Yuchai YC4F Series Marine Engines

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Yuchai YC4F Series Marine Engines

· World-class high speed engine for speed pursuer

· Yuchai sealing technology in piston ring and valve oil seal reduces the lube oil consumption

· High reliability, fuel efficiency and low maintenance cost

· Compact size facilitates installation, maintenance and repair

· Operator and nature friendly with low noise, rapid start ability and low emissions

· Major overhaul period is more than 10000 hours

YC4F TECHNICAL SPECIFICATIONS

Model	YC4F115C-31	YC4F100-C20	YC4F90L-C20
Configuration	Vertical in-line, 4-cylinder, 4-stroke, direct injection, water-cooled
Bore ×Stroke (mm)	92 ×100
Aspiration	Turbocharged & inter-cooled
Displacement (L)	2.66
Compression ration	16.3:1
Rated power/Speed (kW(hp)/r/min)	85/3100	73/2950	63/2800
Fuel consumption g/(kW·h)	≤195
Oil consumption g/(kW·h)	≤0.8
Rotation	Counterclockwise ( facing flywheel )
Starting method	Electric
Dry weight (kg)	420
Engine dimension (L×W×H) (mm)	873 × 617 × 738
Certificate	ZC, ZY, CCS

Q: Engine and motor and engine, what are the concepts?: Motor is motor translation, the Chinese meaning motor generally refers to the motor, such as the starting motor is the starting motor.

Q: Does the car use engine brakes to increase fuel consumption?: 2, the use of engine brake is to lift the accelerator pedal, but do not step off the clutch, the use of the engine compression stroke compression resistance, internal friction and intake and exhaust resistance to the drive wheel to form a braking effect.

Q: What does engine brake mean?: The so-called "engine braking" is the driving behavior of a term, it is generated by the engine running resistance to effectively control the speed, you have said "downshifting" and "loose throttle" two measures can be achieved by resistance to engine speed control purposes

Q: J-20 there is no vector engine?: If the sun 18, then these test items have to be delayed as now began to test first.

Q: What are the engine parts?: Brief, the main oil pump, cylinder, flywheel, flywheel shell, bolt, cylinder head and piston, cylinder liner, piston ring, connecting rod, connecting rod pin and sleeve, connecting rod, crankshaft, water, oil pump, crankshaft, oil pan, the timing gear chamber, inlet and outlet valve, small don't say with.

Q: How about the mechanical efficiency of the turbofan engine?: Of course, this is not absolute, and design-related, but there can be a concept, the current efficiency of the turbine engine is generally higher than the four-stroke gasoline engine.

Q: What is the four stroke engine?: The gasoline engine runs through a cycle of four processes: intake, compression, combustion, service, and exhaust. During this period, the piston moved four strokes reciprocating between the upper and lower dead centers. Accordingly, the crankshaft rotated for two weeks

Q: Why do diesel engines vibrate with noise?: We also know that in the gasoline engine, knock is fault phenomenon. To produce motion power and engine piston in the opposite direction is called detonation combustion of combustible gas, not only bad detonation engine damage, increased fuel consumption, and will have a lot of noise. In the EFI gasoline engine, with a knock sensor, through the critical point ECU ignition timing control for engine knock and knock out. And in the diesel engine, the fuel itself is by compression ignition, the gasoline engine and compression ignition detonation conditions when the same, so inevitably will produce a lot of noise.x0d in addition to the combustion of different causes more than noise. The other mechanism of diesel engine will produce more noise, such as the fuel pump of diesel engine. Unlike gasoline engine, the compression stroke when the gasoline engine is A mixture of oil and gas compression, while the diesel engine is a compression of pure air. Because, in order to make the diesel in cylinder combustion more fully, and will not cause unnecessary knock, the diesel engine is a piston in nearly reach the start vertex of the injection compression. You want to in such a high pressure environment, must choke a very large supply pressure to ensure the normal operation of the engine.

Q: What are the performance differences between the four engines of the L, V, W, and H?: The utility model has the advantages of stability, low cost, simple structure, good running balance, small volume, high stability, low speed torque characteristic, low fuel consumption, compact size and wide application. Disadvantages: when the amount of exhaust and the number of cylinders increase, the length of the engine will increase greatly.

Q: What is the engine of BJ486EQV4?: BJ486EQV4 is the Beijing auto Fukuda Europe 4 environmental standard gasoline engine. BJ486EQV4 series gasoline engine is with the British Lotus company to develop the Euro Ⅳ gasoline engine.

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