DE1505569C3 - Brake boosters for automobiles - Google Patents
Brake boosters for automobilesInfo
- Publication number
- DE1505569C3 DE1505569C3 DE19661505569 DE1505569A DE1505569C3 DE 1505569 C3 DE1505569 C3 DE 1505569C3 DE 19661505569 DE19661505569 DE 19661505569 DE 1505569 A DE1505569 A DE 1505569A DE 1505569 C3 DE1505569 C3 DE 1505569C3
- Authority
- DE
- Germany
- Prior art keywords
- force
- extension
- braking
- control
- control member
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
- B60T13/57—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of control valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
- B60T13/573—Vacuum systems indirect, i.e. vacuum booster units characterised by reaction devices
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Description
sind sie in Rillen 23' geführt, die an der Kegelfläche Steuerglied 11 über die Kugein 23 im Arbeitssinnethey are guided in grooves 23 ', which on the conical surface control member 11 via the ball 23 in the working direction
17 des Kraftgliedes 3 angeordnet sind, über durch am a».f das Kraftübertragungsglied 19.17 of the force member 3 are arranged over through on a ».f the force transmission member 19.
Kopf 20 des KraftübertraguDgsglicdes 19 oder an der Bei der den Bewegungsvorgang einleitenden Be-Head 20 of the power transmission glicdes 19 or on the
Kegelstumpffläche 22 des Steuergliedes 11 liegen wegung des Steuergliedes 11 werden die Kugeln 23The truncated conical surface 22 of the control member 11 is the movement of the control member 11, the balls 23
können. . s parallel zur Kegelfläche 17 des am Deckel 2 anlie-can. . s parallel to the conical surface 17 of the
Der Weg des Steuergliedes 11, das vun einer sich genden Kraftgliedes 3 verschoben, wobei sie das an der Schulter 6 im Ansatz 4 und an einem Bund 25 Kraftübertragungsglied 19 verdrängen. Die darauf an der Betätigungsstange 10 abstützenden Feder 26 einsetzende Bewegung des Kraftglisdes 3 drückt die gegen das Ventilglied 14 gedruckt wird, ist durch Kugeln 23 nun wieder so weit nach innen, bis das einen Finger 27 begrenzt, der in eine Ringnut 28 am io Steuerglied 11 und das Kraftglied 3 eine Ausgleichs-Umfang des Steuergliedes 11 eingreift Eine sich am lage einnehmen, bei der die Hilfskraft und die Steuer-Boden des Zylindertopfes 1 abstützende Rückführ- kraft der Gegenkraft entsprechen, und bei der ferner feder 29 drückt das Kraftglied 3 gegen den Deckel 2. das Ventilglied 14 auf dem Ventilsitz 12 des Steuer-The path of the control member 11, the vun a lowing force member 3 moved, with the on the shoulder 6 in the approach 4 and on a collar 25 force transmission member 19 to be displaced. The one on it on the actuating rod 10 supporting spring 26 beginning movement of the Kraftglisdes 3 presses the is pressed against the valve member 14 is now so far inward again by balls 23 until the a finger 27 is limited, which in an annular groove 28 on the io control member 11 and the force member 3 has a compensation scope of the control member 11 engages a position in which the auxiliary and the control floor of the cylinder pot 1 supporting return force correspond to the counterforce, and furthermore spring 29 presses the force member 3 against the cover 2. the valve member 14 on the valve seat 12 of the control
Der Bremskraftverstärker wirkt wie folgt: In der gliedes 11 und der Schulter 7 dichtend anliegt. EineThe brake booster works as follows: In the member 11 and the shoulder 7 rests in a sealing manner. One
Ruhelage verbindet das Folgeventil, dessen Steuer- 15 weitere Drucksteigerung in der DruckwechselkammerThe rest position connects the sequence valve, its control 15 further pressure increase in the pressure change chamber
glied 11 mit seinem Ventilsitz 12 durch die Kraft der unterbleibt also.member 11 with its valve seat 12 by the force of that is omitted.
Feder 26 am in die gezeichnete rechte Endlage ver- Wird die Steuerkraft vermindert oder ganz wegschobenen
Ventilglied 14 anliegt, die durch den An- genommen, so daß die Ausgleichslage gestört ist,
schlußstutzen 16 mit einer Unterdruckquelle verbun- werden durch die Kraft des Kraftgliedes 3 und die
dene Gleichdruckkammer links des Kraftgliedes 3 ao Gegenkraft des Kraftübertragungsgliedes 19 die Kudurch
den Kanal 15, die Ventilkammer und den geln 23 auf der Kegelfläche 17 weiter nach innen geKanal
24 mit der Druckwechselkammer rechts des drückt, so daß das Steuerglied 11 auch mit Unter-Kraftgliedes
3. Infolge des Druckausgleichs zu bei- Stützung der Feder 26 das Ventilglied 14 von der
den Seiten des Kraftgliedes 3 vermag die Rückführ- Schulter 7 wieder abhebt. Die Luft höheren Drucks
feder 29 das Kraftglied 3 gegen den Deckel 2 zu 35 in der Druckwechselkammer wird darauf durch die
drücken. Die aus den Kugeln 23 und den an diesen nun wieder geschaffene Verbindung mit der Gleichanliegenden
Teilen bestehende Kräfteauswiegevor- druckkammer von der Unterdruckquelle abgesaugt,
richtung ist nur unwesentlich durch das Kraftüber- Das Kraftglied 3 kehrt in seine Ruhelage zurück,
tragungsglied 19 vom Hauptzylinder her belastet. Ergänzend wird bemerkt, daß das Verhältnis der The control force is reduced or completely pushed away valve member 14 is applied, which is assumed by the assumption that the compensating position is disturbed, the connection piece 16 is connected to a vacuum source by the force of the force member 3 and the constant pressure chamber to the left of the force member 3 ao counterforce of the force transmission member 19 pushes through the channel 15, the valve chamber and the gels 23 on the conical surface 17 further inward geKanal 24 with the pressure change chamber to the right of the presses, so that the control member 11 also with sub-force member 3. As a result of the pressure equalization to support the spring 26, the valve member 14 from which the sides of the force member 3 can lift the return shoulder 7 again. The air higher pressure spring 29, the force member 3 against the cover 2 to 35 in the pressure swing chamber is then pressed by the. The force balance pre-pressure chamber consisting of the balls 23 and the connection that has now been created again with the parts resting on them is sucked out of the vacuum source.
support member 19 loaded from the master cylinder. It is also noted that the ratio of
Beim Niedertreten des Bremshebels 9 verschiebt 30 Steuerkraft zur Hilfskraft für die Ausgleichslage der die Betätigungsstange 10 das Steuerglied 11 nach Kräfteauswiegevorrichtung verschieden gestaltet werlinks. Dabei legt sich zunächst das Ventilglied 14 an den kann, wenn die Kegelflächen am Kraftglied und der Schulter 7 im Ansatz 4 an. Die Verbindung der am Steuerglied mit verschiedenen Steigungswinkeln beiden Kammern beiderseits des Kraftgliedes 3 wird versehen werden. Dasselbe kann erzielt werden, wenn dadurch unterbrochen. Beim weiteren Niedertreten 35 auch die dritte Anlagefläche kegelig ausgebildet wird, des Bremshebels 9 hebt sich der Ventilsitz 12 des Ein progressives Verhältnis von Hilfskraft zur Steuergliedes 11 vom Ventilglied 14 ab, so daß Luft Steuerkraft läßt sich erzielen, wenn wenigstens eine unter atmosphärischem Druck vom Hohlraum 5 des der mit den Kugeln zusammenwirkenden Flächen geAnsatzes 4 her durch das Ventilglied 14 und den wölbt gestaltet ist. An Stelle der Kugeln können zwi-Kanal 24 in die Druckwechselkammer rechts des 40 sehen den zueinander geneigten Flächen der Kräfte-Kraftgliedes 3 strömen kann. Durch den so erzeugten auswiegevorrichtung des Bremskraftverstärkers auch Druckunterschied drückt das Kraftglied 3 wie das Doppelkeile verwendet werden.When stepping down the brake lever 9 shifts 30 control force to the auxiliary force for the compensation position the actuating rod 10, the control member 11 according to the force weighing device are designed differently on the left. In this case, the valve member 14 is initially placed on the can when the conical surfaces on the force member and the shoulder 7 in approach 4. The connection of the control link with different angles of inclination both chambers on both sides of the force member 3 will be provided. The same thing can be achieved if thereby interrupted. When stepping down further 35, the third contact surface is also tapered, of the brake lever 9 lifts the valve seat 12 of the A progressive ratio of auxiliary power to Control member 11 from the valve member 14, so that air control force can be achieved if at least one under atmospheric pressure from the cavity 5 of the surface that interacts with the spheres 4 is designed by the valve member 14 and the arches. Instead of the balls, two-channel 24 in the pressure change chamber to the right of 40 see the mutually inclined surfaces of the force-force element 3 can stream. Also by the weighing device of the brake booster produced in this way Pressure difference pushes the force member 3 like the double wedges are used.
Hierzu 1 Blatt Zeichnungen 1 sheet of drawings
Claims (3)
düse drei Glieder schräg zueinander geneigte 15 Diese Aufgabe wird gemäß der Erfindung dadurch Flächen aufweisen, welche einen durch gegensei- gelöst, daß in dem veränderlichen Raum mehrere tiges Verschieben der Flächen veränderlichen starre Kugeln angeordnet sind.
Raum begrenzen, in dem wenigstens ein an den Ein Ausführungsbeispiel der Erfindung ist in der drei Flächen anliegendes Zwischenglied ver- Zeichnung dargestellt.On the other hand, the present invention acts on a force transmission member, which is also based on the task of creating a brake booster to a central breakthrough of the force member, with which a control member, which is controlled even at high temperatures, is conically tapered and the differentiated, always constant, fine gradable breakthrough is conically expanded, and in which braking is possible, and a simple initial setting of the tragungsgüed protruding with a flat face due to the expansion from the opposite side and the braking force booster should be possible
nozzle three members inclined obliquely to one another. According to the invention, this object is achieved by surfaces which are achieved by mutually opposing the fact that variable rigid balls are arranged in the variable space several times when the surfaces are shifted.
Limit the space in which at least one intermediate member, which is in contact with the three surfaces, is shown in the drawing.
Weiterung von der Gegenseite her das Kraftübertra- 4S An den dein Hohlraum 5 im Ansatz 4 gegenübergungsglied mit flacher Stirnseite hineinragt und diese Hegenden Teil des Durchbruchs 8 schließt sich über drei Glieder schräg zueinander geneigte Flächen auf- eine Kegelfläihe 17 eine zylindrische Erweiterung 18 weisen, welche einen durch gegenseitiges Verschieben jm Kraftglied 3 an. In diese Erweiterung 18 ragt ein der Flächen veränderlichen Raum begrenzen, in dem Kraftübertragungsglied 19 mit einem flachen, verbreiwenigstens ein an den drei Flächen anliegendes Zwi- 5« terten Kopf 2i9. Das die Kammer links des Kraftglieschenglied verschiebbar angeordnet ist. des 3 durchdringende Kraftübertragungsglied 19 istThe invention relates to a valve member 14 ? of the force member 3 member controlling sequence valve, the control forming a sequence valve. Starting from the annular space between the member and the force member via a force balance 40 the valve seat / 12 and the shoulder 7, the device acts on a force transmission member, a channel 24 into the chamber to the right of the force member 3 furthermore in a central opening of the force and from the shoulder 7 starting from another channel member guided control member tapered and 15 in the chamber to the left of the force member 3. in which the opening is conically widened, and in the Er connection stub 16 for a suction line opens.
Extension from the opposite side the power transmission 4S to the cavity 5 protrudes in the approach 4 opposite member with a flat face and this Hegenden part of the opening 8 closes over three members obliquely inclined surfaces on a conical surface 17 have a cylindrical widening 18, which one by mutual displacement j m force member 3 on. In this widening 18 protrudes a space delimiting the surfaces that can be changed, in the force transmission member 19 with a flat, at least one intermediate head 219 resting on the three surfaces. That the chamber to the left of the Kraftglieschen member is slidably arranged. des 3 penetrating force transmission member 19 is
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB0086475 | 1966-04-01 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1505569A1 DE1505569A1 (en) | 1970-07-23 |
DE1505569B2 DE1505569B2 (en) | 1974-10-24 |
DE1505569C3 true DE1505569C3 (en) | 1975-06-05 |
Family
ID=6983379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19661505569 Expired DE1505569C3 (en) | 1966-04-01 | 1966-04-01 | Brake boosters for automobiles |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1505569C3 (en) |
FR (1) | FR1515403A (en) |
GB (1) | GB1177686A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3709172A1 (en) * | 1987-03-20 | 1988-09-29 | Teves Gmbh Alfred | VACUUM BRAKE POWER AMPLIFIER FOR MOTOR VEHICLES AND METHOD FOR THE PRODUCTION THEREOF |
JP2894423B2 (en) * | 1994-01-28 | 1999-05-24 | 自動車機器株式会社 | Prevention device for removal of seal member of booster |
FR2774641B1 (en) | 1998-02-12 | 2000-04-21 | Bosch Syst Freinage | PNEUMATIC SERVOMOTOR WITH DYNAMICALLY VARIABLE MECHANICAL REACTION |
-
1966
- 1966-04-01 DE DE19661505569 patent/DE1505569C3/en not_active Expired
-
1967
- 1967-03-15 FR FR98923A patent/FR1515403A/en not_active Expired
- 1967-03-31 GB GB1470367A patent/GB1177686A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1505569A1 (en) | 1970-07-23 |
FR1515403A (en) | 1968-03-01 |
GB1177686A (en) | 1970-01-14 |
DE1505569B2 (en) | 1974-10-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
SH | Request for examination between 03.10.1968 and 22.04.1971 | ||
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
EHJ | Ceased/non-payment of the annual fee |