Inventor

MARRIOTT CRAIG D

US34 patents

⚠️ This page may combine multiple inventors who share the name “MARRIOTT CRAIG D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MARRIOTT CRAIG D

GM GLOBAL TECH OPERATIONS INC

Induction tuning using multiple intake valve lift events

Systems and methods for detecting failed injection events

Valve actuator assembly having a center biased spool valve with detent feature

System and method for determining ethanol content in fuel

Reduced noise engine start-stop system using traditional crank device

Fuel pressure amplifier

Statically sealed high pressure fuel pump and method

Compact lash adjuster feed channel apparatus

Reduced torque variation for engines with active fuel management

Pre-heating fuel for cold start

Diagnostic system for valve actuation camshaft driven component compensation

Compact lash adjuster feed channel apparatus

Hydraulic control system for a switching valve train

MARRIOTT CRAIG D

System and method for circulating fuel through a direct injection pump of a bi-fuel engine

Camshaft having a tuned mass damper

System and method for increasing operating efficiency of a hybrid vehicle

Variable valve actuation control systems and methods

Bi-fuel engine including system and method for reducing component temperature

Air assist start stop methods and systems

Integrated hydraulic cooler and return rail in camless cylinder head

Hydraulic engine valve actuation system including independent feedback control

GEN MOTORS CORP

Piezoelectric differential cam phaser

Combustion-assisted engine start/stop operation with cylinder/valve deactivation

Valve lift sensor

Distributed accumulator for hydraulic camless valve actuation system

RAYL ALLEN B

System and method for detecting a fault in a pressure sensor that measures pressure in a hydraulic valve actuation system

CLEARY DAVID J

Method and apparatus for continuously variable differential phasing of engine valve operation

WISCONSIN ALUMNI RES FOUND

Internal combustion engine using premixed combustion of stratified charges

WESTPORT POWER INC

Fuel system protection in a multi-fuel system internal combustion engine

MOSCHEROSCH BEN W

Multi-fuel vehicle fuel control systems and methods

VINCENZI RICARDO

Cold start engine control systems and methods

BRENNAN DANIEL G

System and method for controlling hydraulic pressure in electro-hydraulic valve actuation systems

WILES MATTHEW A

System for detecting operating errors in a variable valve timing engine using pressure sensors

DOUGLAS SCOT A

System and method for increasing operating efficiency of a hybrid vehicle