The merging of the pumps is done internally. Block-off plugs are included for configurations that require less than three primary pumps. All of the fuel pumps that Radium offers with the FCST have built-in check valves to prevent back-flow.
The new larger vent port allows air to escape faster for quick filling applications. This larger vent port also meant a new roll-over protection valve needed to be designed. A roll-over protection valve installs into the vent port and prevents fuel loss should the vehicle ever become inverted.
It was decided that the new valve should not only offer roll-over protection, it should also prevent fuel loss in the event the fuel cell is over-filled. First, it shuts off flow if inverted. And second, it contains a floating ball that seals the vent should the fuel level rise high enough, preventing fuel loss through the vent port. Another advantage to the new DSV compared to the previous roll-over protection valve is that it can be removed easily without the need to separate the top plate from the fuel cell bladder.
This valve is to be used Untitled - Radium - Attract - A Special Limited Mix (CDr) standard filling only not quick fill dry-break systems. Radium will introduce a high-flow DSV variation that will be suitable for quick-fill systems at a later date. It is well known that Subaru engines are prone to excessive blow-by, creating a collection of oil and other contaminants in the intake system and intercooler.
Do you ever see blue smoke in the rear view mirror? Shown above is a Subaru valve cover vent crossover pipe that is almost completely clogged with oil residue and carbon build-up. Radium Engineering Solutions 1. Dual Catch Can Kit For street driven or lightly modified vehicles, a simple oil catch can system will often do the trick.
Radium Engineering has utilized its compact catch cans to created an integrated package for installation into various Subaru engine bays. The catch cans are designed to collect and retain the oil and other contaminants, preventing them from being cycled back through the engine's air intake and intercooler system.
This catch can filters and cleans the gasses before they are drawn into the intake pipe. It is responsible for keeping blow-by oil and other pollutants out of the turbo inlet pipe, turbocharger, and intercooler during high engine loads.
The rear catch can intercepts the vacuum hose between the intake manifold and PCV valve. This catch can keeps oil and sludge out of the intake manifold. It functions when the engine is in vacuum and the PCV valve is open. The PCV system dynamically changes depending on the throttle body position.
See below: As shown above, when the throttle is closed, the one-way PCV "check" valve opens. When the throttle is open, the PCV valve closes and all the crank venting is happening through the valve cover vents. The air being sucked in by the turbocharger helps create negative pressure in the intake pipe, which then results in a mild vacuum to the crankcase vent catch can, to help draw out the gasses.
In all engine load scenarios, the PCV system promotes negative pressure in the crankcase that can extend engine life. With the kit mounted in the area of the turbocharger, protection from heat is accomplished with a modular heat shield shown above. This is necessary to keep the temperature of the catch cans down and help promote condensation of water vapor inside the catch cans where it is collected along with oil and unburnt fuel.
The catch cans should be periodically checked Untitled - Radium - Attract - A Special Limited Mix (CDr) the dipsticks and drained as needed. To dispose the fluid, simply remove the 4 heat shield mounting bolts with a 3mm Allen wrench.
The lower half of the catch can bodies unscrew for easy servicing. Always properly dispose of the contaminants. Do not pour catch can contents back into the engine oil. Air Oil Separator AOS Kit With a higher engine power output comes an increase in oil circulating through the crankcase ventilation system. Horizontally opposed engines, in particular, expel an excessive amount of oil through the ventilation system.
In extreme cases, this may overwhelm the capacity of the standard sized catch cans during long track sessions. Instead of using a large reservoir to retain all the collected contaminants, the oil can be returned to the pan.
However, this process must take into account several considerations in order to function properly. Full CNC construction, sealed with O-rings and anodized.
The AOS still features all of the same oil baffling media found in the competition catch cans. The bottom plate not only features a large oil return port, it also functions as a heater to prevent water from condensing inside the can.
The cooling fins, shown above, increase the effective surface area of the heating element. Also, if any water were to make it's way into the canister, it would be trapped underneath the lower density oil in the bottom trench. The center port baffle provides a layer of protection to keep debris from enterning the crankcase, Untitled - Radium - Attract - A Special Limited Mix (CDr). For AOS crankcase plumbing, the valve cover vents are routed into the top inlet where the stainless steel condensing material separates the oil from the gasses.
The PCV valve is removed and the system is no longer hooked up to the intake manifold vacuum. The AOS completely disassembles for easy servicing when needed, as shown above.
Because of limited vertical clearance, special low-profile banjo style fittings were developed for the Subaru AOS kit. These fittings are super compact, yet high flowing. They are machined from aluminum and anodized. Radium installation kits include all necessary parts for an easy bolt-in process. Shown above is the AOS system fully assembled with a Subaru specific mounting bracket and fittings.
When installed, the valve cover vent lines "Y" together and are plumbed into the top port of the AOS can. The side port is used as the vent to atmosphere VTAor it can be routed to the turbo inlet pipe for a closed system. This line acts as a way for crankcase gasses to enter the AOS, but also functions as the path for oil to return back to the oil pan.
Contact info radiumauto. These products are designed to improve the driveability and performance Untitled - Radium - Attract - A Special Limited Mix (CDr) the WRX without sacrificing reliability. Login to view this information. Login to view past directors.
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In fact, the instructors sometimes swallowed some of the paint to show it was harmless. It has been estimated that a dial painter would ingest a few hundred to a few thousand microcuries of radium per year. While most of the ingested radium would pass through the body, some fraction of it would be absorbed and accumulate in the skeleton.
Later on, Robley Evans would establish a maximum permissible body burden for radium of 0. As a result of the ingestion of the radium, many of the dial painters developed medical problems of varying degrees of severity. The first deaths occurred in the mid s, and by the practice of tipping the brushes seems to have ended. It does not emit gamma rays. For a short time during the s, tritium containing gas tube light sources GTLS were used to backlight liquid crystal display LCD watches.
The sealed tubes, made of borosilicate glass, were 0. The inside wall of the tube was coated with the luminescent material while the tritium was present as a gas. I don't have much information about the activities in these watches but it seems that they range from about 25 to mCi.
When incorporated into radioluminescent paint, much lower activities 2 mCi are employed. The tritium, which is really hydrogen, is incorporated into a polymer that also contains the luminescent material usually ZnS. The dose to wearers of tritium-containing radioluminescent watches is due to the leakage of tritium from the device and the tritium then being absorbed through the skin.
The betas emitted by tritium are of too low an energy to penetrate the watch case and contribute to the dose. Measured leakage rates from watches employing tritium containing paint were up to 83 nCi 0. The typical release rate from watches using tritium Untitled - Radium - Attract - A Special Limited Mix (CDr) in glass tubes e.
As such, the H-3 activities in GTLS might be higher than those in paint, but the resulting doses are somewhat lower.
This equates to 0. The latter dose not only applies to the wearer of the watch, it also applies to anyone in the same room as the wearer of the watch. Assuming that the watch employed 2 mCi of tritium in paint, Untitled - Radium - Attract - A Special Limited Mix (CDr), and that the watch was worn 16 hours per day, the average dose to the 10 cm 2 of skin in contact with the watch was calculated to be mrem.
This can be converted into an effective dose equivalent essentially a whole body dose of 0. The effective dose equivalent due to the tritium in the general room air was essentially the same, i. The total effective dose equivalent to the individual wearing the watch would therefore be 0. It emits a gamma ray at keV in a small fraction of its decays. The Pm, mixed together with ZnS in a polymer paint, is either an insoluble oxide or is incorporated into ceramic microspheres.
For a watch or clock containing Pm, the activity is approximately 0. The dose to an individual from a Pm containing timepiece is due to the emission of Bremmstrahlung and gamma rays.
The low energy beta particles cannot penetrate the case. According to NUREG, a person continuously wearing a watch containing the maximum allowable level of Pm would receive less than mrem to a small area of skin on the wrist and less than 1 mrem to the gonads.
NUREG also calculated the effective dose equivalent to the wearer of a Pm containing watch using two scenarios. In one, the effective dose equivalent was estimated to be 0.
In the other scenario, the estimated effective dose equivalent was 0. The estimated effective dose equivalent to a homeowner due to a clock containing Pm was 0. For the purpose of these calculations, the activity was assumed to be uCi per timepiece watch or clock.
Nevertheless, in the early s the U. Sr is a pure beta emitter although there can be substantial bremsstrahlung production with a 30 year half-life. The high energy betas associated with Sr are actually produced by its short-lived decay product, Y Sr and Y are almost always present together in the same activities i. Strontium had three major advantages over radium: a greater variety of luminescent colors were possible with strontium than radium, the gradual decrease in luminous intensity was minimal because strontium's beta particles did less damage to the zinc sulfide crystals that radium's alpha particles, and the photon bremsstrahlung emissions from strontium were less of a safety concern than the gamma rays from radium.
The Use of Radium in Consumer Products. MORP Arthur Keane. Radio-active Luminous Paints. Scientific American Supplement. Ed Landa.
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