公开(公告)号：US4519365A

公开(公告)日：1985-05-28

申请号：US581017

申请日：1984-02-17

Applicant: Mario Anfusio

Inventor： Mario Anfusio

IPC: F01L1/26 ,  F02B1/04 ,  F02F1/24 ,  F02F1/42 ,  F02B15/00

CPC classification number: F01L1/265 ,  F02F1/4214 ,  F02B1/04 ,  F02B2275/18 ,  F02F2001/245

Abstract: A reciprocating internal combustion engine has a head structure which includes a cylinder head and a separate inserted plate clamped between the cylinder head itself and the engine block. The combustion chamber of the or each cylinder is formed in the cylinder head in a position centered on the axis of the respective cylinder and the inserted plate has an aperture centered on the axis of the cylinder which puts the cylinder itself into communication with its combustion chamber. In correspondence with the or each cylinder, the inserted plate is formed with at least one first pair of opposing valve seats facing into the communication aperture, and corresponding inlet and/or exhaust ducts. These seats have associated mushroom valves with stems which extend through corresponding holes in the inserted plate and are slidable in the cylinder head. The cylinder head, in correspondence with the or each cylinder, is formed with at least one second pair of opposing valve seats facing into the combustion chamber, and corresponding inlet and/or exhaust ducts. These seats have associated mushroom valves with stems which are slidable in the cylinder head. The axes of the two pairs of valves are substantially coplanar. The crown of the or each piston has a projection of a form such as substantially to fill the respective communication aperture when the piston is at top dead-center.

Abstract translation: 往复式内燃机具有头部结构，其包括气缸盖和夹在气缸盖本身和发动机缸体之间的单独插入板。 每个气缸的燃烧室形成在气缸盖中的位于相应气缸的轴线的中心位置，并且插入的板具有以气缸轴线为中心的孔，其使气缸自身与其燃烧室连通 。 与该气缸或每个气缸相对应，插入板形成有至少一对面对着连通孔的相对的阀座以及相应的入口和/或排气管。 这些座椅具有相关联的蘑菇阀，其具有杆，其延伸穿过插入板中的相应孔并且可在气缸盖中滑动。 与气缸或每个气缸相对应的气缸盖形成有至少一对第二对相对的阀座，面对燃烧室，以及相应的入口和/或排气管。 这些座椅具有相关联的蘑菇阀，其具有可在气缸盖中滑动的杆。 两对阀的轴线基本上共面。 该活塞或每个活塞的冠部具有形状的突起，例如当活塞处于上止点时基本上填充相应的连通孔。