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Cummins-B-Engine

The Cummins 5.9L B engine was first introduced in 1984. Once dodge entered the full size truck market they needed a powerful and reliable diesel engine. They chose the Cummins 5.9L engine, and since the engine had already been in production for 5 year at the time in which Dodge rolled the first full size Ram truck off the assembly line Dodge was forced to build the truck around the Cummins engine.

During that time the Cummins fuel pump used in the engine was changed four times. The first two Cummins injection pumps were mechanical and called the VE Bosch and P7100 pump. The changes made to the Cummins injector pump system were all designed to lower emissions, increase fuel efficiency and increase power. A Cummins pump installed in a Dodge truck was always manufactured by Bosch.

With the advent of the Cummins VP44 pump, the first of the computer controlled Cummins injection pumps, the Cummins 5.9L engine became even more powerful and more fuel efficient. These advances were critical to meet EPA standards for Dodge. The first two model years of the VP44 pump were marked with a great deal of long-term reliability issues. Dodge in its partnership with Cummins and Bosch had used a Cummins lift pump for the diesel fuel draw from the tank to the VP44 pump that was subject to reducing the pressure needed from this pump to the VP44 pump. A minimum of 5psi is needed in order to keep the VP44 supplied with enough fuel that it does not burn itself out. This problem was quickly fixed with a change in Cummins lift pumps positioning the lift pump inside the fuel tank. After four years of service the VP44 pump was replaced with the CP3 pump, a very similar pump that provided even greater efficiency because its operating fuel pressure was approximately 20% higher than that of the VP44 Cummins injection pump.

Cummins produced over 1.5 million B engines for Dodge over the 20 year span. This Cummins diesel engine gave Dodge an advantage over its completion because other manufactures were offering V-8 diesel engines where Cummins six cylinder engines provided greater torque with 40% less moving parts. This correlated into the useful life of the B engine being between 300,000 to 350,000 miles before a major overhaul was needed.

Cummins and Dodge together introduced a 6.7L engine in 2007. The 6.7L engine became the new work horse engine for Dodge. It uses the latest technology in Common Rail with “pilot” injection technology. “Pilot” injection technology allows for the Cummins injector pump to disperse a minute amount of fuel to prime the cylinder. Then later the full delivery of fuel occurs. The Cummins 6.7L engine is also equipped with advanced catalytic converters that also aid in the reduction of emissions.

History of Bosch :

1861

Robert Bosch is Born

1886

Travels to the United States working for a little over a year. Returns to Germany after working for Seiman Brothers for six months.

1902

Robert Bosch develops the Magneto Injection Device with the use of a spark plug. It increases the number of engine rpms an engine is capable of completing by more than six times current automotive capabilities.

1906

100,000 Magneto sold

1913

First Bosch Headlight which later becomes complemented by the first complete electrical system for any car which included a magneto, spark plug, headlights, alternator & governor switch.

1914

Bosch develops the first electric starter

1920

Bosch begins the manufacturing of spark plug insulators.

1921

Bosch introduces a horn.

1922

Bosch creates the first battery for a motorcycle.

1921

The first continuously variable output diesel fuel injection pump is invented by Prosper L’ Orange.

1926

Bosch creates the first windshield wiper that uses an electric motor replacing previous designs in place.

1927

Bosch creates the first battery for a car.

1932

Bosch develops its first hand held electric tool.

1936

Bosch builds diesel injection for cars.

1936

Mercedes Benz builds the first production car the 260 D powered with the use of a diesel powered engine.

1952

Bosch introduces fuel injection to European automotive industry

1964

Robert Bosch Foundation is established which still owns 90% of the company stock.

1967

“Jetronic” as a Bosch Injection System is introduced which lowers fuel consumption, exhaust, emissions.

1976

At Bosch fuel economy concerns drives the building of the first oxygen sensor that greatly reduces the emissions of vehicles. Bosch sells over 30 million oxygen sensors per year.

1978

Bosch first introduces Anti-lock braking systesm

1979

Bosch installs the first Bosch Motronic system in a BMW 7 series. The system alters the ignition and Bosch fuel injection timing based upon engine temperature and other factors, to reduce emissions and provide greater performance.

1986

Bosch introduces traction control

1995

Electronic Stability Control is introduced (ESP). The system controls the braking of the wheels in order to keep a driver from losing control of a vehicle during a skid.

1997

Bosch Introduces the Common Rail system. This system is instrumental in the resurgence of diesel powered cars in the EU. The Bosch injection pump makes small diesel engines with lower emissions, higher power, less noise and greater fuel economy. This invention put Bosch injection systems at the forefront for diesel engines.

2000

Bosch Direct Inject gasoline injection decreases fuel consumption over traditional Bosch fuel injection by 15%.

2001

EHB Brakes are put into commercial use. The intensity in which the pressure of the foot is placed on the pedal the greater the pressure applied in braking.

2003

The 3rd generation of common rail with Bosch piezo injectors further reduces diesel emissions. The 3rd generation Bosch diesel injection pump operates at four times the fuel pressure as the first generation Bosch fuel pump.

2005

Bosch introduces night vision.

2007

Start-Stop System uses 8% less fuel during driving in urban areas. The vehicle is restarted once the clutch is engaged.