Title:
ELECTRIC/HYDRAULIC OPERATING DEVICE FOR VEHICLE
Document Type and Number:
Japanese Patent JP3131894
Kind Code:
B2
Abstract:
PURPOSE: To prevent the hydraulic lock of a valve element by controlling the inside of the spool valve of a servo valve at a high pressure without using a specific solenoid valve while an engine is stopped.
CONSTITUTION: When the operation of an engine is stopped, a linear solenoid 21 is demagnetized, the valve element 23 of the spool valve 22 of a servo valve S is held at the rest position (a) communicating an input port 8 and a discharge port 9, and the inside of the spool valve 22 is controlled at a low pressure. When the engine is operated, a prescribed electric quantity is applied to the linear solenoid 21, and the valve element 22 of the spool valve 21 is moved to the normal valve closing position (b) closing the input port 8.
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Inventors:
Takeshi Hatada
Application Number:
JP15625794A
Publication Date:
February 05, 2001
Filing Date:
July 07, 1994
Export Citation:
Assignee:
Nissin Industry Co., Ltd.
International Classes:
B60T13/66; B60T13/12; B60T15/36; F16K31/06; (IPC1-7): B60T15/36; B60T13/12; F16K31/06
Domestic Patent References:
| JP7317941A | ||||
| JP7277177A | ||||
| JP7217764A | ||||
| JP7205801A | ||||
| JP7158609A | ||||
| JP76579U |
Attorney, Agent or Firm:
Ken Ochiai (1 person outside)