JPH0340279U - - Google Patents
Info
- Publication number
- JPH0340279U JPH0340279U JP10151389U JP10151389U JPH0340279U JP H0340279 U JPH0340279 U JP H0340279U JP 10151389 U JP10151389 U JP 10151389U JP 10151389 U JP10151389 U JP 10151389U JP H0340279 U JPH0340279 U JP H0340279U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- secondary side
- output port
- housing
- valve disk
- 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
- 230000009977 dual effect Effects 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 1
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
Description
第１図は本考案に係るブレーキバルブの一実施
例を示す縦断面図、第２図は第１図と対応する従
来例を示す図、第３図は第２図のバランスピスト
ンと二次側バルブデイスクの係合個所を拡大して
示す図、第４図は本考案と従来例の各出力特性を
示す図である。
１……ブレーキバルブ、２，３……一次側及び
二次側供給口、４，５……一次側及び二次側出力
口、６……ハウジング、７，８……区画壁、８ａ
……通路、９，１０……一次側及び二次側圧力室
、１３，１４……一次側及び二次側バルブデイス
ク、１４ａ……段部、１７，１８……スプリング
、１９，２０……弁座、２１，２２……排気孔、
２３……バランスピストン、２３ｂ……押込部、
２７……圧力室、２８……リレーピストン、２９
……リターンスプリング、３２，３３……スプリ
ング、３７……ペダル、３９……プランジヤー。
Fig. 1 is a longitudinal sectional view showing an embodiment of the brake valve according to the present invention, Fig. 2 is a view showing a conventional example corresponding to Fig. 1, and Fig. 3 is a diagram showing the balance piston and secondary side of Fig. 2. FIG. 4 is a diagram showing an enlarged view of the engaging portion of the valve disc, and FIG. 4 is a diagram showing each output characteristic of the present invention and a conventional example. 1... Brake valve, 2, 3... Primary side and secondary side supply port, 4, 5... Primary side and secondary side output port, 6... Housing, 7, 8... Partition wall, 8a
...Passage, 9,10...Primary side and secondary side pressure chamber, 13,14...Primary side and secondary side valve disk, 14a...Step part, 17,18...Spring, 19,20... Valve seat, 21, 22...exhaust hole,
23...Balance piston, 23b...Pushing part,
27...Pressure chamber, 28...Relay piston, 29
... Return spring, 32, 33 ... Spring, 37 ... Pedal, 39 ... Plunger.
Claims (1)
トンを作動させ、該ピストンの押込部によつて、
二次側バルブデイスクをハウジングの弁座から離
反させて二次側の供給口と出力口との間を連通す
るようにしたデユアルブレーキバルブにおいて、
上記バランスピストンの押込部と上記ハウジング
の弁座とによつて画成される圧力作用面積に等し
い圧力作用面積の段部を上記バルブデイスクの外
周面に形成するとともに、該段部に二次側出力口
の発生圧力を作用させて上記バルブデイスクを閉
成方向に付勢するように構成したことを特徴とす
るデユアルブレーキバルブ。 The balance piston is actuated by the pressure generated at the primary output port, and the pushing part of the piston causes
In a dual brake valve in which the secondary side valve disk is separated from the valve seat of the housing to communicate between the secondary side supply port and the output port,
A stepped portion having a pressure acting area equal to the pressure acting area defined by the pushing portion of the balance piston and the valve seat of the housing is formed on the outer circumferential surface of the valve disk, and a secondary side is formed on the outer peripheral surface of the valve disk. A dual brake valve characterized in that the valve disc is biased in the closing direction by applying the pressure generated at the output port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989101513U JPH085884Y2 (en) | 1989-08-30 | 1989-08-30 | Dual brake valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989101513U JPH085884Y2 (en) | 1989-08-30 | 1989-08-30 | Dual brake valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0340279U true JPH0340279U (en) | 1991-04-18 |
| JPH085884Y2 JPH085884Y2 (en) | 1996-02-21 |
Family
ID=31650461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989101513U Expired - Lifetime JPH085884Y2 (en) | 1989-08-30 | 1989-08-30 | Dual brake valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH085884Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5211214U (en) * | 1975-07-14 | 1977-01-26 | ||
| GB2051272A (en) * | 1979-04-06 | 1981-01-14 | Wabco Fahrzeugbremsen Gmbh | Vehicle brake valve |
-
1989
- 1989-08-30 JP JP1989101513U patent/JPH085884Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5211214U (en) * | 1975-07-14 | 1977-01-26 | ||
| GB2051272A (en) * | 1979-04-06 | 1981-01-14 | Wabco Fahrzeugbremsen Gmbh | Vehicle brake valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH085884Y2 (en) | 1996-02-21 |