Difference between revisions of "Oil"
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| − | + | ==Basic Purpose of Oil== | |
| − | + | ==System design== | |
| − | =Basic Purpose of Oil= | + | ===Wet Sump=== |
| − | =System design= | + | ====[[File:Wet sump.PNG|none|middle|thumb|Wet Sump Schematic]]==== |
| − | ==Wet Sump== | ||
| − | ===[[File:Wet sump.PNG|none|middle|thumb|Wet Sump Schematic]]=== | ||
| − | === | + | ===Banking in Engines=== |
[[File:Oil system.PNG|right|middle|thumb|Oil System Differences]] | [[File:Oil system.PNG|right|middle|thumb|Oil System Differences]] | ||
In a stock motorcycle engine, the oil is stored in the oil pan as an internal oil pan. This is called a “wet sump” oil system. On a motorcycle, this works during hard lateral turns because the motorcycle itself leans into the turn, allowing the oil pickup to remain submerged during the turn. In a four wheeled vehicle, the engine cannot tilt into the turn, and the oil is forced against the side of the pan. | In a stock motorcycle engine, the oil is stored in the oil pan as an internal oil pan. This is called a “wet sump” oil system. On a motorcycle, this works during hard lateral turns because the motorcycle itself leans into the turn, allowing the oil pickup to remain submerged during the turn. In a four wheeled vehicle, the engine cannot tilt into the turn, and the oil is forced against the side of the pan. | ||
| − | ===Accumulator=== | + | ====Accumulator==== |
| − | ==Dry Sump== | + | ===Dry Sump=== |
[[File:Dry sump.PNG|right|middle|thumb|Dry Sump Schematic]] | [[File:Dry sump.PNG|right|middle|thumb|Dry Sump Schematic]] | ||
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In a dry sump oil system, the oil for the engine is stored in an external reservoir. The oil that collects at the bottom of the engine is quickly removed by a scavenging pump, and routed into the external reservoir from which the supplies for the engine and the turbocharger are drawn. A common industry solution, a dry sump is often used in very high performance engines for a variety of reasons, including reducing the load on the engine by pumping the oil electrically, or reducing the frictional work the engine has to overcome by reducing windage. A dry sump is common in FSAE for forced induction applications as high lateral accelerations reached in the FSAE competition greatly increase the chances of temporary oil starvation of the turbocharger[https://dspace.mit.edu/handle/1721.1/36310]. | In a dry sump oil system, the oil for the engine is stored in an external reservoir. The oil that collects at the bottom of the engine is quickly removed by a scavenging pump, and routed into the external reservoir from which the supplies for the engine and the turbocharger are drawn. A common industry solution, a dry sump is often used in very high performance engines for a variety of reasons, including reducing the load on the engine by pumping the oil electrically, or reducing the frictional work the engine has to overcome by reducing windage. A dry sump is common in FSAE for forced induction applications as high lateral accelerations reached in the FSAE competition greatly increase the chances of temporary oil starvation of the turbocharger[https://dspace.mit.edu/handle/1721.1/36310]. | ||
| − | =Oiling for Turbochargers= | + | ==Oiling for Turbochargers== |
The engine has a robust internal oil management and supply system, so a brief or inconsistent oil supply will have limited consequences for the engine itself. However, the turbocharger is spinning at well over 200,000 rpm, meaning even a small perturbation in oil supply will spell disaster for the bearing system. [citation needed, our source this in our senior proj was alumni communications] | The engine has a robust internal oil management and supply system, so a brief or inconsistent oil supply will have limited consequences for the engine itself. However, the turbocharger is spinning at well over 200,000 rpm, meaning even a small perturbation in oil supply will spell disaster for the bearing system. [citation needed, our source this in our senior proj was alumni communications] | ||
| + | [[category: Internal Combustion]] | ||
Revision as of 19:44, 19 May 2020
Contents
Basic Purpose of Oil
System design
Wet Sump
Banking in Engines
In a stock motorcycle engine, the oil is stored in the oil pan as an internal oil pan. This is called a “wet sump” oil system. On a motorcycle, this works during hard lateral turns because the motorcycle itself leans into the turn, allowing the oil pickup to remain submerged during the turn. In a four wheeled vehicle, the engine cannot tilt into the turn, and the oil is forced against the side of the pan.
Accumulator
Dry Sump
In a dry sump oil system, the oil for the engine is stored in an external reservoir. The oil that collects at the bottom of the engine is quickly removed by a scavenging pump, and routed into the external reservoir from which the supplies for the engine and the turbocharger are drawn. A common industry solution, a dry sump is often used in very high performance engines for a variety of reasons, including reducing the load on the engine by pumping the oil electrically, or reducing the frictional work the engine has to overcome by reducing windage. A dry sump is common in FSAE for forced induction applications as high lateral accelerations reached in the FSAE competition greatly increase the chances of temporary oil starvation of the turbocharger[1].
Oiling for Turbochargers
The engine has a robust internal oil management and supply system, so a brief or inconsistent oil supply will have limited consequences for the engine itself. However, the turbocharger is spinning at well over 200,000 rpm, meaning even a small perturbation in oil supply will spell disaster for the bearing system. [citation needed, our source this in our senior proj was alumni communications]
