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Actual cubic feet per minute (ACFM) is a unit of volumetric flow. It is commonly used by manufacturers of blowers and compressors. [1] This is the actual gas delivery with reference to inlet conditions, whereas cubic foot per minute (CFM) is an unqualified term and should only be used in general and never accepted as a specific definition without explanation.
New cars produced in the early 1990s contained the new refrigerant in their air conditioning systems. Owners of older cars with R-12 systems would either have to invest in an R-12 to R-134a conversion system, buy a new car, or find a qualified technician to recharge their older R-12 system. R-134a has been used in cars for almost 30 years.
The summary chart includes the five largest worldwide automotive manufacturing groups as of 2017 by number of vehicles produced. Those same groups held the top 5 positions 2007 to 2019; Hyundai Motor Group had a lower rank until it took the fifth spot in 2007 from the at that time split German-American auto manufacturer DaimlerChrysler, while Ford became surpassed by Honda in 2020, and even ...
Pages in category "AC motors" ... Universal motor This page was last edited on 20 December 2019, at 01:04 (UTC). Text is available under the Creative ...
Small variable-frequency drive Chassis of above VFD (cover removed). A variable-frequency drive (VFD, or adjustable-frequency drive, adjustable-speed drive, variable-speed drive, AC drive, micro drive, inverter drive, variable voltage variable frequency drive, or drive) is a type of AC motor drive (system incorporating a motor) that controls speed and torque by varying the frequency of the ...
An AC motor is an electric motor driven by an alternating current (AC). The AC motor commonly consists of two basic parts, an outside stator having coils supplied with alternating current to produce a rotating magnetic field , and an inside rotor attached to the output shaft producing a second rotating magnetic field.
First hybrid car on list. [81] Bugatti Chiron Super Sport 300+/Centodieci: 2021/2022 1,176 kW (1,578 hp; 1,600 PS) 30 Chiron Super Sport 300+ and 10 Centodieci units produced. Last exclusively fossil fuel car on the list. [12] [13] [14] Rimac Nevera: 2022 1,408 kW (1,888 hp; 1,914 PS) 150 units to be produced. First all-electric car on the list ...
AC electric motors can be run in fixed-speed operation determined by the number of stator pole pairs in the motor and the frequency of the alternating current supply. AC motors can be made for "pole changing" operation, reconnecting the stator winding to vary the number of poles so that two, sometimes three, speeds are obtained.