JPH0371961U - - Google Patents
Info
- Publication number
- JPH0371961U JPH0371961U JP12844889U JP12844889U JPH0371961U JP H0371961 U JPH0371961 U JP H0371961U JP 12844889 U JP12844889 U JP 12844889U JP 12844889 U JP12844889 U JP 12844889U JP H0371961 U JPH0371961 U JP H0371961U
- 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
- 238000005192 partition Methods 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 claims 2
- 239000007769 metal material Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 description 1
- 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、第３図は本考案に係わる負
圧式倍力装置の他の実施例を示す要部断面図であ
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……絞り通路、９３……絞
り手段、９８……焼結金属、Ｒ１……定圧室、Ｒ
２……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. FIG. 3 is a sectional view of a main part showing another embodiment of the negative pressure booster according to the present invention. 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... Throttle passage, 93... Throttle means, 98... Sintered metal, R1... Constant pressure chamber, R
2...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焼結金属材からなる絞り手
段を有した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 negative pressure booster characterized in that a chamber is formed, and the pressure chamber and the variable pressure chamber are communicated through a throttle passage having a throttle means made of a sintered metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12844889U JPH0371961U (en) | 1989-10-31 | 1989-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12844889U JPH0371961U (en) | 1989-10-31 | 1989-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0371961U true JPH0371961U (en) | 1991-07-19 |
Family
ID=31676155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12844889U Pending JPH0371961U (en) | 1989-10-31 | 1989-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0371961U (en) |
-
1989
- 1989-10-31 JP JP12844889U patent/JPH0371961U/ja active Pending
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