摘要:
Provided is a solenoid valve stable in response performance, whose quickness and damping performance are appropriate. In the solenoid valve, a respiration port for flowing fluid into and out from a space located on one side of a plunger that faces the spool is formed in an end portion of a valve sleeve. Further, a respiration groove, which causes the space on the one side of the plunger and the respiration port to communicate with each other when an end portion of the spool and an end portion of a center post are in contact with each other, is formed on the spool. This configuration makes it possible to discharge, with an appropriate level of flow-channel resistance, fluid placed in the space located on the one side of the plunger.
摘要:
The object of the present invention is to provide a solenoid valve which can be assembled easily and has good production efficiency.A solenoid valve comprising; a valve sleeve (20) of cylindrical shape having an inner passage (22) continuing in an axial direction, a spool (30) arranged in a movable manner in said axial direction at said inner passage of said valve sleeve, a center post (40) of cylindrical shape having a through hole (42) connected with said inner passage of said valve sleeve and constituted from a magnetic material, a plunger (50) constituted from a magnetic material and arranged in a movable manner in said axial direction against said valve sleeve and said center post by placing said center post between said spool in said axial direction, a shaft (60) constituted from a non-magnetic material comprising an axis part (62) in which one end is brought into contact with said spool and other end attached to an end face of said plunger and moves in said axial direction inside said through hole of said center post, and a collar part (68) formed as one body with said axis part and sandwiched between said plunger and said center post when said plunger closely approaches said center post by protruding out in a radial direction from said axial part, and a case part comprising a coil (75) generating a magnetic force transferring to said center post and housing said plunger and said shaft in inside.
摘要:
The object of the present invention is to provide a solenoid valve which can be assembled easily and has good production efficiency.A solenoid valve comprising; a valve sleeve (20) of cylindrical shape having an inner passage (22) continuing in an axial direction, a spool (30) arranged in a movable manner in said axial direction at said inner passage of said valve sleeve, a center post (40) of cylindrical shape having a through hole (42) connected with said inner passage of said valve sleeve and constituted from a magnetic material, a plunger (50) constituted from a magnetic material and arranged in a movable manner in said axial direction against said valve sleeve and said center post by placing said center post between said spool in said axial direction, a shaft (60) constituted from a non-magnetic material comprising an axis part (62) in which one end is brought into contact with said spool and other end attached to an end face of said plunger and moves in said axial direction inside said through hole of said center post, and a collar part (68) formed as one body with said axis part and sandwiched between said plunger and said center post when said plunger closely approaches said center post by protruding out in a radial direction from said axial part, and a case part comprising a coil (75) generating a magnetic force transferring to said center post and housing said plunger and said shaft in inside.
摘要:
A printed matter, wherein a line latent image and a digital watermark are printed in a predetermined region in an overlapping manner, the line latent image becoming visible when a line filter provided with a line pattern formed on a transparent film is superimposed thereon.
摘要:
A printed matter, wherein a line latent image and a digital watermark are printed in a predetermined region in an overlapping manner, the line latent image becoming visible when a line filter provided with a line pattern formed on a transparent film is superimposed thereon.
摘要:
Provided is a solenoid valve stable in response performance, whose quickness and damping performance are appropriate. In the solenoid valve, a respiration port (46) to be used for flowing fluid into and out from a space located on one side of a plunger (24) that faces the spool (60) is formed in an end portion of a valve sleeve (41) that faces a solenoid case (21). Further, in the solenoid valve, a respiration groove (66) is formed on the spool (60), wherein the respiration groove (66) causes the space located on the one side of the plunger (24) facing the spool (60), and the respiration port (46) to communicate with each other when an end portion of the spool (60) that faces the plunger (24), and an end portion of a center post (27) that faces the spool (60) are in contact with each other with the spool (60) having been put in the nearest possible position to the plunger (24). This configuration makes it possible to discharge, with an appropriate level of flow-channel resistance, fluid placed in the space located on the side of the plunger (24) facing the spool (60). Therefore, slowdown of the response performance does not occur, and appropriate damping performance is ensured.