EXHAUST EMISSION CONTROL DEVICE
PROBLEM TO BE SOLVED: To positively calibrate a zero point of a differential pressure sensor in an engine stop state. SOLUTION: The exhaust emission control device is equipped with a filter 1 arranged in a discharge passage 22 of an engine 20 to collect particulates in exhaust, a differential pressu...
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| creator | KUROZUMI NOBUO MIZOGUCHI KENTARO MATSUDA MITSUHIRO SAEGUSA TAKA |
| description | PROBLEM TO BE SOLVED: To positively calibrate a zero point of a differential pressure sensor in an engine stop state. SOLUTION: The exhaust emission control device is equipped with a filter 1 arranged in a discharge passage 22 of an engine 20 to collect particulates in exhaust, a differential pressure sensor 3 for detecting differential pressure between an exhaust pressure on the upstream side of the filter and an exhaust pressure on the downstream side of the filter, and a zero point calibration means 30 for calibrating the zero point of the differential pressure sensor 3 in an engine stop state. In the zero point calibration means 30, the zero point calibration is executed when the engine temperature exceeds a predetermined temperature. COPYRIGHT: (C)2006,JPO&NCIPI |
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SOLUTION: The exhaust emission control device is equipped with a filter 1 arranged in a discharge passage 22 of an engine 20 to collect particulates in exhaust, a differential pressure sensor 3 for detecting differential pressure between an exhaust pressure on the upstream side of the filter and an exhaust pressure on the downstream side of the filter, and a zero point calibration means 30 for calibrating the zero point of the differential pressure sensor 3 in an engine stop state. In the zero point calibration means 30, the zero point calibration is executed when the engine temperature exceeds a predetermined temperature. 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SOLUTION: The exhaust emission control device is equipped with a filter 1 arranged in a discharge passage 22 of an engine 20 to collect particulates in exhaust, a differential pressure sensor 3 for detecting differential pressure between an exhaust pressure on the upstream side of the filter and an exhaust pressure on the downstream side of the filter, and a zero point calibration means 30 for calibrating the zero point of the differential pressure sensor 3 in an engine stop state. In the zero point calibration means 30, the zero point calibration is executed when the engine temperature exceeds a predetermined temperature. COPYRIGHT: (C)2006,JPO&NCIPI</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION STEAM ENGINES TRANSPORTING WEAPONS |
| title | EXHAUST EMISSION CONTROL DEVICE |
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