JPS57138455A - Anti-skid liquid pressure control solenoid valve - Google Patents

Anti-skid liquid pressure control solenoid valve

Info

Publication number
JPS57138455A
JPS57138455A JP2403581A JP2403581A JPS57138455A JP S57138455 A JPS57138455 A JP S57138455A JP 2403581 A JP2403581 A JP 2403581A JP 2403581 A JP2403581 A JP 2403581A JP S57138455 A JPS57138455 A JP S57138455A
Authority
JP
Japan
Prior art keywords
valve element
rod
valve
liquid pressure
solenoid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2403581A
Other languages
Japanese (ja)
Inventor
Toshifumi Maehara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akebono Brake Industry Co Ltd
Original Assignee
Akebono Brake Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Akebono Brake Industry Co Ltd filed Critical Akebono Brake Industry Co Ltd
Priority to JP2403581A priority Critical patent/JPS57138455A/en
Publication of JPS57138455A publication Critical patent/JPS57138455A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/363—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in hydraulic systems
    • B60T8/3635—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in hydraulic systems switching between more than two connections, e.g. 3/2-valves

Abstract

PURPOSE:To reduce required electric power, by using two movable valve elements and a rod for moving them, to equalize the liquid pressure on the front of each valve element to that on its rear. CONSTITUTION:A first valve element 12 is provided in a liquid chamber (a) which communicates with an input port 2. A second valve element 11 is provided in a liquid chamber (c) which communicates with a flow return port 5. The end of the second valve element 11 is located in a liquid chamber (b) which communicates with an output port 4. The second valve element 11 receives the force of a holding spring 15. A rod 10, which is operated by an armature 8, acts to both the valve elements 12, 11. When a solenoid 6 is energized, the rod 10 moves the second valve element 11 downward. At that time, the liquid forces acting to the front and rear of the valve element 11 are balanced to each other bacause the diameter of a valve seat 16 is equal to that of a seal 19. When the rod 10 pushes the first valve element 12 after the energizing of the solenoid 6, the liquid pressure on the front of the valve element and that of its rear are equalized to each other by an orifice 13. For that reason, the electric power required for the solenoid 6 is small.
JP2403581A 1981-02-20 1981-02-20 Anti-skid liquid pressure control solenoid valve Pending JPS57138455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2403581A JPS57138455A (en) 1981-02-20 1981-02-20 Anti-skid liquid pressure control solenoid valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2403581A JPS57138455A (en) 1981-02-20 1981-02-20 Anti-skid liquid pressure control solenoid valve

Publications (1)

Publication Number Publication Date
JPS57138455A true JPS57138455A (en) 1982-08-26

Family

ID=12127246

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2403581A Pending JPS57138455A (en) 1981-02-20 1981-02-20 Anti-skid liquid pressure control solenoid valve

Country Status (1)

Country Link
JP (1) JPS57138455A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5248191A (en) * 1990-03-27 1993-09-28 Nippondenso Co., Ltd. Pressure control valve for continuous pressure control to wheel cylinder
US5261731A (en) * 1990-07-03 1993-11-16 Nippondenso Co., Ltd. ABS proportional valve capable of remaining open while the wheel cylinder drain valve is open

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5248191A (en) * 1990-03-27 1993-09-28 Nippondenso Co., Ltd. Pressure control valve for continuous pressure control to wheel cylinder
US5261731A (en) * 1990-07-03 1993-11-16 Nippondenso Co., Ltd. ABS proportional valve capable of remaining open while the wheel cylinder drain valve is open

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