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  2. Bypass ratio - Wikipedia

    en.wikipedia.org/wiki/Bypass_ratio

    The Rolls–Royce Conway turbofan engine, developed in the early 1950s, was an early example of a bypass engine. The configuration was similar to a 2-spool turbojet but to make it into a bypass engine it was equipped with an oversized low pressure compressor: the flow through the inner portion of the compressor blades went into the core while ...

  3. On-board diagnostics - Wikipedia

    en.wikipedia.org/wiki/On-board_diagnostics

    For example, the 1994–1995 model year Corvettes have one post-catalyst oxygen sensor (although they have two catalytic converters), and have a subset of the OBD-II codes implemented. [20] This hybrid system was present on GM B-body cars (the Chevrolet Caprice, Impala, and Buick Roadmaster) for 1994–1995 model years, H-body cars for 1994 ...

  4. Check engine light - Wikipedia

    en.wikipedia.org/wiki/Check_engine_light

    A check engine light or malfunction indicator lamp (MIL), is a tell-tale that a computerized engine-management system uses to indicate a malfunction or problem with the vehicle ranging from minor (such as a loose gas cap) to serious (worn spark plugs, engine problems or a faulty oil valve, etc.).

  5. OBD-II PIDs - Wikipedia

    en.wikipedia.org/wiki/OBD-II_PIDs

    OBD-II PIDs (On-board diagnostics Parameter IDs) are codes used to request data from a vehicle, used as a diagnostic tool.. SAE standard J1979 defines many OBD-II PIDs. All on-road vehicles and trucks sold in North America are required to support a subset of these codes, primarily for state mandated emissions inspections.

  6. Category:Medium-bypass turbofan engines - Wikipedia

    en.wikipedia.org/wiki/Category:Medium-bypass...

    Turbofan engines with a bypass ratio of between 2 and 4. Pages in category "Medium-bypass turbofan engines" The following 17 pages are in this category, out of 17 total.

  7. Category:High-bypass turbofan engines - Wikipedia

    en.wikipedia.org/wiki/Category:High-bypass...

    Turbofan engines with a bypass ratio of at least 4. Pages in category "High-bypass turbofan engines" The following 49 pages are in this category, out of 49 total.

  8. Pratt & Whitney PW1000G - Wikipedia

    en.wikipedia.org/wiki/Pratt_&_Whitney_PW1000G

    The PW8000 engine aimed for 10% lower operating costs, or $600,000 per aircraft annually. [3] The PW8000 had an 11:1 bypass ratio (twice that of the V2500), a 40:1 overall pressure ratio, and 13 rotor stages instead of the 17 [4] in the V2500 for similar thrusts. Preliminary development was to end by June 1, the first test for 10 months later ...

  9. Category:Low-bypass turbofan engines - Wikipedia

    en.wikipedia.org/wiki/Category:Low-bypass...

    Turbofan engines with a bypass ratio of less than 2 (usually less than 1). These engines were commonly used on narrow body jet airliners of the 1960s and 1970s, some business jets from the same time period, and on modern fighter aircraft.