6-StrokeTeam 14

Team 14

Tim Opperwall, John Mantel, Andrew DeJong, Marc Eberlein, Jim VanLeeuwen

OutlineProblemDesignsIssuesFeasibilityResourcesAnalysisQuestions

Problem4-Stroke engines are inefficient

Implement a 2nd power cycleUse less fuel while maintaining powerWater injection systemElectrically Controlled Engine

6-Stroke Engine

1. Intake of air + fuel2. Compression 3. Combustion

4. Re-compression 5. Water Injection

6. Exhaust

Design ATwo considered design alternatives

Camshaft ModificationMechanically controlledExtend crankcase to allow roomManufacture camshaft

Design BElectrically Controlled Engine

Remove cam controlled valvesReplace with solenoid actuated valves

Added capability between 4+6 strokes

Head redesign

IssuesInjection System

C programmingSpace RequirementsWater in Fuel

InjectorEconomics

Engine TestingPressureTemperature

Emissions testingOrsat failureGas

chromatography Chemistry

Department

Dynamometer testingFastbikes U.S.A.

Engine ModificationJohn Farris-GVSU

FeasibilityIt has been done beforeEngine Control Unit (ECU) is highly

adjustableTeam experience with engines and

machines

ResourcesEngr 315-Control Systems

Arduino BoardThermocouple amplifier

Machine ShopsVortec ToolingFastbikes USAHighlight Industries

John Farris-GVSU dynamometer testing

Engineering AnalysisControl System Design

Built a working temperature control system

Thermodynamic Calculations

0 90 180 270 360 450 540 630 7200

0.05

0.1

0.15

0.2

0.25

0.3

Current Valve Timing

Degrees After TDC

Valv

e L

ift

(in)

Reverse Engineered Cam ShaftDetermined timing and displacement of

valves

Intake Exhaust

Questions