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Variable-geometry turbocharger, the Glossary

Variable-geometry turbochargers (VGTs), occasionally known as variable-nozzle turbochargers (VNTs), are a type of turbochargers, usually designed to allow the effective aspect ratio (A/R ratio) of the turbocharger to be altered as conditions change.^[1]

29 relations: Acura, Acura RDX, Air brake (road vehicle), Aspect ratio, Back pressure, Blade pitch, BorgWarner, Chrysler 2.2 & 2.5 engine, Cummins, Diesel particulate filter, Exhaust brake, Exhaust gas recirculation, Exhaust manifold, Fiat, Fiat Croma, Fuel efficiency, Garrett AiResearch, Garrett Motion, Intercooler, Koenigsegg Agera, Mitsubishi Heavy Industries, Peugeot 405, Power-to-weight ratio, Self-cleaning oven, Servomechanism, Shelby CSX, Turbocharger, Twin-turbo, Wastegate.
Turbochargers

Acura

Acura is the luxury and performance division of Japanese automaker Honda, based primarily in North America.

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Acura RDX

The Acura RDX is a compact luxury crossover SUV produced by Acura, a luxury vehicle division of Honda, as the second crossover SUV offering from the brand after the mid-size MDX.

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Air brake (road vehicle)

An air brake or, more formally, a compressed-air-brake system, is a type of friction brake for vehicles in which compressed air pressing on a piston is used to both release the parking/emergency brakes in order to move the vehicle, and also to apply pressure to the brake pads or brake shoes to slow and stop the vehicle.

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Aspect ratio

The aspect ratio of a geometric shape is the ratio of its sizes in different dimensions.

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Back pressure

Back pressure (or backpressure) is the term for a resistance to the desired flow of fluid through pipes.

See Variable-geometry turbocharger and Back pressure

Blade pitch

Blade pitch or simply pitch refers to the angle of a blade in a fluid.

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BorgWarner

BorgWarner Inc. is an American automotive and e-mobility supplier headquartered in Auburn Hills, Michigan.

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Chrysler 2.2 & 2.5 engine

The 2.2 and 2.5 are a family of inline-4 engines developed by Chrysler Corporation originally for the Chrysler K- and L-platforms cars and subsequently used in many other Chrysler vehicles.

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Cummins

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

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Diesel particulate filter

A diesel particulate filter (DPF) is a device designed to remove diesel particulate matter or soot from the exhaust gas of a diesel engine.

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Exhaust brake

An exhaust brake is a means of slowing a diesel engine by closing off the exhaust path from the engine, causing the exhaust gases to be compressed in the exhaust manifold, and in the cylinder.

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Exhaust gas recirculation

In internal combustion engines, exhaust gas recirculation (EGR) is a nitrogen oxide emissions reduction technique used in petrol/gasoline, diesel engines and some hydrogen engines.

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Exhaust manifold

In automotive engineering, an exhaust manifold collects the exhaust gases from multiple cylinders into one pipe.

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Fiat

Fiat Automobiles S.p.A. (originally FIAT, Fabbrica Italiana Automobili di Torino) is an Italian automobile manufacturer, formerly part of Fiat Chrysler Automobiles, and since 2021 a subsidiary of Stellantis through its Italian division Stellantis Europe.

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Fiat Croma

The Fiat Croma name was used for two distinct large family cars by Fiat, one a five door liftback manufactured and marketed from 1985 to 1996, and after a nine-year hiatus, a crossover station wagon manufactured and marketed from 2005 to 2010.

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Fuel efficiency

Fuel efficiency (or fuel economy) is a form of thermal efficiency, meaning the ratio of effort to result of a process that converts chemical potential energy contained in a carrier (fuel) into kinetic energy or work.

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Garrett AiResearch

Garrett AiResearch was a manufacturer of turboprop engines and turbochargers, and a pioneer in numerous aerospace technologies.

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Garrett Motion

Garrett Motion Inc., formerly Honeywell Transportation Systems and Honeywell Turbo Technologies, is an American company primarily involved in engineering, development and manufacturing of turbochargers and related forced induction systems for ground vehicles from small passenger cars to large trucks and industrial equipment and construction machinery.

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Intercooler

An intercooler is a heat exchanger used to cool a gas after compression. Variable-geometry turbocharger and intercooler are turbochargers.

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Koenigsegg Agera

The Koenigsegg Agera is a mid-engine sports car produced by Swedish car manufacturer Koenigsegg.

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Mitsubishi Heavy Industries

is a Japanese multinational engineering, electrical equipment and electronics corporation headquartered in Tokyo, Japan.

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Peugeot 405

The Peugeot 405 is a large family car manufactured by the French automaker Peugeot from 1987 to 1997.

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Power-to-weight ratio

Power-to-weight ratio (PWR, also called specific power, or power-to-mass ratio) is a calculation commonly applied to engines and mobile power sources to enable the comparison of one unit or design to another.

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Self-cleaning oven

A self-cleaning or pyrolytic oven is an oven which uses high temperature (approximately) to burn off leftovers from baking, without the use of any chemical agents.

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Servomechanism

In mechanical and control engineering, a servomechanism (also called servo system, or simply servo) is a control system for the position and its time derivatives, such as velocity, of a mechanical system.

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Shelby CSX

The Shelby CSX (Carroll Shelby eXperimental) is a limited-production high performance automobile based on the turbocharged intercooled Dodge Shadow and Plymouth Sundance.

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Turbocharger

In an internal combustion engine, a turbocharger (also known as a turbo or a turbosupercharger) is a forced induction device that is powered by the flow of exhaust gases. Variable-geometry turbocharger and turbocharger are turbochargers.

See Variable-geometry turbocharger and Turbocharger

Twin-turbo

In an internal combustion engine, twin-turbo is a layout in which two turbochargers work in tandem to compress the intake fuel/air mixture (or intake air, in the case of a direct-injection engine). Variable-geometry turbocharger and twin-turbo are turbochargers.

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Wastegate

A wastegate is a valve that controls the flow of exhaust gases to the turbine wheel in a turbocharged engine system. Variable-geometry turbocharger and wastegate are turbochargers.

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References

[1] https://en.wikipedia.org/wiki/Variable-geometry_turbocharger

Also known as Variable geometry turbocharger, Variable turbine geometry, Variable-vane turbo.