Search results
Results from the WOW.Com Content Network
Cutaway showing the configuration : 1 fan, 2A+1C HP compressor, 1 HP and 2 LP turbine Type Turbofan: National origin: Canada: Manufacturer Pratt & Whitney Canada: First run November 1993 [1] Major applications: Cessna Citation II Bravo Cessna Citation V Encore Cessna 560XL Embraer Phenom 300 MQ-20 Avenger: Number built: 4,600 (May 2023) [2]
The stall zone for the single axial fan and axial fans operated in parallel are shown in the figure. [4] The Figure shows the Stall Prone Areas differently for One fan and Two fans in parallel. [4] The following can be inferred from the graph : For the Fans operated in parallel, the performance is less when compared to the individual fans.
On the LP spool a three-stage turbine drives a single-stage fan and a four-stage LP compressor. The engine made its first flight August 21, 2000 on a test aircraft flown from Plattsburgh International Airport (KPBG), successfully completing a 1-hour-20-minute flight. [ 1 ]
The list price was $12 million in 2011. [26] At the start of its production in 2016, each GTF was costing PW $10m to build, more than the sale price, but should become less than $2m per engine. [27] MTU provides the first four stages of the high-pressure compressor, the low-pressure turbine and other components.
The Williams F107 (company designation WR19) is a small turbofan engine made by Williams International.The F107 was designed to propel cruise missiles.It has been used as the powerplant for the AGM-86 ALCM, and BGM-109 Tomahawk, as well as the experimental Kaman KSA-100 SAVER and Williams X-Jet flying platform.
The axial fan is often contained within a short section of cylindrical ductwork, to which inlet and outlet ducting can be connected. Axial fan types have fan wheels with diameters that usually range from less than a foot (0.3 meters) to over 30 feet (9.1 m), although axial cooling tower fan wheels may exceed 82 feet (25 m) in diameter.
Where noise is an issue, larger, slower-turning fans are quieter than smaller, faster fans that can move the same airflow. Fan noise has been found to be roughly proportional to the fifth power of fan speed; halving the speed reduces the noise by about 15 dB. [22] Axial fans may rotate at speeds of up to around 38,000 rpm for smaller sizes. [23]
This type of fan is used in a wide variety of applications, ranging from small cooling fans for electronics to the giant fans used in cooling towers. Axial flow fans are applied in air conditioning and industrial process applications. Standard axial flow fans have diameters of 300–400 mm or 1,800–2,000 mm and work under pressures up to 800 ...