Radial sealed air brake chamber

F - Mech Eng,Light,Heat,Weapons – 16 – J

Patent

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Details

F16J 3/02 (2006.01) B60T 17/08 (2006.01) F16D 65/14 (2006.01)

Patent

CA 2443764

A service brake actuator (10) having a housing base (20) having a center portion (38) and a housing cover (22) having a center portion (44) is provided. The center portion (38) of the housing base (20) and the center portion (44) of the housing cover (22) telescopingly fit together in an assembled position and define an annular space therebetween. A diaphragm (30) having a thickness greater than the thickness of the annular space between the center portion (38) of the housing base (20) and the center portion (44) of the housing cover (22) is held in the annular space by radial forces generated by compression of the diaphragm (30) in the annular space. It should be understood that the magnitude of the radial forces holding the diaphragm (30) in the annular space is variable depending on the thickness of the annular space.

La présente invention concerne un actionneur (10) de frein de service possédant une base de logement (20) présentant une partie centrale (38) et un couvercle de logement (22) présentant une partie centrale (44). La partie centrale (38) de la base de logement (20) et la partie centrale (44) du couvercle de logement (22) s'ajustent télescopiquement dans une position assemblée et définissent un espace annulaire compris entre les deux parties. Un diaphragme (30) présentant une épaisseur supérieure à l'épaisseur de l'espace annulaire compris entre la partie centrale (38) de la base de logement (20) et la partie centrale (44) du couvercle de logement (22) est maintenu dans l'espace annulaire par des forces radiales générées par la compression du diaphragme (30) dans l'espace annulaire. L'importance des forces radiales maintenant le diaphragme (30) dans l'espace annulaire est variable en fonction de l'épaisseur de l'espace annulaire.

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