Title:
SEAT SECTION GRINDING METHOD AND DEVICE THEREOF FOR VALVE ASSEMBLY
Document Type and Number:
Japanese Patent JPH04343659
Kind Code:
A
Abstract:
PURPOSE: To shorten the grinding time of a valve assembly and perform grinding with high oil-tightness.
CONSTITUTION: The side periphery of the valve body 2 of a valve assembly 1 assembled with a valve needle 3 coated with a lapping agent and the valve body 2 is centerless-held by a reference roller 16 and a drive roller 21 in the rated rotating state, the valve assembly 1 is rotated at a high speed, the valve needle 3 in the rotating state is held by a swayably suspended clip 36 to stop the rotation of the valve needle 3, and the valve body 2 and the seat portion of the valve needle 3 are ground together.
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Inventors:
HIRATA HIROAKI
Application Number:
JP14396391A
Publication Date:
November 30, 1992
Filing Date:
May 20, 1991
Export Citation:
Assignee:
JAPAN ELECTRONIC CONTROL SYST
International Classes:
B24B37/00; (IPC1-7): B24B37/00
Attorney, Agent or Firm:
Fuyuki Nagai