Inventor
SCZOMAK DAVID P
US26 patents
⚠️ This page may combine multiple inventors who share the name “SCZOMAK DAVID P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GEN MOTORS CORP
8 patentsUS4750675AJun 14, 1988
Damped opening poppet covered orifice fuel injection nozzle
GEN MOTORS CORP33 citations92
US5377651AJan 3, 1995
Closed-loop control of a diesel engine
GEN MOTORS CORP30 citations91
US5150694ASep 29, 1992
Diesel engine closed loop air/fuel ratio control
GEN MOTORS CORP31 citations91
US4909444AMar 20, 1990
Poppet covered orifice fuel injection nozzle
GEN MOTORS CORP22 citations82
US5012785AMay 7, 1991
Fuel injection delivery valve with reverse flow venting
GEN MOTORS CORP21 citations80
US5127584AJul 7, 1992
Fuel injection nozzle
GEN MOTORS CORP19 citations73
US4905908AMar 6, 1990
Poppet covered orifice fuel injection nozzle
GEN MOTORS CORP18 citations73
US4693424ASep 15, 1987
Poppet covered orifice fuel injection nozzle
GEN MOTORS CORP19 citations73
GM GLOBAL TECH OPERATIONS LLC
7 patentsUS9957911B2May 1, 2018
Dedicated exhaust gas recirculation control systems and methods
GM GLOBAL TECH OPERATIONS LLC5 citations72
US9695772B2Jul 4, 2017
System and method for adjusting fuel injection parameters during transient events to reduce particulate emissions
GM GLOBAL TECH OPERATIONS LLC2 citations72
US10519883B2Dec 31, 2019
Catalyst temperature maintenance systems and methods
GM GLOBAL TECH OPERATIONS LLC3 citations71
US10718258B2Jul 21, 2020
Spark-ignited direct-injection engine combustion systems
GM GLOBAL TECH OPERATIONS LLC4 citations69
US10077727B2Sep 18, 2018
Engine control systems and methods for nitrogen oxide reduction
GM GLOBAL TECH OPERATIONS LLC1 citations50
US9629189B2Apr 18, 2017
System and method for enabling a user to adjust the operation of a powertrain in a vehicle, to adjust the appearance of a user interface device in the vehicle, and/or to adjust vehicle noise
GM GLOBAL TECH OPERATIONS LLC0 citations50
US9915221B2Mar 13, 2018
System and method for engine combustion
GM GLOBAL TECH OPERATIONS LLC0 citations39
GM GLOBAL TECH OPERATIONS INC
6 patentsUS7628142B2Dec 8, 2009
Remotely mounted high-pressure fuel pump assembly
GM GLOBAL TECH OPERATIONS INC8 citations83
US7792629B2Sep 7, 2010
High pressure pump actuation in a vehicle
GM GLOBAL TECH OPERATIONS INC6 citations62
US7467511B2Dec 23, 2008
Emission control strategy for lean idle
GM GLOBAL TECH OPERATIONS INC2 citations62
US7322339B1Jan 29, 2008
Apparent torque reserve at idle for direct injected engines
GM GLOBAL TECH OPERATIONS INC4 citations62
US7080630B1Jul 25, 2006
Method for calculating cylinder charge during starting
GM GLOBAL TECH OPERATIONS INC0 citations52
US7779810B2Aug 24, 2010
Idle stability improvement for direct injected engines
GM GLOBAL TECH OPERATIONS INC0 citations39