The all - new Porsche Doppelkupplung (PDK) eight - speed twin - clutch automatic transmission delivers 28 - percent
less friction loss than its predecessor, and shifts just as smoothly.
Not exact matches
«As a result there's
less friction to the customer and most importantly
less cost and
loss for merchants,» he says.
«You get
less than 10 percent
loss of velocity, and
friction from the bullet passing out creates enough heat to reseal the window,» says Fred Williams, Labock's vice president.
This also limits the maximum RPM of the engine because there are increased
friction losses due to increased speed of the piston at the same RPM when compared to an engine with
less stroke.
And although a turbo engine can't have the super-high compression ratio of Mazda's naturally aspirated Skyactiv engines, it boasts 1.6 times
less mechanical
loss as a result of
less internal
friction.
CVTs are
friction devices and have continuous
friction type
loss and wear whereas the dual clutch transmission only exhibit
friction loss and wear during the actual shift which takes
less than a second.