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  1. Pingback: French Safran Roped In For Sorting Last Minute ‘Noisy’ Hiccup. – Indian Defence News Updates – IDNU

  2. 2

    dalji

    All French thing make a noise I mean even their Aircraft carrier (Engine) is said to make loud noises

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  3. 3

    bharat

    “One way to improve performance and fuel economy is to increase the compression ratio inside the engine. The compression ratio refers to the amount of fuel and air squeezed into the combustion chamber. When this ratio is higher, it uses fuel more efficiently.Most of the engines on the road today mix the fuel and air before introducing them to the combustion chamber. In a direct-injected engine, highly pressurized fuel is squirted directly into the combustion chamber at the top of the piston’s stroke, near the spark plug.

    Since this creates quite a bit of pressure in the combustion chamber, direct injection can cause knocking, too, just like higher compression ratios. Ford Motor Company has solved this problem by combining direct injection with turbo charging, which uses exhaust gases to boost performance.”

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  4. 4

    bharat


    The problem with higher compression ratios is usually a knocking sound in the engine, which occurs when temperature and pressure are too high in the chamber and the air and fuel mixture ignites too early. Higher octane gas on its own can solve some of this problem, but Mazda has developed a longer exhaust manifold that reduces the temperature and the chance of engine knock. The SKYACTIV-G system also has a faster combustion time, which means the air-fuel mixture ignites properly before the temperature can build up and knocking begins.

    All this engine technology — as well as weight-saving materials and a new transmission — mean 15 percent lower fuel consumption and emissions and 15 percent more torque. And increased torque translates into more One way to improve performance and fuel economy is to increase the compression ratio inside the engine. The compression ratio refers to the amount of fuel and air squeezed into the combustion chamber. When this ratio is higher, it uses fuel more efficiently.Most of the engines on the road today mix the fuel and air before introducing them to the combustion chamber. In a direct-injected engine, highly pressurized fuel is squirted directly into the combustion chamber at the top of the piston’s stroke, near the spark plug.

    Since this creates quite a bit of pressure in the combustion chamber, direct injection can cause knocking, too, just like higher compression ratios. Ford Motor Company has solved this problem by combining direct injection with turbo charging, which uses exhaust gases to boost performance.”

    Reply

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