Title:
FLUID PRESSURE CONTROL DEVICE
Document Type and Number:
Japanese Patent JP3158167
Kind Code:
B2
Abstract:
PURPOSE: To reduce the size of a device by providing a plunger and a spool with a first pressure receiving surface where the fluid pressure of an output port is applied toward the fixed core side and with a second pressure receiving surface where the fluid pressure is applied to the opposite side to the fixed core, which has a wider pressure receiving area than the first pressure receiving surface.
CONSTITUTION: When a plunger 13, that is, a spool 161 is sucked to the fixed core 12 side, liquid pressure is applied from an output port 291 to a braking device 5. The reaction force produced by fluid pressure of the output port 291 according to a pressure receiving area difference between a first pressure receiving surface 301 and a second pressure receiving surface 311 is applied to the spool 161. Accordingly, the electromagnetic force generated by a linear solenoid 61 is held down comparatively to the minimum. A second guide cylinder 10 is integrated with a valve housing 151 and the plunger 13 is integrated with the spool 161, so that the linear solenoid 61 and a control valve 71 can be made in a compact size. As a release port 231 is provided on the fixed core 12, the length of the valve housing 151 is reduced.
Inventors:
Koichi Hagiwara
Application Number:
JP10961292A
Publication Date:
April 23, 2001
Filing Date:
April 28, 1992
Export Citation:
Assignee:
Nissin Industry Co., Ltd.
International Classes:
B60T8/00; B60T8/40; B60T13/66; F16K31/06; (IPC1-7): B60T8/00; B60T13/66; F16K31/06
Domestic Patent References:
| JP3136963A | ||||
| JP6340270U |
Attorney, Agent or Firm:
Ken Ochiai (1 person outside)