Spring brake actuator with filtered service vent openings

Details Spring brake actuator with filtered service vent openings Spring brake actuator with filtered service vent openings

B - Operations, Transporting

60

T

B60T 13/26 (2006.01) B60T 17/08 (2006.01) F16D 65/14 (2006.01)

Patent

CA 2219032

A fluid-operated brake actuator (10) having a housing (21, 22) with one or more vent openings (44) in communication with an interior chamber (30) is provided with a filter assembly (300) mounted to the housing (21) over the vent openings (44). The filter assembly (300) includes a gas permeable filter element (306), and defines tortuous air passages (A) through the filter element to the atmosphere so that air entering the service brake inner chamber (30) from the atmosphere will be substantially free of contaminants.

Un actionneur de frein fluidique (10) possède une enceinte (21, 22) avec une ou plusieurs ouvertures d'évent (44) en communication avec une chambre intérieure (30) pourvue d'un ensemble filtre (300) monté sur l'enceinte (21) au-dessus des ouvertures d'évent (44). L'ensemble filtre (300) comprend un élément filtre perméable au gaz (306) et définit des passages d'air tortueux (A) à travers l'élément filtre et s'ouvrant à l'atmosphère afin que l'air entrant dans la chambre interne (30) du frein et provenant de l'atmosphère soit pratiquement exempt de contaminants.

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