11. Each of their turbines employed a unique rotating recuperator , referred to as a regenerator that increased efficiency. 12. The hydro-pneumatic recoil system comprises a buffer below the barrel and a recuperator above the barrel. 13. The Mk II of 1890 introduced a recoil system, with a pair of recoil / recuperator cylinders. 14. Microturbine designs usually consist of a single stage radial compressor, a single stage radial turbine and a recuperator . 15. The gun had interrupted screw breechblock; hydraulic recoil buffer and hydropneumatic recuperator were both mounted under the barrel. 16. Recoil system consisted of hydraulic recoil buffer and hydropneumatic recuperator , both located inside the cradle under the barrel. 17. The overall appearance is of a standard 13 pounder with an additional, slightly longer, recuperator cylinder on top. 18. The D-1 howitzer was essentially a combination of the barrel of the hydraulic buffer and a hydro-pneumatic recuperator . 19. The Mk I mounting had an additional recuperator housing mounted directly above the normal recuperator to facilitate gun runout at high angles. 20. The Mk I mounting had an additional recuperator housing mounted directly above the normal recuperator to facilitate gun runout at high angles.
