Car gearbox with heating and/or ultrasonic installation, consisting at least of ultrasound generator incorporated in gear box oil sump, delivering sufficient ultrasonic energy for oil thinning, especially in very cold conditions

摘要

Ultrasonic installation of car gearbox (5) consists of at least one ultrasound generator (1) incorporated in gearbox oil (2) sump (4) delivering sufficient energy for oil thinning. Preferably ultrasonic generator consists of excitation circuit and piezo- or magnetostrictive element (3).Preferably oil heating installation may be included and may consist of heating wire or Peltier element, or microwave generator, e.g. magnetron.