Article View: sci.space
Article #6424pumps etc.
From: Henry Spencer
Date: Sat, 19 Dec 1992 01:45
Date: Sat, 19 Dec 1992 01:45
16 lines
1234 bytes
1234 bytes
In article <1grfkbINN3gi@uniwa.uwa.edu.au> scott@psy.uwa.oz.au (Scott Fisher) writes:
>Q: What drives the turbo-pumps the rocket exhaust?
There are several methods; the commonest is to burn some of the fuel and
some of the oxidizer in a separate burner and use the resulting hot gas
to drive pump turbines.
>If this is so...why can't you bleed some pressure from the exhaust to
>pressurisethe tanks? Is this done?
Building the tanks themselves to take the full pressure needed adds a lot
more weight than the turbopumps. Pressure-fed engines *are* simpler, but
there's a substantial weight penalty.
--
"God willing... we shall return." | Henry Spencer @ U of Toronto Zoology
-Gene Cernan, the Moon, Dec 1972 | henry@zoo.toronto.edu utzoo!henry
Technical Details
Message-ID:
<BzHGvF.9oC@zoo.toronto.edu>Path:
arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!torn!utzoo!henryReferences:
<1992Dec9.133030.6288@ke4zv.uucp> <ewright.724021208@convex.convex.com> <1992Dec11.175719.24880@ke4zv.uucp> <1glgrrINN6jj@mirror.digex.com> <1grfkbINN3gi@uniwa.uwa.edu.au>Show Full Headers
Complete Article Headers
Newsgroups: sci.space Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!torn!utzoo!henry From: henry@zoo.toronto.edu (Henry Spencer) Subject: pumps etc. Message-ID: <BzHGvF.9oC@zoo.toronto.edu> Date: Sat, 19 Dec 1992 01:45:13 GMT References: <1992Dec9.133030.6288@ke4zv.uucp> <ewright.724021208@convex.convex.com> <1992Dec11.175719.24880@ke4zv.uucp> <1glgrrINN6jj@mirror.digex.com> <1grfkbINN3gi@uniwa.uwa.edu.au> Organization: U of Toronto Zoology Lines: 16