Hydraulic support element
AssigneeINA-Schaeffler KG
InventorGeorg Hofmann
Life of this patent
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Abstract
A hydraulic support element (1) is proposed for a valve train of an internal combustion engine. This has a hollow cylindrical housing (2), in the bore (3) of which there is a pressure piston (4) made from synthetic material reinforced with glass fibers or carbon fibers.
Claims14
A hydraulic support element (1) for a valve train of an internal combustion engine, having a hollow cylindrical housing (2), in the bore (3) of which a pressure piston (4) runs in an axially moveable manner, one end (5) of said piston projecting beyond an edge (6) of the housing (2) and said piston having on that end (5) face a head (7) for mounting a rocker arm and having a non-return valve (9) on its end (8) facing away from the head (7), a high pressure space (11) for hydraulic medium being generated between the end (8) facing away and an opposing base (10) of the housing (2), said high pressure space (11) capable of being supplied with the hydraulic medium from a storage space (12) situated above the end (8) facing away and enclosed by the pressure piston (4), characterized in that the pressure piston (4) consists, at its end (5) which projects beyond the edge (6) of the housing (2) and in at least a portion (13) which adjoins this end within the housing (2) and extends into the vicinity of the non-return valve (9), of synthetic material reinforced with glass fibers or carbon fibers.
Dependencies are inferred from the claim text.