gstallons Posted August 30, 2020 Share Posted August 30, 2020 For Docc & Phil : they have been "in tank" since the 80s and the tanks have been both metal and plastic . 1 Link to comment Share on other sites More sharing options...
bbolesaz Posted August 31, 2020 Share Posted August 31, 2020 None of the in tank electronics "spark". If they do, that's badness. And yes, the pump motor is brushless. Edit - I don't think the pump is brushless in early 2000's. The brushless motors are becoming more common. I know this because my company build the controller chips used for these motors. (A good business for us!). It's the concentration of the fuel vapor that prevents explosions. From Google - "The reason electric, tank- mounted fuel pumps do not cause explosions is that the concentration of fuel vapors is too high to allow an explosive mixture. The volatile (which in this context refers to a tendency to evaporate) nature of gasoline causes fuel vapors to take up any empty space as the fuel tank is emptied. Even if you completely empty a tank, open its access ports, and allow it to sit open, the concentration of vapors INSIDE the tank will still be too high to explode. Now, OUTSIDE the tank is a different story, and for this reason, one must use caution when performing any sort of repair or maintenance to a fuel tank, regardless of the type of pump used on the vehicle." 2 Link to comment Share on other sites More sharing options...
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