公开(公告)号：WO2009109694A2

公开(公告)日：2009-09-11

申请号：PCT/FI2009/050124

申请日：2009-02-16

Applicant: WÄRTSILÄ FINLAND OY ,  SILLANPÄÄ, Hannu ,  HATTAR, Christer ,  CAFARI, Alberto ,  BIANCHI, Giuseppe ,  ZERNETTI, Gianpaolo ,  TREMULI, Paolo

Inventor： SILLANPÄÄ, Hannu ,  HATTAR, Christer ,  CAFARI, Alberto ,  BIANCHI, Giuseppe ,  ZERNETTI, Gianpaolo ,  TREMULI, Paolo

IPC: F02B19/00

CPC classification number: F02B19/08 ,  F02B19/10 ,  F02B19/1014 ,  F02B19/1023 ,  Y02T10/125

Abstract: The invention relates to a pre-chamber arrangement for a cylinder (1) of an internal combustion engine fitted for premixed combustion (Otto cycle), the pre- chamber arrangement including a first chamber (7) for mixing and igniting of the fuel and a second chamber (8) of substantially smaller volume for communication between the first chamber (7) and the main combustion chamber (4) of the cylinder (1), the first chamber (7) being provided with pilot injection means (9) and having a chamber top substantially opposite to the second chamber (8). The first chamber (7) has substantially oval shape with curved walls between the chamber top and the second chamber (8). The second chamber (8) is asymmetrically positioned with regard to the first chamber (7) so as to provide a tumble flow motion (A) in the first chamber (7) for the gaseous fuel pressed from the main combustion chamber (4) and guided by curved wall of the first chamber (7) towards and past the fuel of pilot injection means (9) to be ignited.

Abstract translation: 本发明涉及一种用于预混合燃烧（Otto循环）的内燃机的气缸（1）的预腔室装置，该预制室装置包括用于混合和点燃燃料的第一室（7）和 第二室（8）具有基本上较小的体积，用于在第一室（7）和气缸（1）的主燃烧室（4）之间连通，第一室（7）设有先导喷射装置（9） 基本上与第二室（8）相对的室顶部。 第一腔室（7）具有大致椭圆形的形状，在腔室顶部和第二腔室（8）之间具有弯曲的壁。 第二室（8）相对于第一室（7）不对称地定位，以便在第一室（7）中为从主燃烧室（4）压缩的气体燃料提供滚筒流动（A），以及 由第一腔室（7）的弯曲壁引导并朝向要点燃的引燃喷射装置（9）的燃料喷射。

公开(公告)号：WO2009060119A1

公开(公告)日：2009-05-14

申请号：PCT/FI2008/050591

申请日：2008-10-22

Applicant: WÄRTSILÄ FINLAND OY ,  GRANLUND, Ulf ,  SILVONEN, Aulis ,  LIAVÅG, Lars Ola ,  SAARI, Petri ,  SILLANPÄÄ, Hannu

Inventor： GRANLUND, Ulf ,  SILVONEN, Aulis ,  LIAVÅG, Lars Ola ,  SAARI, Petri ,  SILLANPÄÄ, Hannu

IPC: F02B19/10 ,  F02B19/16

CPC classification number: F02B19/1004 ,  F02B19/16 ,  F02B19/165 ,  Y02T10/125

Abstract: The invention relates to a prechamber arrangement to be fitted into the cylinder head (2) of a combustion engine (1), comprising a separate body part(4) and a nozzle part (5), which together mainly define a prechamber (3), which is connected to a main combustion space (7) of a cylinder (6) through nozzle openings (5a) of the nozzle part (5). According to the invention, the body part(4) is supported on the cylinder head (2) and provided with joint surfaces (4b) for supporting the nozzle part (5) on the body part(4).

Abstract translation: 本发明涉及一种装配在内燃机（1）的气缸盖（2）中的预燃室装置，包括独立的主体部分（4）和喷嘴部分（5），它们一起主要限定一个预燃室（3） ，其通过喷嘴部（5）的喷嘴开口（5a）连接到气缸（6）的主燃烧空间（7）。 根据本发明，主体部分（4）支撑在气缸盖（2）上并且设置有用于将主体部分（4）上的喷嘴部分（5）支撑的接合表面（4b）。

公开(公告)号：WO2013007863A2

公开(公告)日：2013-01-17

申请号：PCT/FI2011/050643

申请日：2011-07-08

Applicant: WÄRTSILÄ SWITZERLAND LTD. ,  NYLUND, Ingemar ,  OTT, Marcel ,  SILLANPÄÄ, Hannu

Inventor： NYLUND, Ingemar ,  OTT, Marcel ,  SILLANPÄÄ, Hannu

IPC: F02B7/06 ,  F02B19/10 ,  F02B19/12 ,  F02B19/14 ,  F02B25/04

CPC classification number: F02B7/06 ,  F02B19/108 ,  F02B19/1095 ,  F02B19/12 ,  F02B19/14 ,  F02B25/04 ,  F02B43/10 ,  F02B2075/025 ,  Y02T10/125 ,  Y02T10/32 ,  Y02T10/36

Abstract: The invention relates a two-stroke internal combustion engine (10) comprising at least one cylinder (20) with a piston (24) arranged reciprocateably between its top dead center and bottom dead center, and a cylinder cover (26) defining a combustion chamber (22), oxygen containing gas inlet (18) in the lower part of the cylinder (20) to be open into the combustion chamber (22) at least while the piston is at its bottom dead center position, a gaseous fuel inlet (30) arranged in the cylinder between the oxygen containing gas inlet (18) and the cylinder cover(26), and an exhaust valve (28) arranged to the cylinder cover at a center axis of the cylinder. The cylinder cover(26) is provided with pilot ignition pre-chambers (36) opening into the combustion chamber (22) through pre-chamber ports (34). Invention relates also to method of operating a two-stroke engine (10).

Abstract translation: 本发明涉及一种二冲程内燃机（10），其包括至少一个气缸（20）和可在其上止点和下止点之间往复运动的活塞（24），以及气缸 至少在活塞位于其下止点时，在气缸（20）下部通入燃烧室（22）的含氧气体入口（18） 位于含氧气体入口（18）和气缸盖（26）之间的气缸中的气体燃料入口（30）以及在气缸的中心轴线处布置于气缸盖的排气门（28）。 气缸盖（26）设置有通过预燃室端口（34）通向燃烧室（22）的引燃点火预燃室（36）。 本发明还涉及操作二冲程发动机（10）的方法。

公开(公告)号：WO2011101541A1

公开(公告)日：2011-08-25

申请号：PCT/FI2011/050140

申请日：2011-02-15

Applicant: WÄRTSILÄ FINLAND OY ,  KIVI, Jouni ,  SILLANPÄÄ, Hannu ,  SILVONEN, Aulis

Inventor： KIVI, Jouni ,  SILLANPÄÄ, Hannu ,  SILVONEN, Aulis

IPC: F02B19/10 ,  F02B19/12 ,  F02B19/16 ,  F02M21/02

CPC classification number: F02B19/1004 ,  F02B19/12 ,  F02B19/16 ,  F02B19/165 ,  F02D19/10 ,  F02M21/0275 ,  F02M21/0284 ,  Y02T10/125 ,  Y02T10/32 ,  Y02T10/36

Abstract: A pre-chamber arrangement to be fitted onto the cylinder head (2) of a combustion engine (1), which comprises a separate body portion (4) and nozzle portion (5), which are supported by one another and which together substantially define the pre-chamber (3), which is connected to a main combustion area (7) of the cylinder (6) through nozzle openings (5a) of the nozzle portion (5). The pre-chamber arrangement further comprises a separate pre-chamber bracket (8), which is arranged between the cylinder head (2) and the pre-chamber (3) and through which the body portion (4) and the nozzle portion (5) are supported on the cylinder head (2).

Abstract translation: 安装在内燃机（1）的气缸盖（2）上的预腔室装置，其包括分开的主体部分（4）和喷嘴部分（5），它们彼此支撑并且一起基本上限定 所述前室（3）通过所述喷嘴部（5）的喷嘴开口（5a）连接到所述气缸（6）的主燃烧区域（7）。 所述预制室内装置还包括分开的预置室支架（8），其设置在所述气缸盖（2）和所述预制室（3）之间，所述主体部分（4）和所述喷嘴部分（5） ）支撑在气缸盖（2）上。