PROBLEM TO BE SOLVED: To provide a transfer device of a four-wheel drive vehicle capable of suppressing deterioration of fuel consumption by reducing agitation friction when housing a gear mechanism and a clutch mechanism into the same transfer case.SOLUTION: A transfer device of a four-wheel drive vehicle includes: a gear mechanism G which is disposed on a driving branch position from right and left front wheels 6, 7 to right and left rear wheels 19, 20 and changes rotation direction of a driving force from an engine 1; a dog clutch 8 which connects/disconnects driving force transmission from the engine 1 to the gear mechanism G; and a transfer case 23 which houses the gear mechanism G and the dog clutch 8 adjacently to each other. Therein, the transfer case 23 is configured so as to divide a gear chamber 60 which houses the gear mechanism G and a clutch chamber 61 which houses the dog clutch 8 with first and second oil seals OS1, OS2, enclose first lubrication oil OIL1 into the gear chamber 60 and enclose second lubrication oil OIL2 having a viscosity lower than that of the first lubrication oil OIL1 to the cutch chamber 61.

    【課題】同一のトランスファケースにギア機構とクラッチ機構を収納する際、撹拌フリクションを低減して燃費悪化を抑制できる4輪駆動車のトランスファ装置を提供すること。【解決手段】左右前輪6,7から左右後輪19,20への駆動分岐位置に設けられ、エンジン1からの駆動力の回転方向を変えるギア機構Gと、エンジン1からギア機構Gへの駆動力伝達を断接するドグクラッチ8と、ギア機構Gとドグクラッチ8を隣接して収納するトランスファケース23と、を備え、前記トランスファケース23は、ギア機構Gを収納するギア室60と、ドグクラッチ8を収納するクラッチ室61を、第1,第2オイルシールOS1,OS2で分割し、前記ギア室60に第1潤滑オイルOIL1を封入し、クラッチ室61に第1潤滑オイルOIL1よりも低粘度の第2潤滑オイルOIL2を封入する構成とした。【選択図】図5


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    Title :

    TRANSFER DEVICE OF FOUR-WHEEL DRIVE VEHICLE


    Additional title:

    4輪駆動車のトランスファ装置


    Contributors:

    Publication date :

    2015-09-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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



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