‘external combustion engine’ means a heat engine in which combustion and expansion chambers are physically separated and where an internal working fluid is heated by combustion in an external source;
ciallaíonn “inneall dócháin sheachtraigh” inneall teasa ina bhfuil an cuasán dó agus an cuasán borrtha dealaithe go fisiceach óna chéile agus go ndéantar an sreabh oibrithe inmheánach a théamh trí dhóchán i bhfoinse seachtrach;