Sludge buildup in the crankpins, blocking oil flow was thought to be the root cause, which resulted in improved oil screens and the implementation of a crankpin plug, as well as revised oil change intervals.
22.
An experimental aircraft engine built before 1910 by Richard Pearse in New Zealand had both pistons and both connecting rods as part of a single rigid assembly that drove the crankpin through a sliding bearing contained within a crosshead.
23.
Inline twins with a 360?crankpin offset or flat-twins can be easily converted into twingles by firing both of the cylinders at the same time and installing a camshaft or camshafts that operate both cylinders'valves in parallel.
24.
However, more recent designs often use a three-throw crankshaft with what are termed " flying arms " between the crankpins, which not only produce the required angular crankpin displacement, but also can be used for balancing purposes.
25.
What separates its effort from most other applications to trademark sounds is that its " V-twin, common-crankpin " engine doesn't produce a sound that can be described in readily understandable terms, such as NBC's musical notes.
26.
When Buick designed a 90?V6 based on their 90?V8, they initially used a simpler three-throw crankshaft laid out in the same manner as the V8 with pairs of connecting rods sharing the same crankpin, which resulted in firing intervals alternating between 90?and 150?
27.
A four-stroke inline-five cannot have shared piston phases amongst its cylinders without also being uneven firing, because 720 degrees ( 4 piston strokes ) divided by 5 is 144 which is not a divisor of 360, so it must always have five crankpin phases.
28.
The Ganz form was used on the Hungarian-built " Les Belles Hongroisses " 2BB2 400 locomotives for the French PO . This had four links forming the triangle, with the two upper vertices mounted to the locomotive frame ( through a short swinging link ) and to the jackshaft crankpin.
29.
On February 1, 1994, the company filed a sound trademark application for the distinctive sound of the Harley-Davidson motorcycle engine : " The mark consists of the exhaust sound of applicant's motorcycles, produced by V-twin, common crankpin motorcycle engines when the goods are in use ".
30.
However, in 1990 Honda set the crankpin phases of each pair of pistons within each bank to be the same ( like a four-stroke'droner': 360?crank ), but with each bank's crankpins offset by 180?to each other ( effectively " splitting " the pins and changing the V-angle, in terms of ignition timing ).
