About 28 results
https://drivepatents.com/patents/993459 · 30 Jan 2013
An oxygen concentration sensor input device (1) includes a sensor input circuit (4) that can freely supplies a flow-out current to an oxygen concentration sensor (2) that detects an oxygen concentration in exhaust gas of an internal combustion engine. The ...
https://drivepatents.com/patents/1002833 · 2 May 2012
During high-load operation of an engine, fuel for initial slow-burning combustion and premixed combustion is injected into a combustion chamber by continuous fuel injection, then fuel injection is paused, and fuel for diffusion combustion is injected after...
https://drivepatents.com/patents/1006849 · 21 Dec 2011
An EGR control apparatus for an internal combustion engine, which is capable of properly controlling an inert gas amount of two types of EGR gas supplied to cylinders of the engine via two paths different from each other, thereby making it possible to ensu...
https://drivepatents.com/patents/1009726 · 31 Aug 2011
The method involves supplying a cylinder group (2) of a combustion engine (1) with fresh gas. Flood-crossed exhaust gas recirculation is implemented, in which exhaust gas return lines (21, 22) are guided back to fresh gas lines i.e. loading gas lines (8a, ...
https://drivepatents.com/patents/1011359 · 29 Jun 2011
The present invention provides for a system for controlling NOx emissions based on the calculation of an error given by the difference between a first measured value obtained from a NOx sensor (7) and a second one estimated from a NOx estimation. Said sens...
https://drivepatents.com/patents/1069372 · 8 Mar 2006
The method involves determining desired torque corresponding to request of a driver, by a torque determining unit (68). Desired indicated mean pressure is determined from the torque to establish parameters to control fluid admission in a combustion chamber...
https://drivepatents.com/patents/1071103 · 4 Jan 2006
An exhaust gas recirculation (EGR) control method and unit for an internal combustion engine includes an EGR passage (9) configured to recirculate a portion of exhaust gas from an exhaust system (8) to an intake system (5). An EGR valve (10), disposed in t...
https://drivepatents.com/patents/1073338 · 12 Oct 2005
The present invention provides an engine exhaust gas purification device comprising a filter B provided in an exhaust passage (10) of an engine (1) for trapping particulate matter contained in the exhaust gas, a catalyst A for regenerating the filter B by ...
https://drivepatents.com/patents/1074331 · 7 Sep 2005
An ECU (28) varies a period during which an intake valve (15) and an exhaust valve (16) are both simultaneously open by setting a target overlap angle OVP to be equal to a limit overlap angle OVL until the coolant temperature becomes higher than a referenc...
https://drivepatents.com/patents/1078115 · 4 May 2005
The present invention relates to an arrangement and a method for recirculation of a exhaust gases of a combustion engine (1). The combustion engine (1) is connected to an EGR system which has a return line (18) for recirculating part of the exhaust gases f...