IPC Classification

Class code (prefix) Descriptions Number of results
F02G 1/00 Hot gas positive-displacement engine plants
F02G 1/02 Hot gas positive-displacement engine plants of open-cycle type
F02G 1/04 Hot gas positive-displacement engine plants of closed-cycle type
F02G 1/05 Controlling by varying the rate of flow or quantity of the working gas
F02G 1/06 Controlling
F02G 1/043 Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
F02G 1/044 Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines having at least two working members, e.g. pistons, delivering power output
F02G 1/045 Controlling
F02G 1/047 Controlling by varying the heating or cooling
F02G 1/053 Component parts or details
F02G 1/055 Heaters or coolers
F02G 1/057 Regenerators
F02G 3/00 Combustion-product positive-displacement engine plants
F02G 3/02 Combustion-product positive-displacement engine plants with reciprocating-piston engines
F02G 5/00 Profiting from waste heat of combustion engines, not otherwise provided for
F02G 5/02 Profiting from waste heat of exhaust gases
F02G 5/04 Profiting from waste heat of exhaust gases in combination with other waste heat from combustion engines