公开(公告)号：US20220056836A1

公开(公告)日：2022-02-24

申请号：US17416424

申请日：2018-12-21

Applicant: INNIO Jenbacher GmbH & Co OG

Inventor： Matthias Grotz ,  Herbert Schaumberger ,  Nikolaus Spyra ,  Thomas Fankhauser ,  Isabelle Bec

IPC: F02B19/18 ,  F02F1/24 ,  F02B19/12

Abstract: A cylinder head for an internal combustion engine comprising a prechamber (3), wherein a prechamber gas valve (5) is fitted into a cavity in the cylinder head (2) and the prechamber gas valve (5) is connected to the prechamber (3) by way of a flow transfer passage (10), wherein the flow transfer passage (10) has a first portion (8) adjoining the prechamber gas valve (5) and a second portion (1) into which the first portion (8) opens, wherein the second portion (1) extends at least around a part of a periphery of the prechamber (3), wherein the second portion (1) has an uninterrupted peripheral surface apart from that opening (7) with which it passes into the prechamber (3).

公开(公告)号：US11680513B2

公开(公告)日：2023-06-20

申请号：US17416424

申请日：2018-12-21

Applicant: INNIO Jenbacher GmbH & Co OG

Inventor： Matthias Grotz ,  Herbert Schaumberger ,  Nikolaus Spyra ,  Thomas Fankhauser ,  Isabelle Bec

IPC: F02B19/18 ,  F02B19/12 ,  F02F1/24

CPC classification number: F02B19/18 ,  F02B19/12 ,  F02F1/242

Abstract: A cylinder head for an internal combustion engine comprising a prechamber (3), wherein a prechamber gas valve (5) is fitted into a cavity in the cylinder head (2) and the prechamber gas valve (5) is connected to the prechamber (3) by way of a flow transfer passage (10), wherein the flow transfer passage (10) has a first portion (8) adjoining the prechamber gas valve (5) and a second portion (1) into which the first portion (8) opens, wherein the second portion (1) extends at least around a part of a periphery of the prechamber (3), wherein the second portion (1) has an uninterrupted peripheral surface apart from that opening (7) with which it passes into the prechamber (3).

公开(公告)号：US11680511B2

公开(公告)日：2023-06-20

申请号：US17416517

申请日：2019-12-19

Applicant: INNIO Jenbacher GmbH & Co OG

Inventor： Nikolaus Spyra ,  Herbert Schaumberger ,  Matthias Grotz ,  Isabelle Bec ,  Thomas Fankhauser

IPC: F02B19/12 ,  F02B19/10 ,  F02B19/18 ,  F02M21/02

CPC classification number: F02B19/12 ,  F02B19/1014 ,  F02B19/1028 ,  F02B19/18 ,  F02M21/0218 ,  F02B2201/04

Abstract: A cylinder head for an internal combustion engine comprising a prechamber (3), wherein a prechamber gas valve (5) is fitted into a cavity of the cylinder head (2) and the prechamber gas valve (5) is connected to the prechamber (3) by way of a flow transfer passage (10), wherein the flow transfer passage (10) for a given cross-sectional area immediately downstream of the prechamber gas valve (5) is of such a length that in operation of the cylinder head (2) mounted in an internal combustion engine in a compression stroke of the combustion process propellant gas which flow out of the prechamber gas valve (5) forms a gas cushion at least in a first portion (8) of the flow transfer passage (10), that adjoins the prechamber gas valve (5).