Patent application number | Description | Published |
20090019837 | EXHAUST PURIFICATION DEVICE FOR ENGINE - An exhaust purification device for an engine comprises a catalytic device for purifying exhaust by using an additive, a deflecting device for allowing the exhaust to flow through and causing the exhaust to be agitated, upstream of the catalytic device, an additive injection device for injecting an additive, downstream of the deflecting device, a temperature detection device for detecting exhaust temperature, downstream of the deflecting device, and a control unit for controlling the additive injection device on the basis of the exhaust temperature detected by the temperature detection device. The temperature detection device has a temperature detection part located within a region where the exhaust having passed through the deflecting device has increased velocity. | 01-22-2009 |
20090019842 | EXHAUST PURIFICATION DEVICE FOR ENGINE - An exhaust purification device for an engine comprises a catalyst device that purifies the exhaust gas of the engine by using an additive; a venturi-shaped mixing chamber that is disposed upstream from the catalyst device and extends from a taper portion with a diameter tapering downstream to continue to a constricted portion with a minimum diameter and then to a flared portion with a diameter that is increased in the downstream direction; a swirl-generating device that is disposed in vicinity of a most upstream section of the taper portion of the mixing chamber and generates a swirling flow in the exhaust gas; and an additive-injection device that is disposed upstream from the constricted portion of the mixing chamber and downstream from the swirl-generating device, and injects the additive into the mixing chamber. | 01-22-2009 |
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 |
20090100827 | EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE - An exhaust gas purification apparatus includes a venturi constituting part of an exhaust pipe and formed by joining two axially divided parts together, and a reducing agent supply device for injecting an aqueous urea solution into the exhaust pipe. The venturi is positioned such that joints thereof are located to the right and left, respectively, of the center of a cross section perpendicular to the axis of the venturi. | 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 |
20100332484 | DOCUMENT INFORMATION CREATION DEVICE, DOCUMENT REGISTRATION SYSTEM, COMPUTER-READABLE STORAGE MEDIUM AND DOCUMENT INFORMATION CREATION METHOD - A document information creation device including a memory and a creation unit. The memory associates and stores confidential terms and attributes, and stores replacement candidate terms for replacing the confidential terms in association with confidential terms that have pre-specified attributes. The creation unit creates replacement document information by applying at least one of a first replacement, which replaces a confidential term that has a pre-specified attribute with one of the replacement candidate terms, and a second replacement, which replaces a confidential term that has an attribute other than the pre-specified attributes with a term generated from selected characters. | 12-30-2010 |
20110088375 | EXHAUST PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE - Disclosed is an exhaust purification device for an internal combustion engine provided with a venturi-shaped mixing chamber ( | 04-21-2011 |