About 26 results
https://drivepatents.com/patents/1004546 · 7 Mar 2012
This invention relates to a method for protecting an exhaust gas recirculation (EGR) valve from fouling due to hydrocarbon condensation at low EGR cooler outlet exhaust temperatures. In modem internal combustion engines exhaust gas recirculation (EGR) valv...
https://drivepatents.com/patents/1009729 · 31 Aug 2011
An exhaust valve actuation system (30) for initiating a regeneration event at a diesel particulate filter (24) includes an engine control module (42) associated with an engine (14). A plurality of exhaust valves (32) correspond to a plurality of engine cyl...
https://drivepatents.com/patents/1013068 · 11 May 2011
While an engine (10, 10A, 10B, 10C, 10D, 10E) is operating, a control system (22) processes data for certain engine operating parameters to calculate a quantity of exhaust gas needed to satisfy an exhaust gas recirculation requirement. If a primary EGR con...
https://drivepatents.com/patents/1013293 · 4 May 2011
A method of cooling recirculated exhaust gas from an exhaust manifold (27) of an engine (16) upstream of an intake manifold (29), the method including passing the recirculated exhaust gas from the exhaust manifold through a heat exchanger (36), and convect...
https://drivepatents.com/patents/1013284 · 4 May 2011
A control system and method for engine braking for a includes an engine braking control and at least one exhaust valve actuator (610) responsive to demands from the braking control for causing the exhaust valve (618) to open. The braking control is configu...
https://drivepatents.com/patents/1014861 · 16 Mar 2011
An engine braking system includes a turbocharger having a turbine and a compressor. An exhaust manifold includes a first pipe for channeling a first portion of the engine exhaust and a second pipe for channeling a second portion of the engine exhaust. The ...
https://drivepatents.com/patents/1014924 · 16 Mar 2011
A system for driving an EGR stream for an engine includes an exhaust gas turbine, a main compressor and a supplemental EGR compressor. The turbine drives the main compressor to pressurize intake air and drives the supplemental EGR compressor to pressurize ...
https://drivepatents.com/patents/1014919 · 16 Mar 2011
An intake manifold (16) of an internal combustion engine (10) is charged to superatmospheric pressure by operating a first compressor (44) to compress fresh air diluted by exhaust gas into the intake manifold while operating a second compressor (24C) to co...
https://drivepatents.com/patents/1015112 · 9 Mar 2011
A method for manufacturing an engine includes the steps of: casting a side skirt having first and second opposing sidewalls and casting a transverse wall of the cast material connecting the sidewalls. The transverse wall will form a bulkhead and a main bea...
https://drivepatents.com/patents/1015229 · 2 Mar 2011
A method for controlling intake manifold oxygen for an engine having a fresh air inlet and an exhaust gas recirculation (EGR) circuit includes the steps of: establishing an ideal excess oxygen ratio for combustion in the engine; calculating a total mass fl...