{ Chexun Wang reported ] align = quot; centerquot; gt; 
current “scrap Square” Czech dismantling the vehicle body structure and comprising way X95 engine two parts, part of the body structure has been released (click through), describes the contents of the dismantling way in accordance with the users concerned, split into six modules, 9 details, interpretation from the perspective of the car. This article, we highlight disassembled engine parts.
There Jie way X95 1.5T and 1.6T two engines, this version of the dismantling of the engine 1.6T. This engine is relatively good book data, the maximum power of 145 kW and maximum torque of 290 Nm, performance data were higher than Peugeot, Hyundai same displacement engine.
In what way of introduction?
ldquo; systemic rdquo;, ldquo; characteristic type rdquo; and ldquo; water type rdquo; author is common dismantling the engine by way of introduction. The system is in accordance with the type two institutions, introduces five systems for professionals; the characteristics of the engine type is in accordance with the technical characteristics of a single introduction, already know for engine groups; water type is introduced in accordance with the dismantling order for novice users. In order to take care of the engine do not quite understand user groups, or the use of the ldquo; water type rdquo; way of introduction, which is more intuitive ways, from eleven full dismantling the engine, spare parts to the final stage.
Peripheral component dismantling
before dismantling the engine body, first removing the other components connected thereto, which comprises The turbocharger, water pump, an intake manifold, generator, air conditioning compressor, the oil filter, and the belt tensioner pulley damper pulley member and the like. In these parts of them, we need to focus on the two turbochargers and pumps, as they evolved more clever.
Turbine more comfortable, More intelligent, more sensitive among the
1.6T ldquo; Trdquo; that is turbocharged, it has the advantage without much introduction, low fuel consumption and squeeze out more power and torque so many people obsessed , this technology is currently the mainstream configuration, technical stability and strong. When I visit the show every year, like to go Parts Fair, because the sophistication of the components determine the future direction of the vehicle. BorgWarner is focused on providing solutions for automotive power company, is recognized as the top auto parts supplier industry. Many models use BorgWarner turbo kit, the Czech Republic, the dismantling of the way 1.6T engine is no exception. Turbocharged Although many years ago, but it also continues to progress and evolve. Before turbo large diameter, a large impeller resistance, but not smart enough to control, resulting in intervention of the turbine rotational speed is too high (about 2500-3000 rpm start a turbine engine). Direct driving experience that is, light throttle feel the speed, throttle big sudden acceleration, ride comfort is poor, and can not do acting freely.
With the popularity of small-displacement engine, and consumer demand for increasingly high smoothness, a turbine diameter (below yellow area) gradually becomes smaller, and as the lifting process, the impeller (FIG inside the small blades) are increasingly lighter, easier to blow. The benefits of such change is that a low engine speed (1200-1500 rpm) can make the turbine into operation, and accelerate the advance of comfort is also improved. In actual driving, unless oil floor hard acceleration, it would be difficult to detect ldquo; sudden acceleration rdquo; sense of pushing back.
Why Millia control more sensitive?
has been in the turbine is not pressurized state, ldquo; boost during acceleration, and the more sensitive response to the pressure relief is not possible acceleration rdquo ;, this is an ideal state. The turbocharger pressure output is relatively high, that is, to a smaller flow area of the turbine housing, while bringing more power booster to the vehicle, but too high pressure on the load of the engine threat, will cause mechanical damage. The pressure is not too high the turbocharger. The waste-gate structure to solve this questionTitle, which is equivalent to a three-way design, when (such as when shifting, braking) during driving to close the throttle, the throttle valve closed. When the pressure exceeds a predetermined value, the discharge pressure of the actuator from the top diaphragm valve, the bypass valve opens immediately driven, so a portion of the exhaust gas is not directly into the atmosphere through the turbocharger, the turbine inlet flow is reduced, then the pressure is reduced, turbocharger speed will fall. Conversely when the pressure dropped below a predetermined value, i.e., the bypass valve closed at this time to continue pressurization. This structure can increase the boost pressure and simultaneously play the role of protection of the engine.
over a period of relatively complex text description, simply means that, when the bypass valve is closed supercharging boost required, upon release of the throttle bypass valve is open, pressure discouraged . However, the conventional bypass control valve is a vacuum switch unit controls, as the height of the control and electrification, has evolved control bypass valve (if the red portion) is electrically controlled. By comparison of FIG down, it can be seen, the difference between the traditional mechanical vacuum control and electrically controlled. Electronically controlled direct driving experience is more intelligent, more sensitive. It can quickly understand the driver’s intention.
Why increase the pump clutch?
pump is responsible for circulating the engine coolant center of power, the working principle and similar fish submersible pumps. Rotation of the pump wheel (the position of FIG red) driven by circulating coolant, the coolant loop to remove heat within the engine, the engine water pump wheel is rotated by a drive belt. The traditional pumps the direct connection, as long as the engine is started, cranking to start the pump work, the lower the water temperature is small cycles, the water temperature is switched to a cycle. However, the traditional cycle structure still can not meet the needs of arctic regions, how can the water temperature up faster? How to let the engine warm up faster in the Arctic region it?
The answer is that the clutch means coupled to the pump, can be understood as a switching device. When the engine temperature is very low, the engine water pump drive belt running round, although the pump wheel rotates, but the pump impeller and pump from the core part of the state, like a clutch manual transmission car, the engine rotation but the car does not go, because the clutch separate power off open. At this point in the engine cycle is not antifreeze, the heat generated by the engine to work quickly to antifreeze warm, letIdeal for quick access to engine operating temperature. After the water temperature, clutch engagement, antifreeze cycle begins. Seemingly simple clutch design, can significantly shorten the winter warm-up time.
High Pressure Injection
Automotive fuel injection system is very similar to the shower head, the shower by water pressure, through water, head tube and then flows out of the shower head holes. Like pressure water pressure pump fuel injection system, the pressure pump to the fuel injection pressure is responsible for the general line. Usually the high pressure injection pressures of up to about models 200bar, so the metal line are used. This engine is further injector nozzle holes 6, with the high-pressure fuel injection, fuel can be better atomized. Traditional low pressure oil before the main porous, small aperture injector design, but because of the oil are higher, too small nozzle aperture is not the most suitable.
removing the valve cover (the black engine uppermost lid) able to see a valve mechanism (below). Earlier and engine technologies, the intake and exhaust time is not changed, it is difficult completely fixed manner to both the engine power output at low speed and high speed. Over time, the variable valve timing was born, although it has to adjust the valve time, can achieve fuel economy results, but still can not be continuously changed, and complex construction, use and maintenance costs are high. When the bicontinuous intake and exhaust variable valve timing, can simultaneously adjust intake and exhaust, to solve the problem of small low-speed torque, while the power output at high speed will be more excellent. This is also the main engine technology.
and the valve assembly is relatively complex mechanism one relationship, not confused. So we do not continue to break, at the camshaft (two crossbar) further pressing roller rocker, against the hydraulic pressure, air lock folder, valve spring, valve seals, camshaft rotation control valve is opened and closed.
I like roller rocker design (blue), since the rocker arm is a roller bearing rotatable cam (green) during rotation, Before rolling bearing has been in a state, less friction, and can reduce the physical wear and tear. Once we disassembled 400,000 kilometers of a joint venture vehicle engine, the cam wear almost negligible. And another fixed top hat design, wear and tear will be more obvious.
Next, we will remove the engine front cover, a timing chain can leak out the side of the intake and exhaust VVT actuator, and a fixed track chain and the like. We often say that the engine belts and chains, timing chain is in this position. Traditional belt noise is relatively low, but there is life, about 7-8 ten thousand kilometers need to be replaced. Chain belongs to maintenance-free. In fact, timing chain has gone through several technology updates. The earliest appearance like a bicycle chain structure, and noisy, the inertia of play, after a long time will be stretched, and even some brands timing chain also need maintenance.
Current timing chain polydentate basically silent chain (timing chain) a short (oil pump chain) can be seen from the detail view of a long, it more teeth, is no longer a cylindrical structure of the bicycle. Silent chain and gear contact is better, but after the operation less noise.
The engine oil sump (bottom) after removed, it can be seen that the oil pump (green) and the oil baffle – splash guard (blue). Oil baffle also called splash plate, which is used to prevent sump oil splashes, bumps the car is moving vibration, etc., try to make the oil obediently below alone. Also worth saying is that the way the Czech Republic X95 oil pump also increased wisdom.
can be determined from the electric plug, the oil pump is not Czech way X95 traditional single flow mode, instead of using the adjustable flow multistage design. Conventional oil pump as long as the engine oil pump starts pressurization starting work, the flow rate determined by the pressure level of the rotational speed of the crankshaft, the engine oil circulation is not fixed, but will also have resistance when the working oil pump, which consumes engine power output, according to working conditions regulate how much oil circulation, is the smarter solution.
how this engine is less a structure?
then split the engine, the cylinder head can win whole. Careful observation, found this engine seems less a manifold (bottom left chart). Where the exhaust manifold in the end go? In fact, it is not less, but to do the integration process. It is also optimized for rapid increases in water temperature do. Traditional engine exhaust manifold connected to the engine exhaust, the whole engine, which member is the second highest temperature, while the vehicle has just started in winter, heat is finally accumulated, but was overall emissions. The integrated exhaust manifold can make better use of exhaust gas heat to warm water, let antifreeze faster heat up, let the engine warm up. User point of return is extremely cold weather, the engine more quickly into the working temperature, the car can blow warm air faster.
The other half of the split is the child of the cylinder block, the cylinder piston assembly is a front body, a back surface of the crank assembly. Since the engine is still relatively new, it is relatively smooth cylinder wall. In order to allow sufficient cycle gasoline combustion piston surface is uneven, and the author split-off of more than a dozen different engines, each piston face is different. This requires accurate calculation cycle gasoline combustion state molecular design.
Summary: hundreds of engine parts do their job, I can interpret and explain to each part, but also the content It will become futile. Standing science, intuitive, fun principle can understand, from the author ldquo; water type rdquo; an angle of the order of dismantling the engine Czech way X95 introduced. Simply put, this engine X95 Express way, efficiency is relatively high, 1.6T can have a maximum power of 145 kW and maximum torque of 290 Nm performance data like this, really good. In addition, from the dismantling of view, this engine adds a lot ldquo; smart rdquo; intelligent design, so that the original becomes uncontrollable controllable, but also in the rapidly warming the engine also under the foot. If you have any questions X95 Express way and questions, you can give us a message, we will collect everyone’s problem, follow the relevant content to answer.
