Inventor

LIU Z GERALD

US47 patents

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

LIU Z GERALD

CUMMINS EMISSION SOLUTIONS INC

Systems and methods for mixing exhaust gases and reductant in an aftertreatment system

Mounting plate for mounting injectors and directing reductant flow in exhaust conduits

Systems and methods for mixing exhaust gases and reductant in an aftertreatment system

Systems and methods for mixing exhaust gases and reductant in an aftertreatment system

Systems and methods for mixing exhaust gases and reductant in an aftertreatment system

Method and apparatus to enhance fractional efficiency of diesel and gasoline particulate filters

Systems and methods for mixing exhaust gases and reductant in an aftertreatment system

Treated SCR catalysts with enhanced sulfur resistance

Method and apparatus to enhance fractional efficiency of diesel and gasoline particulate filters

Optical sensing of NOx and ammonia in aftertreatment systems

Systems and methods for controlling exhaust gas aftertreatment sensor systems

Systems and methods for controlling exhaust gas aftertreatment sensor systems

Systems and methods for controlling exhaust gas aftertreatment sensor systems

Remanufacturable sensing assemblies and methods of remanufacture

Mixers for use in aftertreatment systems

Converging liquid reductant injector nozzle in selective catalytic reduction systems

Exhaust gas aftertreatment system

Systems and methods for enhancing catalytic efficiency of SCR catalysts

FLEETGUARD INC

Low pressure injection and turbulent mixing in selective catalytic reduction system

Impactor for selective catalytic reduction system

High capacity direct flow filter with maintained channel width

Filter and forming system

Filter and forming system

Exhaust aftertreatment device, including chemical mixing and acoustic effects

Exhaust aftertreatment device with flow diffuser

Pre-form for exhaust aftertreatment control filter

Exhaust aftertreatment filter with particulate distribution pattern

Multi-stage diesel particulate collector system with combined processes of inertial impaction, virtual impaction, and filtration

Catalyst and filter combination

CUMMINS FILTRATION IP INC

High temperature nanofilter, system and method

Tuning particulate filter performance through selective plugging and use of multiple particulate filters to reduce emissions and improve thermal robustness

Reductant decomposition system

Source dilution sampling system for emissions analysis

Diesel fuel dosing module for regeneration of diesel particulate filters with continuous purging

NELSON IND INC

Additional flow filter

Open flow filter with safety element

Multi-element cylindrical filter with equalized flow

Direct flow filter

LIU Z GERALD

Reductant injection and decomposition system

Exhaust gas sensor module

Apparatus and method to control engine crankcase emissions

CUMMINS INC

Exhaust gas and reductant mixer for an aftertreatment system

Systems and methods for reducing secondary emissions from catalyst components

3M INNOVATIVE PROPERTIES CO

High temperature nanofilter, system and method

DAVIDSON DEBBIE

Reductant decomposition system

HARINATH ARVIND V

Catalytic devices for converting urea to ammonia

YEZERETS ALEKSEY

Systems and methods for reducing secondary emissions from catalyst components