Boats
In 1905 car builder Delahaye had experimented with a DOHC marine racing engine with six valves per cylinder. This Delahaye Titan engine was a massive 5190 cid (85.0-liter) four-cylinder that produced 350 bhp (0.07 bhp/cid). It allowed the motor boat Le Dubonnet piloted by Emile Dubonnet to set a new world's speed record on water, reaching 33.80 mph (54.40 km/h) on the lake at Juvisy, near Paris, France.
An example of modern multi-valve engines for small boats is the Volvo Penta IPS Series. These joystick-operated seawater-cooled inboard diesel engines use combined charging (turbo and supercharger, except IPS450) with aftercooler, common rail fuel injection and DOHCs with hydraulic 4-valve technology. Propshaft power ranges from 248 to 850 bhp (185 to 634 kW; 251 to 862 PS) (highest efficiency 59.7 kW/liter for IPS400 3.7-liter straight-4 diesel). Multiple units can be combined.
Read more about this topic: Multi-valve
Famous quotes containing the word boats:
“Fortune brings in some boats that are not steer’d.”
—William Shakespeare (1564–1616)
“Away down the river,
A hundred miles or more,
Other little children
Shall bring my boats ashore.”
—Robert Louis Stevenson (1850–1894)
“Three miles long and two streets wide, the town curls around the bay ... a gaudy run with Mediterranean splashes of color, crowded steep-pitched roofs, fishing piers and fishing boats whose stench of mackerel and gasoline is as aphrodisiac to the sensuous nose as the clean bar-whisky smell of a nightclub where call girls congregate.”
—Norman Mailer (b. 1923)