The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)
The original patent contains no such notice, so its contents are in the public domain.
Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}.
Phases:
Isothermal compression
Isobaric expansion
Isothermal expansion
Isobaric compression
Figures:
FIG. 1 is a longitudinal section of a hot gas engine according to the invention.
FIG. 2 is a cross section of the hot gas engine taken on the line ‘II--II in FIG. 1. '
FIG. 3 is a longitudinal section of chamber e in FIG. 2.
FIG. 4 is a longitudinal section of the chamber g in FIG. 2.
FIG. 5 is a longitudinal section of the chamber i in FIG. 2.
FIG. 6 is a longitudinal section of the pipe loops constituting the heat exchanger.
FIG. 7 is a partial view of the pipe loop arrangement.
FIG. 8 is a longitudinal section of a pipe loop having an enlarged heat transfer surface.
FIG. 9 is a cross section of a heat transfer element.
FIG. 10 is a longitudinal section of a heat transfer element.
Parts:
1 housing
2 rotor
3 rotor
4 housing section
5 housing section
6 shaft
7 shaft
8 piston (of rotor 3)
9 recesse
10 recesse
11 outer wall
12 outer wall
13 annular working chamber
14 spherical body
15 pipe(s) / pipe loops
16 inner portion
17 outer portion
18 inlet ports
19 outlet ports
20 compression stage
21 expansion stage
Legendas
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