Rotary valve

A rotary valve comprising a stator with an inner stator face, and a rotor with an inner rotor face arranged in sealing contact with the inner stator face, the rotor is rotatably movable to a plurality of rotor positions about a rotational axis relative to the inner stator face, the stator comprises a plurality of connection ports each being in fluidic contact with a corresponding valve orifice at the inner stator face and the rotor comprises two or more rotor interconnection paths for selective fluidic interconnection of said valve orifices with respect to the rotor position,

• wherein the stator comprises at least three inlet primary connection ports, at least three outlet primary connection ports, at least three inlet secondary connection ports and at least three outlet secondary connection ports, and
• wherein the rotor interconnection paths are arranged to:
• in the different rotor positions, interconnect the inlet primary connection ports with the inlet secondary connection ports and the outlet primary connection ports with the outlet secondary connection ports such that all of at least three inlet secondary connection ports can be connected one at the time to each of at least three inlet primary connection port while simultaneously all of at least three outlet secondary connection ports can be connected one at the time to each of at least three outlet primary connection port by rotating the rotor into the different rotor positions, wherein the rotor interconnection paths are arranged to:
• in a first rotor position:
• a first inlet primary valve orifice is connected to a first inlet secondary valve orifice, a second inlet primary valve orifice is connected to a second inlet secondary valve orifice, a third inlet primary valve orifice is connected to a third inlet secondary valve orifice, a fourth inlet primary valve orifice is connected to a fourth inlet secondary valve orifice, a first outlet primary valve orifice is connected to a first outlet secondary valve orifice, a second outlet primary valve orifice is connected to a second outlet secondary valve orifice, a third outlet primary valve orifice is connected to a third outlet secondary valve orifice and a fourth outlet primary valve orifice is connected to a fourth outlet secondary valve orifice,
• in a second rotor position:
• the first inlet primary valve orifice is connected to the fourth inlet secondary valve orifice, the second inlet primary valve orifice is connected to the first inlet secondary valve orifice, the third inlet primary valve orifice is connected to the second inlet secondary valve orifice, the fourth inlet primary valve orifice is connected to the third inlet secondary valve orifice, the first outlet primary valve orifice is connected to the fourth outlet secondary valve orifice, the second outlet primary valve orifice is connected to the first outlet secondary valve orifice, the third outlet primary valve orifice is connected to the second outlet secondary valve orifice and the fourth outlet primary valve orifice is connected to the third outlet secondary valve orifice,
• in a third rotor position:
• the first inlet primary valve orifice is connected to the third inlet secondary valve orifice, the second inlet primary valve orifice is connected to the fourth inlet secondary valve orifice, the third inlet primary valve orifice is connected to the first inlet secondary valve orifice, the fourth inlet primary valve orifice is connected to the second inlet secondary valve orifice, the first outlet primary valve orifice is connected to the third outlet secondary valve orifice, the second outlet primary valve orifice is connected to the fourth outlet secondary valve orifice, the third outlet primary valve orifice is connected to the first outlet secondary valve orifice and the fourth outlet primary valve orifice is connected to the second outlet secondary valve orifice,
• in a fourth rotor position:
• the first inlet primary valve orifice is connected to the second inlet secondary valve orifice, the second inlet primary connection is connected to the third inlet secondary valve orifice, the third inlet primary valve orifice is connected to the fourth inlet secondary valve orifice, the fourth inlet primary valve orifice is connected to the first inlet secondary valve orifice, the first outlet primary valve orifice is connected to the second outlet secondary valve orifice, the second outlet primary valve orifice is connected to the third outlet secondary valve orifice, the third outlet primary valve orifice is connected to the fourth outlet secondary valve orifice and the fourth outlet primary valve orifice is connected to the first outlet secondary valve orifice.

A rotary valve comprising a stator with an inner stator face, and a rotor with an inner rotor face arranged in sealing contact with the inner stator face, the rotor is rotatably movable to a plurality of rotor positions about a rotational axis relative to the inner stator face, the stator comprises a plurality of connection ports each being in fluidic contact with a corresponding valve orifice at the inner stator face and the rotor comprises two or more rotor interconnection paths for selective fluidic interconnection of said valve orifices with respect to the rotor position,

• wherein the stator comprises at least three inlet primary connection ports, at least three outlet primary connection ports, at least three inlet secondary connection ports and at least three outlet secondary connection ports, and
• wherein the rotor interconnection paths are arranged to:
• in the different rotor positions, interconnect the inlet primary connection ports with the inlet secondary connection ports and the outlet primary connection ports with the outlet secondary connection ports such that all of at least three inlet secondary connection ports can be connected one at the time to each of at least three inlet primary connection port while simultaneously all of at least three outlet secondary connection ports can be connected one at the time to each of at least three outlet primary connection port by rotating the rotor into the different rotor positions, wherein the rotor interconnection paths are arranged to:
• in a first rotor position:
• a first inlet primary valve orifice is connected to a first inlet secondary valve orifice, a second inlet primary valve orifice is connected to a second inlet secondary valve orifice, a third inlet primary valve orifice is connected to a third inlet secondary valve orifice, a fourth inlet primary valve orifice is connected to a fourth inlet secondary valve orifice, a first outlet primary valve orifice is connected to a first outlet secondary valve orifice, a second outlet primary valve orifice is connected to a second outlet secondary valve orifice, a third outlet primary valve orifice is connected to a third outlet secondary valve orifice and a fourth outlet primary valve orifice is connected to a fourth outlet secondary valve orifice,
• in a second rotor position:
• the first inlet primary valve orifice is connected to the fourth inlet secondary valve orifice, the second inlet primary valve orifice is connected to the first inlet secondary valve orifice, the third inlet primary valve orifice is connected to the second inlet secondary valve orifice, the fourth inlet primary valve orifice is connected to the third inlet secondary valve orifice, the first outlet primary valve orifice is connected to the fourth outlet secondary valve orifice, the second outlet primary valve orifice is connected to the first outlet secondary valve orifice, the third outlet primary valve orifice is connected to the second outlet secondary valve orifice and the fourth outlet primary valve orifice is connected to the third outlet secondary valve orifice,
• in a third rotor position:
• the first inlet primary valve orifice is connected to the third inlet secondary valve orifice, the second inlet primary valve orifice is connected to the fourth inlet secondary valve orifice, the third inlet primary valve orifice is connected to the first inlet secondary valve orifice, the fourth inlet primary valve orifice is connected to the second inlet secondary valve orifice, the first outlet primary valve orifice is connected to the third outlet secondary valve orifice, the second outlet primary valve orifice is connected to the fourth outlet secondary valve orifice, the third outlet primary valve orifice is connected to the first outlet secondary valve orifice and the fourth outlet primary valve orifice is connected to the second outlet secondary valve orifice,
• in a fourth rotor position:
• the first inlet primary valve orifice is connected to the second inlet secondary valve orifice, the second inlet primary connection is connected to the third inlet secondary valve orifice, the third inlet primary valve orifice is connected to the fourth inlet secondary valve orifice, the fourth inlet primary valve orifice is connected to the first inlet secondary valve orifice, the first outlet primary valve orifice is connected to the second outlet secondary valve orifice, the second outlet primary valve orifice is connected to the third outlet secondary valve orifice, the third outlet primary valve orifice is connected to the fourth outlet secondary valve orifice and the fourth outlet primary valve orifice is connected to the first outlet secondary valve orifice,
• wherein the rotor interconnection paths are composed of partly circular grooves in a surface of the rotor that are concentrically around the center of the rotor with different radii with one secondary valve orifice positioned within each one of the partly circular grooves.