Valve for IC engine combustion chamber - has second pressure chamber, connected to first chamber, and limited by pressure piston, subject to combustion chamber pressure

摘要

The valve body is moved against a valve seat by pressure forces, which are generated by a hydraulic medium, which acts on a piston. The piston has a pressure chamber. This has an associated control valve for selective pressure increase and reduction. There is a hydraulic bias assembly to hold the valve in a closed position against combustion chamber pressure. The hydraulic assembly contains a pressure chamber (20), which is connected to the first connection chamber (3). The second chamber is limited by a pressure piston (22), which is subjected to the combustion chamber pressure. ADVANTAGE - Allows simplified construction of valve assembly.