P

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 patents
US6715693B1Apr 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 patents

IBRAHIM DANIEL R

1 patent

Showing the top 50 of 60 patents by PatentIndex Score.