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:
“You men have proved that PT boats have some value in this war. Washington wants you back in the States to build them up. Those are my orders.”
—Frank W. Wead (1895?–1947)
“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)