公开(公告)号：US20170101922A1

公开(公告)日：2017-04-13

申请号：US14877183

申请日：2015-10-07

Applicant: Caterpillar Inc.

Inventor： Andrew Loetz ,  Yongxian Gu

IPC: F02B19/08 ,  F02P13/00

CPC classification number: F02B19/08 ,  F02B19/12 ,  F02B19/16 ,  F02P9/007 ,  F02P13/00 ,  Y02T10/125

Abstract: In an aspect of the present disclosure, an internal combustion engine is disclosed. The internal combustion engine has a main combustion chamber, a prechamber, an insert in the prechamber, a fuel valve, and an ignition plug. The main combustion chamber is in fluid communication with the prechamber. The prechamber defines an upper volume and a lower volume about a central plane passing through a midpoint of the prechamber. The fuel valve is disposed in the upper volume and is configured to introduce charge into the prechamber. The ignition plug is configured to ignite the charge. The insert is disposed at least partially in the upper volume of the prechamber to promote mixing of the charge.

公开(公告)号：US20160160741A1

公开(公告)日：2016-06-09

申请号：US15045280

申请日：2016-02-17

Applicant: Caterpillar Inc.

Inventor： Yongxian Gu ,  Phillip J. Houtz ,  Keith A. IntVeld

IPC: F02B7/06 ,  F02B43/10 ,  F02B19/10

CPC classification number: F02B7/06 ,  F02B7/08 ,  F02B19/1004 ,  F02B19/1023 ,  F02B19/108 ,  F02B43/10 ,  F02B2043/103 ,  F02B2201/064 ,  F02D19/10 ,  Y02T10/125 ,  Y02T10/32 ,  Y02T10/36

Abstract: A dual fuel engine is provided. The dual fuel engine includes an engine cylinder that is adapted to house a piston. A cylinder head is coupled with the engine cylinder. An inlet valve is adapted to inject a second fuel into the engine cylinder. A pre-combustion chamber is adapted to be coupled within the cylinder head to receive a first fuel via a micro-pilot fuel injector. As piston moves towards a top dead center pushing a portion of the second fuel into the pre-combustion chamber via a communication channel, the piston compresses the portion of the second fuel and the first fuel in the pre-combustion chamber for igniting the first fuel and combusting the second fuel. This generates a combustion flame. The pre-combustion chamber is adapted to allow the combustion flame to propagate from the pre-combustion chamber to the engine cylinder via the communication channel.

Abstract translation: 提供双燃料发动机。 双燃料发动机包括适于容纳活塞的发动机气缸。 气缸盖与发动机气缸联接。 入口阀适于将第二燃料喷射到发动机气缸中。 预燃烧室适于联接在气缸盖内，以经由微型先导燃料喷射器接收第一燃料。 当活塞向上死点移动时，通过连通通道将第二燃料的一部分推入预燃室中，活塞将预燃燃烧室中的第二燃料和第一燃料的部分压缩以点燃第一燃料 并燃烧第二燃料。 这产生燃烧火焰。 预燃室适于允许燃烧火焰经由通信通道从预燃烧室传播到发动机气缸。