System with multiple forced induction engines

1. A system, comprising:

a compressor section comprising a compressor rotor;

a turbine section comprising a turbine rotor configured to drive rotation of the compressor rotor;

a first engine including a first engine inlet, a first engine outlet and a first engine combustion zone fluidly coupled with and between the first engine inlet and the first engine outlet, the first engine inlet fluidly coupled with and downstream of the compressor section, and the first engine outlet fluidly coupled with and upstream of the turbine section; and

a second engine including a second engine inlet, a second engine outlet and a second engine combustion zone fluidly coupled with and between the second engine inlet and the second engine outlet, the second engine inlet fluidly coupled with and downstream of the compressor section;

wherein at least one of the first engine or the second engine comprises a reciprocating piston engine or a continuous combustion engine.

2. The system of claim 1 , wherein the compressor section is fluidly coupled with the first engine inlet and the second engine inlet in parallel.

3. The system of claim 1 , wherein the turbine section is fluidly coupled with the first engine outlet and the second engine outlet in parallel.

4. The system of claim 1 , further comprising:

a turbine expander section; and

an inlet to the turbine expander section fluidly coupled with and downstream of an outlet from the turbine section.

5. The system of claim 4 , further comprising a mechanical load rotatably driven by a rotor of the turbine expander section.

6. The system of claim 4 , further comprising:

a geartrain; and

a rotor of the turbine expander section coupled to the turbine rotor through the geartrain.

7. The system of claim 4 , further comprising:

a geartrain; and

a rotor of the turbine expander section coupled to a first engine rotating structure of the first engine through the geartrain.

8. The system of claim 7 , wherein the rotor of the turbine expander section is further coupled to a second engine rotating structure of the second engine through the geartrain.

9. The system of claim 1 , wherein the second engine outlet is fluidly coupled with and upstream of the turbine section.

10. The system of claim 1 , wherein the second engine outlet is fluidly discrete from the turbine section.

11. The system of claim 1 , further comprising a plenum fluidly coupled with and between the compressor section and the first engine inlet.

12. The system of claim 1 , further comprising a plenum fluidly coupled with and between the first engine outlet and the turbine section.

13. The system of claim 1 , further comprising a heat exchanger fluidly coupled with and between the compressor section and the first engine inlet.

14. The system of claim 1 , wherein the first engine comprises the reciprocating piston engine.

15. The system of claim 1 , wherein the first engine comprises the continuous combustion engine.

16. The system of claim 1 , further comprising:

a mechanical load; and

a rotating structure of the first engine configured to drive rotation of the mechanical load.

17. The system of claim 1 , further comprising:

a propulsor rotor; and

a powerplant configured to drive rotation of the propulsor rotor, the powerplant comprising the compressor section, the turbine section, the first engine and the second engine.

18. The system of claim 1 , further comprising:

an electric generator; and

a powerplant configured to drive rotation of a rotor of the electric generator, the powerplant comprising the compressor section, the turbine section, the first engine and the second engine.

19. A system, comprising:

a compressor section comprising a compressor rotor;

a turbine section comprising a turbine rotor configured to drive rotation of the compressor rotor;

a first engine including a first engine inlet, a first engine outlet and a first engine combustion zone fluidly coupled with and between the first engine inlet and the first engine outlet, the first engine inlet fluidly coupled with and downstream of the compressor section, and the first engine outlet fluidly coupled with and upstream of the turbine section; and

a second engine including a second engine inlet, a second engine outlet and a second engine combustion zone fluidly coupled with and between the second engine inlet and the second engine outlet, the second engine outlet fluidly coupled with and upstream of the turbine section;

wherein at least one of the first engine or the second engine comprises a reciprocating piston engine or a continuous combustion engine.

20. A system, comprising:

a turbocharger comprising a compressor section and a turbine section;

a first engine configured to receive first engine compressed air from the compressor section, combust first engine fuel with the first engine compressed air to generated first engine combustion products, and direct the first engine combustion products to the turbine section to drive rotation of a rotor within the turbine section; and

a second engine configured to receive second engine compressed air from the compressor section, combust second engine fuel with the second engine compressed air to generated second engine combustion products, and direct the second engine combustion products to the turbine section to further drive rotation of the rotor within the turbine section:,

wherein at least one of the first engine or the second engine comprises a reciprocating piston engine or a continuous combustion engine.