Seal device for valve rod of an internal-combustion engine
Sealing arrangement for a rotary slide valve
Sealing element for a rotary timing system of internal-combustio
Sealing means for rotary valves
Sealing ring for reciprocating machine parts
Sealing structure of a rotary valve in an internal combustion en
Secondary combustion chamber systems and apparati for internal c
Selective asymmetric swirl intake port
Self locking valve guide
Self locking valve seat insert
Self-sealing rotary aspiration system for internal combustion en
Semi-rotating valve assembly for use with an internal...
Shielded valve
Shrouded valve for internal combustion engine
Shutter valve system for internal combustion engines
Sintered alloy valve seat and method for manufacturing the same
Sleeve-type rotary valve for an internal combustion engine
Sliding stem seal, particularly for valve stems
Slotted cylindrical tube rotary valve assembly
Spark ignition engine having combustion chamber provided with ve