. That led to thieves learning how to manipulate pumps and payment systems, he said, and that practice has become more common as gas prices have risen. The design used an Intel 80188 (186 for embedded designs), with 64K and a beautiful blue florescent graphical LCD screen. The big corporate gas guys, theyre arming up, Denton said. In the 50s I worked at a Hancock service station. But before electronics made its way into consumer products, there were a lot of very clever mechanical devices in the world, because there was no other option. The diaphragm inside the handle expands because ambient air pressure (which enters through the small safety tube hole at the tip of the spout) is higher than the low pressure fuel area created by the Venturi effect. As far as additive, I have as a driver had to manually add the BP additive when the injector at the rack was not operating. Mine had a spider who crawled around the pitot tube cover which you put on while in the hangar and built a nest which didnt cause problems until mostly down the runway on takeoff (yikes). I dont know whether they are still used in gas pumps. This diesel fuel in the cylinder can also seep past the piston rings into the oil crankcase, diluting the lubricating oil. That might be why blender systems are only used where there previously werent a big selection originally, and its financially a really dumb idea to add a extra tank. The fire will plug the holes in the catalyst, destroying it and leaving you with a repair job well into the four-figures. I managed a gas station from around 1992 thru 2007, in the beginning there were 3 gasoline tanks, reg, mid or plus and prem, the mid or plus was blended in the tank at usually 60% prem and 40% reg. Such stores tend to have only a handful of employees working at a time, unlike major chains that can employ security staff and better surveillance equipment, Denton said. And Green Shield stamps, or the pink ones. Is it possible that this differs by state or region? The trucks usually have a few different compartments. I did a google search and the USGS.gov website says that water at the bottom of the ocean is under about 150 times the pressure of the atmosphere and is only about 1% denser as a result. Like you pointed out, most trailers have multiple compartments, with the bigger ones usually having 5-6 compartments of differing sizes capable of holding up to a total of 11,000 gallons or so. I think the term Bowser usually refers to the King of the Koopas nowadays. For example, if one valve is at 100% the other is always at 0%. In some parts of the world, a gas pump is sometimes called a bowser, although in the United States that term usually means a fuel truck for aircraft. This is going to cut your power and performance considerably. It gets people to say Where do we save money? When you buy gas in bulk, the amount is usually compensated for temperature and some countries, like Canada, have done this at the retail level, too. At that time all leaded gas. Theres really nothing like gas prices to get people to think about budgets. Some stations had older nozzles that were also of smaller diameter and would fit through the restrictor plates, and attendants would regularly offer to fill my new car, which had a cat, and the warning sticker, and the restrictor plate, with regular leaded gas. When Candido Rodriguez received a Notice of Approval from the Department of Economic Opportunity in March, the Tampa construction worker was convinced his year-long wait for benefits was finally over. Lots of safety features at the pumpscrash valves at ground level that snap shut to prevent flow should a collision occur, Intrinsically Safe electronic controls that prevent sparks (prevent igniting vapors), etc. The Bowser company went on to manufacture mechanical meters as well. If you are interested in the Venturi effect, you can make3D printed Venturi tubes. https://en.wikipedia.org/wiki/2000s_energy_crisis Only a couple of stations are even left with mid grade straight product and are quickly being retro fitted to allow for an e-85/ bio-diesel #2 split tanks. So it BECAME a nanny state thing. It gets annoying when all the pumps start playing the same commercial but each with a 1 sec delay. All of the blending was done at the pipeline or refinery though, and each station had a separate tank for each grade of product that they carried. Next time you are pumping gas, youll have something to think about. Some high performance motors need high octane to properly work (most direct injection ones), but it doesnt mean they will have better mpg with higher than specified octane rating. By using our website and services, you expressly agree to the placement of our performance, functionality and advertising cookies. Any slow response time would probably be due to waiting on hardware to reset, or talking to the credit card network. ORLANDO, Fla. A handmade device powered by two 9-volt batteries is being inserted into diesel fuel pumps by organized gangs across Florida, allowing them to pay 5 cents a gallon for the high-priced fuel, according to members of the Orlando Cyber-Fraud Task Force. Some old aircraft have an external venturi tube thats used to power some instruments via the air pressure differential created by the tube. Modern dispensers have their own internal network with outward facing IP addresses to provide high speed card processing at the pumps. I mean, literally, word for word. Okay, but a) the current through one of these switches is directed one of two ways, b) in a system using two if these switches, there are four possible states, so by your argument it should be four way, c) what are the three ways these can be set? Protip: See the buttons around the screen? Most American gas stations use pumps from one of two manufacturers: Wayne Fueling Systems or Gilbarco Veeder-Root. They dont even use the same RS-485 comm links. Another weird incident was when I was at a site where we were testing cash acceptors. Non-ethanol gas stores better in a humid environment. Ive been the parts and equipment buyer for over 20 yrs. There are a surprising number of places where the electric pump is in the underground tank. Oh, I see. As a result, we dont see a lot of complex mechanical devices these days. Just one device can steal an estimated $2 to $3 million in diesel fuel in just one year, according to Fuentes. They are notorious for freezing shut with ice, therefore most have heaters. But this was in Texas, so not as many botique blends to keep track of, and I only ever remember it being done for retail sites. Just the handle alone has some 10 safety related features, from stopping the flow when you let it fall out of your hands, and a valve that prevents people from draining the whole hose while nobody is looking just to name a few. could usefully use the higher octane rating to run more efficiently (thats the selling point of the high-grade fuels sold in the UK/EU) thus saving the extra cost. This is accomplished with a blend valve. Ive also had to add additives manually for the same reason. Thx. Gasoline is difficult to meter accurately. And yes, Im just messing with you. I live in Oregon, one of the few places where consumers are not allowed to pump their own gas, so no ads on the fuel pumps here. Yeah, I caught that. Since when does a truck driver know the inner-workings of a gas pump? The thing we call a gas pump is in fact a gas dispenser. We have programs and policies in place to monitor our marketplace for items thatencourage illegal activityand work with regulators to remove items when patterns of abuse or criminal behavior are reported.. I always heard what JohnU says. But its possible the other way round: 5 filling manholes and only gas (95 oct) and diesel for sale. And to be clear, this was 1980, not 1940. He had noticed workers had to fill barrels one at a time so as not to overfill and was inspired by the operation of a toilet to come up with an automatic valve. They are substances with zero shear modulus, or, in simpler terms, substances which cannot resist any shear force applied to them.. I would have to disagree with your comment on blending I install blenging dispensers weekly so I know for sure that we make the mid grade on site more often than not. Best of my knowledge all aircraft have them, not just old ones. Man, turn off the billionaire progaganda sometime. The 3 way switch redirects where the electricity will travel to. Either at the terminal or at the point of delivery, special additives are mixed in with the gas. Andrew wrote a reply on project log New CIS sensors bought on internet, let's HACK! The manipulator fools the pulser, allowing thieves to pay pennies on the dollar for diesel fuel and then sell it on the black market at deep discount prices. I dont think this blended thing has ever been an option in the U.K. We just got lead, no lead, or diesel. For us, those products were also blended at the rack, and they would use a separate tank for that grade. Most of it is pretty easy to figure out. Kevin Collier is a reporter covering cybersecurity, privacy and technology policy for NBC News. I mean, of COURSE the pressure would be lower past the restriction! mac012345: Your source for this? At the core of it all are large underground tanks that hold the gas. However, there is usually no mid-grade gas. It has been at $8.25. Install and repair stations. Yes, there a lot more amazing things involved in the whole fuel delivery system. They use to use mechanical blenders way back but not anymore. The first exploits the fact that many Wayne fuel dispensers have a remote control option to allow station owners and fuel inspectors to easily access them. J Reynoldson has updated the project titled Solar pool heater controller. Theres a small hole near the end of the nozzle that has its other end near a flexible diaphragm and a Venturi tube. But then, even THOSE are four-way, since off is a brightness as well. But whats really going on there? Interesting! But if you turn the first valve to 60%, the second valve will be at 40%. Refreshing. Just a flexible diaphragm, a tube, a spring, and some clever arrangement of all the parts. The Exxon truck and the Texaco truck get their gas at the same place that the Shell truck does. This is two valves connected in such a way that when one is open, the other one is closed in proportion so that the total flow is always equal to 100%. Sell up to five grades (usually three) to make the customer feel like having many choices, and only have to re-stock two tanks! Where do we find money? he said. An eBay spokesperson said in an emailed statement: eBay is committed to providing a secure online shopping experience to millions of people globally. Fun fact. If you wanted, say, 5 gallons, the attendant would pump the gas from the underground tank into the big glass tank that had measurement marks on it. Also it ran on a 6809 back then and I loved getting paid to write 6809 assembly code!). When the rising level of fuel blocks the hole at the tip, it causes the suction to stop, the diaphragm collapses, and the fuel valve springs shut with a loud click. On a trip to Sweden I stopped in Denmark to fill up with 101 octane and got 740 kilometers (462 miles) out of 54 litres (14.3 gallon). The whole 5 grades thing seems to be uniquely American, Ive only seen similar in Russia where the grades run from premium if youre very lucky, through regular (still quite decadent) down to has sticks floating in it 62-octane for the toothless old dude in the village to run his Soviet tractor on. And some of the hacking tools are easily available online for purchase. The pressure is actually lowest in the throat of the venturi, not after. No electronics at all. Recently weve had premium options appear, but no mix-grades. NE has very few blenders as the other states use them at almost every site. The most amazing part of the gas pump is how it somehow knows even with old tech that the tank is full. One thing to note, the way this system is designed, you end up with a 1/2 a gallon of the other guys fuel. This done in order to not destroy the catalyts with the lead, but a lot of people were knocking out the restrictor plates because unleaded gas cost a few cents more. 100% gaurantee they will be blending at the dispenser. These same stores also sold bologna by the slice, and would slice it right there at the cash register. Gasoline needs to have an octane rating of 87-91 to fit todays car engines. An the little known fact that the higher the grade, the higher the consumption is. But with the proliferation of pumping stations, and microcontrollers decades away, designers had to do some clever electromechanical work to make a functioning pump that could be used without skill or even by the customer themselves. This has been dumbed-down substantially, because electronics is almost always cheaper than mechanical devices, so most mechanical devices are made as simply as possible, leaving the tricky job of controlling them to microcontrollers. Which is apparently a problem for you load delivery drivers since I get 3 calls a month from store owners who have gotten deliverys in the wrong tanks. We lead the nation in both new pump technology and emissions restriction, and most of the gas pumps have blending 3 way valves. While Waynes gas dispensers require remote users to enter a key code to access its controls, many station owners never change it from the default setting, Denton said. Absolutely nothing stops you putting this non-ethanol gas into your car which I always do, especially now barely driving my car cause of covid. One for regular gas, one for premium, and one for diesel. Gasoline products are not blended at the pumps, or at least they havent been for the last 20 years. Products were always blended to their final form at either the pipeline terminal or the refinery while loading. For example, if you squeeze a rubber tube in the middle, whatever is flowing through the tube will be at a lower pressure after the compressed part of the tube. But THEN, after you could no longer even FIND leaded gas, they never retired the law. Also, very large sites only put 12-16 positions per RS-485 bus, at those 9600-ish baud rates you cant keep up with more! Originally it wasnt a nanny state thing; it was that when the big switch to unleaded gas was made in the early 70s, cars with catalytic converters had restrictor plates in their fuel filler pipes to prevent filling them with leaded gas (the new unleaded nozzles were smaller in diameter). The legislature heard about this and outlawed self-service. All that does is make fuel expensive for everybody else, Patronis said, Not only would I support banning it (the device), but even if youre caught using it making sure there is a multiple degree felony attached to it.. This non-ethanol is sold in a blue colored handle and its not like diesel where the pump spout is bigger to keep people from accidentally putting diesel in their gas car. IE 11 is not supported. While theres no formal law enforcement metric to measure the trend, 1 in 4 convenience-store gas station owners say fuel thefts have been rising since March, said Jeff Lenard, a vice president of the National Association of Convenience Stores, an industry group. Gasoline contamination can also damage the fuel pump and mess up diesel injectors. Besides thieves simply arriving in off hours and stealing gas in bulk from underground storage tanks, gas hackers primarily steal using one of two methods, one for each of the two companies, Denton said. Gas theft has existed for nearly as long as there have been gas stations, Lenard said. Simple Propulsion For The Lazy Paddle Boarder, R2Home Is Ready To Bring Back Your High Altitude Payload. The Venturi effect causes a pressure drop when you compress a moving fluid. To me, three-way switches are the ones on lamps that have a ring terminal for dual filament bulbs, because of the three brightness settings. Mixing 2% diesel fuel into gasoline will lower the overall octane rating by 1 point. Thats a local transaction number to track the progress of the sale. After about 15 mins of freaking out, it turned out that the low-grade tank was empty. The results could be very expensive! I admit that I have only delivered in the upper Midwest parts of the country, but Ive worked with guys that did delivery in Arizona, California and several other states in the southwest, and they said operations were essentially the same there. Learn how your comment data is processed. NBC News found such keys were also widely available for sale online. Sorry, but I work for a company that installs gas station equipment, and blenders outnumber pure-product dispensers 100:1. If it wont mute I dont use that station again. Thieves use homemade devices, which can be made from a handful of parts from a hardware store, to slow the pulser so it registers only a fraction of the gas it dispenses. The pump part controls anything to do with fuel flow and pricing and nothing else. First, the pump side and the card reader terminal side are completely separate on all four major brands of that day (which was collapsing to just Gilbarco and Wayne by the time I moved on). There is one correction or clarification required however. Neither company responded to a request for comment. They have a a blend valve in the bottom of the pump before it trans in to the meters that count the amount. But it was only after Hurricane Katrina, where a drastic price increase led to more thefts, that most American stations began requiring customers to prepay for gas. And thats just the first potential problem. Investigators told News 6 that gas station video surveillance shows thieves inserting the device, which is roughly 5 inches high and 5 inches wide, into a gas pump in less than a minute. Sites that still have Regular/Plus/Premium tanks usually abandon Plus as a product by replacing their pure-product dispensers with blenders for plus and fill the plus tank with diesel or non-ethanol gas. From multi geared siphon turbines with Venturi and 3 way valves, all the way up to the tank monitoring system and point of sell unit and the network it connects to, you are completely out of your element, and should conserve you attentions to not falling asleep behind the wheel and putting your hose in the correct tank. Diesel has enough lubricity to lubricate the fuel pumps and the injectors. But explain this: Ive seen four way used to describe circuits that have three switches. Hackaday Podcast 179: Danger Chess, Corona Motors, An Omni-Walker, And A Fast Talking Telescope, This Week In Security: Symbiote, Smart Locks, And CosmicStrand, Never Too Rich Or Thin: Compress Sqlite 80%. They do I fact blend at the pump but now its done by the computer base. Didnt know this was a thing. )], It tells me whoever designed this knew how a gas pump operates, Fuentes said. What fun it is to climb on top of a trailer in that weather! Higher grade: lower density fuel so lower specific energy per volume All the blending has to be done onsite somewhere likely in the pump. I wonder sometimes if we just over complicate the solution to problems. The second method, often used against Gilbarco pumps, tricks a gas pump into dispensing far more gas than it tracks. Not actually on or off. For calibrating said pumps you just calibrate each grade 87 then 91 then you check 89 to make sure its within tolerance. Theres some way to tell how much is pumping and how much it costs and, today, some way to take the payment. If unburned diesel fuel makes its way into the exhaust system, it will ignite in the catalytic convertor. I think the blending they were referring to was to create mid grade gasoline as 89 octane is not available at the loading rack. On site blending also takes place with biodiesel at most large truck stops, but that doesnt take place at the dispenser; thats happening either underground by the tanks or in an above ground shed located in the tank area. Remembering the variable blend pumps are just youngsters. Do they actually have a separate non ethanol tank. A spokesperson for Stewart said she is considering possible legislation once specific language is developed by the Office of Agriculture Law Enforcement, the office that regulates gas pumps in the state. As a delivery driver, you REALLY did not want to mix up tanks when delivering. Instead of correcting peoples hard work. Some pumps do blend the gas. So the flash point wouldnt be consistent throughout the entire tank.Given the large difference in flash point temperature between gas and diesel, it doesnt take very much gasoline to depress the flash temperature significantly. State CFO Jimmy Patronis told News 6 he is concerned about the impact on the independent trucking industry and Florida consumers. Ive worked all across the south and you will very rarely find a midgrade tank. Once it held the requisite amount, the hose would go into your gas tank, the attendant would open the stopcock, and gravity would do the rest. yes this is whole grade madness in US where you have 5 different blend with only 1 grade difference between them. If a gas station offers 91 octane it is in reality 95 and the price is mostly the same. This can damage all internal engine lubricated parts resulting in major engine failure from rapid wear. A pitot tube which feeds the air speed indicator. If you thought about using your old cars fuel pump to cool your PC, you might want to think again. Another thing is where they retrofit older pumps with touchscreens, but dont quite update the user interface, which means some of the selections you do have to be done by pressing the screen, and others from the buttons by the PIN pad, like selecting the number of the pump you want to use, and they dont tell you whether to press the number on the pad or on the screen, so people just stand there scratching their heads wondering why nothing is happening. Richard C. Corson originally came up with a version of the automatic shutoff in 1939 and received a patent in 1942. Len Denton, a fuel industry veteran and the founder of Guardian Payment Solutions Corp., a startup that makes security products for gas stations, said that gas station owners and law enforcement officials have told him of a rush of theft complaints from station owners and police since March. BTW join the National Petroleum Carriers Club on Facebook. If you have an issue or story idea, call Mike's office at 407-521-1322. The most common tactics arent technologically sophisticated, and some of the tools used to hack pumps are easily available online. And it could be that other parts of the country do still use blender pumps. You have to admit, theres probably a lot more to it than you would have thought. I always was in the back of my mind to check up on how the nozzle works. Aaah, I can still smell the fumes! https://i.ebayimg.com/images/g/bvMAAOSwVBRb3Iww/s-l300.jpg. Hate to contradict you, but in fact almost all multi product dispensers MPD that have more than two grades are actually blending the product. . And if you continue to use the fuel, you can cause real damage to the vehicles computer sensors by either overheating them or covering them in soot such that they cant detect anything. The easy solution to prevent this from happening is to change that code when pumps are installed, but for whatever reason, whether apathy or lack of knowledge, some of these owners arent., Its illegal, obviously, but its a good deal for them, Clark said. The person who shot seven people in downtown Orlando remains on the run. Beyond these, youll get incomplete combustion, initially characterized by large amounts of black smoke. As little as 1% gasoline contamination will lower the diesel flash point by 18 degrees C. This means the diesel fuel will prematurely ignite in the diesel engine, which can lead to engine damage. On a holiday in Oman I payed around a dollar per gallon, with the pump attendant mentioning that this was expensive, as in neighbouring Saudi Arabia it was a lot cheaper. Simply speaking, gasoline is a solvent while diesel is an oil. The dumbest thing was that a couple of times I got L3 support calls when the pump handle didnt click off and the gas spilled over. Increased gas prices lead to more reports of gas theft in U.S. Learn more, Three-Wheeled Turret Car Looks Like It Should Be Orbiting Thunderdome, Tech In Plain Sight: Primitive Engineering Materials, Tech In Plain Sight: Check Digits And Human Error, Tech Hidden In Plain Sight: Cruise Control, https://en.wikipedia.org/wiki/2000s_energy_crisis, https://en.wikipedia.org/wiki/Barack_Obama, https://patents.google.com/patent/US5222027A/en. Theres a lot of technology out there that someone is an expert on, but most of us just take it for granted. So I left a message with their contact to roll a tanker truck out, and left. Thats amazing, considering oil prices rose and peaked in 2008 before Obama was even president in 2009. A 2 way switch is technically all switches that have 2 positions, up or down. (If your receipt has TRACE with a 4-digit number, its a version of that system. Whats funny is that we tend to think of new technology as the only sophisticated technology. Ask someone who isnt technically inclined how a TV signal works or how a cell phone works, or even how a two-way switch in a hall light works and you are likely to get either a blank stare or a wildly improbable explanation. Swapping in some gasoline takes away this lubrication, leading to damage. John Tolley, a trial lawyer who founded JT Law Firm, gave Florida homeowners tips for how they can get ready for hurricane season. One of these things is the lowly gas pump. lion mclionhead has added a new log for Shower curtain solutions. Please be kind and respectful to help make the comments section excellent. A UPS driver filed a proof of delivery report on March 9 that shows he left a package at the front door of the home of Allisa and Wayne Kuberiet.
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