Ford Fokus>> System of release of the fulfilled gases

Fig. 316 and. System of release of the fulfilled gases for engines with working volume 1,4 — 1,6 l: 1 — каталитический neutralizer; 2 — the central muffler; 3 — the back muffler; 4 — a lining

Fig. 316. System of release of the fulfilled gases for engines with working volume 1,8 — 2,0 l: 1 — a clip каталитического neutralizer; 2 — a lining; 3 — каталитический neutralizer; 4 — an arm; 5 — сильфон; 6 — a lining; 7 — the central muffler; 8 — the back muffler; 9 — a lining

Fig. 316 century System of release of the fulfilled gases of diesel engines: 1 — каталитический neutralizer; 2 — сильфон; 3 — the central muffler; 4 — the back muffler

Noise decrease at an exit of the fulfilled gases and their emission in atmosphere was the main task of system of release of cars. Since 1980th the release system gets new functions: built in it каталитические neutralizers reduce to 90 % of all harmful substances containing in fulfilled gases. Car Focus is equipped with the system of release consisting of one or two parts. Now the release system is equipped adjustable three-componental каталитическим with neutralizer. Besides it gases pass through an exhaust pipe, the resonator and the basic muffler. Heat-shielding screens on an installation site of neutralizer and mufflers protect a body from influence of heats (fig. 316 and, 316, 316).
Service life of system of an exhaust in many respects depends on car service conditions. If you mainly go in city conditions or on short distances, in system settles more condensate, soot and harmful acid connections. During long trips the system gets warm to enough stable heats that naturally increases term of its service. In practice the system of release of the fulfilled gases of car Focus maintains to 70 000 km of run.
The forward part of system of an exhaust with the catalyst, despite oxidation, serves longer, than other sites of system. In the last by the way of the fulfilled gases the muffler the condensate greatest quantity gathers. The mix from soot and aggressive acid connections corrodes an exhaust pipe from within and outside. As the cooled atmospheric particles of water all time influence a hot surface of pipes of system, there are strong temperature fluctuations which negatively influence pipes. Finally because of it there can be elements of through corrosion. The sprayed particles of water and salt lead to formation of an external rust as well as blows of stones or the external physical damages caused, for example, by landing to a ground, to the same extent promote destruction of system of release of the fulfilled gases. Engine oscillative motions can lead to destruction of rubber linings of holders.