Pump comprising a spring

A pump, comprising:

• an accommodating housing having an end-facing wall and a circumferential wall, whereby a cup-shaped accommodating space is formed;
• and
• a pump insert which is arranged in the cup-shaped accommodating space, wherein the pump insert comprises:
• a rotor;
• a first housing part and a second housing part, between which the rotor is rotatable about a rotational axis and relative to the first and second housing parts;
• and
• a stroke ring which surrounds the rotor,
• wherein a first pressure space and a second pressure space are formed between the end-facing wall and the second housing part, wherein an annular sealing element which is arranged between the end-facing wall and the second housing part encloses the second pressure space and seals it off in relation to the first pressure space, wherein a first seal is arranged between the pump insert and the accommodating housing, and a second seal is arranged between the second housing part and the circumferential wall of the accommodating housing, the second seal seals off the first pressure space in relation to a suction space, and the suction space is arranged between the first seal and the second seal, wherein the first pressure space is connected via a first outlet channel to a first delivery chamber which is formed between the rotor and the stroke ring, and the second pressure space is connected via a second outlet channel to a second delivery chamber which is formed between the rotor and the stroke ring.