO.sub.2, 20 Fe.sub.2O.sub.3, 30 ochre, 1 barium tungstate, 20 CaCO.sub.3, wherein SiO.sub.x is made by mixing crude silicon, SiO.sub.2 and Binchotan in a weight ratio of 1:4:8, and heating to 1200° C. in an oxygen-free environment for 5 hours to obtain a black crystal SiO.sub.x.
17: The preparation method for a terahertz material, as recited in claim 15, the other raw materials including the following materials in parts by weight: 20 SiO.sub.x, 15 Al.sub.2O.sub.3, 25 SiO.sub.2, 25 Fe.sub.2O.sub.3, 20 ochre, 2 barium tungstate, 15 CaCO.sub.3, wherein SiO.sub.x is made by mixing crude silicon, SiO.sub.2 and Binchotan in a weight ratio of 1:3:5, and heating to 700° C. in an oxygen-free environment for 8 hours to obtain a black crystal SiO.sub.x.
18: The preparation method for a terahertz material, as recited in claim 15, the other raw materials including the following materials in parts by weight: 35 SiO.sub.x, 3 Al.sub.2O.sub.3, 45 SiO.sub.2, 5 Fe.sub.2O.sub.3, 40 ochre, 0.5 barium tungstate, 25 CaCO.sub.3, wherein SiO.sub.x is made by mixing crude silicon, SiO.sub.2 and Binchotan in a weight ratio of 1:5:10, and heating to 1500° C. in an oxygen-free environment for 1 hour to obtain a black crystal SiO.sub.x.
19: The preparation method for a terahertz material, as recited in claim 15, the other raw materials including the following materials in parts by weight: 25 SiO.sub.x, 10 Al.sub.2O.sub.3, 10 SiO.sub.2, 40 Fe.sub.2O.sub.3, 18 ochre, 1.5 barium tungstate, 22 CaCO.sub.3, wherein SiO.sub.x is made by mixing crude silicon, SiO.sub.2 and Binchotan in a weight ratio of 1:4:7, and heating to 1000° C. in an oxygen-free environment for 5 hours to obtain a black crystal SiO.sub.x.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0019]
[0020]
[0021]
[0022]
[0023]
[0024]
[0025]
[0026]
[0027]
[0028]
[0029]
[0030]
[0031] The reference number 1 represents the internal combustion engine, the reference number 2 represents the main water tank, the reference number 3 represents the coolant/cooling cycle with terahertz material, the reference number 4 represents the main water tank port, the reference number 5 represents the auxiliary water tank, the reference number 6 represents the small water tank-cab warm air radiator, the reference number 7 represents the coolant with terahertz material, the reference number 8 represents the fuel (gasoline, diesel, liquefied gas, etc.), the reference number 9 represents the fuel tank, the reference number 10 represents the fuel pump, the reference number 11 represents the activation sheet containing terahertz material, the reference number 12 represents the air inlet, the reference number 13 represents the air (micro orderly arrangement), the reference number 14 represents the terahertz wave, the reference number 15 represents the activated air (micro chaotic disorder), the reference number 16 represents the outer shell of air filter, the reference number 17 represents the air filter element, the reference number 18 represents the filtered air (disordered), the reference number 19 represents the fuel nozzle, the reference number 20 represents the internal combustion engine-combustion chamber, the reference number 21 represents the fuller contact between activated air and fuel, the reference number 22 represents the piston/compression stroke start, the reference number 23 represents the exhaust port, the reference number 24 represents the coolant/main water tank filled with terahertz material, the reference number 25 represents the activation sheet/air cleaner housing containing terahertz material, the reference number 26 represents the activation sheet/engine intake pipe containing terahertz material, 27 represents the activation sheet/fuel pipe containing terahertz material 28 represents the activation sheet/fuel tank bottom containing terahertz material, 29 represents the special coolant containing terahertz material, the reference number 30 represents the main water tank containing terahertz material, the reference number 31 represents the air filter element containing terahertz material, the reference number 32 represents the air filter housing containing terahertz material, the reference number 33 represents the engine intake pipe containing terahertz material, the reference number 34 represents the fuel pipe containing terahertz material, the reference number 35 represents the fuel tank bottom shell containing terahertz material, the reference number 36 represents the ceramic piston containing terahertz material, spark plug, cylinder liner, the reference number 017 represents the terahertz wave electron generator, the reference number 018 represents the roasted terahertz material semi-finished product, the reference number 015 represents the cable, the reference number 012 represents the tunnel frame, the reference number 011 represents the transmission belt, the reference number 01 represents the logic unit, the reference number 02 represents the fundamental wave unit, the reference number 03 represents the equalization circuit, the reference number 04 represents the amplifier, the reference number 05 represents the radiator, the reference number 06 represents the driver, the reference number 07 represents the BAW filter, the reference number 08 represents the charge pump, the reference number 09 represents the electro-photon transition module, the reference number 010 represents the electron beam transmission to resonant cavity, the reference number 035 represents the electron gun, the reference number 036 represents the pulse deflection coil, the reference number 037 represents the electron beam, the reference number 038 represents the anode and the reference number 039 represents the transition cavity.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0032] The present invention will be further described below in combination with the following specific embodiments. It should be understood that the following embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. Those skilled in the art can make some non-essential improvements and adjustments according to the contents of the present invention.
Example 1
[0033] A terahertz material for emission reduction and fuel saving of a gasoline vehicle including the following raw materials in parts by weight: 25 SiO.sub.x, 8 Al.sub.2O.sub.3, 30 SiO.sub.2, 20 Fe.sub.2O.sub.3, 30 ochre, 1 barium tungstate, 20 CaCO.sub.3.
[0034] The preparation method of the terahertz material for emission reduction and fuel saving of a gasoline vehicle, comprising the following steps:
[0035] (1) mixing crude silicon, SiO.sub.2 and Binchotan in a weight ratio of 1:4:8, and heating to 1200° C. in an oxygen-free environment for 5 hours to obtain a black crystal SiO.sub.x;
[0036] (2) mixing the prepared SiO.sub.x with other raw materials in accordance with the stated proportions, crushing, the fineness reaches 200˜500 mesh, and adding an appropriate amount of water, stirring, turning it into small balls through a circular rotary table, heating to 800° C. in an oxygen free environment for 5 hours, and carrying out a secondary crushing;
[0037] (3) detecting its infrared emissivity, which is ≥0.92, and then crushing and powder processing, the fineness reaches is more than 10000 mesh, after being enhanced by a terahertz irradiation line (20 W power, the time of duration: 10 min) to obtain a terahertz materials for emission reduction and fuel saving of a gasoline vehicle.
[0038] As shown in
[0039] As shown in
[0040] As shown in
Example 2
[0041] a terahertz material for emission reduction and fuel saving of a gasoline vehicle including the following raw materials in parts by weight: 20 SiO.sub.x, 15 Al.sub.2O.sub.3, 25 SiO.sub.2, 25 Fe.sub.2O.sub.3, 20 ochre, 2 barium tungstate, 15 CaCO.sub.3.
[0042] The preparation method of the terahertz material for emission reduction and fuel saving of a gasoline vehicle, comprising the following steps:
[0043] (1) mixing crude silicon, SiO.sub.2 and Binchotan in a weight ratio of 1:3:5, and heating to 700° C. in an oxygen-free environment for 8 hours to obtain a black crystal SiO.sub.x; and then mixing the prepared SiO.sub.x with other raw materials in accordance with the stated proportions, crushing, the fineness reaches 200˜500 mesh, and adding an appropriate amount of water, stirring, turning it into small balls through a circular rotary table, heating to 1000° C. in an oxygen free environment for 5 hours, and carrying out a secondary crushing; and then detecting its infrared emissivity, which is ≥0.92, and then crushing and powder processing, the fineness reaches is more than 10000 mesh, after being enhanced by a terahertz irradiation line (50 W power, the time of duration: 1 min) to obtain a terahertz materials for emission reduction and fuel saving of a gasoline vehicle.
[0044] The structure of the terahertz irradiation source is the same as that in example 1.
Example 3
[0045] a terahertz material for emission reduction and fuel saving of a gasoline vehicle including the following raw materials in parts by weight: 35 SiO.sub.x, 3 Al.sub.2O.sub.3, 45 SiO.sub.2, 5 Fe.sub.2O.sub.3, 40 ochre, 0.5 barium tungstate, 25 CaCO.sub.3.
[0046] The preparation method of the terahertz material for emission reduction and fuel saving of a gasoline vehicle, comprising the following steps:
[0047] (1) mixing crude silicon, SiO.sub.2 and Binchotan in a weight ratio of 1:5:10, and heating to 1500° C. in an oxygen-free environment for 1 hour to obtain a black crystal SiO.sub.x;
[0048] (2) mixing the prepared SiO.sub.x with other raw materials in accordance with the stated proportions, crushing, the fineness reaches 200˜500 mesh, and adding an appropriate amount of water, stirring, turning it into small balls through a circular rotary table, heating to 600° C. in an oxygen free environment for 8 hours, and carrying out a secondary crushing;
[0049] (3) detecting its infrared emissivity, which is ≥0.92, and then crushing and powder processing, the fineness reaches is more than 10000 mesh, after being enhanced by a terahertz irradiation line (100 W power, the time of duration: 5 sec) to obtain a terahertz materials for emission reduction and fuel saving of a gasoline vehicle.
[0050] The structure of the terahertz irradiation source is the same as that in example 1.
Example 4
[0051] a terahertz material for emission reduction and fuel saving of a gasoline vehicle including the following raw materials in parts by weight: 25 SiO.sub.x, 10 Al.sub.2O.sub.3, 10 SiO.sub.2, 40 Fe.sub.2O.sub.3, 18 ochre, 1.5 barium tungstate, 22 CaCO.sub.3.
[0052] The preparation method of the terahertz material for emission reduction and fuel saving of a gasoline vehicle, comprising the following steps:
[0053] (1) mixing crude silicon, SiO.sub.2 and Binchotan in a weight ratio of 1:4:7, and heating to 1000° C. in an oxygen-free environment for 5 hours to obtain a black crystal SiO.sub.x;
[0054] (2) mixing the prepared SiO.sub.x with other raw materials in accordance with the stated proportions, crushing, the fineness reaches 200˜500 mesh, and adding an appropriate amount of water, stirring, turning it into small balls through a circular rotary table, heating to 1200° C. in an oxygen free environment for 3 hours, and carrying out a secondary crushing;
[0055] (3) detecting its infrared emissivity, which is ≥0.92, and then crushing and powder processing, the fineness reaches is more than 10000 mesh, after being enhanced by a terahertz irradiation line (10 mW power, the time of duration: 1 hour) to obtain a terahertz materials for emission reduction and fuel saving of a gasoline vehicle.
[0056] The structure of the terahertz irradiation source is the same as that in example 1.
Exemplary Application 1
[0057]
[0058] Main performance: Hydrocarbon HC is reduced by 35˜99%, nitrogen oxide NO.sub.x is reduced by 40˜90%, carbon monoxide CO is reduced by 30˜−5%, urban energy saving is 6-10%, high-speed energy saving is 9-20% (limit 40%), 0-100 km/h travel distance is shortened by 10%, 0-100 km/h acceleration time is reduced by 3%, power curve is obviously improved, the first-gear fuel label is lowered and fuel economy is more efficient.
[0059] The terahertz material of the present invention is made into the engine coolant 3 having functions of emission reduction, energy saving and power enhancement, which is injected into the cooling system through the main water tank port 4. Some engine systems do not have a main water tank port, it can be injected into the engine system from the auxiliary water tank 5.
[0060] The application of the terahertz material of the present invention in gasoline engines includes the following features:
[0061] 1) The performance of the antifreeze of the terahertz coolant is the same as that of the ordinary antifreeze, and the specifications are the same as that of the ordinary antifreeze.
[0062] 2) The service life of the terahertz coolant is the same as that of ordinary antifreeze, and its performance as a coolant during this period is not attenuated. As long as the system does not leak, or the loss of coolant caused by a vehicle accident, its emission reduction and energy saving performance will not change.
[0063] 3) The terahertz coolant is safe for people without nuclear radiation (particle radiation).
[0064] 4) When the air filter housing is made, the terahertz material is mixed with the plastic master batch for injection molding. Do not mix into the metal casing. The filter having a metal casing can only use the terahertz activation sheet 11 (shown in
[0065] 5) The air filter housing with the terahertz material added, as an air filter housing, has the same strength and temperature resistance as the ordinary air filter housings. The terahertz materials have no effect on the durability of plastics, reducing emissions and the durability of energy saving and improving power performance is more than 20 years.
[0066] This scheme is very suitable for automobile and engine production plants to directly adopt during vehicle production.
Exemplary Application 2
[0067] As shown in
[0068] The antifreeze essence 24 is injected into the cooling system through the main water tank port. Some engine systems do not have a main water tank port, it can be injected into the engine system from the auxiliary water tank. It is extremely easy to stick the air activation sheet on the outside 25 of the air filter housing. However, in some vehicles, there is no flat surface on the air filter housing for sticking the air activating sheet, and sticking the air activating sheet on the outside of the engine intake pipe 26 can achieve almost the same effect. The implement difficulty of the fuel activation sheet is much greater than that of the air activation sheet, and the efficiency improvement is not obvious, so it is not necessary to use it.
[0069] 1) After the antifreeze essence is added into the cooling system, its cooling and antifreeze performance is the same as that of ordinary antifreeze, and its emission reduction and energy saving performance is the same as that of the terahertz coolant.
[0070] 2) After the antifreeze essence is added into the cooling system, the service life of the terahertz coolant is the same as that of ordinary antifreeze, and its performance as a coolant during this period is not attenuated. As long as the system does not leak, or the loss of coolant caused by a vehicle accident, its emission reduction and energy saving performance will not change.
[0071] 3) The antifreeze essence and the air-activated sheet are safe for people without nuclear radiation (particle radiation).
[0072] 4) The service life of the air activated sheet is 10 years, and its temperature resistance range is −40˜200° C., which is fully adapted to the harsh environment in the engine compartment.
[0073] This scheme is very suitable for the emission reduction and energy saving modification of existing vehicles, which will surely bring considerable benefits to the society and car owners.
Exemplary Application 3
[0074] As shown in
[0075] The terahertz material for emission reduction and fuel saving of the present invention can only be added to materials that are formed at medium and low temperature (<500° C.) such as ceramics, plastics, silica gel, and rubber. For parts made of metal, composite materials can be used, a layer of organic material is attached to the metal, and the organic material is added with the method of reducing emission and fuel saving terahertz material of the present invention.
[0076] The life and strength of all parts in this solution are exactly the same as those of the original parts, and the specifications and dimensions are also exactly the same. It is only necessary to pay attention not to use the original parts when repairing and replacing, otherwise the emission reduction and energy saving effect will be greatly reduced.
Engine Bench Test (Exhaust Gas Net: Coolant Additive and Air Activation Paste)
[0077] Full diesel gasoline engine model: A15G; Fuel: 92 gasoline (including alcohol); Cylinder arrangement In line four cylinders; Test time: Jan. 16, 2019; Power: 84 kw; Torque: 143 nm; displacement 1.499 L; Test location: Luoyang, Henan; New energy engine laboratory, Henan University of science and technology. The test results are shown in table 1-4 and
TABLE-US-00001 TABLE 1 Energy saving effect of exhaust gas net: Fuel Consumption g/kWh Revolution/ Torque/ Original Exhaust rpm Nm Working Condition Machine Gas Net 3000 29 3000 rpm-29 Nm 385.3 355.3 58 3000 rpm-58 Nm 333.8 282.1 86 3000 rpm-86 Nm 297.4 259.9 103.5 3000 rpm-103.5 Nm 260.6 284.2 115 3000 rpm-115 Nm 293.4 278.3 5000 32.5 5000 rpm-32.5 Nm 466.5 376.7 65 5000 rpm-65 Nm 354.4 350.1 97.5 5000 rpm-97.5 Nm 312.1 302.2 117 5000 rpm-117 Nm 329.7 308 130 5000 rpm-130 Nm 320.3 326.9
TABLE-US-00002 TABLE 2 Emission reduction effect of exhaust gas net-carbon monoxide: CO ppm Original Exhaust Suppression Torque/Nm Revolution-Torque Machine Gas Net Ratio 29 3000 rpm-29 Nm 58 3000 rpm-58 Nm 2393 1837 23.2% 86 3000 rpm-86 Nm 2374 2192 7.7% 103.5 3000 rpm-103.5 Nm 1635 1471 10.0% 115 3000 rpm-115 Nm 1510 1365 9.6% 32.5 5000 rpm-32.5 Nm over over 65 5000 rpm-65 Nm over over 97.5 5000 rpm-97.5 Nm over over 117 5000 rpm-117 Nm over over 130 5000 rpm-130 Nm over over
TABLE-US-00003 TABLE 3 Emission reduction effect of exhaust gas net- hydrocarbon: HC ppm Torque/ Original Exhaust Suppression Nm Revolution-Torque Machine Gas Net Ratio 29 3000 rpm-29 Nm 2355 2236 5.1% 58 3000 rpm-58 Nm 2187 2014 7.9% 86 3000 rpm-86 Nm 2000 2070 −3.5% 103.5 3000 rpm-103.5 Nm 1875 1972 −5.2% 115 3000 rpm-115 Nm 2548 2396 6.0% 32.5 .sup. 5000 rpm-32.5 Nm 2061 1967 4.6% 65 5000 rpm-65 Nm 2280 2081 8.7% 97.5 .sup. 5000 rpm-97.5 Nm 2100 1918 8.7% 117 5000 rpm-117 Nm 1968 1872 4.9% 130 5000 rpm-130 Nm 2185 1905 12.8%
TABLE-US-00004 TABLE 4 Emission reduction effect of exhaust gas net-nitrogen oxide: NO.sub.x ppm Original Exhaust Gas Suppression Torque/Nm Revolution-Torque Machine Net Ratio 29 3000 rpm-29 Nm 1388 450.7 67.5% 58 3000 rpm-58 Nm 2748 987 64.1% 86 3000 rpm-86 Nm 3281 1243 62.1% 103.5 3000 rpm-103.5 Nm 3421 1279 62.6% 115 3000 rpm-115 Nm 3559 1383 61.1% 32.5 5000 rpm-32.5 Nm 975 850.3 12.8% 65 5000 rpm-65 Nm 1290 708.6 45.1% 97.5 5000 rpm-97.5 Nm 1881 552.9 70.6% 117 5000 rpm-117 Nm 1418 431.8 69.5% 130 5000 rpm-130 Nm 1114 347.3 68.8%
[0078] The basic principles and main features of the invention and the advantages of the invention are shown and described above. Those skilled in the art should understand that the invention is not limited by the above embodiments. What is described in the above embodiments and specifications is only to explain the principle of the invention. On the premise of not departing from the spirit and scope of the invention, the invention will have various changes and improvements, which fall within the scope of the claimed invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.