Patent ID: 11898448
Assignee: ACHATES POWER INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 11:
12. A hydrogen-fueled, two-stroke-cycle, uniflow-scavenged opposed-piston engine, comprising:
at least one ported cylinder with a bore;
a pair of pistons disposed for mutually opposing movements in the bore;
an air channel configured to provide a flow of charge air through an intake port of the cylinder in response to movement of a first piston of the pair of pistons past the intake port;
an exhaust channel configured to receive a flow of exhaust gas through an exhaust port of the cylinder in response to movement of a second piston of the pair of pistons past the exhaust port;
means for adjusting the flow of charge air;
a fuel provisioning device configured to provide hydrogen fuel;
at least one fuel injection device coupled to the fuel provisioning system and configured to inject the provided hydrogen fuel directly into the cylinder bore;
at least one ignition device configured to ignite a mixture of charge air and injected hydrogen fuel in a combustion chamber formed in the bore between end surfaces of the pair of pistons; and,
a control unit coupled to the at least one fuel injection device and the means for adjusting charge air, which is configured to cause the hydrogen-fueled, two-stroke-cycle, uniflow-scavenged opposed-piston engine to combust the hydrogen fuel while operating with a lambda (λ) of 2.0<λ<2.5.