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Carbon build-up in the intake manifold will occur when blow-by gases are allowed to permanently contaminate the intake air because of a failing PCV system. [12] Carbon build-up or oil sludge from blow-by gases on intake valves are usually not a problem in port injected engines. This is due to the fact that the fuel hits the intake valves on the ...
By June 2020, VW had already expended $33.3 billion in settlements and other costs including buybacks of the excessively polluting diesel vehicles. In a statement, VW said it would ask the circuit court to review the ruling, and that the company if necessary would take the case to the U.S. Supreme Court. [306]
Cars with gasoline direct injection (GDI) have been especially prone to carbon buildup, and car makers recommend fuels with higher detergent levels to combat the problem. [18] At first GDI was mainly available in high-end autos, but it is now being used in mid-range cars and economy cars, such as the Hyundai Sonata, Ford Focus and Hyundai Accent.
Gasoline direct injection (GDI), also known as petrol direct injection (PDI), [1] is a mixture formation system for internal combustion engines that run on gasoline (petrol), where fuel is injected into the combustion chamber. This is distinct from manifold injection systems, which inject fuel into the intake manifold (inlet manifold).
secondary air injection pump for direct injection into exhaust ports to assist cold start operation, cast iron exhaust manifold (with integrated turbocharger), one primary and two secondary high-flow sports catalytic converters, two heated oxygen sensors monitoring pre- and post-primary catalyst exhaust gases (secondary catalysts unmonitored ...
Since fuel is directly injected inside the combustion chamber, it never gets a chance to wash any contaminants behind the valves. This results in excessive carbon build up over time, hindering performance. Some engines (like Toyota's Dynamic Force engines) combine direct injection with traditional multi port fuel injection to ameliorate this ...
The deal - signed by Google and Indian supplier Varaha - is one of the biggest ever involving biochar, and is the tech giant's first foray into India's carbon dioxide removal (CDR) sector.
The following articles list Volkswagen Group engines which are available worldwide. These include motor vehicle engines, marine engines sold by Volkswagen Marine [1] and industrial engines sold by Volkswagen Industrial Motor.