公开(公告)号：WO2015044501A1

公开(公告)日：2015-04-02

申请号：PCT/FI2013/050932

申请日：2013-09-25

Applicant: WÄRTSILÄ FINLAND OY

Inventor： NYLUND, Ingemar ,  DANBRATT, Johan ,  HARALDSON, Lennart

IPC: F02D41/30 ,  F02D41/40 ,  F02D41/00 ,  F02D19/06 ,  F02D19/10

CPC classification number: F02D41/0025 ,  F02D19/0642 ,  F02D19/0692 ,  F02D19/10 ,  F02D35/023 ,  F02D35/025 ,  F02D41/3047 ,  F02D41/3094 ,  F02D41/402 ,  F02D2200/025 ,  F02D2200/0404 ,  Y02T10/36 ,  Y02T10/44

Abstract: In the method for operating a piston engine, the engine is operated in a first operating mode by introducing main fuel into the cylinders (1) after pilot fuel injection has started, and in a second operating mode by introducing the main fuel into the cylinders (1) before the pilot fuel. One or more indicators of auto- ignition and/or a risk of auto-ignition of the main fuel are monitored and com- pared to predetermined ranges indicating auto-ignition or the risk of auto- ignition. If one or more of the monitored indicators is within the predetermined range, the engine is operated in the first operating mode, and if none of the monitored values is within the predetermined range, the engine is operated in the second operating mode.

Abstract translation: 在活塞式发动机的运转方法中，通过在先导燃料喷射开始之后将主燃料引入到气缸（1）中，通过将主燃料引入气缸（第二运转模式），发动机以第一运行模式运转 1）先导燃料前。 监测一个或多个自燃点和/或主燃料自动点火危险的指示器，并将其与指示自动点火或自动点火风险的预定范围进行比较。 如果一个或多个监视的指示器在预定范围内，则发动机在第一操作模式下操作，并且如果所监视的值都不在预定范围内，则发动机在第二操作模式下操作。

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：WO2015132459A1

公开(公告)日：2015-09-11

申请号：PCT/FI2015/050103

申请日：2015-02-23

Applicant: WÄRTSILÄ FINLAND OY

Inventor： NYLUND, Ingemar ,  DANBRATT, Johan ,  KNIF, Joel ,  HARALDSON, Lennart

IPC: F02B69/02 ,  F02D41/00 ,  F02D19/06 ,  F02D41/30

CPC classification number: F02D41/0025 ,  F02B7/02 ,  F02B7/04 ,  F02B23/0663 ,  F02B69/02 ,  F02D19/0692 ,  F02D41/3094 ,  F02M43/04 ,  F02M2200/44 ,  F02P19/026 ,  Y02T10/125 ,  Y02T10/36

Abstract: Each cylinder (1) of the piston engine is provided with a first fuel injector (4), which is configured for injecting liquid alcohol into the cylinder (1), with a second fuel injector (5), which is configured for injecting liquid hydrocarbonaceous fuel into the cylinder (1), and with means (7, 14) for heating air/fuel mixture in the cylinder (1) for aiding the ignition of the liquid alcohol.

Abstract translation: 活塞发动机的每个气缸（1）设置有第一燃料喷射器（4），其构造成用于将液体醇注入到气缸（1）中，具有第二燃料喷射器（5），其构造成用于将液体烃类 燃料进入气缸（1），以及用于加热气缸（1）中的空气/燃料混合物的装置（7,14），用于帮助液体酒精的点燃。

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。