Inventor

COLDREN DANA R

US76 patents

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

COLDREN DANA R

CATERPILLAR INC

Dual solenoids on a single circuit and fuel injector using same

Two stage intensifier

Single fluid injector with rate shaping capability

Method of reducing noise in a mechanically actuated fuel injection system and engine using same

Single pole solenoid assembly and fuel injector using same

Fuel injector utilizing flat-seat poppet valves

Cryogenic fluid pump

Fuel injector with directly controlled dual concentric check and engine using same

Fuel injector utilizing a multiple current level solenoid

Control valve having a solenoid with a permanent magnet for a fuel injector

Control valve having a top mounted single pole solenoid for a fuel injector

Internally wetted cartridge control valve for a fuel injector

Fuel injector control system and method

Auxiliary systems for an engine having two electrical actuators on a single circuit

Outwardly opening nozzle valve for a fuel injector

Fuel injector utilizing a biarmature solenoid

Dual fuel common rail transient pressure control and engine using same

Dual fuel injector and fuel system

End of injection rate shaping

Debris robust fuel injector with co-axial control valve members and fuel system using same

Electronic pressure relief in a mechanically actuated fuel injector

Parasitic load control system for exhaust temperature control

Mechanically actuated, electronically controlled fuel injection system

Multi-fuel injector with fuel mixing

Valve with self-centering, self-sealing seat component

Multi-fuel injector and method

In-cylinder dynamic gas blending fuel injector and dual fuel engine

Compact valve assembly and fuel injector using same

Fuel injector employing center fuel flow and pressure-assisted check closing

Electronic fuel injector with internal single-pole solenoid and center flow post

Dual-stage cryogenic pump

Fuel system having serially arranged in-tank pumps

Fuel injector with auxiliary valve

Cartridge control valve with top mounted solenoid and flat valve seat for a fuel injector

High pressure metal to metal sealing land in a control valve for a fuel injector

Multi-function fuel injector valve in dual fuel system and fuel system operating method

Multi-fuel injection system and injector

Reciprocating pushrod assembly and cryogenic pump

Electronic unit injector with pressure assisted needle control

Pressure-intensifying hydraulically-actuated electronically-controlled fuel injection system with individual mechanical unit pumps

Electromagnetic control valve

COLDREN DANA R

Dual check fuel injector with single actuator

Single actuator fuel injector for dual fuels

Limp home capable dual fuel engine and machine using same

System and method for cooling fuel injectors

Dual check fuel injector and fuel system using same

(unassigned)

Modular control valve for a fuel injector having magnetic isolation features

GRANT MARION B

Seal arrangement for a fuel injector needle valve

WESTPORT POWER INC

Piston arrangement

LEWIS STEPHEN R

Cavitation erosion reduction strategy for valve member and fuel injector utilizing same