About 18 results
https://drivepatents.com/patents/943952 · 27 Apr 2016
An exhaust after treatment apparatus for an internal combustion engine capable of suppressing excess of fuel component efficiently when it is determined that the operating state is such that the active state of the exhaust after treatment device is not mai...
https://drivepatents.com/patents/953229 · 24 Feb 2016
Provided is an exhaust injection control method for an exhaust gas aftertreatment device that can perform optimal exhaust pipe injection in accordance with a catalyst temperature and a degree of catalyst deterioration when exhaust pipe injection is perform...
https://drivepatents.com/patents/948234 · 2 Dec 2015
An exhaust gas purifier for an internal combustion engine (10) capable of removing a deposit from an addition nozzle (32) without consuming excessive fuel is provided. The addition nozzle (32) included in the exhaust gas purifier adds fuel to exhaust gas i...
https://drivepatents.com/patents/955464 · 18 Nov 2015
An object of the invention is to prevent, in an internal combustion engine (1) equipped with a supercharger (8), excessive increase in the turbine expansion ratio resulting from a decrease in the atmospheric pressure, while reducing the decrease in the sup...
https://drivepatents.com/patents/959285 · 8 Jul 2015
A three-way catalyst (20) having an oxygen storage function and an exhaust purification catalyst (22) are arranged in the exhaust passage of an internal combustion engine. During medium-load operation of the engine the degree of lean of the air-fuel ratio ...
https://drivepatents.com/patents/984660 · 3 Jul 2013
An exhaust gas control system (10) includes a DOC (oxidation catalyst) (52) and a DPF (particulate filter) (53) in an exhaust passage. The exhaust gas control system executes feedback control over an amount of energy supplied to the DPF (post fuel injectio...
https://drivepatents.com/patents/990983 · 8 May 2013
An exhaust purification system of an internal combustion engine is provided with an exhaust purification catalyst which removes NO x and a post treatment device. The exhaust purification catalyst has the property of reducing NO x if making the concentratio...
https://drivepatents.com/patents/991473 · 24 Apr 2013
An object of this invention is to maintain favorable exhaust emissions while preventing clogging of a fuel addition valve. An engine 10 includes a fuel addition valve 34 that adds fuel to exhaust gas. The fuel addition valve 34 executes a fuel addition ope...
https://drivepatents.com/patents/991721 · 17 Apr 2013
Provided is an exhaust pipe injection control device capable of controlling an appropriate fuel injection amount regardless of engine rotation speed. The exhaust pipe injection control device includes: a target injection amount setting unit 172 which sets,...
https://drivepatents.com/patents/991640 · 17 Apr 2013
Provided is an exhaust pipe injection control device capable of optimally controlling an degree of EGR opening during DPF regeneration. The device comprises a regeneration-time opening control unit (173) which controls a degree of EGR opening of an EGR dev...