Improvement to a pump body and method for making same

Details Improvement to a pump body and method for making same Improvement to a pump body and method for making same

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 53/10 (2006.01) B05B 11/00 (2006.01)

Patent

CA 2299520

The invention concerns a pump comprising in particular a substantially cylindrical single-piece body (1) provided, in its lower part, with an intake conduit (11) for the product and a valve consisting of a cavity (10) containing an element (2) capable of moving between a down stop (12b) corresponding to the closure of said intake conduit (11) and an up stop (12a) corresponding to the opening of said conduit (11). The invention is characterised in that the up stop (12a) is formed by at least one inner discontinuous projection (120) whereof the transverse dimension (X) measured in the cavity (10) is at least equal to 20 % of the greatest dimension of the mobile element (2).

L'invention concerne une pompe du type comprenant notamment un corps (1) sensiblement cylindrique en une seule pièce pourvu, dans sa partie inférieure, d'un conduit d'admission (11) du produit et d'un clapet constitué d'une cavité (10) renfermant un élément (2) susceptible de se déplacer entre une butée basse (12b) correspondant à l'obturation dudit conduit d'admission (11) et une butée haute (12a) correspondant à l'ouverture dudit conduit (11), caractérisée en ce que ladite butée haute (12a) est formée d'au moins une saillie interne discontinue (120) dont la dimension transversale (X) mesurée dans la cavité (10) est au moins égale à 20 % la plus grande dimension transversale de l'élément mobile (2).

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