About 33 results
https://drivepatents.com/patents/1258370 · 2 Apr 2020
An exhaust gas purification device includes an exhaust gas discharge unit having an exhaust gas passage, and a plurality of smoke purifying units. Each smoke purifying unit includes a smoke purifying module disposed outside of the exhaust gas discharge uni...
https://drivepatents.com/patents/939028 · 17 Aug 2016
The present invention relates to an exhaust purification system and detects an amount of PM accumulated in a DPF with high precision. The exhaust purification system includes: a DOC (21) provided on an exhaust passage (12) of an engine (10); a DPF (22) pro...
https://drivepatents.com/patents/967520 · 12 Nov 2014
A method according to the present invention is for heating exhaust gas to be introduced into an exhaust-gas purifying device (26) from an internal combustion engine by supplying fuel into an exhaust passage (23a) from a fuel supply valve (27a) disposed ups...
https://drivepatents.com/patents/979611 · 15 Jan 2014
When urea aqueous solution is frozen (YES in S104), a process (S108 to S114) of decreasing an exhaust gas temperature in an exhaust passage (26) as compared to the exhaust gas temperature when urea aqueous solution is not frozen (NO in S104, S120, S122) is...
https://drivepatents.com/patents/987739 · 7 Aug 2013
An exhaust purification system of an internal combustion engine provided with an exhaust purification catalyst which reacts NO X and hydrocarbons. The exhaust purification catalyst includes an upstream side catalyst and a downstream side catalyst. The upst...
https://drivepatents.com/patents/990705 · 15 May 2013
A method for controlling an internal combustion engine (10) limits emission of undesirable compounds of nitrogen and oxygen and provides increased transient power, the method comprising: operating the engine at a first power output by providing a first air...
https://drivepatents.com/patents/985924 · 6 Mar 2013
It is an object of the present invention to reduce a loss of a working time caused by a point that it takes a long time to renew an exhaust gas purification device 50 by throttle devices 81, 82, in an exhaust gas purification system of a working machine 22...
https://drivepatents.com/patents/992698 · 27 Feb 2013
A control system of an internal combustion engine in which a catalyst device having oxidation ability is arranged in the exhaust system, is provided. When a temperature of the catalyst device is lower than a set temperature, the combustion temperature is m...
https://drivepatents.com/patents/996041 · 14 Nov 2012
The exhaust gas purification device has a connecting element (11) for mechanically coupling with an exhaust gas turbocharger (1) and a particulate filter (14). The exhaust gas turbocharger and particulate filter are fluidically connected to the connecting ...
https://drivepatents.com/patents/1002615 · 9 May 2012
Inner cases (4, 20, 31) are connected to outer cases (5, 21, 32) through joining flanges (25, 26, 40, 41) which protrude toward outer peripheries of the outer cases (5, 21, 32). A plurality of combinations each including filters (2, 3), the inner cases (4,...