JPS5525621A - Brake master cylinder - Google Patents
Brake master cylinderInfo
- Publication number
- JPS5525621A JPS5525621A JP9718878A JP9718878A JPS5525621A JP S5525621 A JPS5525621 A JP S5525621A JP 9718878 A JP9718878 A JP 9718878A JP 9718878 A JP9718878 A JP 9718878A JP S5525621 A JPS5525621 A JP S5525621A
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pressure
- liquid chambers
- lost
- clearances
- liquid
- 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
Landscapes
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
PURPOSE: To prevent the excess of stepping force, by decreasing lost strokes by sending a large quantity of functioning liquid by means of a piston with a large diameter until braking starts and by generating the hydraulic pressure of braking by means of a piston with a small diameter after clearances are lost.
CONSTITUTION: During the time when there are clearances between a brake and a lining, hydraulic pressure is low, an interrupting valve 17 is not pushed to a valve seat 20 against the force of a spring 19, and a large quantity of brake function liquid are supplied to wheel cylinders 9, 9' from the first liquid chambers 7, 7' and the second liquid chambers 13, 13' in the sectional areas A1 of pistons 2, 2'. When further working a pedal 5, the clearances are lost, hydraulic pressure thereafter rises and braking starts. Valves 17, 17' right move to interrupt communication passages 16, 16'. When further working the pedal 5, the hydraulic pressure of the first liquid chambers 7, 7' further rises while the hydraulic pressure of the second liquid chambers 13, 13' also becomes higher. Relief valves 23, 23' are opened, pressure escapes to reservoirs 21, 21', the hydraulic pressure of the second liquid chambers 13, 13' lowers, the pistons 2, 2' pressurize in the portions of sectional areas A1-A2 after lost strokes, and only little stepping force is sufficient.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9718878A JPS5525621A (en) | 1978-08-11 | 1978-08-11 | Brake master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9718878A JPS5525621A (en) | 1978-08-11 | 1978-08-11 | Brake master cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5525621A true JPS5525621A (en) | 1980-02-23 |
Family
ID=14185593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9718878A Pending JPS5525621A (en) | 1978-08-11 | 1978-08-11 | Brake master cylinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5525621A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6024420A (en) * | 1995-12-26 | 2000-02-15 | Denso Corporation | Brake control apparatus for a vehicle |
| US6142581A (en) * | 1995-12-26 | 2000-11-07 | Denso Corporation | Hydraulic circuit having a rotary type pump and brake apparatus for a vehicle provided with the same |
| US6474751B1 (en) | 1995-12-26 | 2002-11-05 | Denso Corporation | Hydraulic circuit having a rotary type pump and brake apparatus for a vehicle provided with the same |
| CN103047411A (en) * | 2011-10-14 | 2013-04-17 | 现代摩比斯株式会社 | Plunger type master cylinder main piston |
-
1978
- 1978-08-11 JP JP9718878A patent/JPS5525621A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6024420A (en) * | 1995-12-26 | 2000-02-15 | Denso Corporation | Brake control apparatus for a vehicle |
| US6142581A (en) * | 1995-12-26 | 2000-11-07 | Denso Corporation | Hydraulic circuit having a rotary type pump and brake apparatus for a vehicle provided with the same |
| US6474751B1 (en) | 1995-12-26 | 2002-11-05 | Denso Corporation | Hydraulic circuit having a rotary type pump and brake apparatus for a vehicle provided with the same |
| CN103047411A (en) * | 2011-10-14 | 2013-04-17 | 现代摩比斯株式会社 | Plunger type master cylinder main piston |
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