PISTON USED FOR HIGH PRESSURE PISTON OF CYLINDER UNIT

Title:

PISTON USED FOR HIGH PRESSURE PISTON OF CYLINDER UNIT

Document Type and Number:

Japanese Patent JP2005036800

Kind Code:

A

Abstract:

To provide a high pressure piston with few abrasion in a cylinder unit used for a control valve or an injection valve for a combustion engine.

This high pressure piston includes a piston having a surface area provided with not only a groove (22) but also an abrasion resistance protection layer, and a cylinder bore (19) with the piston (20) arranged movably in its inside, in the cylinder unit (15) used for the control valve or the injection valve (10) for the combustion engine.

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Inventors:

YILDIRIM TURHAN
DAMANI MONIKA
SCHLAGER DIETMAR

Application Number:

JP2004176957A

Publication Date:

February 10, 2005

Filing Date:

June 15, 2004

Export Citation:

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Assignee:

WAERTSILAE NSD SCHWEIZ AG

International Classes:

F02B47/02; F02M25/022; F02M25/025; F02M43/04; F02M59/46; F02M61/16; F02M61/18; F02M63/02; F02M61/12; (IPC1-7): F02M43/04; F02B47/02; F02M25/022; F02M61/16; F02M61/18

Domestic Patent References:

JP2000130297A	2000-05-09
JPH10246166A	1998-09-14
JPH06299933A	1994-10-25
JP2004521264A	2004-07-15
JP2003042039A	2003-02-13
JP2002161817A	2002-06-07

Attorney, Agent or Firm:

Hideto Asamura
Hajime Asamura
Yutaka Yoshida
Yukio Iwamoto

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