Title:
シリンダ・ユニットの高圧ピストンに使用するピストン
Document Type and Number:
Japanese Patent JP4792209
Kind Code:
B2
Abstract:
A fuel injection system for large diesel engines has fuel injection jets. Each jet has a piston (20) whose mantle has a series of circular grooves (22) and a low-wear inert coating. The coating is hydrophobic and made of e.g. diamond-like-carbon (DLC) or a ceramic based on or including e.g. Al2O3, SiO2, TiN, Si3N4, SiC, TiC, WC or hard chrome. The piston moves up and down within a matching cylinder. The piston circular grooves have a groove width of 120-500 Microm and an interval of 100-2000 Microm. The groove interval is greater on the high-pressure side of the piston than on the low-pressure side.
More Like This:
| WO/2020/102010 | PRECHAMBER FLUID INJECTION |
| WO/2017/167504 | WATER INJECTION DEVICE OF AN INTERNAL COMBUSTION ENGINE OF A VEHICLE |
Inventors:
Turhan Yuildi Rim
Monica damani
Dietmar Schlager
Monica damani
Dietmar Schlager
Application Number:
JP2004176957A
Publication Date:
October 12, 2011
Filing Date:
June 15, 2004
Export Citation:
Assignee:
Waertsilae Schweiz AG
International Classes:
F02B47/02; F02M43/04; F02M25/022; F02M25/025; F02M59/46; F02M61/16; F02M61/18; F02M63/02; F02M61/12
Domestic Patent References:
| JP2004521264A | ||||
| JP2003042039A | ||||
| JP2002161817A | ||||
| JP2000130297A | ||||
| JP10246166A | ||||
| JP6299933A |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Yutaka Yoshida
Katsunori Shirae
Hajime Asamura
Yutaka Yoshida
Katsunori Shirae