F02G2242/40 - CPC Classification Index

ClassID:

140180 ⎘

F02G2242/40 - CPC Classification

Classification description:

Ericsson-type engines having open regenerative cycles controlled by valves Piston-type engines

Sub-classes:

F02G2242/42 » having a single piston regenerative displacer attached to the piston, e.g. "Gifford-McMahon" engines 1
F02G2242/44 » having two pistons and reverse flow regenerators 3

Recent Application in this class:

20260078714

Pneumatically Actuated Energy Generator

20210270205

External combustion heat engine combustion chamber