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Parker Aerospace’s Fluid System Division has a long history of supplying fuel pumps to both the civilian and military aviation markets. Detailed analysis and testing, combined with extensive hours of field operational experience, ensure our off-the-shelf pumps provide a proven, low-risk, and cost-effective solution for aircraft fuel system design.
Whether a fuel system requires a boost or transfer pump, each design within Parker’s product-line family has unique features and can be fully customized to meet specific operational requirements for fuel type, delivered flow, inlet/discharge pressures, and temperatures (fluid and ambient). Variations in mounting configuration, available electric drive power, and allowable installation weight can be accommodated to provide a fully customized solution if an existing design is not satisfactory for any new or retrofit applications. All pump models are designed to the requirements of MIL-STD-704, MIL-STD-810, ARP-5794, and RTCA DO160.
Parker Aerospace fuel pumps typically perform two functions within the fuel system. A “boost pump” supplies pressurized fuel from the main supply tank directly to the engine. A “transfer pump” moves fuel from one tank to another to maintain the center of gravity of the aircraft and to ensure the primary tanks remain full during flight. Pump selection is based on the requirements for delivered flow and pressure, as well as the available electric power system of the aircraft. To supply the optimal off-the-shelf solution, any specifications associated with a new application should be sent to Parker so the best available option can be selected and presented to the customer.
Designed for general aviation, business jet, and rotor aircraft, these brushed pumps run on a 28 VDC power system and perform both the boost and transfer functions in the fuel system. The direct-drive motor features carbon brushes that power a wound armature shaft. Hydraulic elements include centrifugal and vane assemblies. Pump mounting arrangements are tank submerged (wall and floor), in-line (outside the fuel tank), and cartridge/canister (wall and floor mounted with the pumping element removable without draining fuel from the tank).
Designed for civilian and military aircraft, these brushless pumps run on a 28 VDC power system and perform both the boost and transfer functions in the fuel system. The pump is powered by a brushless DC drive system that consists of a permanent magnet motor and an analog electronic controller. Hydraulic elements are centrifugal assemblies. Pump mounting arrangements are tank submerged (floor), and cartridge/canister (floor mounted with pumping element removable without draining fuel from the tank).
Designed for military aircraft, these brushless pumps run on a 270 VDC power system and perform both the boost and transfer functions in the fuel system. The pump is powered by a brushless DC drive system that consists of a permanent magnet motor and a digital electronic controller that runs on configuration-controlled software. Hydraulic elements are centrifugal assemblies. Pump mounting arrangements are tank side-wall (bracket) mounted.
Designed for regional jets, rotor aircraft, and military aircraft, these pumps run on a 200VAC (L-L), 400 Hz constant frequency power input and perform both the boost and transfer functions in the fuel system. The electric drive is a classical induction motor with a copper-wound stator and squirrel-cage rotor. Hydraulic elements include centrifugal and gear assemblies. Pump mounting arrangements are tank submerged (wall and floor), in-line (outside the fuel tank), and cartridge/canister (wall and floor mounted with the pumping element removable without draining fuel from the tank).
Designed for small and large commercial transport aircraft, regional jet, and military aircraft, these small frame and large frame pumps run on a 200VAC (L-L) and 400 VAC (L-L), variable frequency power input (360 to 800 Hz) and perform both the boost and transfer functions in the fuel system. The electric drive is a classical induction motor with a copper-wound stator and squirrel-cage rotor. Hydraulic elements include centrifugal assemblies. Pump mounting arrangements are tank submerged (floor), and cartridge/canister (wall and floor mounted with pumping element removable without draining fuel from the tank).
Parker Aerospace is increasing its production capability to supply fuel pumps to every market segment, from general aviation to military and large commercial transport. Our FSD-Elyria, Ohio, facility works with numerous key sub-tier companies to form a solid supply base, coupled with fabrication, assembly, and test facilities to supply every customer with products from small to large order quantities. Parker is committed to keeping pace with our customers’ needs.
For more information about Fuel Systems Division fuel pumps, please visit the Parker Aerospace off-the-shelf product page.
This post was contributed by senior principal engineer Bill Heilman of the Parker Aerospace Fluid Systems Division.
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Chvalis is an expert on delivering turnkey solutions according to rail manufacturer's specifications, including delivery, installation and commissioning. Chvalis has been using Parker's products since 1992 in its systems for their unmatched quality, reliability and security. Components also meet the most demanding certifications. In the railway industry, Chvalis is the holder of the Certification of Technical Competence of the Czech Railways supplier and the SŽDC Supplier's Certificate.
Thanks to its extensive network of local branches, which are always associated with the ParkerStore service and ParkerStore sales hydraulics and tires, Chvalis is able to provide rolling stock operators 24-hour warranty and post-warranty service. The ParkerStore retail locations are fully equipped for the production of hydraulic hoses and are certified by the "ParkerStore Hose Certification Workshop."
Until 2013, Chvalis supplied hydraulic systems only for auxiliary drives, such as compressor drives for compressed air production; the drive for the combustion engine cooling fans and the electric alternator drive for the production of electric motors. In 2013, the company received a call for a comprehensive design and solution for the supply of a complete hydraulic traction drive, including auxiliary drives for 35 units of MUV series 74.02 001-035 series, for CZ LOKO, the manufacturer and supplier of Czech Railways - SŽDC.
Chvalis has developed a technical solution for its own drive - an unconventional way of using its own innovative, open-circuit hydraulic system instead of competing with a preferred closed circuit. The system, while technically more demanding, precisely and comfortably addresses all the requirements of all traction control conditions controlled by the parent electronic control system of the vehicle. In addition, the circuit allows for hydraulic braking, which was used for the cruise control system. This makes the work of the drivers more efficient and saves the cost of the vehicle operators, reducing the wear of the brake discs of the standard pneumatic braking system of the vehicle. The standard brake is used most of the operating time, using this circuit for braking, until the vehicle stops.
Hydraulic circuits are built using the Parker product portfolio, including Ermeto E02 pipe systems and hose systems from certified hoses for rolling stock. These hydraulic circuits, mainly PV-plus piston control pumps in conjunction with the F11, F12, F1, F2, and F14 hydraulic motors of the V14 series, deliver a minimum fault, provide high reliability and long service life.
Thanks to previous experience with the 35-piece MUV74.02 series, Chvalis was asked by CZ LOKO's customer for the design and delivery of a complete hydraulic traction drive and auxiliary drives for a new series of 50 MUV 75.00 Universal Motor Vehicles. This new unit had the requirement to maintain the same hydraulic traction drive that has proven itself in the past series. In addition, the requirement to increase the hydraulic proportional brake power and increase the number of auxiliary hydraulic circuit circuits has been accepted: hydraulic hand, grass mower, hydraulically independent trolley tipping system, and suspension lock.
After the demanding testing of the first prototype in December 2017, the production of a 50-piece series of cars was launched in January 2018, again using the innovative Chvalis hydraulic system with proven hydraulic components from Parker.
InnoTrans is the leading international trade fair for transport technology and takes places every two years in Berlin, Germany. Sub-divided into the five trade fair segments Railway Technology, Railway Infrastructure, Public Transport, Interiors and Tunnel Construction, InnoTrans occupies all 41 halls available at Berlin Exhibition Grounds. The InnoTrans Convention, the event’s top-level supporting programme, complements the trade fair.
A unique feature of InnoTrans is its outdoor and track display area, where everything from tank wagons to high-speed trains is displayed on 3,500 metres of track. Visit Parker at Booth 206, Hall 10 or learn about our innovations to keep you on track on our solutions page.
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Sealing can often be a frustrating challenge when dealing with flow batteries. Determining what materials are compatible with certain chemistries or developing a profile that provides optimal sealing under available compression can be a time-consuming task for those outside the sealing industry. A trial and error approach can have a significant overall cost impact through multiple prototype iterations, prolonged testing, and ultimately, delaying product commercialization.
Parker’s design and material engineers can provide support to your team in the critical, early stages of product development. With hundreds of engineered elastomeric materials to choose from, our team can identify and recommend a compound that works with your specific electrolytes or other fluids. With the exceptionally long lifetime requirements of flow batteries, our homogeneous rubber provides the elasticity needed to handle the many charge-discharge cycles the battery will see in its life.
Our engineers can significantly reduce design time by utilizing finite element analysis early in the process. FEA is a sophisticated computer modeling program that demonstrates a visual simulation of how materials for a proposed seal design might perform in the application. Material performance over a range of conditions is tested to see if the product will perform as expected. FEA can be repeated as many times as needed to fine-tune the design and make the final product as robust, functional, and reliable as possible. This process can be performed before prototyping, mold design or production is undertaken, greatly reducing the possibility of errors or redesign issues occurring later.
With continuous advancements materializing in the energy storage market, we fully understand the urgency of moving a product from development to commercialization. Parker can provide your team with resources to improve both the quality and speed of seal design in the critical prototyping stage, reducing overall cost.
After commercialization, Parker’s O-Ring & Engineered Seals Division can support your high volume production utilizing one of our 14 manufacturing locations dedicated to molding and extruding elastomeric products. To ensure the highest levels of material quality, state-of-the-art laboratories and testing equipment are housed in our two North American technology centers.
For more information, visit Parker O-Ring & Engineered Seals Division online and chat with our experienced applications engineers.
This article was contributed by Wesley Burcham, market manager, Parker O-Ring & Engineered Seals Division.
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