The 737 APU - The Boeing 737 Technical Site
There are many different APUs available for the 737. The Garrett GTCP (Gas Turbine Compressor [air] Power unit [electrics]) 85-129 was standard for the series 1/200 but when the -300 was introduced it was found that two to three times the energy was needed to start the larger CFM56 engines.
Auxiliary power unit - Wikipedia
An auxiliary power unit (APU), is a device on a vehicle that provides energy for functions other than propulsion. They are commonly found on large aircraft and naval ships as well as some large land vehicles.
131 Series Auxiliary Power Units - Honeywell Aerospace
Honeywell Upgrade For Aircraft Auxiliary Power Unit Lowers Fuel Consumption And Co2 Emissions. Improvements to the 131-9B APU enable more efficient operation and new savings for operators of Boeing 737 aircraft.
Honeywell Upgrade for Aircraft Auxiliary Power Unit Lowers Fuel ...
2023年6月19日 · Honeywell has unveiled a new High-Efficiency Mode (HEM) upgrade for its 131-9B auxiliary power unit (APU) for Boeing 737 aircraft.
BOEING B737: AUXILLARY POWER UNIT (APU) - Blogger
2013年6月25日 · The 737 NG APU is immediately recognisable by the new "eductor" cooling air inlet above the exhaust. This and the new silencer makes the NG APU 12dB quieter than the classics. The eductor works by using the high speed flow of the APU exhaust which forms a …
737 APU - YouTube
A detailed description and history of the various APUs on all generations of the Boeing 737.Contents0:00 Intro2:47 Components5:16 Types of APU13:13 Captions2...
What is APU on Boeing 737? (Auxiliary Power Unit)
2023年7月24日 · The Auxiliary Power Unit (APU) is a vital component of the Boeing 737 aircraft. It functions as an independent power source, supplying electrical power and pneumatic energy during various flight phases. The APU enhances the operational flexibility, reliability, and efficiency of the aircraft.
737-200 Adv APU
APU bleed valve is an electro-pneumatically operated solenoid valve. When electrical load and bleed air extraction combine to raise the EGT above acceptable levels, the bleed air valve will modulate towards the closed position.
Honeywell APU Upgrade for B737s Lowers CO2 Emissions
2023年6月19日 · Honeywell APU Upgrade for B737s Lowers CO2 Emissions. A high-efficiency upgrade for auxiliary power units on Boeing 737NG and Max airplanes can lower fuel consumption and emissions by about 2...
B737 NG APU | PPT - SlideShare
2013年4月22日 · The document provides information about the auxiliary power unit (APU) on the Boeing 737 NG aircraft. It discusses the APU components, operation, controls, limitations and shutdown procedures. The APU supplies bleed air and electrical power when the …