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Encyclopedia > Cylinder deactivation

Variable displacement is an automobile engine technology that allows the engine displacement to change for improved fuel economy. Many automobile manufacturers have adopted this technology as of 2005, but it is not a new concept. Engine displacement is defined as the total volume of air/fuel mixture an engine can draw in during one complete engine cycle; it is normally stated in cubic inches, cubic centimeters, or litres. ... cars go vroom vroom . ... Engine displacement is defined as the total volume of air/fuel mixture an engine can draw in during one complete engine cycle; it is normally stated in cubic inches, cubic centimeters, or litres. ... Fuel efficiency, sometimes also referred to as fuel economy and commonly gas mileage in the United States, is a numeric measure often used to describe the amount of fuel consumed with regard to the distance travelled in a transportation vehicle, such as an automobile. ... 2005 (MMV) was a common year starting on Saturday of the Gregorian calendar. ...


Most variable displacement systems work by turning off a bank of cylinders in a V engine, but the initial systems worked differently. Pioneered on Cadillac's ill-fated L62 "V8-6-4" engine, the original multi-displacement system turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. But the system was troublesome, and the technology was quickly retired. A V engine is a common configuration for an internal combustion engine in which the pistons are aligned so that, if viewed along the line of the crankshaft, they appear to be in a V. Usually, two opposing pistons share one crank on the crankshaft. ... Cadillac is a brand of luxury automobile, part of the General Motors corporation, produced and mostly sold in the United States; outside of North America, they have been less successful. ... Cadillac was the first automobile maker to mass produce a V8 engine. ...


No automaker attempted the same trick again until Mercedes-Benz experimented with their Multi-Displacement System V12 in the 1990s. It was not widely deployed until the 2004 DaimlerChrysler Hemi. Other systems appeared in 2005 from GM (Displacement on Demand in the Generation IV small-block) and Honda (Variable Cylinder Management on the J family engines). Honda's system works by deactivating a bank of cylinders, while the Chrysler Hemi shuts off opposing pairs. This page is about the Mercedes-Benz brand of automobiles and trucks from the DaimlerChrysler automobile manufacturer. ... DaimlerChryslers Multi-Displacement System (MDS) is an automobile engine variable displacement technology. ... A V12 is an internal combustion engine with 12 cylinders in V configuration. ... The 1990s decade refers to the years from 1990 to 1999, inclusive, the last decade of the 20th Century. ... 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ... DaimlerChrysler AG (FWB: DCX, NYSE: DCX, TYO: 7663 ), headquartered in Stuttgart, Germany and Auburn Hills, Michigan, is a prominent automobile and truck manufacturer and financial services provider (through DaimlerChrysler Services). ... Early Hemi in a 1957 Chrysler 300C. A Chrysler Hemi engine is one of three different internal combustion engine families from the Chrysler Corporation (or its successor, DaimlerChrysler) that are Hemi engines; in other words, they utilise a hemispherical combustion chamber. ... 2005 (MMV) was a common year starting on Saturday of the Gregorian calendar. ... You may be looking for the arena found in Vancouver, see GM place General Motors Corporation NYSE: GM, also known as GM, is a United States-based automobile maker with worldwide operations and brands including Buick, Cadillac, Chevrolet, GMC, Holden, Hummer, Opel, Pontiac, Saturn, Saab and Vauxhall. ... Displacement on Demand is an automobile variable displacement technology from General Motors. ... The LS is Generation III and Generation IV, the latest evolution of General Motors line of small-block V8 engines. ... Honda Motor Co. ... Variable Cylinder Management (VCM) is Hondas term for a variable displacement technology. ... The J-series was Hondas second engine family, introduced in 1996. ...


Two issues to overcome with all of these systems is the unbalanced cooling and vibration of variable-displacement engines.


Variable displacement technologies

You may be looking for the arena found in Vancouver, see GM place General Motors Corporation NYSE: GM, also known as GM, is a United States-based automobile maker with worldwide operations and brands including Buick, Cadillac, Chevrolet, GMC, Holden, Hummer, Opel, Pontiac, Saturn, Saab and Vauxhall. ... Cadillac was the first automobile maker to mass produce a V8 engine. ... Cadillac is a brand of luxury automobile, part of the General Motors corporation, produced and mostly sold in the USA; outside of North America, they have been less successful. ... You may be looking for the arena found in Vancouver, see GM place General Motors Corporation NYSE: GM, also known as GM, is a United States-based automobile maker with worldwide operations and brands including Buick, Cadillac, Chevrolet, GMC, Holden, Hummer, Opel, Pontiac, Saturn, Saab and Vauxhall. ... Displacement on Demand is an automobile variable displacement technology from General Motors. ... DaimlerChrysler AG (FWB: DCX, NYSE: DCX, TYO: 7663 ), headquartered in Stuttgart, Germany and Auburn Hills, Michigan, is a prominent automobile and truck manufacturer and financial services provider (through DaimlerChrysler Services). ... DaimlerChryslers Multi-Displacement System (MDS) is an automobile engine variable displacement technology. ... The Chrysler Corporation is a United States-based automobile manufacturer, since 1998 merged with Daimler_Benz into DaimlerChrysler. ... DaimlerChrysler AG (FWB: DCX, NYSE: DCX, TYO: 7663 ), headquartered in Stuttgart, Germany and Auburn Hills, Michigan, is a prominent automobile and truck manufacturer and financial services provider (through DaimlerChrysler Services). ... DaimlerChryslers Active Cylinder Control (ACC) is a variable displacement technology. ... This page is about the Mercedes-Benz brand of automobiles and trucks from the DaimlerChrysler automobile manufacturer. ... Honda Motor Co. ... Variable Cylinder Management (VCM) is Hondas term for a variable displacement technology. ...

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