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1. WO2020194078 - A SPRING BRAKE ACTUATOR FOR A VEHICLE, IN PARTICULAR PARKING OR EMERGENCY BRAKE ACTUATOR FOR USE IN A COMMERCIAL VEHICLE

Publication Number WO/2020/194078
Publication Date 01.10.2020
International Application No. PCT/IB2020/051778
International Filing Date 03.03.2020
IPC
B60T 17/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE 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
17Component parts, details, or accessories of brake systems not covered by groups B60T8/, B60T13/ or B60T15/170
08Brake cylinders other than ultimate actuators
F16D 65/28 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
65Parts or details of brakes
14Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
28arranged apart from the brake
F16J 3/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
3Diaphragms; Bellows; Bellows pistons
02Diaphragms
CPC
B60T 17/083
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
17Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
08Brake cylinders other than ultimate actuators
083Combination of service brake actuators with spring loaded brake actuators
B60T 17/085
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
17Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
08Brake cylinders other than ultimate actuators
085Spring loaded brake actuators
B60T 17/086
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
17Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
08Brake cylinders other than ultimate actuators
085Spring loaded brake actuators
086Spring loaded brake actuators with emergency release device
F16D 65/28
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
65Parts or details
14Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
28arranged apart from the brake
Applicants
  • WABCO INDIA LIMITED [IN]/[IN]
Inventors
  • ARANGARASAN, Senthil Kumar
  • RAMASAMY, Arun Sakthees
  • VENKATESH, Aravindda Swamy
Agents
  • AHUJA, Sudhir D.
  • GUPTA, Sekhar Ranjan
  • BHATTACHARYA, Indrani Saha
  • GUE, Sujit Kumar
  • GUPTA, Rupsa
  • DAS, Snigdha Rani
Priority Data
20194101208227.03.2019IN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) A SPRING BRAKE ACTUATOR FOR A VEHICLE, IN PARTICULAR PARKING OR EMERGENCY BRAKE ACTUATOR FOR USE IN A COMMERCIAL VEHICLE
(FR) ACTIONNEUR DE FREIN À RESSORT POUR UN VÉHICULE, EN PARTICULIER ACTIONNEUR DE FREIN DE STATIONNEMENT OU D'URGENCE DESTINÉ À ÊTRE UTILISÉ DANS UN VÉHICULE UTILITAIRE
Abstract
(EN)
The invention relates to a spring brake actuator (1) for a vehicle comprising a cylinder housing (2) having a base (5) and a spring seat (7) on the base, a spring brake piston (9) located in said housing (5) for applying a braking force, a compression spring (11) arranged between the spring seat (7) and the piston (9), the spring being effective to push the piston (9) away from the base (5), wherein the housing (2) is divided into a spring chamber (12) and a pressure chamber (14), the compression spring being arranged in the spring chamber and the pressure chamber being supplied with pressurized fluid. The spring brake actuator (1) comprises an elastically deformable diaphragm (16) that comprises an annular flange (17) which is sealingly mounted to the housing (2) and an inner periphery (18) which is sealingly mounted to the piston (9) such that the pressure chamber (14) is fluid-tightly isolated from the spring chamber (12).
(FR)
La présente invention concerne un actionneur de frein à ressort (1) pour un véhicule comprenant un boîtier de cylindre (2) présentant une base (5) et un siège de ressort (7) sur la base, un piston de frein à ressort (9) situé dans ledit boîtier (5) destiné à appliquer une force de freinage, un ressort de compression (11) agencé entre le siège de ressort (7) et le piston (9), le ressort étant efficace pour pousser le piston (9) à l'opposé de la base (5), le boîtier (2) étant divisé en une chambre de ressort (12) et une chambre de pression (14), le ressort de compression étant agencé dans la chambre de ressort et la chambre de pression étant alimentée en fluide sous pression. L'actionneur de frein à ressort (1) comprend un diaphragme élastiquement déformable (16) qui comprend une bride annulaire (17) qui est montée de manière étanche sur le boîtier (2) et une périphérie interne (18) qui est montée de manière étanche sur le piston (9) de sorte que la chambre de pression (14) est isolée de manière étanche aux fluides de la chambre de ressort (12).
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