Spring brake actuator with filtered vent openings

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

B - Operations, Transporting

60

T

B60T 17/08 (2006.01)

Patent

CA 2211546

A spring brake actuator (10), with a large-force compression spring (72) in a spring chamber (101) of the housing, has vent openings (102) in the housing communicating with the spring chamber (101). A gas permeable filter element (104) covers the vent openings (102), and a filter frame assembly (106) is disposed over the filter element. The filter frame assembly (106) defines tortuous air passages from the filter element (104) to atmosphere so that air entering the spring chamber from atmosphere will be substantially free of contaminants.

Un actuateur (10) de frein à ressort présentant un ressort de compression puissant (72) dans une chambre (101) à ressort du logement comprend des ouvertures (102) à air dans le logement, pour communiquer avec la chambre (101) à ressort. Un élément de filtre (104) perméable aux gaz couvre les ouvertures (102) à air et un ensemble de cadre (106) à filtre est placé sur l'élément de filtre. L'ensemble de cadre (106) à filtre définit des passages d'air tortueux entre l'élément de filtre (104) et l'atmosphère, pour que l'air entrant dans la chambre à ressort depuis l'atmosphère soit sensiblement exempt de contaminants.

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