Yuchai YC4D Series Marine Engines

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Yuchai YC4D Series Marine Engines

· High performance combustion chamber and intake swirl contribute to lower fuel consumption

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

· High 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

· Good for medium size cargo ships and fishing vessels

YC4D TECHNICAL SPECIFICATIONS

Model	YC4108C	YC4108CA	YC4108ZC	YC4D75C
Configuration	Vertical in-line, 4-cylinder, 4-stroke, direct injection, water-cooled
Bore ×Stroke (mm)	108 ×115
Aspiration	Natural		Turbocharged & inter-cooled
Displacement (L)	4.21
Compression ration	17:01
Rated power/Speed (kW(hp)/r/min)	40(54)/1500	32(43.5)/1500	50(68)/1500	55(75)/1800
Fuel consumption g/(kW·h)	≤200		≤198
Oil consumption g/(kW·h)	≤0.8
Rotation	Counterclockwise ( facing flywheel )
Starting method	Electric
Dry weight (kg)	370		390
Engine dimension (L×W×H) (mm)	986 × 730 × 948		1311 × 746 × 962
Certificate	ZC, ZY, CCS

Q: What are the advantages of Audi's TFSI engine?: We look at the previous working principle on the turbocharged to know, that is due to the inertia of the impeller on the throttle suddenly slow response, that is, from your big step on the throttle to increase the horsepower to the impeller will be more air pressure

Q: BMW x3 sudden driving in the engine failure lights with what is the reason?: Under normal circumstances, the knock is divided into sensory detonation and no sense of knocking, in the absence of detonation circumstances, the engine computer will be adjusted according to the situation to adjust the engine control parameters, to avoid greater adverse effects, but

Q: The engine is out of order. What should I do?.: The so-called "piston knocking cylinder" abnormal sound, refers to the piston side tapping cylinder wall generated abnormal sound. Generally speaking, when the piston top produces the axial force direction, as the piston changes from the compression stroke to the power stroke, the piston knock out the cylinder. In other words, every time when the piston passes TDC moves downward, the piston will be forced to hit the wall, causing the piston knocking fault. The piston knocking the decisive factor is the clearance between the piston and cylinder wall, piston clearance is what we say normally (Figure 5). As for the specific effect of the clearance between the piston knock, the main show the following features: when the piston clearance is too large, prone to knock, the reason for this phenomenon, is decided by the material and working characteristics of the piston. Its intuitive performance is that when the engine is cold, the piston gap is large and the knocking is loud. But as the engine temperature increases, the piston clearance will become smaller and the knocking sound will be reduced accordingly.

Q: CFM international engine company profiles: In February 1972 to complete the design and carry out the trial, September 1974 formally CFM international company, engine named CFM56, the head of the two engines manufactured in the two companies have developed test stand test. Test of common 11 engines, of which 5 units for the flight test of.1979 in November in the United States Boeing 707-320 first flight, then total flight 130h. At the same time the French "clipper" flight table to complete the necessary tests in November 9th.1979 CFM56-2 engine for America and France's.CFM56 airworthiness certificate from 1971 the two companies signed a cooperation agreement to take the card, deduction of 1 and a half years stopped, took a total of 7 years, the development cost of $1 billion. Since the engine was selected in March 1979 modified MacDonald Douglas DC-8 aircraft, to 1986 a total of 110 aircraft modifications (each 4).

Q: What should I do when the car engine is overheated?: After the engine water temperature returns to normal, the engine is turned off.

Q: What are the power performance indicators of the engine?: The engine power performance indicators include: 1, effective torque: the torque that the engine outputs externally through the crankshaft or flywheel. 2. Effective power: the power output of an engine through a crankshaft or flywheel.

Q: What is the difference between the car's brake and the engine brake?: The engine brake is by the engine itself (by changing the low side and so on with the engine brake car in a form)

Q: How do the conventional submarines inhale and exhaust under water?: The water depth of 8 - 15 meters, the bridge in the submarine or submarine underwater air suction device - cylinder diesel engine combustion air supply. By the end of the bridge underwater exhaust exhaust. The two devices are unidirectional, preventing sea water from coming back

Q: What is engine drag braking?: Engine drag braking, that is, the use of the braking system to slow down the speed at the same time, gear stalls down to reduce the load on the braking system, in order to reduce the possibility of braking failure.. It can make the vehicle more safe and prolong the life of the brake system." This driving learning material on the record has been regarded as we strictly follow, not golden laws and precious rules, contrary to. This has led to the idea that a drag is a brake; a pull will certainly reduce the use of a car. Is that so? Whether the brake can be effectively used to brake and to improve the safety factor depends on whether the driver knows how to pull the gears. Either automatic or manual gear vehicle deceleration during driving, the driver only needs to press the brake pedal, the car will have deceleration under your control.

Q: What is the car engine displacement: In general, the general 1.6-2.0 engine has four cylinders, 3.0 or so there are six cylinders, 4.0 or so there are eight cylinders, the cylinder is very small,

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