Crosshead
分类：轮机英语小册子
Sealing between the crankcase and scavenging air boxes is achieved by means of the piston rod stuffing boxes, located in the bottom of the scavenging air boxes. Each stuffing is provied with two sealing rings and three scarper rings.
On each of the two journals of the crosshead, crosshead shoes are mounted which are guided in the builtin crosshead guides of the engine frame.
The crosshead shoes are white metal lined , grooves being cut horizontally in the face of the white metal to ensure an adequate supply of lubricating oil.