H Series Marine Engine Manufacturer

H Series Marine Engine

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Description
The H series marine engine was jointly designed and developed by SEDC and UK Ricardo combining Chinese market demands and internationally proven technologies of advanced Ricardo engines. It is a world first-class power platform manufactured by adopting the GPDP development process and SAIC MOTOR manufacturing standards.

This series marine engine features a compact structure, strong power, low vibration noise, etc., whose technical indexes are all in the leading position in China. It is applied to small inland transportation boat, coastal fishing boat, high speed boat, passenger ship and other ships, as well as 50-150KW marine generator sets.

Outline dimensional drawing

SC4H95/SC4H115
L: 976mm W: 729mm H: 1028mm
SC4H160/SC4H180
L: 976mm W: 729mm H: 1055mm

Technical parameters

Model	Aspiration method	Continuous power/speed kW/r/min	Overload power/speed kW/r/min	Unlimited Navigation Areas Rated power/speed kW/r/min	Unlimited Navigation Areas Overload power/speed kW/r/min	Min.fuel consumption g/kW.h	Oil consumption g/kW.h	Weight kg	Notes
SC4H100CA	T	66/1500	72/1545	63/1500	69/1545	205	≤0.35	495	Main engine
SC4H110CA	T	73/1800	80/1854	70/1800	77/1854	205	≤0.35	495	Main engine
SC4H125CA2	TA	82/1500	91/1545	80/1500	88/1545	192	≤0.35	540	Main engine
SC4H140CA2	TA	93/1500	102/1545	90/1500	99/1545	192	≤0.35	540	Main engine
SC4H155CA2	TA	103/1500	113/1545	100/1500	110/1545	192	≤0.35	540	Main engine
SC4H170CA2	TA	113/1800	125/1854	110/1800	121/1854	192	≤0.35	540	Main engine
SC7H175CA2	TA	115/1500	127/1545	112/1500	123/1545	192	≤0.35	675	Main engine
SC7H195CA2	TA	129/1500	142/1545	125/1500	138/1545	192	≤0.35	675	Main engine
SC7H190CA2	TA	125/1800	137/1854	121/1800	133/1854	192	≤0.35	675	Main engine
SC7H220CA2	TA	144/1800	159/1854	140/1800	154/1854	192	≤0.35	675	Main engine
SC7H235CA2	TA	155/2100	170/2163	150/2100	166/2163	192	≤0.35	675	Main engine
SC7H250CA2	TA	167/2300	184/2369	162/2300	178/2369	192	≤0.35	675	Main engine
SC4H95CF2	T	62/1500	68/1500	60/1500	66/1500	205	≤0.35	495	Auxiliary engine
SC4H115CF2	T	78/1500	86/1500	75/1500	83/1500	205	≤0.35	495	Auxiliary engine
SC4H160CF2	TA	105/1500	116/1500	102/1500	112/1500	192	≤0.35	540	Auxiliary engine
SC4H180CF2	TA	120/1500	132/1500	116/1500	128/1500	192	≤0.35	540	Auxiliary engine
SC7H230CF2	TA	154/1500	170/1500	149/1500	164/1500	192	≤0.35	675	Auxiliary engine
SC7H250CF2	TA	168/1500	185/1500	163/1500	179/1500	192	≤0.35	675	Auxiliary engine

Bore × stroke (mm)	Displacement (L)	Type	Aspiration	Steady speed governing rate (%)	Idling (r/min)	Exhaust temperature (℃)	Compression ratio	Oil capacity (L)
SC4H SC7H 105×124	4.3 6.5	In-line, 4-valve In-line, 6-valve	T-Turbocharged TA-Turbocharged and intercooler	0%-5%	650	≤550	17.3:1/16:1 16:01:00	13.4 20.5

Note

The flywheel house and flywheel are optional of SAE1# and SAE14# or SAE1# and SAE14#.
There are single-layer and dual-layer high pressure oil pipes optional.

Features

With four-valve structure, centrally and vertically arranged fuel injector and new fuel mixing technology, this engine delivers high air intake efficiency, uniform atomization and good load transient response. Its working efficiency is improved by 12%.
The maximum torque is over l000N.m, and the torque reserve is as high as 36%, which is 20% higher than similar products.
The power and economy are both considered under common working conditions, and the minimum fuel consumption is 195g/kW.h.
A 180 BAR high combustion pressure design makes its environmental adaptability 7% higher than the similar products. Without auxiliary air intake heating device, the cold starting temperature is -15℃.
Frame type high strength alloy engine body, one-piece cylinder head and rear gear chamber result in small volume, light weight, high reliability and a noise of 3dB (A) lower than similar products.
By reference to SPS manufacturing standard of German Volkswagen, the average overhaul period is over 15000h, which is 50% longer than similar products.

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