公开(公告)号：WO2011023852A1

公开(公告)日：2011-03-03

申请号：PCT/FI2010/050665

申请日：2010-08-25

Applicant: WÄRTSILÄ FINLAND OY ,  HARALDSON, Lennart ,  ANDERSSON, Lennart

Inventor： HARALDSON, Lennart ,  ANDERSSON, Lennart

IPC: F02P3/045 ,  F02P17/10 ,  F02P17/12

CPC classification number: F02P17/12 ,  F02P5/1512 ,  F02P2017/121 ,  Y02T10/46

Abstract: The present invention relates to a method of a reciprocating combustion engine with at least two cylinders. Primary voltage is taken from a voltage supply and transformed to secondary voltage suitable for ignition purposes. The invention is based on an adaptive control method and means of a combustion engine ignition system. The spark plugs with the highest secondary voltage demand are recognised by continuously measuring the actual secondary voltage demand. The ignition timing is advanced (503) for individual cylinders before the secondary voltage demand reaches a level where misfire can occur.

Abstract translation: 本发明涉及具有至少两个气缸的往复式内燃机的方法。 初级电压取自电压源并转换为适合于点火目的的二次电压。 本发明基于内燃机点火系统的自适应控制方法和装置。 具有最高二次电压需求的火花塞通过连续测量实际的二次电压需求来识别。 在二次电压需求达到可能发生失火的水平之前，单个气缸的点火正时提前（503）。

公开(公告)号：WO2011154606A1

公开(公告)日：2011-12-15

申请号：PCT/FI2011/050536

申请日：2011-06-08

Applicant: WÄRTSILÄ FINLAND OY ,  HARALDSON, Lennart ,  SUNDÉN, Hans ,  VILHELMSSON, Fredrik

Inventor： HARALDSON, Lennart ,  SUNDÉN, Hans ,  VILHELMSSON, Fredrik

IPC: F02F1/00 ,  C23C4/06

CPC classification number: F02F1/004 ,  C23C4/01 ,  C23C4/06 ,  C23C30/00 ,  F02F2001/006

Abstract: A cylinder liner (1) of a reciprocating engine, the cylinder liner (2) having an inner surface (3) acting as a running surface (4) for piston rings (5), which running surface (4) comprises an upper portion (U) and a lower portion (L). The upper portion (U)includes at least a top dead centre region of a topmost piston ring (5). Only the upper portion (U) of the running surface (4) is provided with a coating(7) of metal matrix composite reinforced with ceramic particles.

Abstract translation: 一种往复式发动机的气缸套（1），气缸套（2）具有用作活塞环（5）的运行表面（4）的内表面（3），该运行表面（4）包括上部 U）和下部（L）。 上部（U）至少包括顶部活塞环（5）的上止点区域。 只有运行表面（4）的上部（U）设置有用陶瓷颗粒增强的金属基复合材料的涂层（7）。

公开(公告)号：WO2010070199A1

公开(公告)日：2010-06-24

申请号：PCT/FI2009/050994

申请日：2009-12-10

Applicant: WÄRTSILÄ FINLAND OY ,  ANDERSSON, Lennart ,  HARALDSON, Lennart

Inventor： ANDERSSON, Lennart ,  HARALDSON, Lennart

IPC: F02D37/02 ,  F02D41/00 ,  F02D41/14 ,  F02B37/18

CPC classification number: F02D41/0007 ,  F02B37/18 ,  F02D37/02 ,  F02D41/042 ,  F02D41/1446 ,  F02D41/146 ,  F02D41/1461 ,  F02D2250/36 ,  Y02T10/144

Abstract: The invention relates to a method for combustion engine pollution control. NO x value of the exhaust gases from the engine is measured (207) and the lambda value in the engine operation is controlled in response to the measured NO x value. In case where the measured NOx value is over the reference value a signal to decrease the NOx emissions by way of increasing the lambda value through a waste-gate control device (28) is outputted by a NO x control (23). An ignition timing offset signal for retarding ignition timing is outputted (202) to an ignition timing control function (25) by the NO x control (23), if the waste-gate control device (28) is unable to lower the NOx value to a targeted NO x level.

Abstract translation: 本发明涉及一种内燃机污染控制方法。 测量来自发动机的废气的NOx值（207），并且响应于测量的NOx值来控制发动机操作中的λ值。 在测量的NOx值超过参考值的情况下，通过废气门控制装置（28）通过增加λ值来减少NOx排放的信号由NOx控制（23）输出。 如果废气门控制装置（28）不能将NOx值降低到一个，则用于延迟点火正时的点火正时偏移信号通过NOx控制（23）被输出（202）到点火正时控制功能（25） 目标NOx水平。