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1. WO2021110272 - SPRING BRAKE ACTUATOR AND RETAINING DEVICE FOR SUCH SPRING BRAKE ACTUATOR

Publication Number WO/2021/110272
Publication Date 10.06.2021
International Application No. PCT/EP2019/083868
International Filing Date 05.12.2019
IPC
B60T 17/08 2006.1
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
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 17/086
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 2121/10
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
2121Type of actuator operation force
02Fluid pressure
08acting on a membrane-type actuator, e.g. for gas pressure
10for releasing a normally applied brake
Applicants
  • ZF CV SYSTEMS EUROPE BV [BE]/[BE]
Inventors
  • ARANGARASAN, Senthil Kumar
  • PREM KUMAR, Pratheesh Kumar
  • VENKATESH, Aravindda Swamy
Agents
  • SCHWARZWELLER, Thomas
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SPRING BRAKE ACTUATOR AND RETAINING DEVICE FOR SUCH SPRING BRAKE ACTUATOR
(FR) ACTIONNEUR DE FREIN À RESSORT ET DISPOSITIF DE RETENUE POUR LEDIT ACTIONNEUR DE FREIN À RESSORT
Abstract
(EN)
The invention relates to a spring brake actuator (2), in particular a parking or emergency spring brake actuator (2) for use in a commercial vehicle, said actuator (2) comprises: a cylinder housing (4) comprising a cylinder housing base (6), a spring brake piston (10) located in said cylinder housing (4) for applying a braking force, a spring guide (12) being attached to the spring brake piston (10), a compression spring (8) located between the cylinder housing base (6) and the spring guide (12) of the spring brake piston (10), said compression spring (8) being effective to push the spring brake piston (10) away from the base (6), wherein the spring guide (12) comprises a valve (14) and a retaining device (16) for retaining the valve (14), the retaining device (16) comprising a basic body (34) and clamping means (36) for clamping the device (16) to a spring guide (12). It is suggested that the clamping means (36) are arranged at the basic body (34) and along a circumference (38) of the basic body (34), wherein the clamping means (36) are spaced apart from each other forming slits (40) between the clamping means (36) to allow for a circulation of air through the slits (40).
(FR)
La présente invention concerne un actionneur (2) de frein à ressort, en particulier un actionneur (2) de frein à ressort de stationnement ou d'urgence destiné à être utilisé dans un véhicule utilitaire, ledit actionneur (2) comprend : un logement de cylindre (4) comprenant une base de logement de cylindre (6), un piston de frein à ressort (10) situé dans ledit logement de cylindre (4) pour appliquer une force de freinage, un guide de ressort (12) étant fixé au piston de frein à ressort (10), un ressort de compression (8) situé entre la base de logement de cylindre (6) et le guide de ressort (12) du piston de frein à ressort (10), ledit ressort de compression (8) étant efficace pour pousser le piston de frein à ressort (10) à l'opposé de la base (6), le guide de ressort (12) comprenant une vanne (14) et un dispositif de retenue (16) pour retenir la vanne (14), le dispositif de retenue (16) comprenant un corps de base (34) et des moyens de serrage (36) pour serrer le dispositif (16) sur un guide de ressort (12). Il est suggéré que les moyens de serrage (36) sont disposés au niveau du corps de base (34) et le long d'une circonférence (38) du corps de base (34), les moyens de serrage (36) étant disposés à distance l'un de l'autre formant des fentes (40) entre les moyens de serrage (36) pour permettre une circulation d'air à travers les fentes (40).
Latest bibliographic data on file with the International Bureau