Hydraulic valve play compensation element
A hydraulic valve play compensation element for an internal combustion engine is provided as a reverse-spring/free-ball element, with a cylindrical housing, a cylindrical piston guided therein with sealing play and a control valve, which is arranged between a low-pressure chamber of the piston and a...
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| Main Authors | , , |
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| Format | Patent |
| Language | English |
| Published |
12.02.2008
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| Online Access | Get full text |
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| Summary: | A hydraulic valve play compensation element for an internal combustion engine is provided as a reverse-spring/free-ball element, with a cylindrical housing, a cylindrical piston guided therein with sealing play and a control valve, which is arranged between a low-pressure chamber of the piston and a high-pressure chamber of the housing, on a piston head of the piston and which has a closing body, which can contact a valve seat surrounding an axial bore hole of the piston head when carrying out a stroke in the closing direction against the force of a control-valve spring and which can contact a contact surface of a valve cap surrounding the closing body when carrying out a stroke in the opening direction. In a region of the axial bore hole for the closing body there is a narrow guidance surface with gaps, which enable a volume flow of hydraulic medium between the high-pressure chamber and the low-pressure chamber. |
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