BR0102932A - Válvula de freio a dois estágios - Google Patents

Válvula de freio a dois estágios

Info

Publication number
BR0102932A
BR0102932A BR0102932-0A BR0102932A BR0102932A BR 0102932 A BR0102932 A BR 0102932A BR 0102932 A BR0102932 A BR 0102932A BR 0102932 A BR0102932 A BR 0102932A
Authority
BR
Brazil
Prior art keywords
stage
pressure
valve
filler
pressure reduction
Prior art date
Application number
BR0102932-0A
Other languages
English (en)
Inventor
Manfred Becker
Original Assignee
Deere & Co
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 Deere & Co filed Critical Deere & Co
Publication of BR0102932A publication Critical patent/BR0102932A/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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/224—Master control, e.g. master cylinders with pressure-varying means, e.g. with two stage operation provided by use of different piston diameters including continuous variation from one diameter to another

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

"VáLVULA DE FREIO A DOIS ESTáGIOS". Uma válvula de freio a dois estágios tem um par de estágios com diferentes áreas efetivas que entram em ação em sucessão mediante um acionamento da válvula, incluindo uma câmara de enchimento de maior área e uma câmara de pressão de menor área. Uma válvula de alivio de pressão de estágio de enchimento é conectada entre a câmara de enchimento e um reservatório. A válvula de alivio inclui um elemento de válvula, que é exposto à pressão no reservatório e à força de mola, e que é exposto à pressão na câmara de enchimento de forma que se abre mediante uma pressão de freio prefixada existente na câmara de enchimento. A válvula de alivio também inclui um êmbolo de alivio de pressão que pode ser exposto à pressão na câmara de enchimento, e que pode ser exposto à pressão na câmara de pressão. O êmbolo tem uma extremidade livre que se engata com o elemento de válvula, e força o elemento de válvula na sua direção de abertura com crescente diferencial de pressão entre a câmara de pressão e a câmara de enchimento.
BR0102932-0A 2000-07-18 2001-07-17 Válvula de freio a dois estágios BR0102932A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10034787A DE10034787A1 (de) 2000-07-18 2000-07-18 Zweistufiges Ventil

Publications (1)

Publication Number Publication Date
BR0102932A true BR0102932A (pt) 2002-03-05

Family

ID=7649245

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0102932-0A BR0102932A (pt) 2000-07-18 2001-07-17 Válvula de freio a dois estágios

Country Status (7)

Country Link
US (1) US6502396B2 (pt)
EP (1) EP1174321B1 (pt)
AT (1) ATE240228T1 (pt)
BR (1) BR0102932A (pt)
CA (1) CA2352635A1 (pt)
DE (2) DE10034787A1 (pt)
MX (1) MXPA01007296A (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4385001B2 (ja) * 2005-03-31 2009-12-16 日信工業株式会社 液圧ブースタ
CA3023021C (en) * 2016-05-04 2020-12-29 Ginda New-Tech Co., Ltd. Hydraulic brake device with a time difference and assembly thereof
CN108860036B (zh) * 2018-07-26 2023-08-29 重庆交通职业学院 一种汽车防撞梁用可调阻尼式液压吸能机构
CN112810591A (zh) * 2021-03-05 2021-05-18 江苏沃得农业机械股份有限公司 一种单路二级压力增压制动泵

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172869A (en) * 1981-04-14 1982-10-23 Akebono Brake Ind Co Ltd Differential master cylinder
DE4130832C1 (pt) * 1991-09-17 1993-05-13 Deere & Co., Moline, Ill., Us, Niederlassung Deere & Co. European Office, 6800 Mannheim, De
DE4132245C2 (de) 1991-09-27 1994-03-10 Deere & Co Zweistufiges Ventil

Also Published As

Publication number Publication date
DE50100240D1 (de) 2003-06-18
EP1174321B1 (de) 2003-05-14
ATE240228T1 (de) 2003-05-15
US6502396B2 (en) 2003-01-07
CA2352635A1 (en) 2002-01-18
US20020007635A1 (en) 2002-01-24
MXPA01007296A (es) 2003-05-19
DE10034787A1 (de) 2002-01-31
EP1174321A1 (de) 2002-01-23

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]