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Compressed natural gas (CNG) is a fuel gas mainly composed of methane (CH 4), compressed to less than 1% of the volume it occupies at standard atmospheric pressure.It is stored and distributed in hard containers at a pressure of 20–25 megapascals (2,900–3,600 psi; 200–250 bar), usually in cylindrical or spherical shapes.
Methane, the main component of natural gas, has an autoignition temperature of 580 °C, [48] whereas gasoline and diesel autoignite at approximately 250 °C and 210 °C respectively. With a compressed natural gas (CNG) engine, the mixing of the fuel and the air is more effective since gases typically mix well in a short period of time.
Engine Displacement Horsepower ranges Torque ranges Fuel Detroit Diesel DD5 5.1L 200-240 hp 560-660 lb-ft: Diesel: Cummins B6.7 6.7L 200-260 hp 520-660 lb-ft Diesel: Cummins B6.7N [2] 6.7L 240 hp 560 lb-ft Natural Gas: DriveForce 8.0L 8.0L 339 hp 495 lb-ft LPG: DriveForce 8.8L [3] 8.8L 270 hp 565 lb-ft LPG
189–273 inches (4.8–6.9 m) [citation needed] Interior Headroom Unknown GVWR Unknown Fuel Type(s) Diesel Gasoline; Diesel; Compressed Natural Gas (CNG) Engine Cummins ISB (200–260 hp or 150–190 kW) Caterpillar C7 (200–260 hp or 150–190 kW) Cummins 5.9L ISB (diesel/natural gas 1997-2002) (220–300 hp or 160–220 kW) [citation needed]
High-pressure compressed natural gas (CNG), mainly composed of methane, that is used to fuel normal combustion engines instead of gasoline. Combustion of methane produces the least amount of CO 2 of all fossil fuels. Gasoline cars can be retrofitted to CNG and become bifuel Natural gas vehicles (NGVs) as the gasoline tank is kept. The driver ...
The Cummins L10 also has a sister engine which runs on compressed natural gas (CNG). [2] 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 Cummins ISC also has a sister engine which is designed off the existing ISC 8.3-litre cylinder block which runs on compressed natural gas (CNG). Cummins reintroduced this engine as the C PLUS engine which has a maximum power rating of 280 horsepower (209 kW; 284 PS). A few thousand units of this engine are now roaming in the world operating ...
Because natural gas emits less smog-forming pollutants than other fossil fuels when combusted, cleaner air has been measured in urban localities switching to natural gas vehicles. [65] Tailpipe CO 2 can be reduced by 15–25% compared to gasoline, diesel. [66] The greatest reductions occur in medium and heavy duty, light duty and refuse truck ...