JPS58194954U - Vacuum booster - Google Patents
Vacuum boosterInfo
- Publication number
- JPS58194954U JPS58194954U JP9300882U JP9300882U JPS58194954U JP S58194954 U JPS58194954 U JP S58194954U JP 9300882 U JP9300882 U JP 9300882U JP 9300882 U JP9300882 U JP 9300882U JP S58194954 U JPS58194954 U JP S58194954U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- pressure chamber
- low
- operates
- switching valve
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の真空式倍力装置の系統図、第２図は本考
案の実施例を示す系統図、第３図はバルブプランジャ及
びポペットバルブの動作説明図、第４図は本考案の他の
実施例を示す系統図である。
１：パワーシリンダ、２：マスクシリンダ ３：、＞６
ワーピストン、５：第１電磁切換弁、６．−２２：真空
ポンプ、６ａ：吸込口、６ｂ＝吐出口、７：第２電磁切
換弁、９：蓄圧タンク、１０：開閉弁、１１：第１圧力
スイツチ、１２：第２圧力スイツチ、１４ニブレーキペ
ダル（作動ペダル）、２０：プッシュロッド、Ａ：低圧
室、Ｂ：高圧室、ｘ：インテークマニホールド。Fig. 1 is a system diagram of a conventional vacuum booster, Fig. 2 is a system diagram showing an embodiment of the present invention, Fig. 3 is an explanatory diagram of the operation of the valve plunger and poppet valve, and Fig. 4 is a system diagram of the present invention. It is a system diagram showing another example. 1: Power cylinder, 2: Mask cylinder 3:, >6
War piston, 5: first electromagnetic switching valve, 6. -22: Vacuum pump, 6a: Suction port, 6b = Discharge port, 7: Second electromagnetic switching valve, 9: Accumulator tank, 10: Open/close valve, 11: First pressure switch, 12: Second pressure switch, 14 Ni Brake pedal (operating pedal), 20: Push rod, A: Low pressure chamber, B: High pressure chamber, x: Intake manifold.
Claims (1)
とに画成し、作動ペダルの踏込みにより低圧室と高圧室
とを隔離すると共に該両室に圧力差を生じさせてパワー
ピストン及びブツシュロッドを前進させて、マスクシリ
ンダに圧油を発生させる真空式倍力装置において、パワ
ーシリンダの低圧室と、真空ポンプの吸込口の連通を低
圧室と大気とに切換える第１電磁切換弁と、真空ポンプ
と、真空ポンプの吐出口の連通をエンジンのイン゛ テ
ークマニホールド又は大気と蓄圧タンクとに切換える第
２電磁切換弁と、蓄圧タンクと、作動ペダルの所定量の
踏込み位置にて開閉して高圧室と蓄圧タンクとの連通、
遮断を行う開閉弁と、パワーシリンダの高圧室とを順次
直列に配管にて接続し、かつ低圧室の圧力が設定圧より
上昇しで作動する第１圧力スイツチと、蓄圧タンクの圧
力が設定圧力より降下して作動する第２圧力スイツチと
を第１圧力スイツチが第２圧力スイツチより優先作動す
るように設けて、少なくとも第１電磁切換弁及び第２電
磁切換弁を制御するようにしたことを特徴とする真空式
倍力装置。The inside of the power cylinder is divided into a low-pressure chamber and a high-pressure chamber by the power piston, and when the operating pedal is depressed, the low-pressure chamber and the high-pressure chamber are isolated and a pressure difference is created between the two chambers to advance the power piston and the bushing rod. In the vacuum booster that generates pressure oil in the mask cylinder, the first electromagnetic switching valve switches communication between the low pressure chamber of the power cylinder and the suction port of the vacuum pump between the low pressure chamber and the atmosphere, and the vacuum pump. , a second electromagnetic switching valve that switches the communication of the discharge port of the vacuum pump between the engine's intake manifold or the atmosphere and the pressure accumulation tank; Communication with pressure storage tank,
An on-off valve that shuts off and the high pressure chamber of the power cylinder are connected in series with piping, and a first pressure switch that operates when the pressure in the low pressure chamber rises above the set pressure, and a first pressure switch that operates when the pressure in the pressure storage tank rises above the set pressure. A second pressure switch that operates at a lower pressure is provided so that the first pressure switch operates with priority over the second pressure switch, and controls at least the first electromagnetic switching valve and the second electromagnetic switching valve. Features a vacuum booster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9300882U JPS58194954U (en) | 1982-06-23 | 1982-06-23 | Vacuum booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9300882U JPS58194954U (en) | 1982-06-23 | 1982-06-23 | Vacuum booster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58194954U true JPS58194954U (en) | 1983-12-24 |
| JPS6230832Y2 JPS6230832Y2 (en) | 1987-08-07 |
Family
ID=30100764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9300882U Granted JPS58194954U (en) | 1982-06-23 | 1982-06-23 | Vacuum booster |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58194954U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014162355A (en) * | 2013-02-25 | 2014-09-08 | Mitsubishi Nichiyu Forklift Co Ltd | Brake system and brake control method |
| JP2016125365A (en) * | 2014-12-26 | 2016-07-11 | ダイハツ工業株式会社 | Internal combustion engine |
-
1982
- 1982-06-23 JP JP9300882U patent/JPS58194954U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014162355A (en) * | 2013-02-25 | 2014-09-08 | Mitsubishi Nichiyu Forklift Co Ltd | Brake system and brake control method |
| JP2016125365A (en) * | 2014-12-26 | 2016-07-11 | ダイハツ工業株式会社 | Internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6230832Y2 (en) | 1987-08-07 |
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