Parviz Famouri, Professor

OSCILLATING LINEAR ENGINE AND ALTERNATOR

Sustainable Engineering: Accelerated

life testing, Technology to market, Cost

Analysis

COLLEGE OF

BUSINESS & ECONOMICS

WVU B&E: Techno-Economic

analysis, T2M plan

ANSYS: Engineering software

solutions – Mechanical, CFD,

EM, LS-DYNA and nCode

Design Life Standard

Wilson Works: metal

fabrication, CNC Water jet,

Mill and plasma

Team

Technology

Project objective: Development of 1 KWe electric generator

based on linear, free piston engine that drives a permanent

magnet linear electric generator.

Technology (cont’d)

Description of the technology under development: The

IC engine is a two-stroke, spark ignited system, with port

scavenging, resonant cylinder recharging, and managed

exhaust gas recirculation (EGR).

The linear motion electric generator (alternator) is of a

permanent-magnet brushless tubular.

Technical Progress

– The α-prototype is completed

and operational.

– Motoring the linear alternator

• 820 gram moving mass

• 70-93 Hz resonance frequency

• Displacement <2.7 cm

• Engine assembly installed

Coil

– Complete alternator design.

Stator

Translator

Combustion Rig Introduction

Design Space

• 1-1.5 kW

• 20-30 mm stroke

• 30-40mm bore

CY290S

• 30-36 mm bore

• 28-30 mm stroke

• CR 13-18:1 and lower

Technical Progress (cont’d)

– Lubrication pump

bench tested.

Technical Progress (cont’d)

– Position sensor

implemented.

– Control & drive

systems

Lessons Learned

– Identify critical component suppliers early and build

relationship

– Have a good

team that can

work effectively

together

– We are collaborating with Dr. Qiu (formerly at Temple

University now at WVU.

– Celebrate

milestone

achievements

– Plan – plan – plan ahead

Next Steps

– Preliminary combustion test on α-prototype

– Extensive operation, data collection and analysis of the α-

prototype and energy audit

– Operate and testing the b-prototype

– Complete design of the b-prototype

– Have the b-prototype ready for testing

– Optimize and fine tune the b-prototype

Thank you