JPH0449272U

JPH0449272U -

Info

Publication number: JPH0449272U
Application number: JP9199590U
Authority: JP
Priority date: 1990-08-31
Filing date: 1990-08-31
Publication date: 1992-04-27

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例に係るリリーフバ
ルブ内蔵コツクをマニホールドブロツクへ配設し
た状態を示す断面図、第２図はアクテイブサスペ
ンシヨンシステム等の油圧制御回路を示す回路図
、第３図は従来例としてのリリーフバルブとコツ
クのマニホールドブロツクへの配設状態を示す断
面図である。符号の説明、１……油圧供給源、２……アクチ
ユエータ、３……供給ライン、４……タンク、５
……戻りライン、６……連通路、１０……リリー
フバルブ内蔵コツク、１１……バルブボデイ、１
３……有頭スリーブ、１４……容室、Ｍ……マニ
ホールドブロツク。 Fig. 1 is a sectional view showing a state in which a relief valve built-in socket according to an embodiment of this invention is arranged in a manifold block, Fig. 2 is a circuit diagram showing a hydraulic control circuit for an active suspension system, etc., and Fig. 3 1 is a cross-sectional view showing how a relief valve and a socket are arranged in a manifold block as a conventional example. Explanation of symbols, 1... Hydraulic supply source, 2... Actuator, 3... Supply line, 4... Tank, 5
...Return line, 6...Communication path, 10...Built-in relief valve, 11...Valve body, 1
3... Headed sleeve, 14... Container chamber, M... Manifold block.

Claims

[Scope of utility model registration request]

In a hydraulic control circuit configured to supply hydraulic pressure from a hydraulic supply source to a hydraulic actuator via a supply line, and to release hydraulic pressure from the hydraulic actuator to a tank via a return line, the supply line and the return line A valve disposed in a communication passage that communicates with the supply line and which selects whether or not the hydraulic oil can flow in the communication passage has a built-in relief valve that sets the control hydraulic pressure in the supply line within the valve body that constitutes the valve body. Kotoku features a built-in relief valve.