公开(公告)号：WO1994029580A1

公开(公告)日：1994-12-22

申请号：PCT/DK1993000284

申请日：1993-08-31

Applicant: MAN B & W DIESEL A/S

Inventor： MAN B & W DIESEL A/S ,  LINDQUIST, Henning

IPC: F02B75/06

CPC classification number: F02B75/20 ,  F02B3/06 ,  F02B75/06 ,  F02B2075/025 ,  F02B2075/1832 ,  F02F2007/0097

Abstract: An internal combustion engine, in particular a large two-stroke crosshead engine for propelling a ship, has a number of cylinders (Cn) each of which has a piston connected with an associated throw (2, 3) in a crankshaft (1) common to the cylinders, the throw being so connected through main journals journalled in main bearings (MBn) that adjacent throws have a predetermined mutual angularity ( alpha ) and that said angularity is varying for at least some of the neighbouring throws. A control device doses a larger amount of oil to cylinders (Cn) whose throw (2, 3) forms a large angle ( alpha ) with the adjacent throws than is dosed to the cylinders whose throw forms the smallest angle with a neighbouring throw. In an eight-cylinder engine the control device may dose most oil to cylinders Nos. 1, 2, 7 and 8. In a twelve-cylinder engine the control device may dose least oil to cylinders Nos. 9 and 10.

Abstract translation: 内燃机，特别是用于推进船舶的大型二冲程十字头发动机，具有多个气缸（Cn），每个气缸具有与曲轴（1）中的相关联的投掷（2,3）共同连接的活塞 通过在主轴承（MBn）中轴颈连接的主轴颈相互连接，使得相邻的抛物线具有预定的相互角度（α），并且所述角度对于至少一些相邻的抛物线而变化。 一个控制装置将更大量的油剂喷射到气缸（Cn），其投掷（2,3）与相邻投射形成大角度（α），而不是投掷到与其相邻投掷形成最小角度的气缸。 在八缸发动机中，控制装置可以将大多数油剂喷涂到No.1,2,7和8号油缸。在十二缸发动机中，控制装置可以将油量最小化到第9和第10缸。