What Are Aircraft Bleed Air Systems?

Posted on May 25, 2021 James Hinds Aircraft

Pilots and aeronautic fans alike may have heard of the term “bleed air,” but what exactly is it? As a byproduct produced during the combustion stage within an aircraft engine, bleed air is hot air that can be redirected and used to aid in various functions of the aircraft. Readily available, this source of energy proves beneficial for the means of enacting temperature control, pressure control, and pressure regulation. Within this blog, we will explain the functionalities of bleed air systems within modern aircraft and why they are important in maintaining key internal and external functions.

Beginning at the engine, bleed air can be redirected into a few general directions. When looking to control the external temperature of a typical aircraft, bleed air can be diverted from the engine with the use of air tubes situated along the edges of wings, engine inlets, and tail surfaces to aid anti-ice systems. However, in turboprop aircraft, icing becomes a more prevalent threat that requires the assistance of a pneumatic boot to keep ice formation at bay.

In regard to temperature regulation and pressurization, without bleed air, all areas of the aircraft would suffer greatly. Such areas include all sections of the cabin, the galley, and may even affect the passengers within. In order to prevent risk to any occupant, pressurized air is first directed from the engine and sent through filters and cooling packs before making its way to the cabin. Although seemingly simple, this process is necessary as without the assistance of pressurised air, we would not be able to breath at standard flying altitudes. As such, cabin temperatures and pressures are typically maintained by systems located within the flight deck.

Like most machinery of their kind, engines do produce waste products and have the capability of failure. Although aircraft engines and their pneumatic systems serve a critical role in maintaining the integrity of in-flight functions and passenger safety, part failure can occur due to a number of reasons. If parts are not adequately maintained, the failure of bleed air functionality can lead to cabin depressurization, loss of system operations, and may potentially lead to hazardous fires. Modern advancements to these components now include a no-bleed system, reducing maintenance costs, improving fuel consumption, and ultimately increasing both reliability and range.

If you are searching for various bleed air systems or aircraft hardware parts, look no further than ASAP AM Spares. As a leading supplier of numerous bleed air system components and various other aircraft hardware parts, we provide qualifying certifications or manufacturing trace documentation for every purchase as applicable. Furthermore, we are the only independent distributor with a strict no-China sourcing pledge, meaning that all of our offered parts come from reliable sources. Due to our quality control and export compliance, we operate with AS9120B, ISO 9001:2015, and FAA AC 00-56B certification and accreditation. If you would like to request a quote for your comparisons, you can submit an RFQ form as provided on our website. Upon receipt, a dedicated account manager will quickly review and respond with a personalized solution to your needs in just 15 minutes or less, 24/7x365.

Recent Twitter Posts

Semiconductor’s Certifications and Memberships

Thank You for Visiting ASAP AM Spares.

If You Ever Need a Quick and Competitive Quote for Aerospace and Aviation Parts, Simply Fill Out the Instant RFQ form. A Dedicated Sales Representative Will Get Back to You In 15 Minutes Or Less.

Request for Quote

We use cookies to ensure that we give you the amazing experience on our website. If you continue to use this site we will assume that you are happy with it.

bottom to top