WO1997044228A1 - Pneumatischer bremskraftverstärker - Google Patents
Pneumatischer bremskraftverstärker Download PDFInfo
- Publication number
- WO1997044228A1 WO1997044228A1 PCT/EP1997/002517 EP9702517W WO9744228A1 WO 1997044228 A1 WO1997044228 A1 WO 1997044228A1 EP 9702517 W EP9702517 W EP 9702517W WO 9744228 A1 WO9744228 A1 WO 9744228A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- receiving body
- brake booster
- amplifier housing
- power brake
- 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.)
- Ceased
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
- B60T13/567—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of the casing or by its strengthening or mounting arrangements
-
- 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
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/72—Electrical control in fluid-pressure brake systems in vacuum systems or vacuum booster units
Definitions
- the invention relates to a pneumatic brake booster for motor vehicles with an booster housing, the interior of which is divided by a movable wall into a first chamber (vacuum chamber) and a second chamber (working chamber), and with a control housing, in which a one on the movable wall acting pneumatic pressure difference controlling control valve is arranged, which has at least two sealing seats cooperating with an elastic valve body, one of which can be actuated by an actuating rod on the one hand and by an electromagnet independently of the actuating rod, one in the amplifier housing Cable duct is arranged airtight, through which electrical lines extend into the interior of the amplifier housing.
- Such a brake booster is known, for example, from the international patent application WO 95/32879.
- the cable bushing which can only be mounted from the outside, is designed as a measuring element of a displacement transducer, which is used to sense the movement of the movable wall of the brake booster.
- a sealing ring is provided, which is buttoned into an opening in the amplifier housing.
- a disadvantage of the known brake booster is the fact that ventilation of the vacuum chamber of the brake booster can occur when the sealing ring is knocked out of the booster housing or the known cable bushing is inclined, which leads to a failure of the booster force.
- an electrical connection must be made to ensure the current supply to the electromagnet and other components.
- simple assembly without additional electrical connections within the device and high reliability of the overall arrangement during operation should be ensured.
- the function of the electrical arrangement should be checked before the brake booster is assembled.
- the cable bushing is held in the amplifier housing by means of a bayonet connection and consists of a receptacle body which can be inserted from the inside into the amplifier housing and a bayonet ring which interacts with the receptacle body and which, with the interposition of a sealing element on the reinforcement, core case is applied.
- the bayonet ring has at least one radially inward projection which can be inserted into at least one groove formed on the receiving body.
- the receiving body is provided with a radial annular groove which receives a sealing element which seals the receiving body from the bayonet ring .
- the receiving body has a radial extension which bears against the booster housing and on which a holding clamp is provided which serves to position the electrical lines. It also makes sense if the receiving body is provided with an anti-rotation device, which is preferably formed by a projection formed on the side of the extension facing the amplifier housing, which protrudes into a recess formed in the amplifier housing.
- FIG. 1 shows a longitudinal section of the brake booster according to the invention in a partial view
- 2 shows the receiving body of the cable bushing provided in the brake booster according to FIG. 1.
- the booster housing 1 of the vacuum brake booster according to the invention which is shown only schematically in FIG. 1, is divided by an axially movable wall 2 into a working chamber 3 and a vacuum chamber 4.
- the axially movable wall 2 consists of a circular, force-transmitting membrane plate 5 deep-drawn from sheet metal and an adjacent flexible membrane 6 made of a rubber-like material, which acts as a rolling membrane between the outer periphery of the membrane plate 5 and the booster housing 1 Sealing forms.
- a control housing not shown, which also accommodates a control valve, also not shown.
- a generally two-part, preferably two-part cable bushing is accommodated in an opening 8, which is preferably formed in the amplifier housing half shown on the left in the drawing, and essentially consists of a cylindrical receiving body 9 and a bayonet ring 10 encompassing the receiving body 9, its radial inward projections 11 cooperate with grooves 12 formed in the receiving body 9 or form a bayonet connection which holds the cable bushing 7 in the amplifier housing 1.
- An effective sealing of the cable bushing 7 against the amplifier housing 1 is established Sealing ring 13, which is axially pressed during assembly of the cable bushing 7 according to the invention between the surface of the amplifier housing 1 and the end face of the bayonet ring 10 facing the amplifier housing 1.
- a second sealing ring 14, which is arranged in a radial groove 15 formed in the receiving body 9, ensures that the receiving body 9 is sealed off from the bayonet ring 10.
- the above-mentioned receiving body 9 has an essentially cylindrical shape and has a section 16 projecting from the inside through the amplifier housing 1 in the region of the opening 8, which section merges into a radial enlargement 17 of larger diameter which lies in the assembled state of the cable duct inside the vacuum chamber 4 on the amplifier housing 1.
- a projection (not shown) projecting axially from the extension 17 is used, which is received by a recess formed at the edge of the opening 8.
- a holding clamp 24 is formed on the end face of the extension 17 and is used to position the cable section 25 which extends into the interior of the amplifier housing 1.
- FIG. 2 It can be seen from the central region of the receiving body 9 shown in FIG. 2, which is preferably shown as a partial section, that a plurality of lines 18, 19 combined to form an electrical cable harness 20 extend through the receiving body 9 without interruption.
- a plurality of lines 18, 19 combined to form an electrical cable harness 20 extend through the receiving body 9 without interruption.
- several, for example five, lines are buttoned onto a holding body 23, indicated by dashed lines in the drawing, which is preferably star-shaped in cross section. Plastic is then sprayed onto the arrangement thus prepared in a suitable injection mold.
- the portion 16 of the receiving body 9 protruding outward from the amplifier housing 1 is first inserted from the inside through the opening 8 and positioned such that the projection (not shown) which serves to prevent the receiving body 9 from rotating is inserted into the projection in the amplifier housing 1 trained recess engages and the receiving body 9 with its radial expansion 17 comes to rest on the amplifier housing 1. Then the aforementioned sealing ring 13 is placed around the receiving body 9, after which the bayonet ring 10 is fitted onto the receiving body 9 such that the projections 11 described at the outset are inserted into the grooves 12 in the receiving body 9.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE59704865T DE59704865D1 (de) | 1996-05-17 | 1997-05-16 | Pneumatischer bremskraftverstärker |
| EP97923919A EP0855977B1 (de) | 1996-05-17 | 1997-05-16 | Pneumatischer bremskraftverstärker |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19619954A DE19619954A1 (de) | 1996-05-17 | 1996-05-17 | Pneumatischer Bremskraftverstärker |
| DE19619954.9 | 1996-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1997044228A1 true WO1997044228A1 (de) | 1997-11-27 |
Family
ID=7794597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1997/002517 Ceased WO1997044228A1 (de) | 1996-05-17 | 1997-05-16 | Pneumatischer bremskraftverstärker |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0855977B1 (de) |
| DE (2) | DE19619954A1 (de) |
| ES (1) | ES2162295T3 (de) |
| WO (1) | WO1997044228A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999026824A1 (de) * | 1997-11-21 | 1999-06-03 | Continental Teves Ag & Co. Ohg | Anschlussanordnung mit einem pneumatikanschluss |
| WO1999028175A1 (de) * | 1997-12-02 | 1999-06-10 | Continental Teves Ag & Co. Ohg | Leitungsführung in einem vakuum-bremskraftverstärker |
| DE19834680A1 (de) * | 1998-07-31 | 2000-02-17 | Grieshaber Vega Kg | Abdichtvorrichtung für ein Kabel |
| DE19844468C2 (de) * | 1998-09-28 | 2003-06-26 | System Elektrotechnik Gotthold | Kabeldurchführung |
| DE19902034A1 (de) * | 1999-01-20 | 2000-07-27 | Continental Teves Ag & Co Ohg | Hydraulikaggregat mit Steckverbindung |
| DE19923464C2 (de) * | 1999-05-21 | 2002-04-25 | Siemens Ag | Abdichtvorrichtung für ein Leitungsbündel, Verfahren zum Abdichten eines Leitungsbündels und Verwendung der Abdichtvorrichtung |
| JP4680484B2 (ja) | 2001-03-21 | 2011-05-11 | コンチネンタル・テベス・アーゲー・ウント・コンパニー・オーハーゲー | 所定の角をなした位置を有する接続部材を具備するブレーキサーボ |
| DE10122952A1 (de) * | 2001-03-21 | 2002-09-26 | Continental Teves Ag & Co Ohg | Bremskraftverstärker mit einem Anschlußelement mit definierter Winkellage |
| DE102004007659B4 (de) * | 2004-02-17 | 2006-02-23 | Lucas Automotive Gmbh | Bremskrafterzeuger für eine hydraulische Fahrzeugbremsanlage |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3027378A1 (de) * | 1979-07-20 | 1981-01-29 | Tokico Ltd | Pneumatische verstaerkungseinrichtung |
| EP0616932A1 (de) * | 1993-03-26 | 1994-09-28 | Lucas Industries Public Limited Company | Bremskraftverstärkersystem zum Regeln eines Bremsdruckes mit einem Bremskraftverstärker |
| WO1995012511A1 (de) * | 1993-11-02 | 1995-05-11 | Lucas Industries Public Limited Company | Pneumatischer bremskraftverstärker |
| WO1995032879A1 (de) * | 1994-05-26 | 1995-12-07 | Lucas Industries Public Limited Company | Fahrzeugbremsanlage |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9003016U1 (de) * | 1990-03-12 | 1991-07-11 | Grote & Hartmann Gmbh & Co Kg, 5600 Wuppertal | Steckerkupplung für eine elektrische Steckerverbindung zur Durchkontaktierung einer Wand, insbesondere einer Karosseriewand eines Kraftfahrzeugs |
| DE4011165A1 (de) * | 1990-04-06 | 1991-10-10 | Teves Gmbh Alfred | Verfahren zur einstellung eines funktionsmasses |
| GB2283618A (en) * | 1993-11-01 | 1995-05-10 | Draftex Ind Ltd | Sealing arrangement |
| DE4404334A1 (de) * | 1994-02-11 | 1995-08-17 | Teves Gmbh Alfred | Betätigungseinheit für eine blockiergeschützte Kraftfahrzeugbremsanlage |
| DE4431882C1 (de) * | 1994-09-07 | 1995-11-02 | Lucas Ind Plc | Elektronisch regelbarer Bremskraftverstärker mit einer Leitungsdurchführung |
-
1996
- 1996-05-17 DE DE19619954A patent/DE19619954A1/de not_active Withdrawn
-
1997
- 1997-05-16 DE DE59704865T patent/DE59704865D1/de not_active Expired - Lifetime
- 1997-05-16 EP EP97923919A patent/EP0855977B1/de not_active Expired - Lifetime
- 1997-05-16 WO PCT/EP1997/002517 patent/WO1997044228A1/de not_active Ceased
- 1997-05-16 ES ES97923919T patent/ES2162295T3/es not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3027378A1 (de) * | 1979-07-20 | 1981-01-29 | Tokico Ltd | Pneumatische verstaerkungseinrichtung |
| EP0616932A1 (de) * | 1993-03-26 | 1994-09-28 | Lucas Industries Public Limited Company | Bremskraftverstärkersystem zum Regeln eines Bremsdruckes mit einem Bremskraftverstärker |
| WO1995012511A1 (de) * | 1993-11-02 | 1995-05-11 | Lucas Industries Public Limited Company | Pneumatischer bremskraftverstärker |
| WO1995032879A1 (de) * | 1994-05-26 | 1995-12-07 | Lucas Industries Public Limited Company | Fahrzeugbremsanlage |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19619954A1 (de) | 1997-11-20 |
| EP0855977B1 (de) | 2001-10-10 |
| EP0855977A1 (de) | 1998-08-05 |
| ES2162295T3 (es) | 2001-12-16 |
| DE59704865D1 (de) | 2001-11-15 |
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