公开(公告)号：WO2013043137A1

公开(公告)日：2013-03-28

申请号：PCT/TR2012/000079

申请日：2012-05-17

Applicant: HEMA ENDÜSTRI ANONIM ŞIRKETI ,  KÜÇÜKÇELEBI , Vahit Olcay

Inventor： KÜÇÜKÇELEBI , Vahit Olcay

IPC: F15B13/01

CPC classification number: F15B13/015 ,  F15B2211/30515 ,  F15B2211/321 ,  F15B2211/324

Abstract: The present invention ensures that an element (13) that prevents falling of the load by entrapment of the hydraulic fluid within a hydraulic cylinder also functions as discharging the entrapped hydraulic fluid in order to assure the lowering operation at the same time. As the said novelty in the system shall also function as the load retainer check valve, it is possible to achieve very low leak rates without employing any lowering valve or system or without reducing the diametric gap between the spool and the body.

Abstract translation: 本发明确保了通过在液压缸内捕获液压流体来防止负载下降的元件（13）也用作排出夹带的液压流体，以确保同时降低操作。 由于系统中的新颖性也将作为负载保持器止回阀，所以可以在不使用任何降低阀或系统的情况下实现非常低的泄漏率，也可以不减小阀芯与阀体之间的直径间隙。