Inventor · disambiguated record
Kevin P. Duffy
Also filed as: DUFFY KEVIN · DUFFY KEVIN P · DUFFY KEVIN PATRICK
31 granted patents·19 pending applications·750 citations·filing 2000–2010
98Inventor score
Top patents by PatentIndex Score
50 records- 0198US6651618B1Air and fuel supply system for combustion engineCATERPILLAR INC·Filed 2003·Granted Nov 25, 2003·106 cites·17 claims
- 0298US6467452B1Method and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engineCATERPILLAR INC·Filed 2000·Granted Oct 22, 2002·102 cites·54 claims
- 0394US7201121B2Combustion engine including fluidically-driven engine valve actuatorCATERPILLAR INC·Filed 2004·Granted Apr 10, 2007·46 cites·58 claims
- 0492US7469181B2High load operation in a homogeneous charge compression ignition engineCATERPILLAR INC·Filed 2007·Granted Dec 23, 2008·27 cites·20 claims
- 0591US7252054B2Combustion engine including cam phase-shiftingCATERPILLAR INC·Filed 2004·Granted Aug 7, 2007·34 cites·49 claims
- 0691US7198024B2Low emissions compression ignited engine technologyCATERPILLAR INC·Filed 2006·Granted Apr 3, 2007·16 cites·5 claims
- 0791US6843231B1Cylinder to cylinder balancing using intake valve actuationCATERPILLAR INC·Filed 2003·Granted Jan 18, 2005·43 cites·20 claims
- 0890US7377250B1System and method for balancing an engine during cylinder cutoutCATERPILLAR INC·Filed 2006·Granted May 27, 2008·25 cites·16 claims
- 0990US6470849B1Separate injector main timing maps for use with and without pilotCATERPILLAR INC·Filed 2001·Granted Oct 29, 2002·42 cites·17 claims
- 1089US7422000B2Method of transitioning between operating modes in an internal combustion engineCATERPILLAR INC·Filed 2005·Granted Sep 9, 2008·17 cites·21 claims
- 1189US6390082B1Method and apparatus for controlling the current level of a fuel injector signal during sudden accelerationCATERPILLAR INC·Filed 2000·Granted May 21, 2002·39 cites·23 claims
- 1287US6691671B2Method and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engineCATERPILLAR INC·Filed 2002·Granted Feb 17, 2004·24 cites·22 claims
- 1385US7131402B2Method for controlling exhaust emissions from direct injection homogeneous charge compression ignition enginesEXXONMOBIL RES & ENG CO·Filed 2005·Granted Nov 7, 2006·12 cites·20 claims
- 1484US7380540B1Dynamic control of a homogeneous charge compression ignition engineCATERPILLAR INC·Filed 2007·Granted Jun 3, 2008·20 cites·21 claims
- 1584US7178492B2Air and fuel supply system for combustion engineCATERPILLAR INC·Filed 2004·Granted Feb 20, 2007·33 cites·19 claims
- 1683US7377270B2Exhaust gas recirculation in a homogeneous charge compression ignition engineCATERPILLAR INC·Filed 2006·Granted May 27, 2008·12 cites·13 claims
- 1783US7191743B2Air and fuel supply system for a combustion engineCATERPILLAR INC·Filed 2004·Granted Mar 20, 2007·20 cites·55 claims
- 1882US7487663B2Method for selecting fuel to both optimize the operating range and minimize the exhaust emissions of HCCI enginesEXXONMOBIL RES & ENG CO·Filed 2006·Granted Feb 10, 2009·14 cites·36 claims
- 1982US7219649B2Engine system and method of operating same over multiple engine load rangesCATERPILLAR INC·Filed 2005·Granted May 22, 2007·11 cites·19 claims
- 2076USRE40144EMethod and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engineCATERPILLAR INC·Filed 2006·Granted Mar 11, 2008·6 cites·34 claims
- 2176US6491018B1Method and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engineCATERPILLAR INC·Filed 2001·Granted Dec 10, 2002·15 cites·21 claims
- 2275US6453874B1Apparatus and method for controlling fuel injection signals during engine acceleration and decelerationCATERPILLAR INC·Filed 2000·Granted Sep 24, 2002·20 cites·21 claims
- 2373US7377254B2Extending operating range of a homogeneous charge compression ignition engine via cylinder deactivationCATERPILLAR INC·Filed 2006·Granted May 27, 2008·8 cites·10 claims
- 2472US7201137B2Mixed mode control method and engine using sameCATERPILLAR INC·Filed 2005·Granted Apr 10, 2007·9 cites·20 claims
- 2565US8669402B2Fuel compositionsBESSONETTE PAUL W·Filed 2010·Granted Mar 11, 2014·1 cites·24 claims
- 2664US6845747B2Method of utilizing multiple fuel injections to reduce engine emissions at idleCATERPILLAR INC·Filed 2002·Granted Jan 25, 2005·14 cites·20 claims
- 2761US6606974B1Partitioning of a governor fuel output into three separate fuel quantities in a stable mannerCATERPILLAR INC·Filed 2000·Granted Aug 19, 2003·16 cites·20 claims
- 2858US6948482B2Engine cylinder temperature controlCATERPILLAR INC·Filed 2003·Granted Sep 27, 2005·9 cites·14 claims
- 2950US7210640B2Fuel injector spray alteration through a moveable tip sleeveCATERPILLAR INC·Filed 2001·Granted May 1, 2007·5 cites·17 claims
- 3047US2008081734A1Power systemCATERPILLAR INC·Filed 2006·Application pending·0 cites
- 3145US2005229900A1Combustion engine including exhaust purification with on-board ammonia productionCATERPILLAR INC·Filed 2004·Application pending·0 cites
- 3243US7661263B2Method of operating an internal combustion engineCATERPILLAR INC·Filed 2004·Granted Feb 16, 2010·4 cites·33 claims
- 3342US2007079805A1Air and fuel supply system for combustion engine operating at optimum engine speedWEBER JAMES R·Filed 2006·Application pending·0 cites
- 3442US2007089707A1Air and fuel supply system for combustion engineWEBER JAMES R·Filed 2006·Application pending·0 cites
- 3542US2007089416A1Combustion engine including engine valve actuation systemWEBER JAMES R·Filed 2006·Application pending·0 cites
- 3642US2008022686A1Powertrain and method including HCCI engineCATERPILLAR INC·Filed 2006·Application pending·0 cites
- 3740US2005241302A1Air and fuel supply system for combustion engine with particulate trapWEBER JAMES R·Filed 2004·Application pending·0 cites
- 3839US2008178843A1Combustion balancing in a homogeneous charge compression ignition engineDUFFY KEVIN P·Filed 2007·Application pending·0 cites
- 3938US2004112329A1Low emissions compression ignited engine technologyFiled 2003·Application pending·0 cites
- 4038US2007089706A1Air and fuel supply system for combustion engine operating in HCCI modeWEBER JAMES R·Filed 2006·Application pending·0 cites
- 4137US8069835B2Internal combustion engine and operating method thereforHERGART CARL-ANDERS·Filed 2007·Granted Dec 6, 2011·0 cites·15 claims
- 4236US2007068149A1Air and fuel supply system for combustion engine with particulate trapWEBER JAMES R·Filed 2006·Application pending·0 cites
- 4334US2005247284A1Air and fuel supply system for combustion engine operating at optimum engine speedWEBER JAMES R·Filed 2004·Application pending·0 cites
- 4434US2005247286A1Combustion engine including fluidically-controlled engine valve actuatorWEBER JAMES R·Filed 2004·Application pending·0 cites
- 4534US2005235953A1Combustion engine including engine valve actuation systemWEBER JAMES R·Filed 2004·Application pending·0 cites
- 4633US2003102389A1Method and apparatus to control a movable tip sleeveFiled 2001·Application pending·0 cites
- 4733US2005235950A1Air and fuel supply system for combustion engineWEBER JAMES R·Filed 2004·Application pending·0 cites
- 4833US2005235951A1Air and fuel supply system for combustion engine operating in HCCI modeWEBER JAMES R·Filed 2004·Application pending·0 cites
- 4932US2003102390A1Method and apparatus to control a moveable tip sleeve.Filed 2001·Application pending·0 cites
- 5031US2005241597A1Air and fuel supply system for a combustion engineWEBER JAMES R·Filed 2004·Application pending·0 cites
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