| 摘要 |
FIELD: mechanical engineering; internal combustion engines. ^ SUBSTANCE: to prevent zone of contact of cam and tappet coming to edge of working surface of tappet, peripheral part of tappet working surface is made in form of blunt truncated cone, with apex angle from 140° to 170°, which is smoothly rounded off, with flat middle part of working surface. ^ EFFECT: enlarged optimization of valve movement, reduced friction losses and wear of parts of valve-actuating mechanism. ^ 1 dwg |
