Title:
ROTARY VALVE AND MANUFACTURE THEREOF
Document Type and Number:
Japanese Patent JPH07329802
Kind Code:
A
Abstract:
PURPOSE: To obtain a pressure feeding characteristic which steeply rises in accordance with rotation of a spool valve part.
CONSTITUTION: This rotary valve is constituted of a sleeve valve part 1 and a spool valve part 2, and fluid pressure is adjusted by relative displacement of land parts 12, 22 in accordance with relative rotation of the spool valve part 2. An end part in the peripheral direction of the land part 22, which is in contact with a recessed strip groove 21, is formed into a control groove 23 inclined downward toward the recessed strip groove 21, and a stepped part 24 having a vertical wall surface 24a is formed in the intermediate part of slopes 23a, 23b of the control groove 23.
Inventors:
SUZUKI MIKIO
MORI KATSUHISA
SUGIYAMA HIDEAKI
MORI KATSUHISA
SUGIYAMA HIDEAKI
Application Number:
JP15038994A
Publication Date:
December 19, 1995
Filing Date:
June 08, 1994
Export Citation:
Assignee:
TOYODA MACHINE WORKS LTD
International Classes:
B23P17/00; B62D5/083; (IPC1-7): B62D5/083; B23P17/00
Attorney, Agent or Firm:
Ito Juma