Marine Engine Diagnostics

Know your engine.
Prevent Failures.

PYTHIA is based on processing of measured data. It delivers cylinder pressure monitoring, engine diagnosis, and fleet performance analytics for marine diesel engines — from a single portable device to a full ship-to-shore monitoring suite. An embedded simulator is also used to support the analysis.

600+ Vessels installed
35 Years of R&D
5 min Data cycle
🚢
18 vessels online
M/E Performance — Live Real-time
Engine Power
4.133 MW
FOC
20.83 t/day
Load Margin
17.4 %
Cylinder pressure — all cylinders Pmax avg 138.4 bar
Injection system No comment
Cylinder 3 — Pcomp Decreased
T/C efficiency 96.1 %
💡
Prop margin 6.2 rpm
Product lineup

A solution for all marine applications

Choose between portable periodic diagnosis systems or fully automated online monitoring suites — both built on the same proven PYTHIA Analysis Tool.

Portable systems — periodic diagnosis
PYTHIA-E
USB Utility Tool

For ME engines with installed pressure sensors. Exports and converts engine data to PYTHIA format for diagnosis with zero hardware installation.

ME engines Software only No installation
From
PYTHIA-PS
Portable System

Portable solution for periodic M/E and D/G measurement and diagnosis. Measurement from indicator valve. Complete analysis in less than 10 minutes.

All engines Portable M/E & D/G
From
PYTHIA-PS+
Portable + USB

Combined portable system and USB utility. Cylinder pressure can be either measured manually or exported from installed sensors.

Combined Flexible input
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Online systems — automated continuous monitoring
PYTHIA-P-Light
Automated Periodic

Installed server capturing cylinder pressure automatically from M/E installed sensors. Three measurements per day, transferred to office automatically.

Automated Server-based Office sync
From
PYTHIA-PM
Full Performance Suite

Complete engine and vessel monitoring. Provides navigational data, torque-meter, flowmeter data, fuel tank levels, D/G power and propulsion efficiency analytics.

Full suite Navigation Fleet KPIs CII / EEXI
From
How it works

Every solution, explained

All PYTHIA solutions share the same Pythia diagnostic tool — what differs is the cylinder pressure data acquisition methodology and the data transfer method to your office. Choose the workflow that fits your needs.

Portable — Software only

PYTHIA-E — USB Utility Tool

For ME (electronic) engines already equipped with cylinder pressure sensors by the engine maker. No hardware installation at all — just a USB stick and software.

Data acquisitionExport from installed sensors (E/R PC)
OperationManual, periodic
Measurement frequencyPeriodic — crew-initiated
Additional vessel dataNot included
HardwareLaptop & USB stick
Price from
Workflow
⚙️
Installed Sensors — E/R PC
Cylinder pressure data stored on engine maker computer
USB export
💾
USB stick
Data converted to PYTHIA format
Transfer to PYTHIA laptop
📊
PYTHIA software
Diagnosis & report generated (~1 min)
Email to office
🏢
Office database
Import via e-mail attachment double-click
✓ Automated processing of all cylinders · ✓ Generation of performance report · ✓ ~1 min process
Side-by-side comparison
Feature PYTHIA-E PYTHIA-PS PYTHIA-PS+ PYTHIA-P-Light PYTHIA-P PYTHIA-PM
Data source Installed Sensors (E/R PC) Pythia indicator valve sensor Both M/E installed sensors M/E + all vessel instruments
Operation Manual Manual Manual Automated Automated
Frequency Periodic Periodic Periodic 3 × / day Every 5 min
Vessel data (GPS, FOC…) ✓ Full
D/G diagnosis ✓ included
Applicable to ME engines only All engine types All engine types ME & X-type ME & X-type
Installation None None None Server + sensors Server + sensors + nav panel
Price from
Key benefits

Why your technical team will thank you

PYTHIA replaces conventional performance analysis with quantified, actionable engine intelligence — reducing cost, effort, and unplanned downtime.

Condition-based maintenance

Maintain based on actual component condition, not only operating hours. Avoid unnecessary replacements, detect real faults early, and evaluate repair work.

Accurate FOC measurement

DNV-GL type approved power and fuel consumption methodology. Cross-validate flowmeter and torque-meter readings automatically. New software generates results for SFOC reduction potential (total and per system).

CII & EEXI compliance

Data required for EEXI, CII calculations and EPL studies provided automatically. Support for Tier-II, Tier-III, DF and engines equipped with SCR (LP & HP) and EGR.

Targeted engine tuning

Optimise VIT, SOI, EVO settings to minimize SFOC. Proposed adjustments per cylinder and subsystem — no major spares required.

Reduced technical dept effort

Auto-generated PDF reports, automated office data import, and measurement server eliminate repetitive manual work for superintendents. New performance summary report created for submission to vessel.

Minimum data philosophy

PYTHIA derives maximum insight from the minimum number of sensors — keeping long-term maintenance low and reliability high in the marine environment. Diagnosis is based mainly on cylinder pressure measurement (entire cycle), not noon report data.

Credentials

35 years of field-proven research

Developed by Prof. D.T. Hountalas and his team, refined through decades of practical application across the world's leading shipping companies.

GL Type Approved methodology

Power and FOC estimation methodology validated and type approved by Germanischer Lloyd in collaboration with TESTO AG for on-board NOx verification.

Global shipyard & sea trial experience

Field testing at Hyundai, Mitsui, Namura, CMD China, SWS China. Trusted third-party evaluator at major shop tests and sea trials worldwide.

Tested and trusted by industry leaders

Software components provided to AVL, Caterpillar USA, Daimler-Benz (Mercedes-Benz), and Robert Bosch SA. Sensor technology partnership with Kistler AG.

Active R&D — always current

Continuous development for Tier-III, Dual Fuel, EGR, and SCR engines. Software updates twice yearly, included in support contract at no charge.

600+ Vessels worldwide
35 Years of R&D
<12h Support response
Support & services

You're never on your own

Full technical support, software updates, and expert performance analysis — available from day one.

Software & system support

Ticketing system with response under 12 hours. Remote access for commissioning, updates, and troubleshooting without travel. Raw measured data can be submitted to PYTHIA for analysis.

  • Software restore & bug resolution
  • Support for special diagnosis issues
  • Automatic vessel server updates
  • Weekly data availability inspection
  • Ship-to-shore communication monitoring
Performance analysis services

Monthly engine performance analysis by the PYTHIA expert team. On-board attendance available worldwide through local specialists.

  • Monthly M/E measurement analysis
  • Detailed monthly report with engine performance analysis and deviation from reference
  • Engine settings optimisation (VIT, SOI etc.)
  • Evaluation before & after dry-dock
Specialised services

Additional services available for Pythia and non-Pythia users. Shop test attendance, sea trial evaluation, alternative fuel testing, and more.

  • Shop test & sea trial evaluation
  • SCR, EGR & Scrubber assessment
  • Alternative & bio-fuel testing
  • On-board emission measurements
  • Existing portable device re-programming for use on vessels without Pythia system
Get started

Ready to see PYTHIA in action?

Request a demo or get in touch with our team. We'll identify the right solution for your fleet and engine type.

Or contact us directly at mare@maremarine.gr · +30 210 4284248