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- From: chism@hplvec.LVLD.HP.COM (Wayne Chism)
- Date: Wed, 14 Oct 1992 21:10:52 GMT
- Subject: Why not . . BOOM !!
- Message-ID: <2630014@hplvec.LVLD.HP.COM>
- Organization: Hewlett-Packard Co., Loveland, CO
- Path: sparky!uunet!UB.com!pacbell.com!ames!elroy.jpl.nasa.gov!sdd.hp.com!scd.hp.com!hplextra!hpfcso!hplvec!chism
- Newsgroups: rec.autos.tech
- Lines: 16
-
- Having just replaced the 'in tank' electric fuel pump in my
- beater commuter car, this question comes to mind. . .
-
- How can a DC motor - with commutator, brushes and their
- associated arcing operate in a gas tank with assurance that
- no explosion will occur? Obviously if the tank has gas in it,
- the pump is full of liquid and in the presence of no oxygen,
- no problem. BUT, what happens if you run out of gas? Now
- it seems that there could very possibly be the ideal mixture
- of air and gasoline vapor in the tank to produce an excellent
- bomb! But it doesn't happen! The pump is not sealed - i.e.
- the motor, commutator, etc. are indeed exposed to the gasoline
- and or vapor in the tank.
-
- Curious!
-
-