JPH0371963U - - Google Patents
Info
- Publication number
- JPH0371963U JPH0371963U JP12845089U JP12845089U JPH0371963U JP H0371963 U JPH0371963 U JP H0371963U JP 12845089 U JP12845089 U JP 12845089U JP 12845089 U JP12845089 U JP 12845089U JP H0371963 U JPH0371963 U JP H0371963U
- Authority
- JP
- Japan
- Prior art keywords
- pressure chamber
- power piston
- partition wall
- variable
- constant 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.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims 4
- 238000005192 partition Methods 0.000 claims 3
- 230000002123 temporal effect Effects 0.000 description 1
Landscapes
- Braking Systems And Boosters (AREA)
Description
第１図は本考案に従つた負圧式倍力装置の一実
施例を示す断面図、第２図は第１図に示した負圧
式倍力装置によつて得られる入出力特性の時間的
変化を示したグラフである。
１０……ハウジング、２０……パワーピストン
、２１……ハブ部材、３０……バルブ機構、３１
……バルブプランジヤ、３１Ａ……前方プランジ
ヤ、３１Ｂ……後方プランジヤ、４０……プツシ
ユロツド（入力ロツド）、７０……オペレーシヨ
ンロツド（出力ロツド）、９０……隔壁、９１…
…ダイアフラム、９２……環状隙間（絞り通路）
、Ｒ１……定圧室、Ｒ２……変圧室、Ｒ４……圧
力室。
Fig. 1 is a sectional view showing an embodiment of the negative pressure booster according to the present invention, and Fig. 2 is a temporal change in input/output characteristics obtained by the negative pressure booster shown in Fig. 1. This is a graph showing. DESCRIPTION OF SYMBOLS 10... Housing, 20... Power piston, 21... Hub member, 30... Valve mechanism, 31
...Valve plunger, 31A... Front plunger, 31B... Rear plunger, 40... Push rod (input rod), 70... Operation rod (output rod), 90... Bulkhead, 91...
...Diaphragm, 92...Annular gap (throttle passage)
, R1...constant pressure chamber, R2...variable pressure chamber, R4...pressure chamber.
Claims (1)
も１組の変圧室と定圧室に区画され、また前記パ
ワーピストン内に組み込まれ入力ロツドに連動す
るバルブ機構の作動により前記変圧室と定圧室間
の差圧が制御されて、前記入力ロツドに加わる操
作力が前記パワーピストンにより助勢されて出力
ロツドに伝わるようにした負圧式倍力装置におい
て、外周部が前記パワーピストンに気密的に固定
されると共に内周部が前記バルブ機構のバルブプ
ランジヤ又は前記出力ロツドに気密的に固定され
る隔壁を設け、該隔壁の前記定圧室側には前記定
圧室の圧力が常時付与されるようにすると共に前
記変圧室側には圧力室が形成されるようにし、該
圧力室と前記変圧室を前記バルブプランジヤの外
周面と前記バルブプランジヤが摺動可能に嵌挿さ
れる前記パワーピストンの内周面との間の環状隙
間により形成される絞り通路を通して連通させた
ことを特徴とする負圧式倍力装置。 The inside of the housing is divided into at least one set of a variable pressure chamber and a constant pressure chamber by a power piston, and the differential pressure between the variable pressure chamber and the constant pressure chamber is controlled by the operation of a valve mechanism incorporated in the power piston and interlocked with an input rod. In the negative pressure booster, in which the operating force applied to the input rod is assisted by the power piston and transmitted to the output rod, the outer peripheral part is hermetically fixed to the power piston, and the inner peripheral part is fixed to the power piston. A partition wall is airtightly fixed to the valve plunger or the output rod of the valve mechanism, and the pressure of the constant pressure chamber is always applied to the constant pressure chamber side of the partition wall, and the pressure is applied to the variable pressure chamber side of the partition wall. A chamber is formed, and the pressure chamber and the variable pressure chamber are formed by an annular gap between an outer peripheral surface of the valve plunger and an inner peripheral surface of the power piston into which the valve plunger is slidably inserted. A negative pressure booster characterized by communicating through a throttle passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12845089U JPH0371963U (en) | 1989-10-31 | 1989-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12845089U JPH0371963U (en) | 1989-10-31 | 1989-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0371963U true JPH0371963U (en) | 1991-07-19 |
Family
ID=31676157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12845089U Pending JPH0371963U (en) | 1989-10-31 | 1989-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0371963U (en) |
-
1989
- 1989-10-31 JP JP12845089U patent/JPH0371963U/ja active Pending
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