Vane pump comprising a two-part stator

Details Vane pump comprising a two-part stator Vane pump comprising a two-part stator

F - Mech Eng,Light,Heat,Weapons

04

C

F04C 2/356 (2006.01)

Patent

CA 2580385

A rotary displacement pump, comprising: (a) a stator (42); (b) a rotor including a shaft portion (8) and a radially protruding web (12) having a configuration of an undulatory disk type; (c) a scraper (110) having an engagement slot (112) of predetermined radial height and predetermined axial width, the engagement slot (112) engaging said protruding web (12) of said rotor; (d) said stator (42) including a generally cup shaped first member (44) and a generally cup shaped second member (46), and defining a circumferential wall, (e) said scraper (110) being arranged within said stator (42), supported to be retained in circumferential direction and to allow a reciprocating movement in a substantially axial direction; (f) said stator (42) together with said scraper (110) defining -an inlet chamber (138), having an inlet port (68), of said pump (2), -an outlet chamber (142), having an outlet port (70), of said pump (2), -and a channel (140) extending from said inlet chamber (138) to said outlet chamber (142), said scraper (110) forming a partition between said inlet chamber (138) and said outlet chamber (142), and said web (12) of said rotor being rotatable through said inlet chamber (138), said channel, said outlet chamber (142) and said slot (112) of said scraper (110).

La présente invention se rapporte à une pompe volumétrique rotative, qui comprend : (a) un stator (42) ; (b) un rotor comportant une partie arbre (8) et un bras (12) faisant saillie radialement et doté d'une configuration de type disque oscillant ; (c) un racleur (110) présentant une rainure de prise (112) d'une hauteur radiale et d'une largeur axiale prédéterminées, la rainure de prise (112) venant en prise avec le bras (12) en saillie dudit rotor ; (d) ledit stator (42) comprenant un premier élément (44) et un second élément (46) sensiblement cupuliformes et définissant une paroi périphérique ; (e) ledit racleur (110) étant disposé à l'intérieur du stator (42), supporté de manière à être retenu sur sa périphérie et à permettre un mouvement réciproque dans une direction sensiblement axiale ; (f) ledit stator (42) définissant, conjointement avec ledit racleur (110), une chambre d'entrée (138) de la pompe (2), dotée d'un orifice d'entrée (68), une chambre de sortie (142) de la pompe (2), dotée d'un orifice de sortie (70), et un canal (140) s'étendant de la chambre d'entrée (138) à la chambre de sortie (142) ; ledit racleur (110) formant une cloison entre la chambre d'entrée (138) et la chambre de sortie (142), et le bras (12) dudit rotor pouvant tourner à travers la chambre d'entrée (138), le canal, la chambre de sortie (142) et la rainure (112) du racleur (110).

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