Yutaka Tanai
Yutaka Tanai, Shizuoka JP
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20100115928 | AQUEOUS UREA SOLUTION FEED DEVICE OF AN INTERNAL COMBUSTION ENGINE - An internal combustion engine wherein when an aqueous urea solution should be fed from an aqueous urea solution feed valve ( | 05-13-2010 |
20110061370 | EXHAUST PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE - In an internal combustion engine, an NO | 03-17-2011 |
Yutaka Tanai, Shizuoka-Ken JP
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20100205940 | EXHAUST EMISSION CONTROL SYSTEM OF INTERNAL COMBUSTION ENGINE AND EXHAUST EMISSION CONTROL METHOD - In an exhaust emission control system of an internal combustion engine, a NOx selective reduction catalyst is disposed in an engine exhaust passage, and an aqueous solution of urea stored in an aqueous-urea tank is supplied to the NOx selective reduction catalyst so as to selectively reduce NOx. A NOx sensor is provided in the engine exhaust passage downstream of the NOx selective reduction catalyst for detecting the NOx conversion efficiency of the NOx selective reduction catalyst, and the concentration of aqueous urea in the aqueous-urea tank is estimated from the detected NOx conversion efficiency. The exhaust emission control system and method make it possible to detect the concentration of aqueous urea at reduced cost. | 08-19-2010 |
Yutaka Tanai, Aichi JP
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20100192547 | EXHAUST EMISSION CONTROL DEVICE - The invention has an object of exerting favorable NO | 08-05-2010 |
Yutaka Tanai, Susono-Shi JP
Patent application number | Description | Published |
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20090301059 | EXHAUST PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE - In an internal combustion engine, an NO | 12-10-2009 |
20100037596 | EXHAUST PURIFICATION DEVICE OF COMPRESSION IGNITION TYPE INTERNAL COMBUSTION ENGINE - In an internal combustion engine, an NO | 02-18-2010 |
20100037599 | Exhaust purification device of internal combustion engine - In an internal combustion engine, an NO | 02-18-2010 |
20100043405 | Exhaust purification device of an internal combustion engine - In an internal combustion engine, an NO | 02-25-2010 |
20100058741 | EXHAUST PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE - In an internal combustion engine, an NO | 03-11-2010 |