Cummins B Series engine
Encyclopedia : C : CU : CUM : Cummins B Series engine
The Cummins B Series is a family of straight-4 and straight-6 Diesel truck and industrial piston engines. The B Series is known for displacing "one liter per cylinder" because of the popular 3.9 L straight-4 and 5.9 L straight-6. A 3.3 L straight-4 is also available. The B Series is widely used in many segments, including pickup trucks (the Dodge Ram), busses, military vehicles, and construction equipment.
The engine was originally designed by Cummins and Case Corporation for commercial truck applications, and appeared in a passenger vehicle, the Dodge Ram, in 1989. It uses a gear-drive camshaft for extra reliability. Also specified is a deep-skirt engine block and extremely strong connecting rods. A Holset turbocharger is used.
The original B Series was updated with 24 valves and an electronic engine management system to become the ISB in 1998.
B5.9
The 5.9 L B5.9 was the first member of the family to be used in a passenger vehicle. Appearing in the 1989 Dodge Ram pickup truck, it quickly became a popular alternative to the large V8 gasoline engines normally used in full-size pickup trucks.
This engine is also used in the Dennis Dart midibus since 1989.
ISB
The 5.9 L ISB is the largest straight-6 engine ever produced for passenger vehicles, and the improved High Output 600 version was on the Ward's 10 Best Engines list for 2004.
One unusual feature of the ISB is that it is a multi-valve pushrod engine design. The engine displaces 5883 cc with a 102.1 mm bore and 119.9 mm stroke. A turbocharger output in the high-compression (17.2:1 in recent versions) Diesel. It is an all-iron engine with forged steel connecting rods, an assembled camshaft, and a cast aluminum intake manifold. The engine is produced in Columbus, Indiana.
There have been several versions of the 5.9 L ISB featured in the Dodge Ram. The ISB was first introduced to Dodge Rams in 1989. The Cummins engine in 1991 got an intercooler. In 1994, the engine changed over to a Bosch model P7100 inline-style injection pump from the previous Bosch VE series rotary pump. Midway through model year 1998, The engine was redesigned as a 24 valve model to meet updated emissions requirements and introduced the Bosch VP44 rotary injection pump (featuring electronic control) to the Dodge application. It produced 235 hp (175 kW) at 2700 rpm and 460 ft·lbf (625 Nm) from 1600 rpm to 2700 rpm when paired with a manual transmission, but was slightly downrated when used with automatics.
In 2001, an optional high output (HO) version of the ISB was introduced, producing 245 hp (183 kW) at 2700 rpm and 505 ft·lbf (686 Nm) from 1600 rpm to 2700 rpm when paired with a heavy duty six speed transmission. The ISB from previous years remained available, and automatic-equipped engines were now rated the same as manuals.
For the 2003 model year, the Cummins was introduced with Bosch high pressure common rail fuel injection, and again, more power. Midway through the 2004 model year, the Cummins 600 was introduced, producing 325 hp (242 kW) at 2900 rpm and 600 ft·lbf (813 Nm)at 1600 rpm. This high torque output gives the engine its name, and also offers a high specific output of 102 ft·lbf (138 Nm) per liter of displacement.
A 610 version, new for the 2005 model year, pushes torque to 610 ft·lbf (827 Nm).
See also
- List of Cummins engines
- List of Chrysler engines
From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.