Variable travel valve apparatus for an internal combustion engine

An apparatus, comprising:

• a cylinder head having an interior surface defining a valve pocket, the cylinder head configured to be coupled to a cylinder and a gas manifold, a portion of the valve pocket including sealing portions, the sealing portions defining a plurality of cylinder flow passages;
• and
• a valve member having a portion defining a plurality of valve flow passages, the valve member configured to be disposable within the valve pocket such that the valve member is movable within the valve pocket along a longitudinal axis of the valve member, the apparatus having a first configuration, a second configuration, and a third configuration,
• in the first configuration, each valve flow passage from the plurality of valve flow passages is in fluid communication with the cylinder and the gas manifold, the plurality of valve flow passages in fluid communication with the cylinder via the plurality of cylinder flow passages,
• in the second configuration, each valve flow passage from the plurality of valve flow passages is fluidically isolated from the cylinder via the sealing portions of the valve pocket, and
• in the third configuration, an opening to each of the plurality of valve flow passages is at least partially obstructed by the sealing portions of the valve pocket such that each valve flow passage from the plurality of valve flow passages is in fluid communication with the cylinder and the gas manifold, the valve member being biased toward the third configuration.