JPH0337063U - - Google Patents
Info
- Publication number
- JPH0337063U JPH0337063U JP9821989U JP9821989U JPH0337063U JP H0337063 U JPH0337063 U JP H0337063U JP 9821989 U JP9821989 U JP 9821989U JP 9821989 U JP9821989 U JP 9821989U JP H0337063 U JPH0337063 U JP H0337063U
- Authority
- JP
- Japan
- Prior art keywords
- stepped piston
- valve
- brake fluid
- diameter portion
- fluid pressure
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims description 10
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Hydraulic Control Valves For Brake Systems (AREA)
Description
第１図および第２図は本考案の一実施例を示す
ものであつて、第１図はブレーキ液圧制御弁の全
体断面図、第２図はバルブが閉状態にあるリテー
ナの断面図、第３図は従来のブレーキ液圧制御弁
の一部を示す断面図、第４図はブレーキ液圧制御
弁における入力圧と出力圧との関係を示す特性線
図である。
１……ブレーキ液圧制御弁、２，１４……ブレ
ーキ液通路、３……ハウジング、４……ケーシン
グ、７……段付プランジヤ、７ａ……大径部、７
ｂ……小径部、８，９……シール部材、１０……
戻しばね、１１……室、１２……キヤツプ状部材
、１２ａ……孔、１３……連通路、１５……バル
ブ、１５ａ……段部、１５ｂ……軸部、１６……
圧縮ばね、１７……バルブシート、１８……リテ
ーナ、１８ａ……筒状部、１８ｂ……底面部、１
９……嵌合孔。
1 and 2 show an embodiment of the present invention, in which FIG. 1 is an overall sectional view of a brake fluid pressure control valve, FIG. 2 is a sectional view of a retainer with the valve in a closed state, FIG. 3 is a sectional view showing a part of a conventional brake fluid pressure control valve, and FIG. 4 is a characteristic diagram showing the relationship between input pressure and output pressure in the brake fluid pressure control valve. DESCRIPTION OF SYMBOLS 1... Brake fluid pressure control valve, 2, 14... Brake fluid passage, 3... Housing, 4... Casing, 7... Stepped plunger, 7a... Large diameter portion, 7
b... Small diameter portion, 8, 9... Seal member, 10...
Return spring, 11... Chamber, 12... Cap-shaped member, 12a... Hole, 13... Communication path, 15... Valve, 15a... Step portion, 15b... Shaft portion, 16...
Compression spring, 17... Valve seat, 18... Retainer, 18a... Cylindrical part, 18b... Bottom part, 1
9... Fitting hole.
Claims (1)
ング内に大径部と小径部とを有する段付ピストン
を摺動自在に嵌合し、この段付ピストンを一方向
に付勢して通常は非作動位置に保持させ、また上
記段付ピストンの一端小径部と他端大径部とにそ
れぞれブレーキ液圧を作用させてその受圧面積差
で段付ピストンを上記非作動位置から上記付勢方
向と逆方向に変位させる一方、上記段付ピストン
の小径部側のブレーキ液通路と大径部側のブレー
キ液通路とを連通する連通路を上記段付ピストン
内に形成すると共に、この連通路にバルブを配設
し、上記段付ピストンの非作動時に上記バルブを
開放状態に維持させ、かつ上記段付ピストンの作
動時に上記バルブを開閉させるようにしたブレー
キ液圧制御弁において、上記段付ピストンの弁座
と反対側に位置するバルブの軸部にキヤツプ状の
リテーナを径方向へ移動可能に嵌合配置し、上記
バルブが開閉するときに、上記リテーナの片側外
壁面を上記段付ピストンの内壁面に接触させたこ
とを特徴とするブレーキ液圧制御弁。 A stepped piston having a large diameter portion and a small diameter portion is slidably fitted into a casing attached to the master cylinder housing, and this stepped piston is normally held in a non-operating position by biasing it in one direction. In addition, brake fluid pressure is applied to the small diameter portion at one end of the stepped piston and the large diameter portion at the other end, and the stepped piston is displaced from the non-operating position in a direction opposite to the urging direction by the difference in pressure receiving area. Meanwhile, a communication passage is formed in the stepped piston to communicate the brake fluid passage on the small diameter side of the stepped piston with the brake fluid passage on the large diameter side, and a valve is disposed in the communication passage. , in a brake fluid pressure control valve that maintains the valve in an open state when the stepped piston is not activated and opens and closes the valve when the stepped piston is activated, the valve seat being opposite to the valve seat of the stepped piston; A cap-shaped retainer is fitted and arranged to be movable in the radial direction on the shaft of the valve located on the side, and when the valve is opened and closed, one outer wall surface of the retainer is brought into contact with the inner wall surface of the stepped piston. A brake fluid pressure control valve characterized by:
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989098219U JPH068955Y2 (en) | 1989-08-23 | 1989-08-23 | Brake fluid pressure control valve |
| US07/563,245 US5066072A (en) | 1989-08-23 | 1990-08-06 | Hydraulic brake pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989098219U JPH068955Y2 (en) | 1989-08-23 | 1989-08-23 | Brake fluid pressure control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0337063U true JPH0337063U (en) | 1991-04-10 |
| JPH068955Y2 JPH068955Y2 (en) | 1994-03-09 |
Family
ID=31647328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989098219U Expired - Lifetime JPH068955Y2 (en) | 1989-08-23 | 1989-08-23 | Brake fluid pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH068955Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5726030A (en) * | 1980-07-21 | 1982-02-12 | Akebono Brake Ind Co Ltd | Proportioning valve |
-
1989
- 1989-08-23 JP JP1989098219U patent/JPH068955Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5726030A (en) * | 1980-07-21 | 1982-02-12 | Akebono Brake Ind Co Ltd | Proportioning valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH068955Y2 (en) | 1994-03-09 |
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