About 44 results
https://drivepatents.com/patents/1076583 · 22 Jun 2005
A suction pipe (2) feeds intake air to individual combustion chambers (3). An exhaust pipe (4) carries exhaust gases away from the combustion chambers. An exhaust gas re-circulation pipe (EGRCP) (5) links to the suction pipe and the exhaust pipe. A tempera...
https://drivepatents.com/patents/1081904 · 1 Dec 2004
The engine has an exhaust feedback regulator unit (56) controlling an exhaust feedback valve (34) based on an intake pressure in an internal conduit and a set point signal representing a desired intake pressure. The desired pressure depends on an air mass ...
https://drivepatents.com/patents/1082640 · 10 Nov 2004
The invention relates to a diesel engine comprising a sensor that detects an engine temperature; and a combustion-temperature control device that adjusts a combustion temperature of the engine depending on engine speed, engine load and the engine temperatu...
https://drivepatents.com/patents/1086068 · 23 Jun 2004
The method involves adapting the cylinder mass flow characteristic to the known fresh air mass flow for different operating points of the internal combustion engine (1) and determining the exhaust gas feedback mass flow (dmAGR) depending on the fresh air m...
https://drivepatents.com/patents/1086358 · 16 Jun 2004
The exhaust gas recirculation rate is regulated in coarse steps to the desired value. After coarse regulation, a fine regulation is carried out to determine if the exhaust gas recirculation rate has achieved a predetermined accuracy. If this accuracy is no...
https://drivepatents.com/patents/1088919 · 17 Mar 2004
A process for controlling a combustion engine having an exhaust gas return valve (118) to control the amount of returned gas comprises determining a value for the control based on the pressure differential across the valve in the exhaust gas pipe (116), co...
https://drivepatents.com/patents/1099630 · 2 Jan 2003
A system (50) for controlling the temperature of recirculated exhaust gas supplied to an internal combustion engine (50). In one embodiment, the system (50) includes a heat exchanger (56) having the recirculated exhaust gas flowing therethrough and further...
https://drivepatents.com/patents/1102677 · 7 Aug 2002
An air-fuel ratio control system for an internal combustion engine (8) is comprised of an engine condition detecting unit (16, 17, 18, 19, 21, 31, 41) and a control unit (20). The control unit is arranged to calculate a target engine torque on the basis of...
https://drivepatents.com/patents/1108367 · 21 Nov 2001
A first combustion where the amount of the EGR gas supplied into the combustion chamber 5 is larger than the amount of EGR gas where the amount of production of soot peaks and almost no soot is produced and a second combustion where the amount of EGR gas s...
https://drivepatents.com/patents/1109015 · 24 Oct 2001
To provide a failure diagnosis apparatus for an exhaust gas recirculation system 2913 which is capable of eliminating the influence of various disturbance factors that vary the suction air pressure, diagnosing a failure of the exhaust gas recirculation sys...