1. A method of manufacturing a matrix for removing mucus from in or around a nose comprising:
providing an absorbent matrix of mechanically bonded fibers, wherein the matrix has an absorbent capacity of approximately 1 to 5 grams of aqueous solution per 1 gram of matrix,
impregnating into the matrix biologically compatible alcohol-free aqueous solution comprising an inorganic salt appropriate to be applied into nasal passages in a concentration of 0.1 to 9 grams per 100 grams of solution, a preservative, and an emollient, wherein the solution is impregnated into the matrix in an amount less than approximately 80 percent of the absorbent capacity of the matrix such that the matrix has unused absorbent capacity but the amount is sufficient to apply the solution to a surface.
2. The method of claim 1 wherein the absorbent matrix is a fabric having a basis weight of approximately 10 to 100 grams per square meter.
3. The method of claim 1 wherein the absorbent matrix includes cotton.
4. The method of claim 1 wherein the inorganic salt includes one or more of: sodium chloride and potassium chloride.
5. The method of claim 1 wherein the preservative includes a chelating agent.
6. The method of claim 5 wherein the chelating agent includes one or more of: tetrasodium ethylenediamine tetraacetic acid (EDTA), disodium EDTA, trisodium EDTA, and dipotassium EDTA.
7. A disposable composition for removing mucus from in or around a nose comprising:
an absorbent matrix of mechanically bonded fibers having an absorbent capacity of approximately 1 to 5 grams of solution per 1 gram of matrix, and
an aqueous mucus-dissolving biologically compatible alcohol-free solution appropriate for application into nasal passages impregnated into the matrix, the amount of solution impregnated into the matrix being less than approximately 80 percent of the absorbent capacity of the matrix such that the matrix has unused absorbent capacity but the amount is sufficient to apply the solution to a surface, the solution comprising an inorganic salt in a concentration of approximately 0.1 to 9 grams per 100 grams of solution.
8. The composition of claim 7 wherein the solution further comprises an emollient, a preservative, and a surfactant.
9. The composition of claim 7 wherein the inorganic salt includes one or more of: sodium chloride and potassium chloride.
10. The composition of claim 8 wherein the emollient includes glycerin.
11. The composition of claim 8 wherein the preservative includes a chelating agent.
12. The composition of claim 11 wherein the chelating agent includes one or more of: tetrasodium ethylenediamine tetraacetic acid (EDTA), disodium EDTA, trisodium EDTA, and dipotassium EDTA.
13. The composition of claim 7 further comprising one or more of: aloe vera, lavender, chamomile, and an herbal additive.
14. The composition of claim 7 wherein the absorbent matrix is a fabric base having a basis weight of approximately 10 to 100 grams per square meter.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An exhaust gas recirculation device for cooling exhaust gas from an internal combustion engine, comprising
a plurality of exhaust flow ducts which are connected to an exhaust gas recirculation system of the internal combustion engine,
a heat exchange system providing a coolant to flow around the flow ducts in order to dissipate exhaust gas heat,
an insert which is arranged within and in thermal contact with at least one of the flow ducts, to permit exhaust gas to flow at least partially around the insert in a principal direction of exhaust gas flow, wherein
the insert comprises a plurality of profiled fins extending laterally across the at least one flow duct and arranged successively in the principal direction of exhaust gas flow, with the individual profiles of the profiled fins which are located successive in the principal flow direction of the exhaust gas being arranged so as to be laterally offset relative to one another.
2. A device according to claim 1, further comprising an oxidation catalytic converter arranged upstream of the plurality of flow ducts.
3. A device according to claim 1, wherein the insert is at least partially provided with a coating for catalytically oxidizing the exhaust gas and wherein the density of the profiles transversely with respect to the exhaust gas flow direction is more than approximately 50 profilesdm, in particular approximately 75 profilesdm.
4. A device according to claim 1, wherein the device comprises a stacked plate heat exchanger.
5. A device according to claim 1, wherein the device comprises a tube bundle heat exchanger.
6. A device according to claim 1, wherein the insert is comprised of a an austenitic steel.
7. A device according to claim 1, wherein the insert is comprised of aluminum.
8. A method for cooling exhaust gas from an internal combustion engine, comprising passing exhaust gas through an exhaust gas recirculation device according to claim 1.
9. A device according to claim 1, wherein a density of the profiles transversely with respect to the exhaust gas flow direction is between approximately 20 profilesdm and approximately 50 profilesdm.
10. A device according to claim 9, wherein the density of the profiles transversely with respect to the exhaust gas flow direction is between approximately 25 profilesdm and approximately 45 profilesdm.
11. A device according to claim 1, wherein the quotient of a length L of the profiles and a throughflow width s of the profiled fins transversely with respect to the exhaust gas flow direction is less than 4.
12. A device according to claim 11, wherein the quotient is less than 2. A device according to claim 8, wherein the quotient is less than approximately 1.5.
13. A device according to claim 1, wherein the profiles of the profiled fins have a length which is no greater than approximately 10 mm.
14. A device according to claim 13, wherein the profiles of the profiled fins have a length which is no greater than approximately 5 mm.
15. A device according to claim 14, wherein the profiles of the profiled fins have a length which is no greater than approximately 3 mm.
16. A device according to claim 1, wherein a height of the profiled fins is between approximately 3.5 mm and 10 mm.
17. A device according to claim 16, wherein the height is between approximately 4 mm and approximately 8 mm.
18. A device according to claim 17, wherein the height is between approximately 4.5 mm and approximately 6 mm.
19. A device according to claim 1, wherein the profiled fins are obliquely-toothed.
20. A device according to claim 19, wherein an angle between the profile side walls and a main direction of the profiled fins is between approximately 1\xb0 and approximately 45\xb0.
21. A device according to claim 20, wherein the angle is between approximately 5\xb0 and approximately 25\xb0.
22. A device according to claim 21, wherein the angle is between approximately 25\xb0 and approximately 35\xb0.
23. A device according to claim 22, wherein the angle is less than approximately 20\xb0 and the length L of the profiles is between approximately 1 mm and approximately 10 mm.
24. A device according to claim 22, wherein the angle is between approximately 25\xb0 and approximately 35\xb0 and the length L of the profiles is between approximately 1 mm and approximately 6 mm.
25. A device according to claim 22, wherein the angle is more than approximately 35\xb0 and the length L of the profiles is between approximately 1 mm and approximately 3 mm.