F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
F04C 2/356 (2006.01)
Patent
CA 2580387
The invention a rotary displacement pump including a stator (42) fixed in a housing (20) a rotor including a shaft portion (8) and a radially protruding web (12) having a configuration of an undulatory disk type; 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; a guide (92) retains and scraper (110), configuration of a recessed plate and being - directly or indirectly - fixed in said housing (20), wherein the guide (92) retains said scraper (110) in circumferential direction and allows said scraper (110) a reciprocating movement in substantially axial direction; said scraper (110), including - a first groove (120) having a predetermined depth and extending along its radially outer edge surface, - and a second groove (124) and a third groove each having a predetermined depth and extending in radial direction along one front edge surface and along another front edge surface, respectively, of said scraper (110), said three grooves (120, 124) being designed such that they accommodate a portion of said guide (92) and allow said reciprocating movement of said scraper (110) in said substantially axial direction.
L~invention concerne une pompe volumétrique rotative comportant un stator (42) fixé dans un carter (20), un rotor comportant une partie d~arbre (8) et une voile en saillie radiale (12) présentant une configuration du type disque ondulé ; un grattoir (110) comportant une fente d~enclenchement (112) d~une hauteur radiale prédéterminée et d~une largeur axiale prédéterminée, la fente d~enclenchement (112) enclenchant ladite voile en saillie (12) dudit rotor ; un guide (92) retenant ledit grattoir (110), configuré comme une plate renfoncée et fixé - directement ou indirectement - dans ledit carter (20), le guide (92) retenant ledit grattoir (110) dans la direction circonférentielle et permettant audit grattoir (110) d~effectuer un mouvement de va-et-vient dans une direction essentiellement axiale ; ledit grattoir (110) comportant - une première gorge (120) présentant une profondeur prédéterminée et se prolongeant le long de sa surface de bord radialement extérieure, - et une deuxième gorge (124) et une troisième gorge présentant chacune une profondeur prédéterminée et se prolongeant dans la direction radiale respectivement le long d~une surface de bord avant et le long d~une autre surface de bord avant dudit grattoir (110), lesdites trois gorges (120, 124) étant conçues de façon à recevoir une partie dudit guide (92) et permettre ledit mouvement de va-et-vient dudit grattoir (110) dans ladite direction essentiellement axiale.
Maso Process-Pumpen Gmbh
Norton Rose Canada S.e.n.c.r.l.,s.r.l./llp
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