DE1505569B2 - Brake boosters for automobiles - Google Patents
Brake boosters for automobilesInfo
- Publication number
- DE1505569B2 DE1505569B2 DE19661505569 DE1505569A DE1505569B2 DE 1505569 B2 DE1505569 B2 DE 1505569B2 DE 19661505569 DE19661505569 DE 19661505569 DE 1505569 A DE1505569 A DE 1505569A DE 1505569 B2 DE1505569 B2 DE 1505569B2
- Authority
- DE
- Germany
- Prior art keywords
- force
- control
- link
- brake booster
- breakthrough
- 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
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
mehrere starre Kugeln (23) angeordnet sind *Üü verschiebbar^, kolbenartiges Kraft-several rigid balls (23) are arranged * Üü displaceable ^, piston-like force
2. Bremskraftverstärker nach Anspruchl 1, da- "i Zybndertop^ J^^^ 3 ^ einen ^^ hoh.2. Brake booster according to Claim 1, da- "i Zybndertop ^ J ^^^ 3 ^ a ^^ Hoh .
durch gekennzeichnet, daß die Kugeln 03Μ» f^^^SXch eine öffnung im Deckel 2 ragt. Rillen (23-) einer anliegenden Räche (17; 20 , »5 1«° ^ ^X6 Hohlraum 5 des Ansatzes 4 ist 22) geführt sind. „ach Sn durch zwei radiale Schultern 6 und 7 abgecharacterized in that the balls 03Μ »f ^^^ SXch an opening in the cover 2 protrudes. Grooves (23-) an adjacent area (17; 20, "5 1" ° ^ ^ X 6 cavity 5 of the approach 4 is 22) are guided. "Oh Sn by two radial shoulders 6 and 7
stuft -md mündet in einen Durchbruch 8 des Kraftgliedes * Durch den Hohlraum 5 des Ansatzes 4 ragt eine 30 an einem Bremshebel 9 angelenkte Betätigungsstange 10 die ein im Durchbruch 8 geführtes Steuerglied 11stages -md opens into a breakthrough 8 of the power link * An actuating rod linked to a brake lever 9 protrudes through the cavity 5 of the extension 4 10 a control member 11 guided in the opening 8
gelenkig trägt. Das der Betätigungsstange 10 zu-articulately carried. The actuating rod 10 to-
iewandte Ende des Steuergliedes 11 ist als Ventilsitz 12 ausgebildet und wirkt mit einem im Hohlraum 5 3S des Ansatzes 4 angeordneten durch eine Feder 13The opposite end of the control member 11 is designed as a valve seat 12 and acts with one in the cavity 5 3S of the extension 4 arranged by a spring 13
Die Erfindung bezieht sich auf einen Bremskraft- W^£^£^£ The invention relates to a braking force W ^ £ ^ £ ^ £
verstärker für Kraftfahrzeuge mit emem mittels eines sammen^ das mX öem 4 amplifier for motor vehicles with emem by means of a joint ^ the mX öem 4
Steuerglieds betätigbaren, die Bewegung eines Kraft- 111 und to *** er dem um ^^Actuatable control member, the movement of a force 111 and to *** he the around ^^
gUedes steuernden Folgeventil, wobei das Steuer- «n Folgeyenüi 011^ Ausgehend führtgUedes the controlling sequence valve, the control- «n F olgeyenüi 011 ^ Outgoing leads
glied und das Kraftgüed über eine Krateauswiege- 40 de*rVtajdjii:U "g^ fechts des ^u60683 member and the strength of a cradle 40 de * rVtajdjii : U "g ^ fechts des ^ u 60683
vorrichtung auf ein Kraftubertragungsghed waken, em Kanal M m αϊ ein ^.^device on a power transmission gear waken, em channel M m αϊ a ^. ^
ferner das in einem zentralen Durchbruch des Kraft- und von «?^"1JJ/ ^JKraftgliedes3, in die einfurthermore that in a central breakthrough of the force and "? ^" 1 JJ / ^ J force link, in which a
glieds geführte Steuerglied kegelig abgeschrägt und 15 m dκ>£«%«$£ eine SaugKfg mündet.The link-guided control link is tapered and 15 m dκ > £ «%« $ £ a SaugKfg opens.
-* S - * S
and sie in RÜlen23' geführt, die an der Kegelflache Steuerglied 11 über die Kugeln 23 im Arbeitssinneand they are guided in RÜlen23 ', the control member 11 on the conical surface via the balls 23 in the working direction
17 des Kraftgliedes 3 angeordnet sind, aber durch am auf das Kraftübertragungsglied 19.17 of the force member 3 are arranged, but by on the force transmission member 19.
Kopf 20 des Kraftübertragungsgliedes 19 oder an der Bei der den Bewegungsvorgang einleitenden Be-Head 20 of the power transmission link 19 or on the When the movement process initiating loading
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. 5 parallel zur Kegelflächel7 des am Deckel 2 anlie-can. 5 parallel to the conical surface 7 of the
Der Weg des Steuergliedes 11, d*s von einer sich genden Kraftgliedes 3 verschoben, wobei sie das ander Schulter 6 im Ansatz 4 ur>d an einem Bund 25 Kraftübertragungsglied 19 verdrängen. Die darauf an der Betätigungsstange 10 abstützenden Feder 26 einsetzende Bewegung des Kraftgliedes 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 to Steuerglied 11 und das Kraftglfed 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, d * s shifted from a lowing force member 3, where they the on the other shoulder 6 in the approach 4 ur> d 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 force member 3 pushes the is pressed against the valve member 14 is now so far inward again by balls 23 until the a finger 27 limited, which in an annular groove 28 on the control member 11 and the Kraftglfed 3 a compensation scope of the control member 11 engages. Take a position at the helper 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 there is a sealing
Ruhelage verbindet das FolgeventiL dessen Steuer- 15 weitere Drucksteigerung in der DruckwechselkammerThe rest position connects the follow-up valve to 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 lö 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 IS, 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-Kraftgiiedes
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 as 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 kehu in seine Ruhelage zurück,
tragungsglied 19 vom Hauptzylinder her belastet. Ergänzend wird bemerkt, daß das Verhältnis derIf the control force is reduced or completely pushed away valve member 14 is applied, which is assumed by the assumption that the compensation position is disturbed, the connection piece lo 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 the Ku through the channel IS, 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 Unter-Kraftgiiedes 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 higher pressure air spring 29 the force member 3 against the cover 2 to as in the pressure change chamber is on it through the press. The force balance pre-pressure chamber consisting of the balls 23 and the connection that has now been created again with the parts that are in contact with them is sucked out of the vacuum source, direction is only insignificant through the force transfer.
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 S des der mit den Kugeln zusammenwirkenden Rächen 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 you step 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 S of the avenge that interacts with the balls 4 is designed by the valve member 14 and the arches Instead of the balls, you can use 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 Zeichnungen1 sheet of drawings
Claims (1)
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 true DE1505569B2 (en) | 1974-10-24 |
DE1505569C3 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 |
---|---|
FR1515403A (en) | 1968-03-01 |
GB1177686A (en) | 1970-01-14 |
DE1505569A1 (en) | 1970-07-23 |
DE1505569C3 (en) | 1975-06-05 |
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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 |