F02GLevel 3

HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS

**Definition:** This place covers:

Hot-gas or combustion product positive-displacement engine plants and use of waste heat of combustion engines, not otherwise provided for.

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F02G 1/00Hot gas positive-displacement engine plants

F02G 2242/00Ericsson-type engines having open regenerative cycles controlled by valves

F02G 2243/00Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes

F02G 2244/00Machines having two pistons

F02G 2250/00Special cycles or special engines

F02G 2253/00Seals

F02G 2254/00Heat inputs

F02G 2255/00Heater tubes

F02G 2256/00Coolers

F02G 2257/00Regenerators

F02G 2258/00Materials used

F02G 2260/00Recuperating heat from exhaust gases of combustion engines and heat from cooling circuits

F02G 2262/00Recuperating heat from exhaust gases of combustion engines and heat from lubrication circuits

F02G 2270/00Constructional features

F02G 2275/00Controls

F02G 2280/00Output delivery

F02G 2290/00Engines characterised by the use of a particular power transfer medium, e.g. Helium

F02G 3/00Combustion-product positive-displacement engine plants

F02G 5/00Profiting from waste heat of combustion engines, not otherwise provided for

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