Patent application number | Description | Published |
20090094964 | EXHAUST PURIFICATION APPARATUS FOR ENGINE - An exhaust purification apparatus for an engine comprises an upstream casing that has a cylindrical shape and accommodates a particulate filter; an exhaust gas outlet that is formed in a side wall of the upstream casing and discharges the exhaust gas that has passed through the particulate filter; a urea-water injector that is fixed to the upstream casing located in a position opposite to the exhaust gas outlet and injects urea-water toward the exhaust gas outlet; and a downstream casing that accommodates an ammonia selective reduction-type NOx catalyst into which the exhaust gas discharged from the exhaust gas outlet flows. | 04-16-2009 |
20090100825 | EXHAUST PURIFICATION APPARATUS FOR ENGINE - An exhaust purification apparatus comprises an ammonia selective reduction-type NOx catalyst that selectively reduces NOx within exhaust gas by using ammonia as a reducing agent, a urea-water supply device that supplies urea-water into the exhaust gas existing upstream of the ammonia selective reduction-type NOx catalyst, and a control unit. The control unit controls the urea-water supply device so that the urea-water is intermittently supplied according to predetermined supply duration time and predetermined supply suspension time when the urea-water is supplied from the urea-water supply device for the purpose of providing ammonia to the ammonia selective reduction-type NOx catalyst. | 04-23-2009 |
20090165447 | EXHAUST PURIFICATION DEVICE FOR ENGINE - An agitating device for agitating the exhaust gas of an engine includes a base plate having a plurality of through holes that are defined by radially extending spoke portions and a ring-like rim portion and are arranged in a circular pattern in a circumferential direction of the base plate, and a plurality of fins expanding from the respective spokes on a slant with respect to the base plate. The base plate is fixed in the exhaust passage by the rim portion being jointed to the exhaust passage at welded portions. The welded portions are each disposed in an area between respective two adjacent spoke portions in the circumferential direction of the base plate, and an outer edge of the rim portion positioned on the outer side of the rim portion in extending directions of the spoke portions is located next to the exhaust passage with a gap provided therebetween. | 07-02-2009 |
20100107612 | EXHAUST PURIFICATION APPARATUS FOR AN ENGINE - An exhaust purification apparatus for an engine has a first casing ( | 05-06-2010 |
20100218486 | EXHAUST GAS PURIFICATION DEVICE - An exhaust gas purification device includes a NO | 09-02-2010 |
20100251698 | EXHAUST PURIFICATION SYSTEM FOR HYBRID ELECTRIC VEHICLE - An ammonia selective reduction-type NOx catalyst ( | 10-07-2010 |
20100268438 | EXHAUST PURIFICATION DEVICE FOR HYBRID ELECTRIC VEHICLE - An ammonia selective reduction-type NOx catalyst ( | 10-21-2010 |