Rimblades Ultra Alloy Wheel Rim Protectors (10 Colour Options - Black)

Product Information

Use alcohol cleaning wipes to wipe any remaining residue from the edge of the wheels. Leave to dry for one minute. Performance predictions were made for FAST-Fan speeds up to the maximum design speed of 15,000rpm, at which the anticipated thrust is 350 N (36kg) and the average efflux velocity 112 m/s (250mph). The initial low speed qualitative testing phase (up to 5,000rpm) has demonstrated that the fan runs quietly and smoothly. This benefit was mainly attributed to two design features: the distance between the rotors provided by the structural stator and the fixed shaft construction which avoids the ‘shaft wobble’ problem inherent with rotating shafts. Initial thrust measurements already indicate that the performance is better than predicted and this is considered to be owing to the effects of thrust induced on the intake lip. The next stage of testing is intended to examine the effects of higher (up to 15,000rpm) and differential rotor speeds on the fan’s performance. Next steps At the heart of the FAST-Fan lies the energiser unit which transfers torque from the motors to the air via the fan blades. There is a finite rate at which energy can be transferred in this way, as governed by Euler’s Work Equation. The pressure rise across the fan is also important because it determines the achievable efflux velocity, which depends on the amount of energy (torque) that can be transferred per swept volume. The energiser unit is therefore optimised to deliver the required maximum amount of energy to the airflow, and the air is entrained in a duct of gradually decreasing volume to achieve the desired pressure rise over the dual fan stages. The closed fan-tips minimise pressure leakages and contra-rotation of the fans ensures that there is no energy lost in efflux swirl as the air flows through the nozzle to generate high-speed thrust. The relative rotor speeds can be independently modulated to control fan performance and in common with turbo-jet engines the FAST-Fan should benefit from ram-effect, especially whilst operating at high speeds and altitudes. Cooling-air enters from vents on the outer surface of the intake and is drawn over the motor windings by the motive flow of the exiting air.

Achieving a low-weight, high-strength and an efficient design was the greatest challenge. From the project outset it was critical to get an accurate prediction of the FAST-Fan’s torque versus speed characteristic, so that the motor circuit design would not be too powerful and heavy for its intended purpose. CFD was used to numerically model the flow through the energiser unit and Motor-CAD and FE (finite element) software was used to model the electromagnetic circuits and analyse the rotor stresses.

Fitting alloy wheel rim protectors

The analysis, design, and manufacture of the bladed rotor presented unique challenges and provided some interesting and unexpected gains. The rim structure gives support to the blade tips which alleviates the bending, torsional and centrifugal stresses that normally concentrate at the root end and hub region of a fan. The dispersion of these stresses, in the bladed rotor, meant that the blade roots could be structurally and aerodynamically optimised and the adverse effects of operational blade deflections avoided. The blade roots were thinned down and there was no need for complicated dovetailing to the hub structure. Earlier attempts at dovetailing both ends of individual blades into the hub and rim structure had been abandoned on the grounds of unnecessary complication. Instead a homogenous bladed-rotor “blotor!” design was created. Rimsavers are predominantly designed for the modern flat rimmed wheels common today, but will fit rims with a very slight curve if they have a sharp or squared off top edge. They are perfect on most Diamond Cut wheel designs.

Wrexham Glyndwr University also welcomes collaborations with industry, universities, and research organisations. This project was funded by the Welsh Government (WEFO) under the SMARTExpertise initiative (Project Reference 82321) and supported by the European Regional Development Fund. When you need to remove Rimblades® products because you have damaged one and need to replace it, want to change the colour or want to remove them completely (on a lease car that is being returned for example) the process is quite simple.

Compressor blade profiles were considered more suitable for this application and fortunately the profile and performance data was openly available. A standard C-Series blade profile was finally selected and, based on this, a low aspect ratio (<1.5) fan blade was developed to ensure maximum energy transfer to the airflow, whilst maintaining a minimal frontal intake area. Bladed rotor (“Bloter”)

If fitting in colder conditions, use a hairdryer to warm the wheel surface to ensure it is free of moisture. Removing Rimblades® Products WGU is keen to participate in this way and has made all of its published research on the FAST-Fan project freely available via the Wrexham Glyndwr University online research repository https://glyndwr.repository.guildhe.ac.uk/.Rimblades® Ultra are best suited to diamond cut & flat faced or flat lipped wheels. As they are rubber based they can cope with a gentle curved edge to the rim. In basic terms, Rimblades® Ultra are a D shaped profile with a fitting guide lip at the top. Conventional civil aircraft use propellors for regional operations to attain speeds of up to Mach 0.6 and altitudes ranging up to 30,000ft but for longer journeys that require higher speeds and altitudes (up to Mach 0.9 and 45,000ft) ducted by-pass fans are used. Both technologies are hub driven with the main propulsive airflow passing over a central energising unit, namely the gas turbine engine, and the propulsive drives being transmitted via rotating shafts.

Leave to cure for at least 24 hours, it can take up to 72 hours before it is completely safe to drive. It is not recommended that you use rim protectors on alloys that are diamond cut or have a lacquer/paint finish. If you’re not sure what kind of alloys you have, ask a local garage or fitting specialist for advice. Fitting alloy wheel rim protectors Self-adhesive rim protectors also come in different types. Depending on the shape of your alloys, some fit alloys with flat edges, while others are designed for rounded and curved rims. Climate Change has resulted from the use of engineered devices and is likely to be solved in this way too. Seemingly the challenges that lie on route to a Net Zero 2050 are surmountable, provided that the aviation community works in a spirit of collaboration and openness.If the Rimblades® won’t bond, the 3M products we use will not be the issue. All Rimblades® will bond strongly unless something is stopping adhesion. The key is fitting to a clean and totally contaminant free wheel surface. We use dry steam to totally clean and decontaminate the rim surface prior to fitting and heat to accelerate bonding time. We have a comfortable waiting area or alternatively have Costa, Subway, McDonalds and a Marston’s pub within a 1 minute walk to occupy your time while we fit your Rimblades®. The new Rimblades® Original are made from Santoprene by Exxon Mobil (appearance of hard rubber) with a micro fine wire core to prevent expansion or contraction due to extreme temperatures. Rimblades® Original have a genuine 3M GTE6208 Automotive grade VHB tape factory applied to the rear side. They are available in 9 colours.