公开(公告)号：WO2015198085A1

公开(公告)日：2015-12-30

申请号：PCT/IB2014/003109

申请日：2014-12-04

Applicant: HILITE GERMANY GMBH

Inventor： PARKER, Kenneth, J. ,  SNYDER, John ,  SAPP, Brian ,  DIEDERICHS, Udo ,  KOENIG, Melissa, Mei

IPC: F01L1/344 ,  F16K11/07

CPC classification number: F01L9/025 ,  F01L1/04 ,  F01L1/3442 ,  F01L2001/34426 ,  F01L2001/34433 ,  F16K11/07 ,  F16K15/142 ,  F16K15/185

Abstract: In a hydraulic valve comprising a spool, one or more band-shape check valves and an enclosing bolt or snout, the check valve may be compressed to the point of excessive wear or failure and may impede spool movement. The problem outlined is solved by an inventive hydraulic valve for use with a cam phasing apparatus of an internal combustion engine. The hydraulic valve comprises a hollow bolt or snout, check valves, and a spool disposed inside the bolt while still being able to shift axially within the bolt. The bolt and spool are configured to provide fluid passageways between the spool and the cam phasing apparatus depending on a translational displacement of the spool. Furthermore, the spool is configured to allow an oil flow through the fluid passageway, yet limit a compression of the band-type check valves.

Abstract translation: 在包括阀芯，一个或多个带状止回阀和封闭螺栓或鼻孔的液压阀中，止回阀可以被压缩到过度磨损或破坏的点，并且可能阻止阀芯移动。 所概述的问题通过与内燃机的凸轮定相装置一起使用的本发明的液压阀来解决。 液压阀包括中空螺栓或鼻孔，止回阀和设置在螺栓内部的线轴，同时仍然能够在螺栓内轴向移动。 螺栓和阀芯构造成根据阀芯的平移位移而在阀芯和凸轮定相装置之间提供流体通道。 此外，阀芯构造成允许油流过流体通道，但限制带式止回阀的压缩。