About 147 results
https://drivepatents.com/patents/1393650 · 20 May 2026
[Problem] Provided are an aftertreatment device capable of purifying exhaust gas with a compact configuration and an engine including the aftertreatment device. [0002] [Solution] An aftertreatment device includes: a DPF case; an SCR case; an exhaust connec...
https://drivepatents.com/patents/1386548 · 18 Mar 2026
The invention concerns an exhaust gas treatment device (100) for an internal combustion engine (1), an internal combustion engine comprising such an exhaust gas treatment device, and a method for operating such an internal combustion engine. The exhaust ga...
https://drivepatents.com/patents/1394551 · 29 Oct 2025
Provided is an exhaust gas purification system that allows suppressing the emission of carbon monoxide (CO). An exhaust gas purification system includes a three-way catalyst and a particulate filter and a control device. The three-way catalyst and the part...
https://drivepatents.com/patents/1392810 · 1 Oct 2025
A stoichiometric injection volume, which is an amount of fuel to each cylinder(45A to 45D) that is a theoretical air-fuel ratio with respect to an intake air volume into an internal combustion engine (10), is calculated. An allowable amount of hydrocarbons...
https://drivepatents.com/patents/940733 · 13 Jul 2016
The present invention discloses an exhaust gas purification system for an internal combustion engine, which is provided with: a selective reduction type catalyst arranged in an exhaust passage of the internal combustion engine; a low pressure EGR mechanism...
https://drivepatents.com/patents/941641 · 15 Jun 2016
A control device for an internal combustion engine is provided. The electronic control unit (80) is configured to control exhaust gas recirculation devices (13, 14, 15) as EGR amount-decreasing processing when an ammonia slip occurrence condition with rega...
https://drivepatents.com/patents/943448 · 11 May 2016
An exhaust gas purification system of an internal combustion engine according to the present invention includes: processing means for executing at least one of a process of increasing an air-fuel ratio of an air-fuel mixture burned in the internal combusti...
https://drivepatents.com/patents/956151 · 4 Nov 2015
An object of the present invention is to suppress a reduction in a NO X purification ratio accompanying filter regeneration processing in an exhaust gas purification system for an internal combustion engine that includes a filter carrying an SCR catalyst. ...
https://drivepatents.com/patents/948519 · 7 Oct 2015
Provided is a natural gas engine that is equipped with an exhaust gas introduction mechanism that introduces exhaust gas (G) into a cylinder during an intake stroke, and in which the amount of diesel fuel (f) injected into a cylinder is set to a diesel fue...
https://drivepatents.com/patents/957384 · 23 Sep 2015
The concentration of an additive agent supplied to a catalyst is made more uniform. Provision is made for a variable capacity type turbocharger (50) arranged in an exhaust passage (3), a catalyst (5) arranged at the downstream side of the variable capacity...