A rotary displacement pump with space-saver radial

Details A rotary displacement pump with space-saver radial A rotary displacement pump with space-saver radial

F - Mech Eng,Light,Heat,Weapons

04

C

F04C 2/10 (2006.01) F01C 21/02 (2006.01) F04C 2/08 (2006.01) F04C 15/00 (2006.01)

Patent

CA 2647372

According to the invention, the rotary pump consists of an external gear (13) with internal teeth (16) in the form of a squirrel cage, and an internal gear (9), housed in an off-centre manner in the interior of said external gear (13) and fitted with external teeth (9D) intermeshing with said internal teeth (16) and consisting of a number of inferior teeth of a unit with the number of teeth of the later. The rotation means of said external teeth (13) comprise at least a bearing (11, 12) centrally laid out in a flange end (14,15) of said aforementioned external gear (13) and the aforementioned external gear (13) is at least partly dismantled in order to introduce said internal gear (9).

Selon l'invention, la pompe volumétrique rotative comporte un engrenage extérieur (13) à denture interne (16), en forme de cage d'écureuil ; et un engrenage intérieur (9), logé de façon excentrée à l'intérieur dudit engrenage extérieur (13) et pourvu d'une denture externe (9D) engrenant avec ladite denture interne (16) et comportant" un nombre de dents inférieur d'une unité au nombre de dents de cette dernière. Les moyens de rotation dudit engrenage extérieur (13) comportent au moins un palier (11 , 12) agencé centralement dans un flasque d'extrémité (14, 1 5) dudit engrenage extérieur (13) ; et ledit engrenage extérieur (13) est au moins en partie démontable pour pouvoir y introduire ledit engrenage intérieur (9).

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