An air cycle machine (ACM) is the refrigeration unit of the environmental control system (ECS) used in pressurized gas turbine-powered aircraft. Normally...

Thermodynamic heat pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems...

The Brayton cycle, also known as the Joule cycle, is a thermodynamic cycle that describes the operation of certain heat engines that have air or some other...

air-to-air heat exchanger cooled by the cold outside air. It is then fed to an air cycle machine unit that regulates the temperature and flow of air into...

737 cooling turbines in the early and mid-1960s. Garrett AiResearch air cycle machine foil bearings were first installed as original equipment in 1969 in...

differentiates a Stirling engine from other closed-cycle hot air engines. In the Stirling engine, a working fluid (e.g. air) is heated by energy supplied from outside...

uses the same refrigeration cycle but incorporates both the evaporator and the condenser into the same air path; the air first passes over the evaporator...

The Atkinson-cycle engine is a type of internal combustion engine invented by James Atkinson in 1882. The Atkinson cycle is designed to provide efficiency...

basic operation of the gas turbine is a Brayton cycle with air as the working fluid: atmospheric air flows through the compressor that brings it to higher...

pack Pack (aircraft), P.A.C.K (Pneumatic Air Cycle Kit), a kit containing an air cycle machine that provides air conditioning as part of an aircraft's environmental...

The Air Force Life Cycle Management Center (AFLCMC), headquartered at Wright-Patterson AFB, is one of six centers reporting to the Air Force Materiel Command...

pylons, landing gear, horizontal stabilizers, cabin, cabin air system, air cycle machine, bleed air system, and a new fly-by-wire system. The E2 is exclusively...

compressed air via a heat exchanger and air cycle machine known as a PAC (Pressurization and Air Conditioning) system. In some larger airliners, hot trim air can...

combustion engine versions of these cycles are, by their nature, not reversible. Refrigeration cycles include: Air cycle machine Gas-absorption refrigerator Magnetic...

volume of air below the hull, or air cushion, that is slightly above atmospheric pressure. The pressure difference between the higher-pressure air below the...

A four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft...

The primary component for the functioning of the cold air unit (CAU) is the Air Cycle Machine (ACM) cooling device. Some aircraft, including early Boeing...

the wash cycle. This access door is locked shut with an interlocking device during the entire wash cycle, since opening the door with the machine in use...

The water cycle (or hydrologic cycle or hydrological cycle), is a biogeochemical cycle that involves the continuous movement of water on, above and below...

The Stirling cycle is a thermodynamic cycle that describes the general class of Stirling devices. This includes the original Stirling engine that was invented...

cooled, compressed and reused (closed cycle), or (less commonly) dumped, and cool fluid pulled in (open cycle air engine). "Combustion" refers to burning...

Recently, machines exclusively designed for this purpose have been developed. In Chile, the manufacturer EcoPac Systems developed a cycle optimizer able...

useful mechanical work. The term "hot air engine" specifically excludes any engine performing a thermodynamic cycle in which the working fluid undergoes...

to as "aqua ammonia") 1862 – Alexander Carnegie Kirk invents the Air cycle machine 1864 – Charles Tellier patented a refrigeration system using dimethyl...

they are washed in the washing machine. Many dryers consist of a rotating drum called a "tumbler" through which heated air is circulated to evaporate moisture...

part of the Air Force Life Cycle Management Center, one of six centers under Air Force Materiel Command (AFMC). The Air Force Life Cycle Management Center...

A combined cycle power plant is an assembly of heat engines that work in tandem from the same source of heat, converting it into mechanical energy. On...

However, the air cycle machine is very common on gas turbine-powered jet aircraft as cooling and ventilation units, because compressed air is readily available...

cycle, or in a free cooling system that uses pumps to circulate a cool refrigerant (typically water or a glycol mix). It is imperative that the air conditioning...

In engineering, the Miller cycle is a thermodynamic cycle used in a type of internal combustion engine. The Miller cycle was patented by Ralph Miller...