Boots – shoes – and leggings
Patent
1980-07-28
1982-02-02
Gruber, Felix D.
Boots, shoes, and leggings
364503, 422111, 423235, G05D 1102, G01D 5334
Patent
active
043143458
ABSTRACT:
In a first processor unit the relationship between the amount of nitrogen oxides in a combustion exhaust gas and a numerical value representing an amount of combustion, e.g. - fuel flow rate or the like, is stored. In a second processor unit the ratio of ammonia to nitrogen oxides as a function of the combustion exhaust gas temperature is stored. A numerical value corresponding to the actual measured amount of combustion is inputted to the first processor unit to derive the amount of nitrogen oxides in the combustion exhaust gas. The actual measured combustion exhaust gas temperature is inputted to the second processor unit to derive the ratio of ammonia to nitrogen oxides. The optimum amount of ammonia to be injected is derived by multiplying the amount of nitrogen oxides, derived by means of the first processor unit, by the ratio of ammonia to nitrogen oxides derived by means of the second processor unit. In a preferable embodiment of the present invention, the ratio of ammonia to nitrogen oxides is corrected before the multiplication by means of a correction factor which is stored in a third processor unit and which corresponds to a time variation rate of the combustion exhaust gas temperature.
REFERENCES:
patent: 3599427 (1971-08-01), Jones et al.
patent: 3846981 (1974-11-01), Paczkowski
patent: 4112053 (1978-09-01), Sanada et al.
patent: 4188190 (1980-02-01), Muraki et al.
patent: 4208381 (1980-06-01), Isahaya et al.
Shiraishi Yoshihiro
Ukawa Naohiko
Gruber Felix D.
Mitsubishi Jukogyo Kabushiki Kaishi
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