Diesel is more affordable than gasoline or petrol. It is thus obvious why large scale commercial operations rely on diesel engines. Whether it is the commercial vehicles plying on the streets catering to citywide commutes or long distance trucks catering to moving goods, diesel powered vehicles are on the rise and the growth would continue.
The Diesel fuel injector is an integral part of any diesel engine and it is a tad more complicated than petrol or gasoline powered engines. There are two types of diesel fuel injectors: throttle body injection and individual port type fuel injector. A typical diesel fuel injector has a filter, core spring, guide ring, seat spring, pole piece, seat, solenoid coil and solenoid body, stop, core and a core ring, spray tip housing, spray tip and director. Diesel fuel injectors can come in myriad shapes or forms but they would invariably contain these parts. The fuel flow in a diesel fuel injector is controlled by ECM which functions by raising a ball off the seat. The fuel then flows through the seat and onto the fixed director plate. This plate has several holes through which the fuel flows and gets sprayed at around ten to fifteen degree angles.
Diesel fuel injectors spray fuel directly into the intake manifold of a diesel engine, which is right in front of the intake valve. Every diesel fuel injector has a high micron filter, hypodermic holes and the fuel sprayed through the top inlet and the filter leads to the atomizing of the fuel at the bottom. Other than catering to the primary function, diesel also ensures that the fuel injector remains well lubricated so all its parts can work optimally. The fuel injector valve operates at an rpm of around 1800, thus controlling the fuel intake. An rpm of 1800 typically means that the valve would open and close about 140,000 times in an hour. The diesel fuel injector is crucial to the functioning of the engine. A malfunctioning fuel injector would render the engine un-operational and one would have to replace the injector or have it cleansed and repaired.
A diesel fuel injector works frantically as long as the engine is running. The valve opening and closing to dispense the right amount of fuel happens so fast that it cannot be measured in seconds. Usually, a valve opens and closes and the injector facilitates the fuel dispensing in less than 5 milliseconds.
At a time when we have failed to control the rise of temperature within the desired two degrees Celsius and the leaders of the world are congregating in Paris to chalk out the roadmap to tackle climate change, there comes a pleasant development from the stable of Federal-Mogul. The company has developed a piston ring technology called eWAVE that can reduce carbon emissions in marine operations and can also reduce operating costs.
Federal-Mogul Holdings Corporation’s power train division in Germany has been conducting sea trials testing its new eWAVE rings that can reduce the amount of oil and lubricants needed in two stroke diesel engines. The rings will also reduce the loss of unused and used fuel, thus reducing the operating costs and cutting down on carbon emissions.
This is the first ring of its kind that allows the oil to be evenly distributed at its bore. In effect, the piston is more efficient. Conventional designs of rings don’t allow for even distribution of oil at the bore, which compels operators to pump in more lubricants and oil to ensure that the bores get enough to overcome the friction and can facilitate the smooth functioning of the piston. This excess oil that is pumped into the pistons is a massive waste. Up to 40% of the total oil pumped into the pistons is actually lost. The oil just seeps through and this leads to marine pollution, excessive loss of oil and adds to the carbon footprint of marine operations.
The patented surface topography that the new eWAVE® rings feature can disperse oil around the bore in a homogeneous layer. Thus, it can protect against local oil film breakdown, it would improve the sealing of combustion gases, the regular wearing out will be greatly reduced and there would be temperature uniformity inside the liners.
The technology solves the longstanding problem in two stroke diesel engines of the pistons being unable to have oil distributed circumferentially at the bores. According to an official press release, the new rings can save 30% of the total oil being used today that is completely wasted. The rings have been tested for over eight thousand hours and they have reduced wear resistance by 20%, which is again a saving in operating costs. The technology is compatible with various kinds of engine strokes and can function at different operating speeds.
The Cummins ISX engine is specifically designed to be one of the strongest and most powerful engines. It can be used in a number of different settings and industries including mining. It is also designed for use in many heavy-duty trucks. In short, if you are looking for a powerful and robust engine that is designed for a variety of uses, the Cummins ISX engine is at the head of the class.
Changes to the Cummins ISX Engine Over the Years
The Cummins ISX engine has a long history. It was first manufactured back in 1998, but has been redesigned over the years. It was in 2010 that the Cummins ISX was built with a dual overhead cam design. The dual cams had different uses with one linked to the injector and the other the valve train. In 2013, even more changes were made as it was fitted with a diagnostics monitor. This monitor was designed to make the engine more fuel efficient. The efficiency of the engine was improved with this monitor and the amount of emissions could be tracked. Innovation has always been a part of the overall design of the Cummins ISX engine over the years and this has not changed as technology has continued to improve.
One of the most noticeable changes to the 2013 version of this engine was the cooling system. Efficiency of the engine has increased tremendously, but the size of the cooling system has been reduced dramatically. Even though the cooling system within the engine has reduced in size, the engine is still able to cool at optimal levels. There is now more open room within the engine that allows for the air to be cooled more efficiently and a large cooling system is no longer required. This change uses advanced technology and is one of the biggest differences on the newer models of the Cummins ISX engine.
With this new cooling system technology in place, it is possible for high amounts of fuel to be saved. This means that heavy duty trucks will have the ability to save over 2,000 gallons in fuel annually simply due to this minor change in the size of the cooling system within the Cummins ISX engine.