CSJ then introduces the issue of buckling of the chamber wall. For good
regen the chamber wants to be thin, for good structure it wants to be
thick.
In addition to XCOR, CSJ has been done by Masten, SPL, Scott Zeeb, BURPG,
and others.
On Wednesday, December 30, 2015, Henry Spencer <hspencer@xxxxxxxxxxxxx>
wrote:
On Wed, 30 Dec 2015, Brian Feeney wrote:
Does the Saddle / Jacket engine design alleviate much of the inner to
outer differential thermal wall stress by way of the inner wall (chamber /
nozzle) sliding relative to the outer wall.
XCOR's patented (US# 7854395 B1) design lets the inner wall expand both
axially (by sliding within the jacket) and radially (by building the jacket
as a loose fit at room temperature, so it's only a snug fit -- not a
crushing constraint -- with the inner wall hot). In principle this could
avoid much of the problem. In practice the details probably matter a lot...
Henry