Operation
3603−1/A1
Winterthur Gas & Diesel Ltd.
1/ 2
Crosshead Lubrication and Piston Cooling
1. General
Lubricating oil keeps the pistons cool. Bearing oil lubricates the crosshead. Each oil
system operates independently. The oil from each system flows through a double
articulated lever to the crosshead.
2. Crosshead Lubrication
The crosshead lubricating oil flows from the oil inlet (OI, Fig. 1) through the support
(2), the bottom lever (4) and the top lever (5) to the connection piece (6). The
connection piece is attached to the connecting rod (10). The oil enters the ring space
(RS) through the bore (7). The crosshead pin (8) is lubricated through bores in the top
end bearing shell (9). The oil flows through the bore (OB) through the connecting rod
(10) to the bottom end bearing.
TDC
BDC
1
2
OI
3
4
5
6
7
8
RS
9
10
11
12
EXHAUST SIDE
OB
WCH02223
Fig. 1: Articulated Lever − Location
2014