九九视频免费精品视频,国产操逼视频 http://nl4.com.cn/en/ Thu, 21 Sep 2023 14:39:23 +0000 en-US hourly 1 http://nl4.com.cn/wp-content/uploads/2022/06/cropped-favicon-32x32.png Heavy Duty - UFI Filters China - 歐菲索菲瑪集團(tuán) http://nl4.com.cn/en/ 32 32 The importance of air filters for heavy vehicles signs not to ignore http://nl4.com.cn/en/blog/uncategorized/the-importance-of-air-filters-for-heavy-vehicles-signs-not-to-ignore/ Thu, 07 Sep 2023 08:45:53 +0000 http://nl4.com.cn/?p=12485 Lack of acceleration and black smoke from the exhaust are symptoms of combustion problems. Therefore, these are the first warning

Read more

The post The importance of air filters for heavy vehicles signs not to ignore first appeared on UFI Filters China - 歐菲索菲瑪集團(tuán).

]]>
Lack of acceleration and black smoke from the exhaust are symptoms of combustion problems. Therefore, these are the first warning signs which indicate the need to perform maintenance on the engine air filter.

The working environment for trucks is, indeed, rather harsh – both for those used for logistics, which do high mileages, and for those working in the construction or earth-moving sector, which operate in very dusty areas. The air filter gets dirty more quickly, necessitating the use of sensors to measure the differential pressure between the air entering and leaving the filter to determine the level of clogging. Some trucks are equipped with a warning light on the dashboard which indicates when the air filter is clogged. Some trucks, on the other hand, are equipped with a mechanical filter clogging indicator in the intake system (optical pop-up). When the mechanical indicator or warning light comes on, the vehicle may not yet be exhibiting obvious issues, but if the problem is ignored it could lead to poor acceleration and black smoke from the exhaust, with consequent poor fuel economy.

For this reason, the air filter is essential for a long service life of the engine and to guarantee optimum power. The air filter indeed retains dust, debris, sand, pollen and insects, which could obstruct correct combustion.

What are the symptoms of a clogged air filter?

Reduced power, lower acceleration, difficulty in driving correctly during sharp acceleration or with heavy loads, excessive noise, risk of engine stalls due to lack of air supply, foul-smelling exhaust fumes, right through to dangerous overheating of the engine itself. All this translates into an evident increase in fuel consumption, as the clogging of the filter causes a reduction in power, with the tendency for the driver to accelerate harder.

Failure to change the air filter for long periods can cause premature wear of the engine. For this reason, it is important to perform maintenance as recommended by the vehicle manufacturer, and in any case at no more than 25,000 km, and it is essential to use filters of equivalent quality to the original equipment, such as those from the UFI Filters catalogue, manufactured using the exclusive FormulaUFI materials. UFI filters are produced in partnership with the engineering teams of the main original equipment brands, in accordance with fluid dynamic studies and tests.

What are the benefits offered by UFI Filters’ engine air filters?

– Constant distribution of air flow inside the complete module
– Elimination of water droplets, increasing the lifespan and effectiveness of the filter itself, thanks to:

  • Hydrophobic treatments applied to the materials
  • Centrifugal force produced by the air circulating inside the module.

– Filtration of the smallest particles, which remain trapped in the pre-filter and in the filter media.
– Complete filtration systems with built-in soundproofing systems.
– Filter media developed and manufactured internally according to two specific formulations:

  1. Cell is a material made of cellulose fibres mixed with synthetic fibres to maximize filter duration and limit pressure drops.
  2. Extreme: a 100% synthetic filtration medium with additives that guarantee filter impermeability and increases the service life of the filtering element.

–? Minimal flammability risk: class F1 fire-proof filters, to ensure greater safety.

The post The importance of air filters for heavy vehicles signs not to ignore first appeared on UFI Filters China - 歐菲索菲瑪集團(tuán).

]]>
Cutting-edge oil filtration by UFI Filters to one of the most popular truck engines http://nl4.com.cn/en/blog/news-en/cutting-edge-oil-filtration-by-ufi-filters-to-one-of-the-most-popular-truck-engines/ Tue, 22 Nov 2022 09:08:31 +0000 http://nl4.com.cn/blog/2022/11/22/cutting-edge-oil-filtration-by-ufi-filters-to-one-of-the-most-popular-truck-engines/
  • Integration of several functions in the same complete filtration system, plus high modularity
  • Advanced lubrication circuit management
  • Hydrophobic filter cartridge for extended service life of up to 150,000 km

UFI Filters, a leading company in filtration and thermal management, is launching an?innovative oil module for one of the latest Daimler Truck AG’s engines for Mercedes-Benz Truck applications in the European Original Equipment market.

The main innovation offered by the UFI Filters module to the Heavy Duty?Engine Platform OM471, is the integration of several features which include a?two-stage thermostatic valve, a pressure control valve, a by-pass valve and a temperature sensor. These elements allow?advanced oil volume management?within the circuit, even for low-viscosity oils. The improved management of the lubrication circuit reduces friction inside the engine, thus offering excellent performance and a significant reduction in fuel consumption – contributing to lower pollutant emissions in the process.

A further technological feature offered by the complete UFI system is the?advanced thermal management?of the engine thanks to an UFI-developed two-stage thermostatic valve, which prevents temperature peaks. Depending on the oil temperature and the operating phase (steady state or warm-up), the two-stage thermostatic valve manages the oil volume within the lubrication circuit.

The?filter cartridge?produced with infrared welding (without any use of glue) is manufactured according to the exclusive hydrophobic?FormulaUFI.Cell?media. Due to the use of this particular media, the filter can maintain its characteristics even in the presence of water in the oil. This results in a high standard of filtration over time. Compared to screw-on filters, replacing the element alone allows a significant reduction in metal waste; the patented coupling also guarantees safer and cleaner maintenance operations for the operator. The improved management of the lubrication circuit and the characteristics of the filter material therefore offer high filter reliability, with extended service intervals of up to 150,000 km. Thanks to its structure, it has a high resistance on oil circuits subjected to pressures of up to 12 bar, such as those of heavy-duty vehicle engines.

UFI Filters’ engineers, in cooperation with those of the leading German manufacturer, have paid particular attention to the design of the individual components. The cartridge not only safeguards the engine components, but also guarantees best performance, helping to keep circuit pressure drop levels low, even under the harshest engine operating conditions.

UFI Filters’ complete system also features a?high degree of modularity, with the possibility of assembling different types of water pumps, both electrically and mechanically regulated. This enables the system to adapt to the needs of different types of applications, for different truck models.

Rinaldo Facchini, CEO of the UFI Filters Group?explains: “This product represents one of the best examples of the synergy between UFI Filters and Original Equipment manufacturers in designing and producing technological innovations in line with the needs of the most demanding engines, such as those destined for heavy-duty applications. We are very proud of this partnership, a very important business for our Group, on one of the highest volume engines in the European market.”

The post Cutting-edge oil filtration by UFI Filters to one of the most popular truck engines first appeared on UFI Filters China - 歐菲索菲瑪集團(tuán).

]]>
Hydrogen fuel cells – UFI Filters is on the job! http://nl4.com.cn/en/blog/news-en/hydrogen-fuel-cells-ufi-filters-is-on-the-job/ Thu, 15 Sep 2022 12:55:58 +0000 http://nl4.com.cn/blog/2022/09/15/%e6%b0%a2%e7%87%83%e6%96%99%e7%94%b5%e6%b1%a0-ufi-%e6%bb%a4%e6%b8%85%e5%99%a8%e5%8a%a9%e6%82%a8%e4%b8%80%e8%87%82%e4%b9%8b%e5%8a%9b%ef%bc%81/

When it comes to heavy vehicles, large tonnages and long distances, the use of hydrogen to power fuel cells appears to be one of the best solutions in order to drastically reduce air pollution. Hydrogen has also proved to be a valid solution for the decarbonisation of transport; indeed, a great deal of attention is devoted to this source of power both in the PNRR (the National Plan for Recovery and Resilience for Italy) and in the 2020 European energy plan. UFI Filters, a leading company in filtration solutions and in the production of heat exchangers for internal combustion, hybrid and electric vehicles, began analysing the possible future scenarios related to the various different forms of power back in 2017. As part of this, the company started to look into the new challenges connected to the use of hydrogen in fuel cells and the issues relating to filtration. Studies focused particularly on the air filter fuel cell cathode, an element that plays a strategic and fundamental role in purifying the air fed into the system. This filtered air operates as a combustive agent within the cell, with the oxygen present reacting with hydrogen through an electrochemical process that is capable of producing electricity.

?

THE CONTEXT

Filtering the air has never been so important

Before arriving at the compressor and then being delivered to the cell, the air fed into the system must be efficiently filtered, not only to remove particulate matter, but also to get rid of harmful gases such as SO?X, NO?X, H?2?S, CO, O?3?and NH?3?, along with VOCs (Volatile Organic Compounds), such as benzene and toluene. These gases, which are harmful to the fuel cell, are generally anthropogenic compounds that are derived from human activities (products of traditional combustion and those derived from oil); the air concentration of these varies in accordance with the geographical context.

Air filtration in fuel cells plays an even more important role than it does in traditional endothermic engines with regard to engine air filtration. Why? A number of studies conducted over the years have demonstrated that even extremely low quantities of gaseous particles (we are not just talking about PPM — parts per million, but even PPB — parts per billion) can dramatically reduce the performance and life of a cell. This is due to several factors, including the contamination of the catalyst, which is decisive – this is what triggers the reaction necessary to convert hydrogen and oxygen into electrical energy and water. The catalyst, a fundamental component of the fuel cell, effectively consists of costly platinum (or other precious metals). The presence of impurities can compromise its performance and functionality with irreversible effects, and can lead to progressive deterioration over time that affects the life of the cell. In the air circuit, the compressor is also a key element; this part is very sensitive to solid air contaminants, which can compromise its performance.

 

But there’s air and air…

The cells use ambient air that supplies the oxygen necessary to trigger the electrochemical reaction with the hydrogen. But air, as we know, is not the same everywhere, and its characteristics depend on a host of factors such as temperature, altitude, local pollution, etc. As such, the quality of this air, and where it will be used in the vehicle, must therefore be taken into account when developing a cathode air filter, because an effective solution in one region will not necessarily work in another.

The UFI Filters solution

The cathode air filter developed by UFI Filters and designed for OE applications with fuel cells has a dual function (solid particulate filtration and absorption of gaseous contaminants) and features a double layer, with the two layers contained within a single box; the shape and positioning of this inside the vehicle varies in accordance with the requirements of the OEM. This configuration enables each layer of the air cathode filter to be specialised or customised in accordance with a given vehicle, the region in which it will be used and/or the distance to be travelled and the expected useful life of the filter, thus guaranteeing optimal performance.

The first layer?works as a physical barrier; i.e., it separates solid particles, and is similar in structure to that used in engine air filtration systems for internal combustion vehicles. It is made using synthetic media that is distinguished by the fact that it has a different matrix and thickness compared to traditional filters, providing different accumulation characteristics and low system load losses. It works to capture all types of dust, including extremely fine particles, as well as salt particles. Indeed, salt, which is used in winter to defrost roads and is present in coastal areas, is harmful to the fuel cell. The positioning of the first layer – upstream of the second layer – is strategic, as it serves to protect the activated carbon present in the second layer, which is very sensitive to the presence of particulates that limit its capacity to absorb gases.

The second layer, meanwhile, serves a chemical function; removing gaseous contaminants by adsorption. It is made from filtering media with a non-woven matrix (non-woven fabric), which blends various types of active carbon. Thanks to the experience of UFI Filters in the production of filter materials, the activated carbons used for this specific application are not those employed traditionally; rather, these have been modified via specific heat treatments and chemical reactions with inorganic salts. In this way, in addition to having different physical hole sizes (as a result of the surface treatment), the activated carbons acquire the ability to absorb the gases, coupling with these via chemical bonds of various kinds. Accordingly, UFI Filters can offer the customer a diverse range of options for the same filter for a given application; in this instance, the different activated carbon mixes are the element that varies, enabling the different regions where the vehicle will be sold to be taken into account.

The thing that sets UFI Filters apart in terms of the innovative cathode air filter solutions it offers is the company’s consolidated expertise in filtering media, which is researched and produced in-house. This knowledge lies both in the materials used for the filtering media and in the application of different geometries, as well as in the way the filters themselves are machined in order to improve the performance of the product. Pleating is an example of this: the performance offered by a pleated filter is closely linked to how the pleats themselves are created. At UFI Filters, a highly specialised department is dedicated to researching and finding the optimal parameters, which are then passed on to the various global plants of the company, to ensure that the same high levels of performance are achieved across the board.

And there’s more

For some applications, in addition to the two layers, UFI Filters also offers pre-separation elements for the preliminary treatment of air. In very dusty regions, for example, this can contain large quantities of solid particulate matter, which must be removed before it reaches the cathode air filter.

First functional prototypes

A number of functional UFI Filters prototypes, intended for global OEM applications in trucks, buses and light commercial vehicles, are already being tested in various regions of the world, and the materials for these are close to being finalised. Mass production is scheduled to begin in 2025-26.

Thanks to its expertise, its OE pedigree and its global industrial footprint, UFI Filters is ready for the future of sustainable mobility.

The post Hydrogen fuel cells – UFI Filters is on the job! first appeared on UFI Filters China - 歐菲索菲瑪集團(tuán).

]]>
日日麻批免费40分钟无码_18禁黄网站禁片免费观看_日韩精品一区二区三区免费视频观看_日韩免费无码一区二区视频
    <ol id="egbxa"><optgroup id="egbxa"></optgroup></ol>