In the automobile industry, the player who can save more fuel is already an edge above the others. The fuel economy is very critical, considering that the cost of fuel cost has been steadily rising. Other than just saving on fuel, there are several other potential benefits associated with engine friction reduction. These range from a smooth ride to a long lasting engine. In addition to these economic factors, there are a number of social-political considerations such as environmental impacts which puts into account the energy consumption and emissions.
This is the reason why pistons are now made of aluminum, unlike ages ago when the cast iron was the favorite. Aluminum is less dense, resulting in lower weight which in turn ensures that less force is used to turn the engine parts. In increased friction translates to more heat and also quickens the rate at which wear and tear take place. This all comes down to the low performance level and increase emission of undesirable gases into the atmosphere.
The pressure is thus on the engineers to reduce friction to the minimum possible level, and indeed, they are not disappointing as great strides have been made in this direction. Engineers give a lot of thought to every single component that goes into the combustion system. Technically, the less friction an engine has the increased horsepower per liter it gives translating to efficiency or fuel economy.
The need to come up with a fuel efficient combustion system has pushed the specialist in this industry to the corner. Currently, consideration goes into the low tech, off-the-rack parts such as the cylinder rings, the seals, and the oil pump among other parts which are now designed to the premium rate equipment.
One area that is under consideration is the use of smaller bearings. These are coated with lead, tin, copper or compound of the same as these are considered to reduce the heat emitted. Naturally, a smaller bearing comes with less surface area which in turn means the less point of contact. The oil used is also made to be thinner. The balance shaft also comes in for the purpose of cancelling the vibration.
In addition to the improvement above, the technicians are also looking at introducing valves that have rocks fitted with slick coating and rollers. The pistons can also be made so that they have small coated skirts in addition to fitting with rings that give low tension which helps to push back against the piston drag. The pistons are known to be responsible for up to twenty five percent of all the energy loss from friction and must thus be targeted in this modification.
The other available alternatives include the use of polymer and Teflon seals. Many motor vehicle manufacturers are now opting for seals over the old-styled spring-loaded seals that previously used. This is just another example of the technology the engineers are considering. Tungsten ductile, a chemical compound commonly used in the space agency NASA as a lubricant, and later widely used in auto racing has not been largely exploited by other ordinary vehicles largely due to its cost and complexity. However, some companies are now rubbing it on the engine parts to give a wear and heat resistant surface.
Regardless of the method used the need to improve efficiency and reduced carbon emission is the main drivers that keep engineers sleepless with the hope of achieving the most user friendly and environmental friendly vehicles for the future generation.
This is the reason why pistons are now made of aluminum, unlike ages ago when the cast iron was the favorite. Aluminum is less dense, resulting in lower weight which in turn ensures that less force is used to turn the engine parts. In increased friction translates to more heat and also quickens the rate at which wear and tear take place. This all comes down to the low performance level and increase emission of undesirable gases into the atmosphere.
The pressure is thus on the engineers to reduce friction to the minimum possible level, and indeed, they are not disappointing as great strides have been made in this direction. Engineers give a lot of thought to every single component that goes into the combustion system. Technically, the less friction an engine has the increased horsepower per liter it gives translating to efficiency or fuel economy.
The need to come up with a fuel efficient combustion system has pushed the specialist in this industry to the corner. Currently, consideration goes into the low tech, off-the-rack parts such as the cylinder rings, the seals, and the oil pump among other parts which are now designed to the premium rate equipment.
One area that is under consideration is the use of smaller bearings. These are coated with lead, tin, copper or compound of the same as these are considered to reduce the heat emitted. Naturally, a smaller bearing comes with less surface area which in turn means the less point of contact. The oil used is also made to be thinner. The balance shaft also comes in for the purpose of cancelling the vibration.
In addition to the improvement above, the technicians are also looking at introducing valves that have rocks fitted with slick coating and rollers. The pistons can also be made so that they have small coated skirts in addition to fitting with rings that give low tension which helps to push back against the piston drag. The pistons are known to be responsible for up to twenty five percent of all the energy loss from friction and must thus be targeted in this modification.
The other available alternatives include the use of polymer and Teflon seals. Many motor vehicle manufacturers are now opting for seals over the old-styled spring-loaded seals that previously used. This is just another example of the technology the engineers are considering. Tungsten ductile, a chemical compound commonly used in the space agency NASA as a lubricant, and later widely used in auto racing has not been largely exploited by other ordinary vehicles largely due to its cost and complexity. However, some companies are now rubbing it on the engine parts to give a wear and heat resistant surface.
Regardless of the method used the need to improve efficiency and reduced carbon emission is the main drivers that keep engineers sleepless with the hope of achieving the most user friendly and environmental friendly vehicles for the future generation.
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