Στροφαλος,μοιρες??

[arisrodolivos]

Οτι λεει ο τιτλος.Πως ο στροφαλος εχει πχ 180 μοιρες,και αλλαζει ο ηχος
οριζοντια δεν ειναι ο στροφαλος?

[toyar]

οριζοντια ειναι
οι μοιρες αφορουν τις γωνιες σφηνωσης των κομβιων των διωστηρων μεταξυ τους
393579

[Akalestos]

οριζοντια ειναι
οι μοιρες αφορουν τις γωνιες σφηνωσης των κομβιων των διωστηρων μεταξυ τους
393579

Ωραιο γραφημα toyar :beer:

[ΓιώργοςΤΤ]

Εντυπσιακής ακρίβειας περιγραφή σε 2 σειρές απόλυτα κατανοητό σχήμα! Μπράβο!

[bros400pgm]

Το τελευταιο διαγραμμα ευκολα περνιεται για 2χρονο μοτερ :D

[arisrodolivos]

Ευχαριστω toyar κατατοπιστικοτατος...:sun:

[buckley]

Ευχαριστω toyar κατατοπιστικοτατος (στα 2κύλινδρα)...:sun:

Βάλε και Laverda 3cyl μάστορα...

[toyar]

Laverda three-cylinder engines up to 1982 featured a 180-degree crankshaft arrangement, in which the center piston is at the top of its stroke when the two outer pistons are at the bottom. This purposefully out-of-phase design gave the 1,000 cc Laverdas a distinctive character. The engine evolved into a smoother, rubber mounted 120 degree configuration in 1982.

απο εδω https://en.wikipedia.org/wiki/Laverda

[telegonos]

A ωστέ αλήθεια ήταν για το flatplane τρικύλινδρο -αρχικά- της Laverda, όντως το είχαν βγάλει έτσι.

:uplate:

Φήμες λένε, ότι το βγάλαν -αρχικά- έτσι, γιατί δεν είχαν κατάλληλες εργαλειομηχανές για crossplane στροφαλοφόρους όπως ο ανά 120 μοίρες, και αναγκαστικά το φτιάξανε flatplane με κομβία ανά 180 μοίρες. Αληθεύουν άραγε;

[basilis_k6]

είχα απορία αν υπάρχει κανένα με 360 και οντως υπάρχουν

Many small motorcycles of less than 250 cc use a 360° crankshaft as the vibration issue was less significant; examples include Honda's CB92, CB160, and CM185. Larger twins over 500 cc, such as the Yamaha's XS650 and TX750, have used 360° crankshafts, but such parallel twins tend to have balance shafts.[6] The Honda CB-series in the 250 to 500 cc range used 180° crankshafts. Both the 1973 Yamaha TX500 and the 1977 Suzuki GS400 had a 180° crankshaft and a balance shaft, while the 1974 Kawasaki KZ400 used a 360° crankshaft and a balance shaft. The 1978 to 1984 Honda CB 250 N and CB 400 N are 360° designs, too; later Honda straight twins from 1993 onward until today are, again, 180° designs, with the exception of the new 700cc engine that power the CTX700.

A 180° crankshaft engine suffers fewer pumping losses than a 360° twin, as displacement in the crankcase stays roughly constant. However, a 180° engine requires a separate ignition system, points or otherwise, for each cylinder. The 360° twins can have a single ignition system for both cylinders, with a wasted spark on each cylinder's exhaust stroke. The BMW F800 parallel twin motorcycle is a 360° design. Inherent vibration in the BMW F800 means its engine is limited to 9,000 rpm. BMW reduced the vibration using a third "vestigial" connecting rod to act as a counterbalance.[41] wikipedia

393606

edit: gif not working... duh :mad:

[OldMan]

Βάλε και Laverda 3cyl μάστορα...
Καποιοι ειναι μεγαλα τσογλανια, τελικα..

[RENZ]

είχα απορία αν υπάρχει κανένα με 360 και οντως υπάρχουν

Many small motorcycles of less than 250 cc use a 360° crankshaft as the vibration issue was less significant; examples include Honda's CB92, CB160, and CM185. Larger twins over 500 cc, such as the Yamaha's XS650 and TX750, have used 360° crankshafts, but such parallel twins tend to have balance shafts.[6] The Honda CB-series in the 250 to 500 cc range used 180° crankshafts. Both the 1973 Yamaha TX500 and the 1977 Suzuki GS400 had a 180° crankshaft and a balance shaft, while the 1974 Kawasaki KZ400 used a 360° crankshaft and a balance shaft. The 1978 to 1984 Honda CB 250 N and CB 400 N are 360° designs, too; later Honda straight twins from 1993 onward until today are, again, 180° designs, with the exception of the new 700cc engine that power the CTX700.

A 180° crankshaft engine suffers fewer pumping losses than a 360° twin, as displacement in the crankcase stays roughly constant. However, a 180° engine requires a separate ignition system, points or otherwise, for each cylinder. The 360° twins can have a single ignition system for both cylinders, with a wasted spark on each cylinder's exhaust stroke. The BMW F800 parallel twin motorcycle is a 360° design. Inherent vibration in the BMW F800 means its engine is limited to 9,000 rpm. BMW reduced the vibration using a third "vestigial" connecting rod to act as a counterbalance.[41] wikipedia

393606

edit: gif not working... duh :mad:

Και τα εγγλέζικα '60-'70-'80, 360 στρόφαλο είχαν...

[buckley]

Καποιοι ειναι μεγαλα τσογλανια, τελικα..

Για τίποτα πιτσιρικάδες θα μιλάς φαντάζομαι ...
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