They are not thermal engines like commercial nuclear reactors. (realclimate.org)
BASF and Hyundai R&D engineers developed thermal engine encapsulation, which ensures that the engine reaches optimum operating temperature more quickly, by retaining heat when the car is at idle. (greencarcongress.com)
«This is part of the holy grail of plate tectonics — linking the two processes to understand how the crust responds to the mantle thermal engine of the planet.» (sciencedaily.com)