EntityQ1361438· pop 8· linked from 6 articlesvacuum engineSign in to saveheat engine which uses air pressure on one side of a piston and a partial vacuum on the otherConnectionsUnited KingdomCountrycarEntityvacuumEntityatmospheric pressureEntitysteam locomotiveEntityenthalpyEntityideal gas lawEntityStirling engineEntityOtto cycleEntityrailway turntableEntityplayer pianoEntitywindscreen wiperEntitythrottleEntityaspiratorEntityNewcomen atmospheric engineEntityDodge ChargerEntitygas engineEntityservomechanismEntityLancia MontecarloEntityvacuum servoEntityCategoriesEngines