Cummins L Series engine

The Cummins L Series engine is a straight-six diesel engine designed and produced by Cummins. It displaces, and began production in 1982 as the L10 at the Jamestown Engine Plant in Jamestown, New York. After lengthening its stroke from 136 to 147mm, its displacement was enlarged to 10.8 liter and the engine renamed ISM 11, later M11. The ISL 9 and current L9 engines are not related to the L10 engine, but instead based on the smaller C series platform with the 135mm stroke of the C8.3 enlarged to 144.5mm, together with 4 valves per cylinder, giving it 8.9 liter displacement. The L10 displaced, and was available in either a vertical form, for upright use in trucks and buses, or horizontal form, for underfloor use in buses and trains. The L10 was Cummins first competitive offering in the British bus market, as their earlier production had been too large and heavy. However, it had a troublesome introduction to the British market, with high oil consumption and sealing problems. By 1994, it had been developed into the M11, and in 1998, Cummins ceased production of the old L series engine. After the original L10 evolved into the M11 engine, the new ISL9 engine was introduced to operate in this market segment, yet with a better power to weight ratio, by enlarging the piston stroke of the older C8.3 engine. The Cummins L10 also has a sister engine which runs on compressed natural gas (CNG). The engine was introduced in 1992 as the L10G before being replaced by the L Gas Plus in 2001 until it became the ISL G in collaboration with Westport Innovations in 2008, now based on the C series engine architecture. The ISL engines were manufactured at plants in Rocky Mount, North Carolina and Darlington, England. In 2016 onwards, the ISL9 was simplified to L9, though physically it shares no resemblance to the old L10 engine: The current L9 engine is a stroked version of the C8.3 engine platform, while the current M11 engine is a stroked version of the original L10 engine platform. ^[1]

13 relations: Cast iron, Compressed natural gas, Cummins, Cummins M Series engine, Darlington, Diesel engine, Engine displacement, Jamestown, New York, Rocky Mount, North Carolina, Straight-six engine, Water cooling, Westport Innovations, Wet sump.

Cast iron

Cast iron is a group of iron-carbon alloys with a carbon content greater than 2%.

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Compressed natural gas

Compressed natural gas (CNG) (methane stored at high pressure) is a fuel which can be used in place of gasoline (petrol), Diesel fuel and propane/LPG.

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Cummins

Cummins Inc. is an American Fortune 500 corporation that designs, manufactures, and distributes engines, filtration, and power generation products.

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Cummins M Series engine

The Cummins M Series engine is a straight six diesel engine designed and produced by Cummins.

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Darlington

Darlington is a large market town in County Durham, in North East England.

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Diesel engine

The diesel engine (also known as a compression-ignition or CI engine), named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel which is injected into the combustion chamber is caused by the elevated temperature of the air in the cylinder due to mechanical compression (adiabatic compression).

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Engine displacement

Engine displacement is the swept volume of all the pistons inside the cylinders of a reciprocating engine in a single movement from top dead centre (TDC) to bottom dead centre (BDC).

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Jamestown, New York

Jamestown is a city in southern Chautauqua County, New York, United States.

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Rocky Mount, North Carolina

Rocky Mount is a city in Edgecombe and Nash counties in the Atlantic coastal plain region of the U.S. state of North Carolina.

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Straight-six engine

The straight-six engine or inline-six engine (often abbreviated I6 or L6) is an internal combustion engine with the cylinders mounted in a straight line along the crankcase with all the pistons driving a common crankshaft (straight engine).

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Water cooling

Water cooling is a method of heat removal from components and industrial equipment.

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Westport Innovations

Westport Innovations is a company that develops alternative fuel, low-emissions technologies to allow engines to operate on clean-burning fuels such as compressed natural gas (CNG), liquefied natural gas (LNG), hydrogen and biofuels such as landfill gas.

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Wet sump

A wet sump is a lubricating oil management design for piston engines which uses the crankcase as a built-in reservoir for oil, as opposed to an external or secondary reservoir used in a dry sump design.

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Redirects here:

Cummins ISL, Cummins ISL-G, Cummins ISL9.

References

[1] https://en.wikipedia.org/wiki/Cummins_L_Series_engine

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