PROBLEM TO BE SOLVED: To allow a motor portion in a work vehicle to be compacted while suppressing deterioration in an oil cooling performance in an oil cooler.SOLUTION: An oil cooler 18 is arranged on an upper side in a flowing direction of cooling air for a radiator 17 equipped with a cooling fan. The oil cooler 18 is equipped with: a plurality of vertically directional pipe parts 18A forming a vertical flow path; a plurality of upper pipe parts 18B forming a flow path across upper ends of two adjacent vertical pipe parts 18A; and a plurality of lower pipe parts 18C forming a flow path across two adjacent vertical pipe parts 18A, so as to form single continuous flow path that meanders in a vertical direction. The plurality of vertical pipe parts 18A are arrayed so that a direction in which the vertical pipe parts 18A connected by the upper pipe parts 18B are lined is different from a direction in which the vertical pipe parts 18A connected by the lower pipe parts 18C are lined.SELECTED DRAWING: Figure 4
【課題】オイルクーラにおけるオイル冷却性能の低下を抑制しながら、作業車における原動部のコンパクト化を図れるようにする。【解決手段】冷却ファンを備えたラジエータ17に対する冷却風の流動方向上手側にオイルクーラ18を配備し、オイルクーラ18は、上下向きの流路を形成する複数の縦向き管部18Aと、隣接する2つの縦向き管部18Aの上端同士にわたる流路を形成する複数の上側管部18Bと、隣接する2つの縦向き管部18Aの下端同士にわたる流路を形成する複数の下側管部18Cとを備えて、上下方向に蛇行して連続する1本の流路を形成し、複数の縦向き管部18Aを、上側管部18Bにより連接する縦向き管部18Aの並び方向と下側管部18Cにより連接する縦向き管部18Aの並び方向とが異なるように配列している。【選択図】図4
COOLING PART OF WORK VEHICLE
作業車の冷却部
2016-03-10
Patent
Electronic Resource
Japanese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F01P Kühlung von Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein , COOLING OF MACHINES OR ENGINES IN GENERAL / F28D Wärmetauscher, soweit in keiner anderen Unterklasse vorgesehen, in denen die Wärmetauschmittel nicht in direkte Berührung miteinander kommen , HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT |