Pump housing with an interior for accommodating a pump rotor
AssigneeEcp Entwicklungsgesellschaft Mbh
InventorsLars Bredenbreuker, Joerg Schumacher
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Abstract
In a pump housing having an interior for accommodating a pump rotor, which may be transferred from a radially compressed state into a radially expanded state, and comprises a housing skin revolving in circumferential direction, as well as at least one reinforcement element, a stretch-resistant element revolving in circumferential direction is provided, which is stretched less than 5% in the expanded state as opposed to the force-free state in circumferential direction, and which limits any further expansion of the pump housing in radial direction.
Claims22
1-21. (canceled)
A pump housing having an interior for accommodating a compressible pump rotor, the housing comprising:
- a stretch-resistant, radially compressible housing skin extending in a circumferential direction, the housing skin formed of a stretch-resistant material, wherein a fully expanded housing skin defines a maximum expanded state of the housing;
- and
- a reinforcement configured to expand in the circumferential direction along with expansion of the housing skin,
- wherein a diameter of the pump housing increases along a longitudinal direction in the maximum expanded state of the housing.
The pump housing according to claim 29, wherein the ring is disposed on a radially external side of the housing skin.
The pump housing according to claim 29, wherein the ring is disposed on a radially internal side of the housing skin.
A pump housing having an interior for accommodating a compressible and an expandable pump rotor, the housing comprising;
- a stretch-resistant, radially compressible housing skin extending in a circumferential direction, the housing skin formed of a stretch-resistant material, wherein a fully expanded housing skin defines a maximum expanded state of the housing;
- at least one reinforcement, the at least one reinforcement configured to expand in the circumferential direction along with expansion of the housing skin;
- and
- wherein the material comprises at least one stretch-resistant fiber extending in the circumferential direction.
The pump housing according to claim 35, wherein the stretch-resistant fibers are selected from the group consisting of glass fibers, carbon fibers, aramide fibers, and nylon fibers.
The pump housing according to claim 39, wherein the diameter is at least one of:
- an inner diameter or an outer diameter of the pump housing.
The pump housing according to claim 39, wherein the diameter increases from a proximal end of the pump housing to a distal end of the pump housing.
Dependencies are inferred from the claim text.