Compound compression ignition and stirling engine - has common cylinder block and linked synchronous shafts, and transfers heat to stirling engine via two-stage heat exchanger

摘要

The piston (6) of a compression-ignition engine drives the crank (17). Its cylinder (1) is mounted in and cooled by the cylinder (2) of a stirling engine. The displacement piston (7) and power piston (8) are connected by coaxial rods (9) to a rhombic drive system (16). The shafts (20, 22) are linked to ensure synchronism. Fuel is burned only in the upper cylinder. Heat is transferred to the helium-filled stirling engine via the cylinder walls and the two-stage heat exchanger (10, 11). In a multi-cylinder cascade, the displacement piston is dispensed with. When idling a hot engine, the fuel supply is shut off, the stirling cycle being maintained by residual heat (4). When started from cold, the stirling engine provides no power and is de-coupled (24). The burner (25) enables rapid starting of the stirling cycle.