专利名称：SUPPORT ELEMENT
发明人：Jurgen Kretschmer,Peter Sailer,Wolfgang
Christgen,Michael Kugler,Jochen Tovar,MaxSchafer
申请号：US15308994申请日：20150331
公开号：US20180187576A1公开日：20180705
专利附图：
摘要：A double-flow hydraulic support element for a switchable finger lever of a valvetrain of an internal combustion engine is provided. A piston is arranged in an axial bore of
the housing of the support element in an axially movable manner, and the piston includesa hollow cylindrical pressure part and a cup-shaped working part. A head of the pressurepart is used as a support for the finger lever and projects beyond the housing edge, andan opening for the flow of a hydraulic medium is formed in the end face of the head. Thehousing has a first passage and a second passage axially spaced from the first passagefor the hydraulic medium. The support element has a hydraulic play compensation devicewith a ball non-return valve for the finger lever. In order to achieve an optimal actuationof the coupling element, a sleeve which is closed on one side is inserted into the pressingpart; the closed end of the sleeve reaches the region of an outer annular groove in asealing manner below the dome-shaped head of the pressing part; a storage space forsupplying the play compensation device with the hydraulic medium is formed radiallywithin and axially outside of the sleeve, in the pressure part, and in the working part ofthe piston; the storage space is connected to the first passage in the housing via apassage opening in the working part; an actuation space formed between the sleeve andthe pressure part of the piston for hydraulically supplying the coupling device isconnected to the second passage in the housing via a radial passage opening in thepressure part; and the volume of the storage space is substantially greater than thevolume of the actuation space.
申请人：Schaeffler Technologies AG & Co. KG
地址：Herzogenaurach DE
国籍：DE
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