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Tndkulemotor.svg Schema eines Takt Wd Glhkopfmotor Glhkopf Zylinder Kolben Kurbelgehuse Principle of stroke hot bulb engine Tndkulemotor sv Tndkulemotor UTC Tndkulemotor NH derivative work Malyszkz Other fields RetouchedPicture Zwektoryzowano Malyszkz Krzysztof Zajczkowski Malyszkz Tndkulemotor Hot bulb engines Twostroke engines