A Study of Rotary Valve for a Single Cylinder Engine

Paper #:
  • 1999-01-3322

Published:
  • 1999-09-28
Citation:
Muroki, T., Moriyoshi, Y., and Sekizuka, S., "A Study of Rotary Valve for a Single Cylinder Engine," SAE Technical Paper 1999-01-3322, 1999, https://doi.org/10.4271/1999-01-3322.
Pages:
11
Abstract:
The authors have experimentally produced a new type of Rotary Valve (ca11ed R.V.) which has a unique gas sealing mechanism. In this study, first, the mechanical loss in the valve train was measured comparing to that of the poppet valve drive train, and it was found that the mechanical loss of rotary valve train is much lower level. Secondary, three dimensional numerical calculation of the flow field from the intake-port to in-cylinder during the intake stroke was carried out. As a result, it was found that the flow field is very complicated due to the interaction between the moving piston and valve and that the profiles of “valve notch” and intake port affect the flow field and then, the modification of profile with a round edge form of the “notch” enables higher mass flow rate.
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