Gas exchange valve for piston engine has valve stem and spring causing valve to rotate when axial length is altered in at least one direction

摘要

The gas exchange valve (1) has a valve stem (3) in working connection with the valve drive and connected to a valve spring (8), so that when the axial length changes in at least one direction, the valve is rotated and the spring plate (7) connected to the stem is supported. The plate can rotate on the valve stem and can be moved axially against a return spring (18).