H Series Marine Engine

H Series Marine Engine
H Series Marine Engine
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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