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[quote user="samfp1943"] <p>[quote user="jockellis"]G'day, Y'all,<br />An auto mechanic today was telling me about electric retarder brakes currently on our city's newer firetrucks and the trend of the future in automotive braking. Will such brakes, which I understand are like an electric motor, be used in trains? I could be more specific about this, but I don't know what I'm talking about.[/quote]</p><p>Jock: </p><p> What you are referring to are brake retarders and driveline retarders, not too common in this country, but long used in Europe; inter-city buses and long haul trucks use them pretty heavily over there. The use of these components did increase the weight of the user vehicle, but they were waived by various countries which would allow the added weight to the vehicle without a penalty, because of the safety benefit. </p><p> Retarders can be electro-mechanical, as well as hydraulicly operated. They are used in applications where much braking and stopping are requiered, such as garbage trucks [ waste collection<span class="smiley">[:-,]</span>, or fire apparatus. Mostly on larger trucks rather than lighter, smaller vehicles. A couple of manufacturers/suppliers are Bendix and Telma, of France.. Search truck retarders,or brake retarders for more info. Hope this helps. </p><p> </p><p>[/quote] </p><p>Not sure about other parts of the US, but all of the transit buses here in Dallas have the retarders on them. Most of the 18 wheelers also have the retarderes, but not called retarders they call them an engine brake. </p>
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