"> Hanshin 7LH28L

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Hanshin

7LH28L

The Hanshin 7LH28L is a compact medium‑speed 2‑stroke main engine delivering 2170 kW at 750 rpm, designed for coastal and feeder vessels where space is limited.

2170.0 kW

Power

Engine Specifications

7

Cylinders

280 mm

Bore

390 mm

Stroke

2,170 kW

MCR Power

750.0 rpm

MCR RPM

2-stroke

Stroke Type

Family: Hanshin Diesel EL · Tier: IMO Tier II · Fuel: HFO, MDO

Inspector Detail

▸

Designation decoded

7 für 7 Zylinder, LH für L-Type H-Variante, 28 für Bohrung 280 mm, L für Long-Stroke. Specs: Hub 390 mm. Hanshin EL-Serie — 7-Zylinder-Konfiguration.

Background

Der 7LH28L ist die 7-Zylinder-Variante des Hanshin 280-mm-Motors. 7 Zylinder sind ungewöhnlich bei Zweitaktern (typisch 5-6 oder 8) und bieten eine Zwischengröße für spezifische Leistungsanforderungen.

Calculated metrics

Stroke To Bore Ratio

1.39

Inspector checklist

Laufzeug & Tribologie

Zylinderlaufbuchse: 280 mm × 7
Kolbenringe: Hanshin
Kreuzkopf: Kompakt

Steuerung

Nockenwelle: 7-Zyl — ungewöhnliche Zylinderzahl, Zündfolge beachten
Kraftstoffpumpen × 7
Ventilspiel

Turbolader

Turbolader: 1×
Spülluft-Kühler

Logbook reference values

Parameter	Expected	Deviation means
Abgastemperatur nach Zylinder	330-400 °C bei 85% MCR	Spread >15 °C
Motordrehzahl	200-400 rpm	Last/Governor

Common Failure Modes

Düsen-Verstopfung

Symptoms: Ungleichmäßige Verbrennung

Causes: Kleine Düsen

Preventive: Filtration

Turbolader-Ausfall

Symptoms: Leistungsverlust

Causes: Lager/Verschmutzung

Preventive: Reinigung

Expert tips

💡 7 Zylinder: Ungewöhnliche Konfiguration — Zündfolge und Schwingungsverhalten anders als bei geraden Zylinderzahlen

Related components

Turbolader (1×) Nockenwelle Kraftstoffpumpen × 7

Classification & regulatory

IMO Tier II. Japanische Vorschriften.

Reference content for inspector orientation. Always verify against manufacturer's manual, latest service letters and class society requirements.

Other Cylinder Configurations 28

5 cyl · 1,500 kW

5 cyl · 1,550 kW

5 cyl · 2,600 kW

5 cyl · 3,500 kW

5 cyl · 1,100 kW

5 cyl · 1,400 kW

5 cyl · 1,850 kW

5 cyl · 2,750 kW

6 cyl · 2,640 kW

6 cyl · 3,720 kW

6 cyl · 4,200 kW

6 cyl · 5,220 kW

6 cyl · 6,180 kW

6 cyl · 1,800 kW

6 cyl · 1,860 kW

6 cyl · 3,120 kW

6 cyl · 4,200 kW

6 cyl · 1,320 kW

6 cyl · 1,680 kW

6 cyl · 2,220 kW

6 cyl · 3,300 kW

7 cyl · 2,100 kW

7 cyl · 3,640 kW

7 cyl · 4,900 kW

8 cyl · 2,400 kW

8 cyl · 2,480 kW

8 cyl · 4,160 kW

8 cyl · 5,600 kW

Components & Design

Component data being added…

Technical Data

unified from engine model True

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Equipment Model #38136 · ✓ still in production