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6N21AW

This document summarizes specifications for a marine propulsion diesel engine. It includes: 1) Details on engine type, cylinders, bore, stroke, mean effective pressure, and piston speed. 2) Power ratings for different engine models from 662-956 kW at 800-850 rpm. 3) Dimensions and weights for each engine model coupled with standard marine gear options. 4) Reduction gear ratios for the marine gear options of 1.84-3.32.

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Ajit Prabhakaran
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466 views1 page

6N21AW

This document summarizes specifications for a marine propulsion diesel engine. It includes: 1) Details on engine type, cylinders, bore, stroke, mean effective pressure, and piston speed. 2) Power ratings for different engine models from 662-956 kW at 800-850 rpm. 3) Dimensions and weights for each engine model coupled with standard marine gear options. 4) Reduction gear ratios for the marine gear options of 1.84-3.32.

Uploaded by

Ajit Prabhakaran
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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6N21AW Notes

| Power | 662~956kW

Main Data
■ Type : 4-stroke, Diesel ■ No. of Cylinders : In-line 6 ■ Cylinder Bore : 210 mm
■ Piston Stroke : 290 mm ■ Mean Effective Pressure : 1.65 - 2.24 MPa
■ Piston Speed : 7.73 / 8.22 m/s

Rated Power
Engine Model 6N21A-DW 6N21A-UW 6N21A-SW 6N21A-EW
Continuous Rated Power 662 736 883 956
kW (PS) (900) (1000) (1200) (1300)
Rated Engine Speed min-1 800 850
Engine Dry Weight kg 8000
Marine propulsion diesel engine [ Bore:165 -330mm ]

Standard Marine Gear


Propeller Type for F.P.P.
Marine Gear Model Offset Y-850 YX-1000
Co-Axial YC-850 YX-1000C
Reduction Gear Ratio Offset 1.84, 2.07, 2.35, 2.68 2.03, 2.36, 2.78, 3.32
(Ahead)
Co-Axial 1.84, 2.07, 2.35, 2.68 2.03, 2.36, 2.78, 3.32
Marine Gear kg Offset 2050 2400
Dry Weight
Co-Axial 2150 2565

Dimensions [ mm ] / Weights [ kg ]
Engine Marine Total Dry Weight
Model Gear with Marine Gear
A A1 A2 A3 B C D E F G
6N21A-DW Y-850 3920 2776 2733 1158 1420 2081 601 814 359 1802 10128
(662kW)
YC-850 4051 2776 2733 1289 1420 2081 601 455 - 1802 10228
6N21A-UW YX-1000 4053 2776 2733 1199 1420 2081 601 885 435 1802 10478
(736kW)
YX-1000C 4086 2776 2733 1232 1420 2081 601 450 - 1802 10643
6N21A-SW
(883kW) YX-1000 4059 2776 2733 1205 1420 2081 601 885 435 1802 10494
6N21A-EW
(956kW) YX-1000C 4092 2776 2733 1238 1420 2081 601 450 - 1802 10659

A1 B

F
D
E

A3 A2
G : Minimum Height for Removing Piston

18 The engine dry weight and outline may differ depending upon the specifications and attached accessories. 19

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