Title:
ROUGH SURFACE CASTING CYLINDER LINER
Document Type and Number:
Japanese Patent JP2017198216
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve contact characteristic of a casting cylinder liner for an internal combustion engine.SOLUTION: A surface of a cylinder liner 1 has a rough outer surface. The surface is covered by projections or protrusions 2 of various shapes and sizes, they are made by injecting a coating material to a casting die and casting the cylinder liner within the casting die. The protrusions 2 are substantially conical or needle-like shape, their bases are larger than their extremity ends. The protrusions 2 have a total cross section of 50 to 90% of an entire area of a cylindrical cutting surface under a measurement at a place by 0.2 mm apart from the cylindrical cutting surface and a total cross section area of 20 to 45% of an entire area of the cylindrical cutting surface under a measurement at a place by 0.4 mm apart from the cylindrical cutting surface.SELECTED DRAWING: Figure 1
Inventors:
THOMAS J SMITH
STEFFEN RUDOLPH
JESUS ANTONIO MAGALLANES CASTANEDA
STEFFEN RUDOLPH
JESUS ANTONIO MAGALLANES CASTANEDA
Application Number:
JP2017088734A
Publication Date:
November 02, 2017
Filing Date:
April 27, 2017
Export Citation:
Assignee:
MAHLE INT GMBH
International Classes:
F02F1/00; F16J10/00
Domestic Patent References:
| JP2007015005A | 2007-01-25 | |||
| JP3183527U | 2013-05-23 | |||
| JP2009264347A | 2009-11-12 | |||
| JP2012067717A | 2012-04-05 |
Attorney, Agent or Firm:
Maeda patent office
Previous Patent: A scroll compressor which has modification preventive structure
Next Patent: Air filter assembly
Next Patent: Air filter assembly