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  2. New York City Subway rolling stock - Wikipedia

    en.wikipedia.org/wiki/New_York_City_Subway...

    2009 Slanted ends, married pairs Even-numbered cars have motor-generator and battery, odd-numbered cars have air compressor. Car numbers were originally 4150–4249, 4350–4449 R40A: 1968–1969 IND, BMT: St. Louis Car Company: 200 4350–4549 2009 Married pairs Even-numbered cars have motor-generator and battery, odd-numbered cars have air ...

  3. Air compressor - Wikipedia

    en.wikipedia.org/wiki/Air_compressor

    Air compressor supplies air into a nail gun.. An air compressor is a machine that takes ambient air from the surroundings and discharges it at a higher pressure. It is an application of a gas compressor and a pneumatic device that converts mechanical power (from an electric motor, diesel or gasoline engine, etc.) into potential energy stored in compressed air, which has many uses.

  4. Inverter compressor - Wikipedia

    en.wikipedia.org/wiki/Inverter_compressor

    Inverter compressor. In air conditioning, an inverter compressor is a compressor that is operated with an inverter . In the hermetic type, it can either be a scroll or reciprocating compressor. This type of compressor uses a drive to control the compressor motor speed to modulate cooling capacity. Capacity modulation is a way to match cooling ...

  5. Colgan Air Flight 3407 - Wikipedia

    en.wikipedia.org/wiki/Colgan_Air_Flight_3407

    Colgan Air Flight 3407. / 43.0116; -78.6391. Colgan Air Flight 3407 (marketed as Continental Connection Flight 3407) was a scheduled passenger flight from Newark, New Jersey, US to Buffalo, New York, US on February 12, 2009. Colgan Air staffed and maintained the aircraft used on the flight that was scheduled, marketed, and sold by Continental ...

  6. Kaeser Compressors - Wikipedia

    en.wikipedia.org/wiki/Kaeser_Compressors

    Under the leadership of Carl Kaeser, Jr., Kaeser engineers developed a rotary screw compressor that featured the "Sigma Profile" air-end in the early 1970s. The first compressor to incorporate the Sigma Profile was delivered in 1975. Now represented in every major industrialized country in the world, Kaeser established its first subsidiary in ...

  7. Variable-speed air compressor - Wikipedia

    en.wikipedia.org/wiki/Variable-speed_air_compressor

    A variable-speed drive (VSD) air compressor is an air compressor that takes advantage of variable-speed drive technology. This type of compressor uses a special drive to control the speed ( RPM) of the unit, which in turn saves energy compared to a fixed speed equivalent. [ 1] This is done to improve the efficiency of the compressor as varying ...

  8. Rotary-screw compressor - Wikipedia

    en.wikipedia.org/wiki/Rotary-screw_compressor

    A rotary-screw compressor is a type of gas compressor, such as an air compressor, that uses a rotary-type positive-displacement mechanism. These compressors are common in industrial applications and replace more traditional piston compressors where larger volumes of compressed gas are needed, e.g. for large refrigeration cycles such as chillers ...

  9. Air-start system - Wikipedia

    en.wikipedia.org/wiki/Air-start_system

    An air start system has three main components along with various safety components, namely the air start injector, the distributor and the air receivers. When the system is initiated, starting air from the receivers is distributed by the distributor unit to each respective air start valve according to the firing order of the engine’s cylinders.