Engine of reciprocating piston type
AssigneeRicardo Consulting Engineers Limited
InventorIan David Johnstone
Life of this patent
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Abstract
An engine of reciprocating piston type includes a cylinder block (4) with one or more cylinders (2), each of which receives a respective piston (10) and is defined by a respective cylinder barrel (8), which is integral with the reminder of the cylinder block. The outer surface of each cylinder barrel (8) carries a plurality of substantially circumferential discontinuous reinforcing ribs, each comprising a plurality of elongate projections (12) spaced apart by gaps (14). Each projection (12) in each rib is in registry with a gap in the or each adjacent rib, when viewed in the direction of the length of the associated cylinder barrel.
Claims20
An engine of reciprocating piston type including a cylinder block which includes one or more cylinders, each of which reciprocally receives a respective piston and is defined by a respective cylinder barrel which is integral with the remainder of the cylinder-block, the outer surface of each cylinder barrel carrying a plurality of substantially circumferential reinforcing ribs, each rib comprising a plurality of elongate projections spaced apart by gaps, each projection in each rib being in registry with a gap in the or each adjacent rib, when viewed in the direction of the length of the associated cylinder barrel.
Dependencies are inferred from the claim text.