Thermal Systems Fans Pumps Compressors

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Meggitt Defense Systems Meggitt Defense SystemsThermal SystemsFans Pumps Compressors

Meggitt Defense Systems, part of Meggitt PLC,provides thermal management systems andcomponents used by militaries around the world.In the extreme heat of battle, mission criticalelectronics draw maximum power and generatesignificant heat. Network centric warfare and futureforce protection will continue to exponentiallyincrease the power and functional density of theseelectronics. Due to these increases, additionalheat will be generated on both current and futureplatforms making thermal management a missioncritical system for all manned and unmannedcombat and support platforms and systems.The deployment of affordable, rugged, thermalmanagement systems and cooling solutions formilitary platform electronics, electronics upgrades,and the warfighter, could be the quintessential forcemultiplier that determines victory.

Aerospace FansOur mechanical, electrical & hydraulic driven aerospace fans may be foundon the majority of US armored combat vehicles, helicopters, and a numberof ground based weapon systems. Our aerospace fans are designed forminimum weight, high performance, and maximum efficiency. We designand produce vaneaxial, mixed flow, and centrifugal fans that operate from-65 F – 220 F, at speed between 3,600 – 24,000 RPM, with flows rangingfrom 50 – 23,000 CFM, and with pressure rises from 2’’ – 35” WG. Ouraerospace fans come complete with properly sized integrated AC/DCmotors for 115/200 VAC, 28, 270 and 600 VDC. The fans can also be sizedand linked up to independent AC/DC motors, hydraulic motors, and todirect gearboxes and engine PTO’s.Aerospace PumpsWe have many years’ experience producing high-performance aerospacepumps. Our design process considers all aspects of the application beforeforming an integrated solution resulting in maximum flow and pressureincrease for a given volume and weight. We have a wide variety of lubricationand cooling pumps on aerospace, land, and sea applications. Our aerospacepumps have been produced in a wide variety of configurations, ranging fromgerotors to centrifugal pumps with various drives. Drive methods include theuse of AC induction, brushless DC, and direct shaft drive. Meggitt aerospacepumps are found on many platforms, such as the Apache AH-64, OspreyV-22, Eagle F-15, and LCAC. Meggitt is developing pumps for various FutureCombat Systems (FCS) vehicles for aerospace, land, and sea applications.CompressorsOur compressors are lightweight, durable, high-performance reciprocatingmachines with integrated components. They employ a unique “keystone”cam which eliminates multiple crankshaft journals for a compact anddynamically-balanced design. They are used in a number of high-pressurepneumatic applications such as pneumatic systems on military andcommercial aircraft, land and ocean-based weapons systems and supportequipment.

M1A2 SEP Thermal Management SystemThe Thermal Management System (TMS) is designed toremove the excess heat produced by modern electronicequipment employed in today’s ground combat systems.The TMS also ensures that crew combat performance is notdegraded due to heat stress.The modular design was developed to maximizethe flexibility of the TMS and to limit its intrusioninto the Abrams fighting compartment. A VaporCompression System Unit (VCSU), which housesthe hydraulically-driven refrigeration equipment,is mounted in an armored container located in the left corner of theturret bustle rack. The VCSU connects to the Air Handling Unit (AHU) byarmor-protected tubes that deliver cooled propylene glycol and water.The AHU in turn provides more than two tons of cooling via a bulk airdischarge into the crew compartment. Designed for the M1A2 SEP tank,the TMS is readily adapted to other ground combat systems.Auxiliary Cooling and Power SystemThe Auxiliary Cooling and Power System (ACPS)is designed to thrive in modern combatenvironments. It provides cooling for crewcomfort and electronic packages in additionto auxiliary power. The ACPS is a rugged, selfcontained system ready for todays’modern fighting vehicles. The ACPSconsists of three major components,the Auxiliary Cooling and PowerUnit (ACPU), the Air Handling Unit(AHU), and a Control Module.The ACPU is a rugged selfcontained cooling and power unitthat is located on the exterior of thevehicle. On the M1 Abrams, the ACPU is mounted on the turret bustlerack. The unit contains a refrigerant based liquid cooling system and28 VDC power generation system driven by a heavy-fuel based engine.The AHU consists of a 28 VDC electrically driven fan and liquid-to-airheat exchanger. The AHU provides conditioned air to crew as well aselectronics inside the vehicle.

M9 ACE NBC Microclimate Cooling SystemThe Microclimate Cooling System (MCS) isa self-contained Vapor Cycle System (VCS)that cools and ventilates the MOPP IVNBC protective vest and face mask of theoperator of the armored tracked combatengineering vehicle, the M9 Earthmover.It provides both heat, ventilation or coolingwhile maintaining NBC and environmentalprotection. The MCS is designed to MIL-STD-810 and is thus able towithstand the tracked vehicle’s severe shock and vibration. The Centricipmain ambient air intake filter provides up to 96% dust efficiency forcooling and condenser heat sink air.F/A-18E/F IRST Environmental Control UnitUnder contract from Boeing, Meggitt DefenseSystems is developing the Environmental ControlUnit (ECU) for the Super Hornet’s new InfraredSearch and Track (IRST) capability. The ECUprovides up to 1.7 kW of cooling for the podmounted Infrared Search and Track sensor and itsassociated signal processing electronics. The IRST ECU meets the severeenvironmental demands of the aircraft carrier and the supersonic speedof the Super Hornet.C-130 AMP Environmental Control SystemUnder contract from Boeing, MeggittDefense Systems has developed theVapor Cycle System for the C-130 AvionicsModernization Program. The ECS cools theflight deck and cargo bay using a 90cc semihermetic scroll compressor providing coolingof 12 - 14.7 kW. The system is designed tomeet MIL-STD-810F environmental testing.Our COTS automotive-based compressorshave been demonstrated extensively inground combat vehicles, and chosen by ourcustomers for performance and affordability.

Pathfinder Environmental Control UnitThe F-16 Pathfinder Pod EnvironmentalControl Unit (ECU) is very compact,extremely lightweight, and capable ofproviding electronic thermal managementthroughout the flight envelope of highperformance aircraft such as the F-16. The ECU supplies 1.0 kilowatt ofcooling in a package that is 9.75 inches in diameter, 26 inches in length,and less than 60 pounds in overall weight.ALMDS Environmental Control SystemThe Environmental Control System (ECS) for theAirborne Laser Mine Detection System (ALMDS)Program provides up to 4.0 kW of cooling capacityin a package that is 19 inches in diameter, 19inches in length, and weighs less than 135 lbs.It is designed to maintain and control precisefluid temperatures over the entire spectrum of the helicopter’s harshoperating environment and is specifically designed to withstand thesevere salt-water marine operational environment.P-8 Poseidon Forward ArrayNow in Low Rate Initial Production for Boeing, theForward Array Cooling System (FACS) is a verycompact unit for cooling sensitive antennae onthe P-8 Poseidon. Run on 28 DC aircraft power,the reservoir/pump/controller and heatsinksubsystems reside on the Poseidon’s flight deck,while the antenna’s cold plate is close-coupled tothe antenna outside of the pressurized fuselage.Liquid Cooled Rack SystemThe Liquid Cooled Rack System (LCRS) containsand controls the environment for a set of CircuitCard Assemblies (CCA) for use in military aircraft.The LCRS provides structural support and EMIshielding for the CCA housing, and providesthermal management to CCA’s with a maximum heat generation of 3,400watts, while maintaining the chassis wall temperature of 20 C to 50 Cduring normal operation. The LCRS chassis, with its modular design, caneasily be adapted for use in airborne or ground military applications.

Large Airborne Vapor Cycle System 64kWThe Large Airborne VCS/LCS areself-contained subsystems that coolsethylene glycol/water (EGW) coolant.This cooling can take place either byrejecting heat directly to ram air whenpossible, or by running one or bothconventional vapor cycle systems whenit is necessary to cool the EGW belowthe temperature of the ram air.The Large Airborne VCS/LCS contains a pump to circulate the coolantand a closed system type accumulator to accommodate the thermalexpansion of the coolant. The Large Airborne VCS/LCS is also equippedwith a ground fan and two internal ram air doors to either select theground fan or bypass most of the ram air for airborne operation.The system is equipped with a myriad of sensors and a digital controllerrunning MDSI’s proven cooling system control software. This electronicspackage monitors the health of the system and continues to operateon a best effort basis even in the event of a failed component. Multiplesensors and multiple vapor cycle systems provide a substantial degree ofredundancy.Meggitt’s innovative liquid palletized solution provides essential coolingto mission critical equipment and sensors, ensuring safe flight operation.This is just one of many thermal management products Meggitt suppliesto the P-8A and other military aircraft.Compact Vapor Cycle System 17.2 kWMeggitt Defense Systems has designed, developedand delivered a Compact Vapor Cycle System (CVCS)for an unmanned application.The CVCS is a fully qualified Vapor Cycle System(VCS) that provides 17.2 kW of cooling power. TheVCS provides conditioned Polyalphaolefin (PAO) forthe Liquid Cooling System by means of an R-134aVCS. The CVCS contains a proprietary solid state electronic controller,evaporator, filter/dryer, electric expansion valve, and compressor unit,and along with a separate condenser provides 17.2 kW of cooling power.

Meggitt Defense Systems9801 Muirlands BoulevardIrvineCalifornia92618 USATel: 1 949 465 7700Fax: 1 949 465

The Thermal Management System (TMS) is designed to remove the excess heat produced by modern electronic equipment employed in today’s ground combat systems. The TMS also ensures that crew combat performance is not degraded due to heat stress. The modular design was developed to maximize the flexibility of the TMS and to limit its intrusion into the Abrams fighting compartment. A Vapor .

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