Patent ID: 9551340
Date: 2017-01-24
CPC Classifications: F01C,F04C

Claim:
1. A displacement pump comprising: a pot-shaped housing, a rotor swivel-mounted about a rotation axis inside the housing, and two blades guided in a movable manner insider the rotor, wherein the pot-shaped housing includes an inner peripheral wall having a sealing portion for tightly adjoining the rotor, and a chamber portion for tightly adjoining the blade tips and dividing the internal space of the housing into chambers, wherein the rotor has two blade receptacles for receiving and guiding the blades, wherein each internal radially extending blade tip restricts a pressure chamber in the respective blade receptacle, and both pressure chambers are fluid-connected to one another via a connection element, wherein a total volume of both pressure chambers and the connection element remains at the same level during a rotation of the rotor, at least while the blade tips are attached to the chamber portion, wherein both blade receptacles are arranged in the rotor parallel to one another and opposite to each other and are open toward the internal space of the housing on the sides facing away from one another and are closed towards the internal space of the housing on the respective other sides, wherein a partition is provided between the two blade receptacles in the rotor extending transverse to the rotational axis to partition the blade receptacles, and wherein the partition includes the connection element.