HYDRAULIC VALVE AND A CONNECTING ROD WITH A HYDRAULIC VALVE
DRIVE
September 28, 2016
The invention relates to a hydraulic valve (8), in particular for switching an actuating piston (31, 32) in a connecting rod (1) for an internal combustion engine with variable compression. The hydraulic valve (8) comprises a valve housing (44) which has a first working port (A1) and a second working port (A2) as well as a supply port (P) which can be acted upon by a hydraulic pressure of a hydraulic fluid, whereby a movable piston (9) arranged in the valve housing (44) can be displaced against the force of a prestressed spring (10). As a result, the working ports (A1, A2) and the supply port (P) can each be sealed against one another and against the atmosphere by means of sealing elements (48, 49, 51, 52) when properly installed in a valve receiving bore (50) of the connecting rod (1). In this case, the sealing elements (48, 49, 51, 52) can be applied in a sealing manner to a wall (78) of the valve receiving bore (50) by the hydraulic pressure. The invention further relates to a connecting rod (1) with such a hydraulic valve (8). According to the invention, the hydraulic valve (8) is provided mechanically decoupled from the connecting rod (1).
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