PROBLEM TO BE SOLVED: To provide a marine gear device 11, in which a pressure reducing valve 65 is configured to have a high rigidity so that it can endure a high hydraulic fluid pressure during normal navigation so as to solve problems of increases in the weight and size of the pressure reducing valve 65, which may cause an increase in manufacturing costs.SOLUTION: A lubricant passage 42 for filling a forward/reverse selector mechanism 16 with lubricant is branched from a hydraulic fluid passage 24 that extends from a hydraulic fluid pump 21 to a forward/reverse selector mechanism 16 via a forward/reverse selector valve 26. A low pressure fluid passage 63 is branched from the lubricant passage 42. The low pressure fluid passage 63 is provided with a trolling device 64 for controlling a hydraulic fluid pressure flowing to the forward/reverse selector mechanism 16. In the hydraulic fluid passage 24, the outlet side of the low pressure fluid passage 63 is joined between a branch part 42a to the lubricant passage 42 and the forward/reverse selector valve 26. At the junction part between the hydraulic fluid passage 24 and the low pressure fluid passage 63, there is provided a junction selector valve 80 for selecting for the forward/reverse selector mechanism 16 either introducing a hydraulic fluid pressure via the hydraulic fluid passage 24 or introducing a hydraulic fluid pressure via the low pressure fluid passage 63.

    【課題】マリンギヤ装置11において、通常航行時の高圧の作動油圧に耐え得るように減圧弁65を高剛性に構成すると、減圧弁65の重量増大や大型化、ひいては製造コストの上昇を招来するという問題を解消する。【解決手段】作動油ポンプ21より前後進切換弁26を介して前後進切換機構16に至る作動油路24から、前後進切換機構16への注油用の潤滑油路42を分岐させる。潤滑油路42からは低圧油路63を分岐させる。低圧油路63には、前後進切換機構16に向かう作動油圧を調節するトローリング装置64を設ける。作動油路24において潤滑油路42への分岐部分42aと前後進切換弁26との間に、低圧油路63の出口側を合流させる。作動油路24と低圧油路63との合流部分に、前後進切換機構16に向けて作動油路24経由の作動油圧を導入するか低圧油路63経由の作動油圧を導入するかを選択的に切り換える合流切換弁80を設ける。【選択図】図3


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    Title :

    MARINE GEAR DEVICE


    Additional title:

    マリンギヤ装置


    Contributors:

    Publication date :

    2015-06-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / F16H Getriebe , GEARING



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