| 摘要 |
A rotary valve for an internal combustion engine, of the hollow cylindrical type, characterized in that there are provided in a bore of a cylinder head, in which the valve rotates, oil applicators arranged on either side of openings in the valve, each applicator being loaded by a spring against the surface of the valve at a position such that each applicator bears against the surface of that part of the valve lying between the outer axial extremities of the openings and an adjacent circumferential seal, each applicator allowing flow of oil through it onto the surface of the valve by means of one or more small internal passages.
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