enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Gasoline direct injection - Wikipedia

    en.wikipedia.org/wiki/Gasoline_direct_injection

    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).

  3. Top Tier Detergent Gasoline - Wikipedia

    en.wikipedia.org/wiki/Top_Tier_Detergent_Gasoline

    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.

  4. Crankcase ventilation system - Wikipedia

    en.wikipedia.org/wiki/Crankcase_ventilation_system

    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 ...

  5. Stratified charge engine - Wikipedia

    en.wikipedia.org/wiki/Stratified_charge_engine

    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 ...

  6. Skyactiv - Wikipedia

    en.wikipedia.org/wiki/Skyactiv

    The Skyactiv-G [7] is a family of direct injection petrol engines. The engine compression ratio is 14:1, except in the U.S. market where it is 13:1 so the engine can operate on regular instead of premium gasoline; the lower compression ratio reduces torque and fuel economy by 3 to 5 percent. [8]

  7. Making cement is very damaging for the climate. One solution ...

    www.aol.com/news/making-cement-very-damaging...

    Its technology works at around 1,800°F (1,000°C), which requires less energy and emits less carbon. When the captured carbon dioxide is mixed with calcium oxide, it turns into a kind of ...

  8. Exhaust gas recirculation - Wikipedia

    en.wikipedia.org/wiki/Exhaust_gas_recirculation

    In diesel engines in particular, EGR systems come with serious drawbacks, one of which is a reduction in engine longevity. For example, because the EGR system routes exhaust gas directly back into the cylinder intake without any form of filtration, this exhaust gas contains carbon particulates. And, because these tiny particles are abrasive ...

  9. Lean-burn - Wikipedia

    en.wikipedia.org/wiki/Lean-burn

    During the time this design was in production this system (CVCC, Compound Vortex Controlled Combustion) primarily allowed lower emissions without the need for a catalytic converter. These were carbureted engines and the relative "imprecise" nature of such limited the MPG abilities of the concept that now under MPI (Multi-Port fuel Injection ...