In the first phase of the program, parts from a Curtiss Wright RCI-60 internal combustion engine were combined with a new housing, end plates and a set of rotary valves to produce the first rotary expander, the RE1-60. The REL-60 was tested at a maximum power output of 155 hp (116 kW) at 4800 rpm when supplied with combustion gas at 1000 F (538C) and 600 psia (4.14 MPa). Details of the RE1-60 and test results were presented in a previous IECEC paper. The second rotary expander, the RE1-11, was designed with the expander's kinematics similar to that of Wankel's earlier engines; the main shaft/eccentric is stationary while the rotor and housing rotate. Power take-off occurs from the housing. Compared to the RE1-60 this kinematic change eliminates two balance weights and a fly wheel, and permits location of the valves closer to the expander's working chamber. In the present design the cooling water flow path produces engine cooling and exhaust temperature control by direct mixing of the coolant with exhaust gases. The lubricating oil circuit is utilized for bearing and gear lubrication and for rotor cooling.
Rotary expander development program
Entwicklungsprogramm fuer Kreisexpansionsmotoren
PROC. OF THE 13TH INTERSOC. ENERGY CONVERSION ENGNG. CONF. ; 2 , Aug ; 1481-1487
1978
7 Seiten, 17 Bilder, 4 Quellen
Aufsatz (Konferenz)
Englisch
Sealing system for a rotary expander
Online Contents | 2010
|Simulation of a Two-Stage Rotary Vane Steam Expander
SAE Technical Papers | 1972
|Advanced expander test bed program
NTRS | 1991
|Advanced expander test bed program
NTRS | 1993
|Initial test results for the RE1-11 rotary expander engine
Kraftfahrwesen | 1980
|