In a world searching for a poppet valve substitution in 4 cycle engines, rotary valves, sleeve valves etc. all had their supporters. This is a new idea, well, new to me, it was patented in 1919 and shown at the London Motor Show that year. The oscillating or rocking idea was simple enough, the actuating mechanism wouldn't be complicated and with piston ring technology sorted out pretty well, you'd think we might have seen more of this arrangement.
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| Classic MotorCycle, Dec 89 |
That's quite clever. As you say, sealing issues were under control. Simplicity itself compared to sleeve valves. I'd water cool the head with passages through the pivots.
ReplyDeleterdguy