BR0114378A - Servofreio pneumático - Google Patents

Servofreio pneumático

Info

Publication number
BR0114378A
BR0114378A BR0114378-6A BR0114378A BR0114378A BR 0114378 A BR0114378 A BR 0114378A BR 0114378 A BR0114378 A BR 0114378A BR 0114378 A BR0114378 A BR 0114378A
Authority
BR
Brazil
Prior art keywords
power
piston
input element
power input
servo brake
Prior art date
Application number
BR0114378-6A
Other languages
English (en)
Inventor
Albert Zinndorf
Gerd Puscher
Original Assignee
Lucas Automotive Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lucas Automotive Gmbh filed Critical Lucas Automotive Gmbh
Publication of BR0114378A publication Critical patent/BR0114378A/pt

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
    • B60T13/573—Vacuum systems indirect, i.e. vacuum booster units characterised by reaction devices
    • 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
    • B60T13/575—Vacuum systems indirect, i.e. vacuum booster units characterised by reaction devices using resilient discs or pads

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

"SERVOFREIO PNEUMáTICO". A invenção diz respeito a um servofreio (10), particularmente para veículos motorizados. O servofreio (10) possui uma válvula de controle (22), a qual pode controlar um diferencial de pressão pneumática, um elemento de entrada de potência (24), o qual pode atuar a válvula de controle (22), um elemento de saída de potência (38), o qual pode transmitir potência de frenagem, e um disco de reação (34), o qual fica arranjado entre o elemento de saída de potência (38) e o elemento de entrada de potência (24), e que eito de um material de elastómero. Arranjado entre o disco de reação (34) e o elemento de entrada de potência (24) fica um dispositivo (30) que atua no disco de reação a fim de alterar a relação de transmissão de potência entre o elemento de entrada de potência (24) e o elementos de saída de potência (38) de acordo com a potência exercida no elemento de entrada de potência. O dispositivo (30) compreende um pistão interno deslocável (50) e um pistão externo (54), o qual é deslocável em relação ao pistão interno (50) que fica em torno do dito pistão interno de uma maneira radial. O pistão interno (50) consiste de uma reentrância radialmente externa, ou o pistão externo (52) consiste de uma reentrância radialmente interna (50'), para receber partículas de material que são cobertas pelo outro respectivo pistão (50, 52).
BR0114378-6A 2000-10-04 2001-09-28 Servofreio pneumático BR0114378A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10049106A DE10049106B4 (de) 2000-10-04 2000-10-04 Pneumatischer Bremskraftverstärker mit veränderlichem Kraftübersetzungsverhältnis
PCT/EP2001/011256 WO2002030725A1 (de) 2000-10-04 2001-09-28 Pneumatischer bremskraftverstärker mit veränderlichem kraftübersetzungsverhältnis

Publications (1)

Publication Number Publication Date
BR0114378A true BR0114378A (pt) 2003-08-12

Family

ID=7658634

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0114378-6A BR0114378A (pt) 2000-10-04 2001-09-28 Servofreio pneumático

Country Status (10)

Country Link
US (1) US6739234B2 (pt)
EP (1) EP1322510B1 (pt)
JP (1) JP2004510636A (pt)
KR (1) KR20030045105A (pt)
CN (1) CN1248893C (pt)
AU (1) AU2002220576A1 (pt)
BR (1) BR0114378A (pt)
DE (2) DE10049106B4 (pt)
ES (1) ES2217201T3 (pt)
WO (1) WO2002030725A1 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6959637B1 (en) 2004-08-31 2005-11-01 Robert Bosch Gmbh Vacuum brake booster
FR2923201B1 (fr) * 2007-11-06 2012-07-27 Bosch Gmbh Robert Palpeur pour servomoteur d'assistance au freinage.
FR2949739B1 (fr) 2009-09-07 2011-10-14 Bosch Gmbh Robert Piston d'actionneur de servofrein et servofrein equipe d'un tel piston.
JP5395267B2 (ja) * 2010-06-23 2014-01-22 ボッシュ株式会社 負圧倍力装置、この負圧倍力装置を備えたブレーキシステム、および負圧倍力装置のプレートプランジャの製造方法
JP2013075596A (ja) * 2011-09-30 2013-04-25 Hitachi Automotive Systems Ltd 気圧式倍力装置
CN112874496A (zh) * 2021-02-26 2021-06-01 高小明 一种汽车制动用真空助力器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4020904A1 (de) * 1990-06-30 1992-01-02 Teves Gmbh Alfred Unterdruck-bremskraftverstaerker
GB9103468D0 (en) * 1991-02-19 1991-04-03 Automotive Prod Plc Direct acting vacuum servo
GB9313612D0 (en) 1993-07-01 1993-08-18 Lucas Ind Plc Brake booster
JP3811869B2 (ja) * 1997-02-19 2006-08-23 株式会社日立製作所 気圧式倍力装置
US6422124B1 (en) * 1997-11-14 2002-07-23 Continental Teves Ag & Co., Ohg Brake power transmission device, especially for motor vehicles
FR2777851B1 (fr) * 1998-04-24 2000-06-09 Bosch Syst Freinage Servomoteur pneumatique a auto-assistance controlee en effort
DE19916579B4 (de) * 1999-04-13 2004-01-29 Lucas Industries P.L.C., Solihull Pneumatischer Bremskraftverstärker mit veränderlichem Kraftübersetzungsverhältnis

Also Published As

Publication number Publication date
US20030168910A1 (en) 2003-09-11
DE50102074D1 (de) 2004-05-27
JP2004510636A (ja) 2004-04-08
WO2002030725A1 (de) 2002-04-18
US6739234B2 (en) 2004-05-25
DE10049106A1 (de) 2002-04-18
EP1322510B1 (de) 2004-04-21
DE10049106B4 (de) 2006-05-18
AU2002220576A1 (en) 2002-04-22
KR20030045105A (ko) 2003-06-09
ES2217201T3 (es) 2004-11-01
EP1322510A1 (de) 2003-07-02
CN1468182A (zh) 2004-01-14
CN1248893C (zh) 2006-04-05

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Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time