Back to results
US 3,945,780 AGranted
Rotary sliding partition machine with fluid chambers at the partition ends
OwnerJean Pierre Marcelinventor
Life of this patent
Estimating the term…
Abstract
The invention relates to positive-displacement fluid machines which may be used as pumps, compressors or motors. The machine includes a piston integral with the stator and engaged in an annular cylinder formed in the rotor. Movable partitions slide in longitudinal grooves in the rotor and create fluid-work chambers in the cylinder. Cams for actuating the partitions determine, between the rotor and the stator, periodically-variable volumetric spaces filled with fluid under pressure suitable for providing an assisted control for the displacement of the partitions.
Claims6
A rotary sliding partition machine comprising:
- two units (1,3) defining between them at least one groove (7) of constant cross-section, and movable one relative to the other in the direction of said groove;
- at least one piston (6) secured to one of said units, which piston has a working section mating with the cross-section of said groove and is engaged in a fluid-tight manner in said groove;
- elongated partitions (5) with two end portions and movable in the other of said two units in a direction transverse to said groove in such a manner as to create fluid work chambers (10,11) selectively in said groove;
- means (8,9) for putting said chambers into communication with an inlet orifice and an outlet orifice for the fluid;
- two space means formed between said two units in communication with a portion of the machine filled with fluid in such a manner as also to be filled with fluid, said end portions of said partitions being displaced in said space means;
- and partition-controlling elements (17,18) secured to said piston-carrying unit (1) and located in said space means, said partition-controlling elements extending in the direction of said groove alternately in one and in the other of said two space means in the direction of movement of said partitions toward said end portions of said partitions to determine between the end portions of any two successive partitions periodically variable volumetric capacities (12-1, 12-2, 12-3, 12-4), the dimension of said partition-controlling elements in a direction at right angles both to the direction of said groove and to the direction of displacement of said partitions being such that the variation of volume each of said periodically variable volumetric capacities is equal to at least the volume of that part of each partition which penetrates cyclically into said space means.
3 more elements
A rotary sliding partition machine comprising:
- two units (1,3) capable of rotating one inside the other about an axis and each having a cylindrical surface coaxial with said axis adapted to cooperate with a mating cylindrical surface of the other of said two units, said units defining between them at least one coaxial annular groove (7) of constant cross-section;
- at least on piston (6) secured to one (1) of said two units, said piston having a cross-section mating with said cross-section of said groove and engaged in a fluid tight manner in said groove;
- partitions (5) axially movable in the other (3) of said two units and extending across said groove (7) in such a manner as to determine selectively in said groove fluid work chambers (10,11);
- means for putting said chambers into communication with an inlet orifice (8) and an outlet orifice (9) for the fluid;
- two annular spaces defined between said two units, into which said end portions of said partitions penetrate and which are connected to a portion of a machine filled with fluid in such a manner as also to be filled with fluid;
- and partition-controlling elements (17,18) secured to the piston-carrying unit (1) and located in said annular spaces said partition controlling elements extending in a circumferential direction alternately in one and in the other of said two annular spaces and in axial direction toward said end portions of said partitions to determine, between the end portions of any two successive partitions, capacities (12-1, 12-2, 12-3, 12-4) of periodically variable volume, the radial thickness (D1/2-R2) (FIG. 1) of said partition-controlling elements being shorter than the radial thickness of said annular spaces and having such a value that the variation of volume of each of said periodically variable volumetric capacities if equal to at least the volume (14) of that part of each partition which penetrates cyclically into said spaces.
3 more elements
Dependencies are inferred from the claim text.