Inventor
SHAFER SCOTT F
US60 patents
⚠️ This page may combine multiple inventors who share the name “SHAFER SCOTT F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CATERPILLAR INC
45 patentsUS6715693B1Apr 6, 2004
Thin film coating for fuel injector components
CATERPILLAR INC65 citations95
US5515829AMay 14, 1996
Variable-displacement actuating fluid pump for a HEUI fuel system
CATERPILLAR INC87 citations95
US5084606AJan 28, 1992
Encapsulated heating filament for glow plug
CATERPILLAR INC61 citations94
US6973921B2Dec 13, 2005
Fuel pumping system and method
CATERPILLAR INC18 citations93
US6655602B2Dec 2, 2003
Fuel injector having a hydraulically actuated control valve and hydraulic system using same
CATERPILLAR INC25 citations93
US5832954ANov 10, 1998
Check valve assembly for inhibiting Helmholtz resonance
CATERPILLAR INC22 citations93
US4721081AJan 26, 1988
Flame incubating and propagating apparatus for a fuel combustion system
CATERPILLAR INC102 citations93
US6951204B2Oct 4, 2005
Hydraulic fuel injection system with independently operable direct control needle valve
CATERPILLAR INC27 citations92
US6769635B2Aug 3, 2004
Mixed mode fuel injector with individually moveable needle valve members
CATERPILLAR INC94 citations92
US6173913B1Jan 16, 2001
Ceramic check for a fuel injector
CATERPILLAR INC95 citations92
US5651345AJul 29, 1997
Direct operated check HEUI injector
CATERPILLAR INC42 citations92
US5421359AJun 6, 1995
Engine valve seating velocity hydraulic snubber
CATERPILLAR INC34 citations92
US6978760B2Dec 27, 2005
Mixed mode fuel injector and injection system
CATERPILLAR INC25 citations90
US5075536ADec 24, 1991
Heating element assembly for glow plug
CATERPILLAR INC33 citations90
US5084607AJan 28, 1992
Interference connection between a heating element and body of a glow plug
CATERPILLAR INC34 citations87
US7819107B2Oct 26, 2010
Pumping element for a fluid pump and method
CATERPILLAR INC15 citations84
US6769405B2Aug 3, 2004
Engine with high efficiency hydraulic system having variable timing valve actuation
CATERPILLAR INC14 citations84
US6354270B1Mar 12, 2002
Hydraulically actuated fuel injector including a pilot operated spool valve assembly and hydraulic system using same
CATERPILLAR INC17 citations84
US7331329B2Feb 19, 2008
Fuel injector with directly controlled highly efficient nozzle assembly and fuel system using same
CATERPILLAR INC13 citations83
US7021557B2Apr 4, 2006
Thin film coatings for fuel injector components
CATERPILLAR INC12 citations83
US7517200B2Apr 14, 2009
Variable discharge fuel pump
CATERPILLAR INC15 citations81
US5606940AMar 4, 1997
Engine valve seating velocity hydraulic snubber
CATERPILLAR INC19 citations81
US7451741B1Nov 18, 2008
High-pressure pump
CATERPILLAR INC10 citations80
US7444989B2Nov 4, 2008
Opposed pumping load high pressure common rail fuel pump
CATERPILLAR INC10 citations76
US7150268B2Dec 19, 2006
Fuel pumping system and method
CATERPILLAR INC9 citations74
US5560825AOct 1, 1996
Edge filter for a high pressure hydraulic system
CATERPILLAR INC17 citations74
US10519877B2Dec 31, 2019
Mitigation of intermittent cylinder misfire on dual fuel engines
CATERPILLAR INC3 citations73
US6749129B2Jun 15, 2004
Directly controlled fuel injector with sealing against fluid mixing
CATERPILLAR INC8 citations73
US9957940B2May 1, 2018
Fluid conditioning module
CATERPILLAR INC4 citations72
US9909468B2Mar 6, 2018
Fluid conditioning system with recirculation loop and method for operating same
CATERPILLAR INC4 citations71
US9797342B2Oct 24, 2017
Port injection system for gaseous fuels
CATERPILLAR INC3 citations71
US6886762B2May 3, 2005
Nozzle insert for dual mode fuel injector
CATERPILLAR INC10 citations71
US5873527AFeb 23, 1999
Fuel injector with regulated plunger motion
CATERPILLAR INC8 citations71
US6766792B2Jul 27, 2004
Engine component actuation module
CATERPILLAR INC11 citations69
US10029193B2Jul 24, 2018
Dual loop fuel filtration system with controller
CATERPILLAR INC2 citations64
US8006715B2Aug 30, 2011
Valve with thin-film coating
CATERPILLAR INC6 citations63
US7066141B2Jun 27, 2006
Linear control valve for controlling a fuel injector and engine compression release brake actuator and engine using same
CATERPILLAR INC4 citations63
US9447740B2Sep 20, 2016
Engine system having hydraulically actuated gas injector
CATERPILLAR INC2 citations62
US7370635B2May 13, 2008
System and method for resolving electrical leads
CATERPILLAR INC5 citations62
US6007305ADec 28, 1999
Internal combustion engine with integral crankshaft driven pump
CATERPILLAR INC5 citations62
US8002206B2Aug 23, 2011
Avoidance of spark damage on valve members
CATERPILLAR INC3 citations61
US6955114B2Oct 18, 2005
Three way valve and electro-hydraulic actuator using same
CATERPILLAR INC5 citations61
US10208727B2Feb 19, 2019
Fluid conditioning module
CATERPILLAR INC1 citations60
US7077381B2Jul 18, 2006
Desensitizing armature air gap to component distortion in a fuel injector
CATERPILLAR INC4 citations60
US10830194B2Nov 10, 2020
Common rail fuel system having pump-accumulator injectors
CATERPILLAR INC1 citations58
SHAFER SCOTT F
4 patentsUS8291889B2Oct 23, 2012
Pressure control in low static leak fuel system
SHAFER SCOTT F86 citations93
US8287256B2Oct 16, 2012
Valve assembly
SHAFER SCOTT F33 citations92
US9440169B2Sep 13, 2016
Fuel filtration system, filter exchange module therefor, and method of replacing fuel filters
SHAFER SCOTT F5 citations64
USRE44082EMar 19, 2013
Fuel injector having dual mode capabilities and engine using same
SHAFER SCOTT F3 citations58
IBRAHIM DANIEL R
1 patentShowing the top 50 of 60 patents by PatentIndex Score.