Inventor

ROZARIO FREDERICK J

US26 patents

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

ROZARIO FREDERICK J

GM GLOBAL TECH OPERATIONS INC

Valve train with overload features

Fast active fuel management reactivation

Impulse charging control to extend displacement on demand range

Cylinder head with integral tuned exhaust manifold

Extending variable displacement operation through spark knock control

Cylinder deactivation apparatus

Hydraulic lash adjuster

Windage tray

Twin cam phaser for dual independent cam phasing

Fuel pressure boost method and apparatus

Concentric camshaft with varying wall geometry and method of assembly

Powder metal mold casting for three dimensional parts

Rocker assembly with adjustable swivel foot

GEN MOTORS CORP

Cylinder deactivation apparatus

Catalytic converter early light off using cylinder deactivation

Hybrid metal-composite valve lifter guide

Cylinder deactivation apparatus with vapor purge

Single cam three-valve engine overhead valve train

Valve train and method for reducing oil flow to deactivated engine valves

Oil pressure control system and method for engines with hydraulic cylinder deactivation

Centrifugal water pump

ROZARIO FREDERICK J

Method of making titanium-based automotive engine valves

Hydraulic control system for engine cam phasing

WAKADE SHEKHAR G

Method of making component shapes having non-round exterior shapes

Camshaft lobe and method of making same

CLEVER GLENN E

Concentric camshaft with varying wall geometry and method of assembly