Abstract: An internal gear pump for pumping fuel from a suction conduit (18) into a pressure conduit (19) has a pump housing (1) in which an internal ring gear (5) and an externally toothed pinion (3), the latter driven by a drive shaft (2), are supported. The pinion (3) is disposed eccentrically to the ring gear (5) and cooperates with the ring gear (5) to generate a pumping action. The pinion (3) and the ring gear (5) rest with their one face end on the pump housing (1) and with their other face end on a sealing plate (13). To lengthen the service life of the internal gear pump, the suction conduit (18) is disposed in the sealing plate (13). The sealing plate (13) is movable relative to the pump housing (1) such that the spacing between the suction conduit (18) and the pressure conduit (19) can be varied.

Abstract: A biphase conveyor of a mixture of fine solid components with pasty and liquid components based on the use of rotational and periodic inertial forces is described. In accordance with the present invention the conveyor comprises a mechanism which impresses on the identical rotor pair R1 and R2 a periodic oscillatory motion with identical frequency and with phase other than 90°. The oscillation mechanism can consist indifferently of a connecting rod & crank system or a rotating bearing with eccentric axis between two guides fastened to the rotor. On R1 is rigidly fastened a biphase circuit whose inlet E01 is connected with the feeder of the materials to be conveyed and the outlet U01 with the inlet E02 of an identical biphase circuit fastened on R2 whose outlet U02 is connected with the user. All this develops a resultant of continuous inertial forces with constant direction from E01 to U02 which causes the flow of the materials making up the mixture.