Switching modes diffusers freight locomotives


To empty mode include the diffuser in the management of freight trains with maximum speed not exceeding 90 km / h to reduce the impact of brake pads on tread tires locomotive wheelsets prevent sticking and the formation of ridge with brake pads with thermal cracks in the wheel flange.

A lack of current brake pressing accruing for every 100 tons of weight of the locomotive (for example, the locomotive brake design VL80T clicking on empty mode is: 6-8 = 48 n, that if the mass of the locomotive 190 tons gives only 25.26 ton to 100 tons of weight locomotive) is compensated by means of the brake, practically defining the braking efficiency of the train, as well as the compulsory use of an auxiliary engine brakes in emergency braking.

On average braking mode include the supply air in transit locomotives raft. In this case there is no risk of damage of the wheels, as if laden mode, and at the same time provides the required minimum rate of 100 tons of pressing the weight of the locomotive [in the example with electric brake press VL80T estimated at 100 metric tons of mass is (14 * 0.7 * 8 * 100) / 190 = 41.26 n].

Locomotive air distributors to include a loaded mode at the upcoming pursuit of a freight train at a speed exceeding 90 km / h, in the conduct of the passenger train, a single pursuit of the locomotive, as well as on all locomotives, except the head, while working on a system of many units, if the action of the crane auxiliary brake first engine does not extend to the next. Inclusion laden regime diffusers in these cases is determined by conditions to achieve the necessary efficiency and emergency braking avtostopnogo.

Thus, the modes include locomotive diffusers provide the necessary efficiency and avtostopnogo emergency braking when a more secure work bandages wheelsets in the modes of service braking. In the raised bed pads on the locomotive when it is possible under the terms of reference of the train should leave the locomotive brakes to produce regardless of the brakes, especially if the diffuser is included in the loaded mode.