Pump device with collapsible pump chamber and including...

Details Pump device with collapsible pump chamber and including... Pump device with collapsible pump chamber and including...

B - Operations, Transporting

05

B

B05B 11/00 (2006.01)

Patent

CA 2201898

A collapsible pump chamber (60) is provided which includes several functional elements of a pump device. For example, the collapsible pump chamber (60) may be a bellows which includes a functional element of an outlet valve (80), a functional element of a biasing feature, and a functional element of a spin chamber. Consequently, functional elements of all of the downstream functions are incorporated into the bellows. This can significantly reduce costs; due to reduced tooling, and assembly, for example. Dunnage means (51) is provided for occupying volume within the collapsible pump chamber (60) to improve pump priming. The dunnage means (51) may be free floating or associated with the inlet valve (50). A process is provided for severing the functional element of the outlet valve (80), the functional element of the biaising feature, and the functional element of a spin chamber from the collapsible pump chamber (60) during assembly.

Corps de pompe comprimable (60) comprenant plusieurs éléments fonctionnels d'un dispositif de pompage. Par exemple, le corps de pompe comprimable (60) peut être un soufflet comprenant un élément fonctionnel de clapet (80), un élément fonctionnel d'une caractéristique variable, et un élément fonctionnel de la chambre de pompage. Les éléments fonctionnels de toutes les fonctions en aval sont donc intégrés au soufflet. Il peut en résulter une réduction importante des coûts, en raison notamment d'exigences moindres en matière d'outillage et d'assemblage. Des éléments de remplissage (51) destinés à occuper du volume dans le corps de pompe comprimable (60) pour améliorer l'amorçage de la pompe. Les éléments de remplissage (51) peuvent être à mouvement libre ou être rattachés au clapet d'aspiration (50). Un procédé permet d'enlever l'élément fonctionnel du clapet de refoulement (80), l'élément fonctionnel de la caractéristique variable, et l'élément fonctionnel de la chambre de pompage du corps de pompe comprimable (60), pendant l'assemblage.

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