CROSSHEAD ENGINE - IHI CORP

Title:

CROSSHEAD ENGINE

Document Type and Number:

WIPO Patent Application WO/2015/108178

Kind Code:

A1

Abstract:

A crosshead engine is provided with: a cylinder; a piston sliding within the cylinder; a piston rod (112a) having one end affixed to the piston; a crosshead (crosshead pin (114a)) connected to the other end side of the piston rod and reciprocating together with the piston; a connecting rod having one end supported by the crosshead; a crankshaft connected to the connecting rod and rotating in coordination with the reciprocation of both the piston and the crosshead; and a variable mechanism for changing the positions of the top dead center and bottom dead center of the piston by changing the relative positions between the piston rod and the crosshead in the stroke direction of the piston. The variable mechanism is provided with: a hydraulic pressure chamber (168a) which is provided in the crosshead and into which an end of the piston rod is inserted; and a hydraulic pressure adjustment mechanism which supplies hydraulic oil to the hydraulic pressure chamber or discharges the hydraulic oil therefrom and which adjusts a position up to which the end of the piston rod is inserted into the hydraulic pressure chamber in the stroke direction.

Inventors:

YAMADA TAKESHI (JP)
UMEMOTO YOSHIYUKI (JP)
KOBAYASHI MACHIKO (JP)

Application Number:

PCT/JP2015/051207

Publication Date:

July 23, 2015

Filing Date:

January 19, 2015

Export Citation:

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Assignee:

IHI CORP (JP)

International Classes:

F02B75/04; F02B75/32

Domestic Patent References:

WO2013092364A1

2013-06-27

Foreign References:

JP2007247415A	2007-09-27
JP2009036128A	2009-02-19
US20090205615A1	2009-08-20
US4140091A	1979-02-20
JP2014020375A	2014-02-03
JPS6352221B2	1988-10-18
DE19835146A1	1999-06-10
JP2005054619A	2005-03-03
JP2014008102A	2014-01-20
JP2007247415A	2007-09-27

Other References: