| 摘要 |
PURPOSE:To cool a main clutch unit so efficiently as well as to aim at im provements in its durability and minizturization and so on, by installing a cooling air intake at a position in and around the main clutch unit in a clutch housing where it is built in. CONSTITUTION:A dual clutch unit consisting of a power takeoff main clutch unit 6 and a traveling main clutch unit 7 is set up in a clutch housing 3 as a main clutch unit. And, each of these clutch units 6 and 7 is cooled by cooling air generated out of a main clutch cooling fan 1, guided by a shroud 2 and discharged out of an outlet 12. At the above-mentioned, an air intake 4 is additionally installed in a front position of each of these clutch units 6 and 7 at an upper part of the clutch housing 3. With this constitution, with rotation of a fan 1 at the inside of the shroud 2, cooling air is inhaled out of the air intake 4, thereby cooling each of these clutch units 6 and 7 in an efficient manner.
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