Title:
LINEAR SOLENOID VALVE
Document Type and Number:
Japanese Patent JPS60136685
Kind Code:
A
Abstract:
PURPOSE:To stabilize the upward flow of fluid from the annular action surface of a damper installed at the inner-edge part of a sleeve by smoothing the flow of fluid which passes through a cut part by forming the lower edge surface of the damper into tapered form. CONSTITUTION:The slits 21 and 21 for bypass each of which is cut in the radial direction are formed in a prescribed length in the direction of axis line at the inner-edge part of a spool 20, and these slits 21 cut-off the communication to a port 12 at the lower-edge position of the spool 20, and a bypass passage is formed between the ports 12 and 13 through the upward displacement of the spool 20. A damper 50 having a center hole 50a is driven at the center part of the spool 20, and an annular action surface 22 is formed. Said damper 50 is formed so that the length in the axial direction is shorter by a prescribed amount than that in the axial direction of the slit 21, and a taper surface 5b having a prescribed angle is formed onto the inner-edge outer periphery.
Inventors:
WATANABE KATSUAKI
HIRAMATSU TOSHITO
SUZUKI MIKIO
TOYAMA YOSHIYUKI
HIRAMATSU TOSHITO
SUZUKI MIKIO
TOYAMA YOSHIYUKI
Application Number:
JP24296583A
Publication Date:
July 20, 1985
Filing Date:
December 22, 1983
Export Citation:
Assignee:
TOYODA MACHINE WORKS LTD
International Classes:
F16K31/06; (IPC1-7): F16K31/06
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