Light metal cylinder head with valve seat insert
Light weight hollow valve assembly
Light-alloy cylinder head for reciprocating piston internal comb
Lightweight composite engine valve
Lightweight engine poppet valve
Lightweight valve
Lip sealing ring in an internal combustion engine
Liquid metal cooled internal combustion engine valves with gette
Low emission combustion system for internal combustion engine us
Lower guide valve seal
Lubricating and sealing system for internal combustion engines
Lubrication control
Lubrication system for rotary valve