Compression ratio

From International Dictionary of Marine Aids to Navigation
Revision as of 01:23, 25 February 2009 by Oferiks (talk | contribs) (1 revision)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search


The ratio (greater than unity) of the volumes of the spaces within a cylinder enclosed by the extreme positions of the piston.

Note: 1 The closed extreme position of the piston is called top dead centre.

Note: 2 A higher compression ratio produces a larger power output for a given fuel consumption.

Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM