Advantages and disadvantages of the italian vm engine:
The italian company vm has a long history of developing products that used to be equipped with many expensive models - alfaromeo, chrysler rovers, rover guards, jeep cherokee (the foreign model, no domestic vehicle ever installed, with several pieces of equipment in the cut-off at the border crossing, 2. 5 and 2. 5 t)。
Vm diesel engines were installed in 1973 and upgraded several times to be a very powerful engine manufacturer。
With an endless desire for vm, this year we were fortunate to help our friends repair a 2. 5-t vm machine that matched the turbine boost from ishikawa island in japan。
Vm 2. 5: type: r425dohc
Diversion: 2499 cc
Configuration format: in-line 4
Borexstrokecylinderx process:
Mark power / 4000 rpm 105 kw (143 cv)
Max peak torque
Direct injection
Compression ratio compression ratio: 17. 5:1
Air inducation: aerodynamics, voltage / cold
Balance shafts (optional):
Balancing axle (selection) in the shell
Block cylinder: cast iron
Cylinder head: air tank caps, whole, aluminium tank caps
Mission devices: emission units catalytic converters, cold egr
Emission levels: eu. 3 (e3 standard)
Injection systems: fueljet system
Valve train: gasgate agency double-top cam axis, 4 gas tank
Weight (net weight): 220 kg
Foreign-shaped reference dimensions: 540 x 645 x 682
Look at the twist and power, two-and-a-half 340nm, a smooth twist curve, a 105kw power, but it's perfect, not to mention 2. 8
Vm 2. 8: model: r428dohc
Diversion: 2766 cc
Configuration format: in-line 4
Borexstrokecylinder routing / 4000 rpm 115 kw (143 cv)
Max peak torque
Direct injection
Compression ratio compression ratio: 17. 5:1
Air inducation: aerodynamics, voltage / cold
Balance shafts (optional): balancing axle (selected) in the shell
Block cylinder: cast iron
Cylinder head: air tank caps, whole, aluminium tank caps
Mission devices: emission units catalytic converters, cold egr
Emission levels: eu. 3 (e3 standard)
Injection systems: fueljet system
Valve train: gasgate agency double-top cam axis, 4 gas tank
Weight (net weight): 220 kg
Foreign-shaped reference dimensions: 540 x 645 x 682
Note: the “parameters” described above by the owner of the building are the same as those of the vm that were produced by the delfoy engine company in ran, after our own domesticization。
Let's start with its advantages:
1 perfect power curve
2. Good fuel consumption
3. Advanced jet control systems (which have been changed from friend to non-power control)
4 and looks and reveals the power to do good work and to make people talk。
But there's no perfect machine
1. The electrical control system is too complex:
Almost all of the simple and reliable characteristics of diesel engines were lost (although electrical controls allowed engines to meet higher emission requirements and better power performance). But i firmly believe that for diesel, simple is the point. Many emc diesel engines now have many sensors and have lines as complex as petrol, and it is assumed that the probability of failure will increase significantly and that reliability will decrease. It also has some effect on motor overwater performance。
2. Engines are designed to be wet tatters:
While this facilitates the extension of engine life, it also extends the lifetime of components. But at the same time it has to be confronted with the serious problem of cave erosion (which is not improved with anti-freeze)。
3 the wet tank holsters are subject to the use of water-retarding rings (special material o-type rings in sealed waterways on the drums), which are more problematic than dry tatters. Especially when the engine's hot, it's basically enough to get all the water-blockers.
At the same time, after reaching the age of ageing, it is almost inevitable that all must be replaced. The vehicle must also be replaced after a certain period of time。
Otherwise, there will be a significant amount of anti-freezing fluid mixed with heavy oil. The most important thing is that it is not an easy task to replace the barrier. It is essentially equivalent to the workload of overhauling engines。
A whisper: there are more than 200 “barriers”, 16 on a four-cylinder machine, and a copper sealing ring at a price that is not available in the country。
4 most vm engines use mono-aluminium caps:
Those who do this kind of lid must know what i'm going to say. It's a broken nose between the vents, and it's not just a crack, it's a crack to the waterway. I don't have to say you know the consequences. There's antifreeze in the burning room. This crack is basically a little bit of each jar on the vm machine, and the difference is that it's leaking。
Most importantly, it is difficult to repair after a break, welding is followed by a re-fissling on the side of the welded interface, and the life of a dedicated glue (only a very expensive 3m adhesive adhesive) is a problem。
5. The domestic spare parts channel is almost zero。
Fortunately, however, many of the parts of this engine could be purchased through the excavator's channels, which is also unfortunate。
Taken together, the vm engine is a good machine, and the price of repair is a good price. Perhaps countries could lower their post-natal prices. However, there must be a significant decline in quality. This engine really makes you have to say "2b" while admiring the level of italian mechanical manufacturing。
"the internet discussion"
One, it's a very high-level post from the industry, with a very high degree of accuracy on diesel engines! The phenomenon of euphoria and the break between the air doors, all diesel engines will have it, but the situation is different! It's also one of the attributes of diesel engines, and everything has its two-faced nature, and it's not too much to worry about. We can't stop eating grub food for a long illness!
The old "x6 dragontone" was a vm made of the river bell
So now that x8 diesel is not on the market, it will only be resolved after it has been converted to imports, and costs will certainly rise. It can only be recalled that its domestic engine is too limited in terms of technology, that it does not possess core technology, and that it is not all-powerful, of course not to rule out that the italians have left their hands behind, and that they are taking money to deceive you。
3. Who knows about the italian vm engine? Compared to harvard 2. 5tci:
Response:
1 the italian vm engine is known and was negotiated between the wall and vm, but not concluded. Vm engines are better than the great wall's own engines. I've had contact。
2tdcivm engine, good stuff, quiet. I have in-house training
The 3 parameter vm is better than 2. 5tci, but the specific market should be less optimistic. I don't know if it's a vm, but it's pretty trashy。
I'll take that one. Now the vm engine is in a long, autonomous suv。
In fact, vm can do it (both two-capped cam axes, chain rolls, new-generation diesel engine structures), and i remember, in order to consider the cost, what kind of double-mass flying wheel was cancelled (but without that, that thing had too high a failure rate, and the diesel engine's twists could easily break the spring inside). Because vm is a group, we're a group, we've been busy lately, and the details are not clear
N350 is definitely a good car with a suv and a pick-up truck. Because the engine was changed by ford's engine, and we've got a bunch of people busy, and after so many long trials, the quality of the engine is absolutely guaranteed! The car is officially operational in october 2010
It's quiet, but it's not much worse than a gas engine; but the original look of more than 2,500 diesel engines shows -- it's loud, it's good, it's speed-up。
5. Users are told to rely on and save fuel, as is the case with those who choose to use vm motor vehicles. My x8 car, which used this engine for 76,000 kilometres over three years, gave me the feeling that it was power and fuel savings, with a long distance of 6 to 7 litres of oil, averaging 0. 52 yuan/km. There's just one thing i don't think is enough. It's hard to start on the plateau. In the future, manufacturers could make a difference, and confidence was in those who loved to travel。
Vm engines, italy
The italian company vm engine, a well-known european research and development and manufacturer of small diesel engines, has a strong lead in the field of international diesel engines, and is a diesel engine supporter for the light passenger and van products of transnational corporations such as mercedes, ford and others. At present, it is co-possessed by the italian fiat fiat and the united states gm。
Vm was founded in 1947 by two individuals, ugo martelli and claudio vancini, after which they applied for the first italian patent for diesel engines containing “middle cold, straight spray technology”. It laid the foundations of vm in the field of diesel engines。
Starting in the mid-1970s, vm developed a series of high-tech diesel engines with turbine boosters, which were in an absolute lead at the time and began to provide engine equipment to the world's leading automobile companies. The popular fist product tdi diesel engines were first purchased from an italian engine development agency, with some of the technology coming from vm。
Seventy-five per cent of vm's operations involve engine manufacturing and sales, and vm engines are well known for their dynamic integration with advanced technology in europe in the twenty-first century. Since 2001, large quantities have been placed on the european market and are now widely used in various light trucks, suvs, mpvs, ldvs and sedans - ford, chrysler, general, land rover, alfaromio, fiat, chia and modern - all users of vm engines. The diesel version of jeep wranggle horse herdsmen uses the vm2. 8 high-pressure co-orbit diesel engine。
The vm engine, which had entered china in previous years and is currently being used on the river bell wind suv, uses a boshi-jet-high-voltage co-orbit system, four gas doors designed for both cavity axes and liquid poles, and emission standards are met in countries iii and iv。
On 9 december 2009, the signing ceremony of the technical cooperation agreement between the chai-kai power and the italian company vm engine was held at the factory. According to the agreement, wood power will be introduced into the world-lead vm engine production technology of 10 machine-type multi-cylinders under vm. Not only has the wood successfully entered the small diesel engine area, but it also marks the completion of the full set of wood power from 3l to 32l engines。
