Abstract: This invention relates to a valve arrangement in an engine, comprising a valve with a valve plate and a stem like portion having an upper portion and lower portion, a valve control mechanism, the upper portion forms a hollow annular body extending coaxially with the extension of the stem like portion, the valve plate is connected to the lower portion to form a gap between the valve plate and the upper portion to allow for the gases to be transported past the valve plate into or out from the inside of the hollow annular body, the upper end of the annular body is open and the hollow annular body at its outer side is arranged with at least one first interacting device arranged to interact with at least one second interacting device of the valve control mechanism to facilitate movement and positioning.

Abstract: This invention relates to a valve arrangement in a combustion engine for controlling inlet and outlet of gas mixtures, comprising a valve (1) slidably arranged within a housing (2) in a cylinder head (3) of the combustion engine, said valve (1) including a valve plate (10) and a stem like portion (IA, IB), said stem like portion (IA, IB) having an upper portion (IB) fixedly attached with its lower end to, a lower portion (IA), said lower portion (IA) having said valve plate (10) attached thereto which valve plate interacts with a valve seat (30) to allow for outlet and inlet of gases respectively, a valve control mechanism (5, 6) to control the movement and/or position of said valve (1), wherein said upper portion (IB) forms a hollow annular body (19) extending coaxially with the extension of said stem like portion to allow for said gases to be transported through the valve (1) in a channel within and formed in said annular body (19), the valve plate (10) is connected to the lower portion (IA) to form a gap b