Patent ID: 11959405
Assignee: JAGUAR LAND ROVER LIMITED
Field: Environmental technology (Chemistry)
Classification: CPC F  Y | IPC F

Claim 0:
1. A system comprising a cylinder head for an internal combustion engine, a valve seat that is an exhaust valve seat for a poppet valve of the internal combustion engine, and a valve seat receiving portion configured to receive the valve seat, wherein the poppet valve comprises a head and a stem behind the head, the valve seat comprising: an aperture configured to form a seal with the head of the poppet valve when the poppet valve is in a closed position; and a peripheral body defining, at least in part, a plurality of ports shaped and sized to enable injection of liquid or gas from a cylinder head of the internal combustion engine into a gas stream behind the head of the poppet valve; wherein the peripheral body and/or the cylinder head comprises one or more grooves, each groove creating part of one of the plurality of ports when the valve seat is fitted to the cylinder head, and the cylinder head creating another part of said one of the plurality of ports;
a manifold configured to distribute the liquid or gas to different port locations around the valve seat receiving portion; and wherein at least one of the plurality of ports is shaped so that its cross-sectional area where gases enter the at least one of the plurality of ports is greater than where the gases are injected into the aperture to provide a venturi effect to increase velocity of the gas or liquid injected into the aperture.