F - Mech Eng,Light,Heat,Weapons – 01 – C
Patent
F - Mech Eng,Light,Heat,Weapons
01
C
F01C 1/356 (2006.01) F04C 2/356 (2006.01)
Patent
CA 2126326
Summary The present invention concerns a rotary piston pump for pumping and/or metering media which are capable of flowing or chamber (4) having a cylindrical inner circumferential surface (6) in which at least one inlet (8) and at least one outlet (10) open and a rotary piston which rotates within the cylinder chamber (4), of which at least one region of its outer circumferential area (22) cooperates with and is sealed against the inner circumferential surface (6) of the cylinder chamber (4) and is regionally separated from the inner circumferential surface (6) by a radial stroke distance. On rotation (arrow 70) of the rotary piston (20), in each case a working chamber (24) which increases in size is formed in the region of the inlet (8) in order to draw in the medium and then on further rotation in the area of the outlet (10) becomes smaller in order to discharge the medium again. In each case, the working chamber (24) is blocked off during its enlargement or reduction in volume by at least one separating slide (26) upstream of the inlet (8) or downstream of the outlet (10), viewed in the direction of rotation of rotary piston (20), the separating slides being displaced back and forth (arrow 32) in an essentially radial direction to the axis of rotation (34) inside pump housing (2) in such a way that it cooperates with and is sealed against the outer circumferential surface (22) of rotary piston (20). The displacement of the separating slide (26) is performed automatically by means of a drive device (30) synchronized with rotary piston (20).
Dennison Associates
Rappenhoner Hans Richard
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