• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to the field of mechanical engineering, in particular to the brake of automobiles. The purpose of the invention is to increase reliability in operation. In station 8, the pin 10 of the piston 7 is mounted a distributor-Y valve controlled by the rod 2. On the rod 2 a longitudinal slide sleeve 30 is installed. A return spring 33 is placed between the flange 32 and the holding plate 25. The flange 34 abuts against the flange 44 of the rod 21 and a support surface 35 in the stop 40 on a tubular support member 37 rigidly connected to the rear part 3 of the housing 1. A stopper 46 is installed in the channel 29 and is included in the peripheral groove 47 of the plunger 20. This embodiment of the amplifier control unit ensures zero idling of the rod 21 2 z. . f-ly, 1 ill. |. W oo Gchee a 00 soy
    公开号:SU1326189A3
    申请号:SU853865854
    申请日:1985-03-18
    公开日:1987-07-23
    发明作者:Карре Жан-Жак；Тиукс Ален
    申请人:Сосьете Аноним Д.Б.А. (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to mechanical engineering, in particular to automobile brakes.
    The purpose of the invention is to increase the reliability of work.
    The drawing shows a vacuum brake booster, a longitudinal section.
    The vacuum brake booster comprises a housing I obtained by tightly connecting the front 2 and rear 3 parts. Inside, the housing 1 is divided into a front vacuum chamber 4 connected by means of a nozzle 5 installed in the front part 2j with a vacuum source, for example, an intake manifold of a car, and a rear working chamber 6 separated from the chamber 4 by a piston 7. The piston 7 includes an annular diaphragm 8 and the reinforcement plate 9 mounted on the hub 10, inside of which the control valve 11 is mounted. The hub 10 contains a rear part 12 of a smaller diameter of a tubular shape, mounted with the possibility of hermetic movement relative to About the rear part 3 of the housing 1 by means of a guide and a sealing element formed by the annular guide 13 and the sealing ring 14. Part 12. The hub 10 is mounted for movement in the rear tubular extension 1 of the rear part 3 of the housing. The housing 1 is co-supporting and holds the front ring stiffener 16 and the rear ring stiffener 17, fastened respectively on the front part 2 and the rear part 3, on which the fastening bolts 8 and 19 are attached, respectively, for fastening the master cylinder (not shown) on the front part 2 and for attaching the master cylinder to an amplifier on a vehicle (not shown).
    In the central seat of the central part of the hub 10 of the piston 7, the plunger 20 of the valve 1 1 is mounted for movement, rigidly connected to a ball joint made at one end of the control rod 21, at the other end of which is made a link 22 of the hinge stem 21 with the brake pedal of the car (not shown) .. The rear part of the plunger 20 forms a movable annular seat 23 of valve I1, intended for
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    interaction with the reinforced front part of the tube flap 24, made of elastomer and installed against the inner shoulder of the rear part 12 of the hub with the help of a tubular retaining plate 25 having a Z-or L-shaped section. In addition, the central part of the hub 10 includes an annular fixed seat 26 of the valve 1 1 located centrally around the plunger 20 and also intended for selective interaction with the front surface of the shutter 24 .. The front surface of the shutter 24 is pressed in the direction towards the fixed 26 and movable 23 saddles the valve by means of a capped spring 27, abutting against the inner surface of the tubular retaining plate 25. In the hub 10 there are longitudinal channels 28 and a radial channel 29, which serves to provide I1 and between the valve 4 and the vacuum and working chambers 6 respectively.
    The stem 21 is mounted with the possibility of longitudinal movement of the sleeve 30, which consists of a tubular part 31 worn on the cylindrical part of the rod 21 and a front flange 32 forming a supporting surface for the spiral conical return spring 33 of the rod 21, the other end of which abuts against the middle part tubular retaining plate 25. At the end opposite the flange 32 of the sleeve 30 there is another flange 34 that runs radially outward and continued with a truncated cone shaped part ending with a supporting surface 35. At the rear part 12 of the hub 10 around the stem 21 (in this case around the sleeve 30) is installed annular filter element 36,
    designed to clean the atmospheric air passing inside the rear part 12 of the hub 10 to the valve 1 1 and penetrating during deceleration into the rear chamber 6.
    The tubular stop member 37, rigidly attached to the housing 1, is located. around the rear part 12 of the hub 10 extending beyond the rear part 3 of the housing and abuts against the surface 35 of the sleeve 30. The tubular abutment member 37 with its front end
    38 back (in the peripheral groove
    39 guides 13, and on the counter
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    A false ei o end (i.e., rear end) is provided with an annular restrictor 40, bent radially inward and in contact with the surface 35 of the sleeve 30. In the annular space between the tubular thrust element 37 and the rear part 2 of the hub 10 a protective sealing accord 41 is installed, the front end of which mounted on the guide 13, and the rear end is embedded inside the rear end of the rear part 12 of the hub 10. The booster is supplemented with an output rod 42 mounted on the central part of the hub 10 and intended to interact with the primary porgan specified th master cylinder, wherein between the output rod 42 and the plunger 20 of the valve 11 is mounted an annular gasket 43 of an elastomer. On the rod 21, at the place of its connection with the .error 22, a shoulder 44 protrudes, engaging with the flange 34 of the sleeve 30, moving the latter together with the rod 21 during braking so as to accompany the movement of the piston 7, overcoming the resistance of its return spring 45 installed between the front element 16 stiffness and the hub 10.
    In the manufacture of the dimensions of the parts of the amplifier are selected so that these parts take up the position shown in the drawing, t, e. under the action of the return spring 45, the piston 7 is located at some short distance from the rear part 3, the sleeve 30 with its surface 35 abuts against the stop 40 of the abutment element 37, and its flange 34 abuts against the collar 44 of the rod 21, and The 23 valve seats are coplanar and hermetically pressed against the front surface of the flap 24. When the booster is in place and connected to a vacuum source, the vacuum created in the vacuum chamber 4 first moves the piston 7 forward and moves the front over the top the flap 24 from the fixed seat 26 of the valve (the front surface of the flap 24 remains pressed against the movable seat 23 of the valve under the action of the return spring 33, and also since the trench 34 abuts against the collar 44 of the stem 21), due to the gap between the fixed seat
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    scrap 26 p and valve 24, through channel 29, communication is established between the vacuum chamber 4 and the working chamber 6, and as a result, a pressure is formed in the working chamber, approximately the same pressure in the vacuum chamber 4, which allows the return spring 45 to return the piston 7 to the position which he previously occupied, i.e. to the position when the fixed valve seat 26 again abuts against the flap 24, due to the floating connection of the rod 21 (and the plunger 20) with the sleeve 30, the latter is not associated with the installation in place of the rod 21, and the piston 7 may have a shape corresponding to zero dead course, regardless of the size of the hub 10 and the housing 1.
    When braking, the amplifier works as follows.
    When the rod 21 is displaced to the left (in the drawing) from the non-operating position (in which there is equal pressure in both chambers 4 and 6), the movable seat 23 of the valve 11 moves away from the front surface of the shutter 24, which remains pressed against the fixed seat 0 26 of the valve 1 1, allowing atmofire iy air penetrates through the filter element .36 into the working chamber 6 through channel 29, as a result, on both sides, the pressure 7 creates a pressure difference that moves the piston 7 in the direction of actuation of the rod 21. action The return spring 33 (and the brake pedal return spring) retract. In this case, the movable seat 23 of the valve 1I strongly pushes back the valve 24, overcoming the resistance of the valve spring 25 and gives the valve g 24 from the stationary seat 26 of the valve 11, as a result a rapid pressure drop occurs in the working chamber 6 and under the action of the return spring 45 the piston 7 returns in non-working position, departure to the rear part of the body. At the end of this reverse movement, the sleeve 30 with the surface 35 abuts against the stop 40 of the retaining element 37 so that the return spring 33 depresses the porgen 7 to its non-operating position when the fixed seat 26 of the valve 11 abuts against the front flap 24 in the plane defined by the movement 5
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    5 13 with the seat 23 of the valve 11, in the off position of the plunger 20.
    In order for the amplifier to be able to carry out pull-out tests, consisting in applying a 21 ton force to the rod (to the right in the drawing) of considerable magnitude, a stopper 46 is provided and a like shape rigidly inserted into the channel 29. The cut out and the end of the stopper 46 inserts into the gap in the peripheral groove 46 formed by the central part of the smaller diameter a of the plunger 20 and bounded by an annular collar 48 in front. With this arrangement, when the rod 21 is affected by a specified pulling force of considerable magnitude, the plunger -. 20 with its annular shoulder 48 rests on the stopper 46, which will transfer this pressing force to the piston 7, which is pressed against the rear stiffening element 17, / T so that when the braking is stopped, the plunger 20 can ensure that the flap 24 deviates from the fixed seat 26 of the valve 11, The groove 47 has an axial dimension such that 8 in the non-operating position, represented by 1P1OM in the drawing, there is a significant gap between the stopper 46 and the flange 48.
    In the case of an inoperative position on the vehicle, the pedal connected to the shackle 22 is in close proximity to the rear end 12 of the hub, a diametrical slot 49 is provided in the rear part of the tubular retaining element 37, which is axially inserted. pedal with full squeezing it,
    权利要求:
    Claims (3)
    [1]
    Formula
    A vacuum brake booster, containing case, consisting of front and rear parts, forming the case cavity, divided into vacuum and working chambers by a piston, pressed by a spring to the rear part of the case, and a piston hub, inside of which a distribution valve is mounted immovable section; tso, on ;,), 13op; known in the hub, coaxially, q: n (zhnoe sdlo, formed at the end of b) unzha1) a, i have 1i; th central part
    VPIIPIZakaz 3128 / 58Tira.zh.598 Todsh1Sno e
    Iroiz.-noligr. pr-tie, Uzhgorod, st. Project, 4
    896
    smaller diameter, installed with the possibility of axial movement ;; the hub of the piston and connected to the control rod, and the valve shut-off element in the form of a tubular valve, elastically pressed against the valve seats, also has a return spring of the control rod mounted coaxially with the rod between the stop in the hub and the sleeve flange mounted on the control rod. the stem and the abutting bearing surface on the other flange in the collar on the control rod while the rear part of the hub is installed with the possibility of sliding in the tubular extension of the rear part of the body by means of an annular guide a sealing ring installed in a tubular extension of the rear part of the housing, the rear part of the hub is enclosed in a sealing corrugated cover connected to the outer end of the rear part of the hub, the tubular abutment element located concentrically around the rear part of the hub is connected to the rear part of the housing and forming a bent end to the control rod end, a fixed stop, and in a stucice there is a radial channel through which the valve is open; it is connected to the working chamber, which is different. In order to increase reliability of operation, the sleeve is mounted on the control rod with the possibility of longitudinal sliding, the flange of the sleeve from the side of the collar on the rod is made with radial expansion, forming a second bearing surface for interacting with the limiter, and in the radial channel of the hub the stopper, entering with its end into the central part of the smaller diameter of the plunger.
    [2]
    2. The amplifier according to claim 1, which is the fact that the tubular abutment member is connected to the rear part of the body through an annular guide.
    [3]
    3. The amplifier according to claim 1, about tl and - due to the fact that the rear end of the tubular abutment element is diametrically cut
    in the axial direction}
    类似技术:
    公开号 | 公开日 | 专利标题
    US3053235A|1962-09-11|Fluid pressure motor construction
    SU1326189A3|1987-07-23|Vacuum brake booster
    JP4647598B2|2011-03-09|Booster with reduced death process and braking system including such a booster
    US7080588B2|2006-07-25|Negative pressure type booster
    GB2222213A|1990-02-28|Hydraulic cylinder
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    US4729287A|1988-03-08|Vacuum-operated brake power booster having diaphragm edge bead retention member
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    US5320024A|1994-06-14|Vacuum brake force booster for automotive vehicles
    US4406213A|1983-09-27|Mechanically controlled brake power booster
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    US4594937A|1986-06-17|Servomotor for braking assistance
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    US4505112A|1985-03-19|Master cylinder
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    US7121094B2|2006-10-17|Center valve for master cylinder
    US20190031168A1|2019-01-31|Negative-pressure type booster device
    同族专利:
    公开号 | 公开日
    CA1236149A|1988-05-03|
    RO91585B|1987-05-31|
    AU4014985A|1985-09-26|
    YU46657B|1994-01-20|
    ES541422A0|1986-05-16|
    RO91585A|1987-05-15|
    EP0158552A1|1985-10-16|
    FR2561599A1|1985-09-27|
    BR8501334A|1985-11-19|
    KR850006344A|1985-10-05|
    JPS60219152A|1985-11-01|
    US4756232A|1988-07-12|
    PT80136A|1985-04-01|
    MX157620A|1988-11-30|
    DE3560434D1|1987-09-17|
    PL146077B1|1988-12-31|
    JPH0558950B2|1993-08-27|
    KR930000834B1|1993-02-06|
    PL252467A1|1985-11-19|
    YU37885A|1988-10-31|
    ES8607137A1|1986-05-16|
    AU560826B2|1987-04-16|
    PT80136B|1987-05-29|
    FR2561599B1|1986-08-22|
    EP0158552B1|1987-08-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1192532B|1959-08-21|1965-05-06|Bendix Corp|Power-assisted device, in particular for actuating the brakes of motor vehicles|
    US3183789A|1963-05-14|1965-05-18|Kelsey Hayes Co|Fluid pressure motor mechanism|
    DE2210776A1|1972-03-07|1973-09-13|Bosch Gmbh Robert|CONTROL VALVE|
    US3937126A|1974-03-29|1976-02-10|The Bendix Corporation|Reaction hold-off means for a two stage servomotor|
    JPS51116392U|1975-03-14|1976-09-21|
    JPS5498984U|1977-12-24|1979-07-12|
    JPS5945537B2|1978-10-31|1984-11-07|Nisshin Kogyo Kk|
    JPS5851505B2|1979-02-02|1983-11-16|Nisshin Kogyo Kk|
    JPS5914301Y2|1979-07-24|1984-04-26|
    JPS5845379B2|1979-11-09|1983-10-08|Aisin Seiki|
    JPS5689754U|1979-12-14|1981-07-17|
    US4296770A|1980-01-28|1981-10-27|Eaton Corporation|Freeze drain valve|
    JPH032706B2|1980-04-21|1991-01-16|Jidosha Kiki Co|
    JPS627021B2|1980-09-26|1987-02-14|Nisshin Kogyo Kk|
    JPS6228533Y2|1980-11-12|1987-07-22|
    US4522031A|1981-06-17|1985-06-11|The Bendix Corporation|Fluid pressurizing device|
    JPS6230833Y2|1982-07-20|1987-08-07|
    JPS5918058A|1982-07-23|1984-01-30|Jidosha Kiki Co Ltd|Hydraulic servo brake|
    FR2561599B1|1984-03-21|1986-08-22|Dba|BRAKE ASSISTANCE SERVOMOTOR|FR2561599B1|1984-03-21|1986-08-22|Dba|BRAKE ASSISTANCE SERVOMOTOR|
    FR2580570B1|1985-04-17|1987-06-26|Bendix France|BRAKE ASSIST SERVO MOTOR COMPRISING A STOP CONTACTOR|
    FR2587289B1|1985-09-19|1987-11-27|Bendix France|BRAKE ASSISTANCE SERVOMOTOR|
    FR2587955B1|1985-09-30|1987-12-24|Bendix France|PNEUMATIC BRAKE SUPPORT SERVOMOTOR|
    FR2587956B1|1985-09-30|1987-12-24|Bendix France|BRAKE ASSIST MOTOR|
    FR2588814B1|1985-10-22|1988-05-27|Bendix France|SERVOMOTOR WITH BRAKE ASSISTANCE LOW PRESSURE AND METHOD FOR ADJUSTING SUCH A SERVOMOTOR|
    FR2603543B1|1986-09-10|1988-11-10|Bendix France|PNEUMATIC BRAKE SUPPORT SERVOMOTOR|
    JPH0722369Y2|1987-10-30|1995-05-24|自動車機器株式会社|Brake booster|
    US5158006A|1990-06-05|1992-10-27|Jidosha Kiki Co., Ltd.|Brake booster|
    US5161453A|1991-08-14|1992-11-10|Allied-Signal Inc.|Actuation and flow control for a valve|
    JP3214772B2|1994-01-25|2001-10-02|日信工業株式会社|Booster shell reinforcement structure for negative pressure booster|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8404388A|FR2561599B1|1984-03-21|1984-03-21|BRAKE ASSISTANCE SERVOMOTOR|
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